Qube Research & Technologies (QRT) is a global quantitative and systematic investment manager, operating in all liquid asset classes across the world. We are a technology and data driven group implementing a scientific approach to investing. Combining data, research, technology and trading expertise has shaped QRT’s collaborative mindset which enables us to solve the most complex challenges. QRT’s culture of innovation continuously drives our ambition to deliver high quality returns for our investors.

Your future role within QRT:

As a Lead Full Stack Web Developer, you will:

• Lead a small team of 3 developers based in EMEA and APAC.
• Collaborate with global teams to design, build and maintain internal web-based platforms and developer tools.
• Work closely with backend, DevOps and infrastructure engineers to deliver robust and scalable solutions across our hybrid cloud and on-prem environments.
• Act as a bridge between user experience and technical execution, ensuring high usability, performance and reliability.
• Be involved in every stage of the software lifecycle: from ideation and design to deployment and continuous improvement.
• Help define best practices in frontend/backend architecture.

Your present skill set:

• Strong experience with Vue.js for frontend development (React is a plus but Vue is preferred).
• Proficiency in Python and FastAPI for backend services.
• Solid knowledge of TypeScript and frontend development best practices.
• Hands-on experience with security protocols such as OAuth2 and JWT.
• Familiarity with CI/CD pipelines and modern deployment workflows.
• Experience working with the AWS stack and managing on-premises production systems.
• Prior experience in project management or comparable responsibilities.
• Excellent communication skills and a proactive mindset for working with a distributed team across time zones.
• A strong sense of ownership and the ability to work autonomously while aligning with team goals.

QRT is an equal opportunity employer. We welcome diversity as essential to our success. QRT empowers employees to work openly and respectfully to achieve collective success. In addition to professional achievement, we are offering initiatives and programs to enable employees achieve a healthy work-life balance.

What You’ll Do:

The Monolith AI Engineering Team at CoreWeave is responsible for building and scaling the core platform that powers the world’s most advanced engineering simulation and AI workflows — our ambition is to become the super‑intelligent AI test lab for the engineering industry, helping customers “ship science, faster.” From evolving distributed architecture to enabling the next generation of agentic interfaces and physical AI, this team delivers the performant, reliable, and scalable foundation trusted by the world’s largest engineering companies.

The Fullstack Engineer (Frontend Focus) will own and evolve the Monolith platform’s product surface — the data‑heavy, workflow‑centric web experience where engineers design experiments, compare runs, interact with agents, and turn complex physical test data into decisions. You’ll partner closely with Design, Product, and Backend Engineering to ship UI and UX that feel fast, intuitive, and trustworthy for non‑ML expert engineers, while also contributing to our Python backend services when needed.

About the Role:

We’re targeting an IC5 Fullstack Staff Engineer with a strong frontend background, and are also open to exceptional Senior Fullstack Engineer II (IC4) candidates who can operate at staff‑like scope. The role is heavily frontend‑weighted (roughly 80–90%), focused on owning the Monolith web application: component architecture, design system evolution, performance, and UX for complex, data‑rich workflows. You’ll also work across our Python services (FastAPI/Flask) to shape and integrate APIs, bring new platform capabilities to the UI, and occasionally deliver backend features that unlock better user experiences.

You’ll be a key partner in defining how engineers experience Monolith’s “AI test lab” — from agent chat to experiment exploration and monitoring — and will help set the bar for frontend quality, reliability, and developer experience across the team.

In this role, you will:

Frontend Ownership & Experience

• Own significant areas of the Monolith frontend, from architecture and component design to implementation, refactors, and ongoing maintenance.
• Design and build modern, responsive UIs using React and TypeScript, with a focus on complex, data‑heavy views (tables, charts, experiment timelines, dashboards, agents) that remain fast and understandable for users.
• Collaborate with Design to evolve our design system and component library, ensuring consistency, accessibility, and a high‑quality visual language across the product.
• Drive frontend performance improvements (bundle size, rendering strategies, network usage) to keep the app responsive even under large datasets and long‑running workflows.
• Champion accessibility and usability, ensuring the interface works well for time‑pressed engineers in demanding environments.

Fullstack Development & Platform Integration

• Work closely with backend engineers on our Python services to design clean API contracts, shape data models for UI needs, and debug issues across the stack.
• Implement and integrate backend functionality (primarily in Python) when it materially improves UX or unlocks new workflows, including occasional work on API endpoints, background tasks, and data transformations.
• Collaborate with our agent and platform teams to expose agentic capabilities (e.g. platform agent) safely and intuitively in the frontend experience.
• Contribute to fullstack observability — instrumenting both frontend and backend for metrics, logging, and tracing, and using that data to guide product and performance improvements.

Collaboration, Quality & Developer Experience

• Work hand‑in‑hand with Product and Design to scope projects, define success criteria, and break down ambiguous problems into iterative deliverables.
• Maintain a high bar for code quality through thoughtful design, code reviews, tests (unit, integration, and E2E), and documentation.
• Help improve our frontend developer experience — build tooling, workflows, and patterns that make it easier for the team to ship reliable UI quickly (Storybook/design‑system improvements, local dev ergonomics, CI checks, etc.).
• Mentor other engineers on frontend best practices, UX thinking, and effective fullstack collaboration.

Who You Are:

Experience & Level

• Typically 7+ years of professional software engineering experience, including substantial time building and maintaining complex, user‑facing web applications as a fullstack or frontend‑leaning engineer.
• A track record of operating at Senior/Staff scope: owning significant product surface area, driving cross‑team projects, and making architectural decisions that last.

Frontend Expertise

• Advanced proficiency in React and TypeScript, with experience structuring large‑scale frontends (modules, state management, routing, data‑fetching patterns).
• Strong command of web fundamentals
• Experience building data‑heavy and visualization‑centric UIs — e.g. dashboards, charts, time‑series visualizations, experiment or metrics explorers.
• Familiarity with design systems and component libraries (Storybook or similar), and an eye for when design details materially impact user trust and productivity.

Backend & Platform Skills

• Solid experience with Python in production environments (FastAPI, Flask, or Django), including building and integrating REST or GraphQL APIs that power frontend experiences.
• Comfortable working in service‑oriented or microservice architectures, reasoning about data flows, failure modes, and performance across boundaries.
• Experience with SQL databases (e.g. PostgreSQL) and practical data modelling for product features.
• Familiarity with modern cloud and container stacks (Docker, Kubernetes, and at least one major cloud provider).

Quality & Ways of Working

• Strong habits around testing (unit, integration, and E2E) and CI/CD for frontend and backend changes.
• Effective collaborator with Product, Design, and cross‑functional stakeholders; clear written and verbal communicator who can explain trade‑offs and constraints.
• Comfortable working in a fast‑moving, high‑ambiguity environment where we balance shipping quickly with maintaining a reliable platform.

Preferred:

• Experience building UIs for technical or data‑savvy users (ML engineers, data scientists, physical test engineers, or similar), especially in B2B SaaS products.
• Familiarity with GraphQL and typed API clients in React (or strong REST plus a desire to pick up GraphQL quickly).
• Experience with SSR/SSG frameworks, particularly for performance‑sensitive dashboards.
• Prior work with time‑series and experiment tracking tooling, ML platforms, or analytics products.
• Exposure to ML/AI workflows (experiments, training runs, evaluations, agents) and interest in “tools for AI engineers” as a product domain.
• Experience with frontend observability (Sentry, Datadog, OpenTelemetry, etc.) and using telemetry to guide UX improvements.

Wondering if you’re a good fit?

We believe in investing in our people, and value candidates who can bring their own diversified experiences to our teams — even if you aren’t a 100% skill or experience match. Here are a few qualities we’ve found compatible with our team. If some of this describes you, we’d love to talk.

• Product‑minded craftsperson – you care as much about the user experience and clarity of a workflow as you do about the quality of the code behind it.
• Detail‑oriented on complex UX – you enjoy making intricate, data‑heavy interfaces feel simple and intuitive, and you’re willing to sweat the small interactions to get there.
• Pragmatic and velocity‑driven – you know when to build the perfect abstraction and when to ship a well‑engineered, incremental improvement that moves the product forward.
• Collaborative and empathetic – you build strong relationships with engineers, designers, and PMs, and you’re comfortable iterating based on feedback from customers and colleagues.
• Owner’s mindset – you feel responsible for the experience end‑to‑end, follow through on problems across the stack, and care deeply about the impact your work has on customers and the business.

Why CoreWeave?

At CoreWeave, we work hard, have fun, and move fast! We’re in an exciting stage of hyper‑growth that you will not want to miss out on. We’re not afraid of a little chaos, and we’re constantly learning. Our team cares deeply about how we build our product and how we work together, which is represented through our core values:

• Be Curious at Your Core
• Act Like an Owner
• Empower Employees
• Deliver Best‑in‑Class Client Experiences
• Achieve More Together

We support and encourage an entrepreneurial outlook and independent thinking. We foster an environment that encourages collaboration and enables the development of innovative solutions to complex problems. As we get set for takeoff, the organization’s growth opportunities are constantly expanding. You will be surrounded by some of the best talent in the industry, who will want to learn from you, too. Come join us!

What You’ll Do:

The Monolith AI Platform Engineering Team at CoreWeave is responsible for transitioning existing client environments to Monolith AI’s next-generation platform, maintaining the high velocity needed to support a rapidly growing customer base. This team works closely with Customer Success and Product to ensure migrations are accurate, meet defined business requirements, and are delivered at scale.

About the Role:

Monolith AI is seeking a talented Software Developer for an intensive 3-month migration project transitioning existing client environments to our next-generation platform. This role requires a developer who excels at rapidly understanding undocumented systems, extracting clarity from complex database structures, and building practical migration tooling in Python. You’ll work closely with our 15-person technical team (currently doubling), collaborating extensively with Customer Success and Product to ensure migrations meet defined business requirements while maintaining high velocity.

In this role, you will:

• Rapid System Understanding
  • Quickly grasp existing PostgreSQL database schemas through code inspection, team discussions, and reverse engineering
  • Understand new platform database architecture and how legacy data maps to the new structure
  • Work with pickle files and S3 object storage to understand serialized data structures
  • Extract clarity from poorly documented legacy systems through hands-on investigation
• Cross-Functional Requirements Gathering
  • Collaborate with Customer Success to understand client migration requirements and acceptance criteria
  • Partner with Product team to define and iterate on what constitutes acceptable migration outcomes
  • Balance technical constraints with business needs to establish pragmatic migration standards
  • Clarify ambiguous requirements and drive decisions on edge cases and trade-offs

• Product Context & Impact Analysis
  • Understand how database entries and S3-stored objects drive UI behavior and user workflows
  • Work with the existing team to learn system behavior through discussions and knowledge transfer
  • Identify how legacy data structures distribute across new platform tables and storage

• Migration Tool Development
  • Build Python migration scripts to convert legacy notebooks to the new platform format
  • Work with Flask and FastAPI layers to understand API interactions and data flow
  • Handle pickle file deserialization and data transformation logic
  • Implement validation against defined Customer Success requirements (not 100% data integrity)

• Velocity & Communication Management
  • Maintain rapid project pace with tight 3-month timeline
  • Provide frequent progress updates to the tech lead on development speed and blockers
  • Proactively communicate risks, timeline concerns, and decision points
  • Make pragmatic technical decisions that balance quality with delivery speed

• Testing & Validation Against Requirements
  • Test migration outputs against Customer Success acceptance criteria
  • Validate migrated notebooks meet defined business requirements
  • Identify and communicate gaps between migration output and requirements for product decisions

• Process Documentation & Knowledge Transfer
  • Document the migration process, key decisions, and data mapping logic
  • Create runbooks for executing migrations and handling common issues
  • Transfer knowledge primarily through discussions with the existing team
  • Prepare materials enabling team to execute and troubleshoot migrations post-contract

Who You Are:

• 3+ years of professional software development experience
• 2+ years working with Python in production environments
• Experience working with PostgreSQL databases and complex data structures
• Demonstrated ability to reverse engineer and understand undocumented systems
• Previous work in fast-paced, deadline-driven environments
• Programming: Strong Python proficiency including handling pickle files, data processing, and object serialization
• Databases: Solid understanding of PostgreSQL including complex data structures, relationships, and schema interpretation
• APIs: Familiarity with Flask and/or FastAPI frameworks and RESTful API concepts
• Cloud Storage: Experience with S3 or similar object storage services for reading/writing data
• System Investigation: Ability to read and understand existing codebases to extract system behavior
• Version Control: Proficiency with Git and collaborative development workflows

Preferred:

• Experience with data migration or system modernization projects
• Background working with legacy systems or technical debt remediation
• Familiarity with Jupyter notebooks or similar computational environments
• Previous contract or consulting roles requiring rapid onboarding
• Experience in startup or scale-up environments with evolving requirements
• Knowledge of data serialization formats and their trade-offs
• Prior work extracting understanding from poorly documented codebases
• Experience balancing technical perfection with business pragmatism

Wondering if you’re a good fit? We believe in investing in our people, and value candidates who can bring their own diversified experiences to our teams – even if you aren’t a 100% skill or experience match. Here are a few qualities we’ve found compatible with our team. If some of this describes you, we’d love to talk.

• Rapid Learner: You can quickly understand complex, undocumented systems through code inspection and experimentation, and extract clarity from incomplete information.
• Pragmatic & Velocity-Driven: You thrive in fast-paced environments with tight deadlines, make practical trade-offs between thoroughness and speed, and maintain a strong bias toward action and delivery.
• Communicator: You proactively provide progress updates, surface blockers early, and clearly articulate technical concepts to non-technical stakeholders like Customer Success and Product.
• Collaborative: You build relationships quickly, partner effectively with Customer Success and Product to understand business requirements, and actively engage with the existing technical team to facilitate knowledge transfer.
• Owner: You take full ownership of deliverables despite a short contract timeline, and maintain composure and productivity in a dynamic, growing organisation (team currently doubling).
• Results-Focused: You prioritise work that directly impacts migration success, stay transparent about what’s achievable within timeline constraints, and are accountable when risks emerge.

Why Monolith AI?

At Monolith AI, we work hard, have fun, and move fast! We’re in an exciting stage of hyper-growth that you will not want to miss out on. We’re not afraid of a little chaos, and we’re constantly learning. Our team cares deeply about how we build our product and how we work together, which is represented through our core values:

• Be Curious at Your Core
• Act Like an Owner
• Empower Employees
• Deliver Best-in-Class Client Experiences
• Achieve More Together

We support and encourage an entrepreneurial outlook and independent thinking. We foster an environment that encourages collaboration and enables the development of innovative solutions to complex problems. As we get set for takeoff, the growth opportunities within the organisation are constantly expanding. You will be surrounded by some of the best talent in the industry, who will want to learn from you, too. Come join us!

**This is a hybrid position open to candidates in the London area, only requiring 2 days in the office**

We’re looking for a Senior Data Scientist to help build, scale, and operate production‑grade machine learning systems that power a high‑growth SaaS platform. In this role, you’ll take models from experimentation to real‑world impact—supporting real‑time decisioning, predictive analytics, and data‑driven product capabilities used by customers at scale. 

You’ll work closely with engineering, product, and data teams to deliver ML solutions that are reliable, observable, and performant in a multi‑tenant SaaS environment. 

HOW WE’LL BE WINNING TOGETHER DAY TO DAY

• Prediction models — Training and optimizing neural networks to predict eCommerce events across massive datasets 
• Real‑time inference — Designing and deploying low‑latency models with millisecond‑level time budgets 
• Production ML at scale — Building and operating ML models and web services handling 1,000+ RPS

WE SHOULD TALK IF THIS SOUNDS LIKE YOU \

• 4+ years of experience building machine learning models, with a strong emphasis on neural networks
• Strong proficiency in Python, including notebooks and production‑grade code 
• Experience in training and deploying neural network models in production environments 
• Hands‑on experience with ML frameworks such as PyTorch and TensorFlow 
• Experience building web services and APIs using Flask, FastAPI, or similar frameworks 
• Comfortable working in Linux environments, including shell scripting for monitoring and debugging applications 

Why You Should Join the Internationalisation Platform Team

The i18n Platform team owns all the ways we create, process and deliver internationalisation features for our users at Klaviyo.  As a Senior Software Engineer, you will be a key contributor and mentor leading complex, multi-component projects across the i18n platform. You will be involved in how we manage translations, deliver new localisation features, handle multiple currencies, and improve our internationalisation processes.

You can look forward to being a part of a highly technical team with significant domain expertise. We oversee tools and services that are leveraged across the organization from the frontend UI to backend data.  The team also owns and orchestrates several services to manage the pipeline of translations with our localisation team.

As we look toward the next 6-12 months, we aim to focus on delivering LLM workflows to improve our translation capabilities, increase the availability of our Smart Translations product, and develop new features for handling different currencies in multiple regions.

Why you should join

We foster a culture of psychological safety, collaboration, and work/life balance through flexible hours and structured on-call rotations.

We practice a “you make it, you support it” attitude to our products and provide on-call support in case of incidents.  We offer compensation for on-call rotations and expect to maintain a very low number of incidents requiring call-out.  New engineers are onboarded to the on-call rotation gradually, typically joining the active rotation after their first 6 months and thorough training.
We are committed to your growth. You will be paired with a dedicated mentor and given time for focused skill development, including opportunities to attend relevant industry conferences and a growing suite of learning & development opportunities.

We enjoy a high degree of autonomy to generate innovative solutions across the entire system, learning directly from customers and suggesting cool new approaches.

Free lunch at our Aldgate office three times a week
Highly competitive salary, equity package, and comprehensive health benefits.

How You Will Make a Difference

• You will lead and drive the design and execution of complex, business-critical projects across the Internationalisation platform.
• You will be responsible for implementing new functionality and establishing design patterns for complex, multi-component systems.
• You will take full lifecycle ownership of features and projects, driving requirement refinement and setting the pace for all phases of execution.
• You will proactively collaborate with cross-functional partners to influence product requirements and communicate technical needs to other teams.
• You will be an active participant in all team processes and accountable for meeting the health and operational excellence (SLOs) of your area of ownership.
• You will help interview new engineering team members and actively mentor junior engineers in your product area.

What we are looking for

• A strong interest in internationalisation, localisation, and translation.
• A desire to serve our international customers and expand Klaviyo’s capabilities.
• 5+ years of demonstrable experience delivering high-quality, customer-facing software.
• Deep understanding of complex systems (or similar large-scale distributed systems) and strong systems thinking, with a proven ability to scale, observe, and maintain services.
• Familiarity with full stack development concepts and a strong aptitude to learn.
• Experience working with both monolithic and microservices architectures
• Experience with database design that can withstand high query volumes
• Experience debugging performance issues and improving application performance
• An interest and aptitude for collaboration across teams and disciplines
• An understanding of challenges in developing software across multiple languages and catering to non-English speaking users
• Thrives in a fast paced, customer focused, and strategic environment.
• A track record of prioritizing the needs and success of the company overall above the immediate needs of the team.

Nice to Have

• Proven experience with large-scale system design and driving the technical/architectural evolution of a product area.
• Experience with AWS or any similar cloud provider
• Experience with billing systems in multiple currencies

Technologies we use (not exhaustive):

• React, TypeScript, JavaScript, HTML, CSS
• Babel, Webpack, Eslint, Prettier
• REST, GraphQL, JSON Schema, JSON:API
• CDNs (Fastly, Cloudflare)
• GitHub, BuildKite
• MySQL, Redis, Pulsar, Memcache
• Python, Django, FastAPI, Go, Gin, React, RabbitMQ, Celery, MySQL, DynamoDB, Cassandra, Redis
• DeepL, Smartling, Stripe
• Amazon Web Services (EC2, RDS, Aurora, AWS Translate, etc.), Terraform, Kubernetes, Splunk, Chronosphere, Cortex, DX, and other modern DevOps tools
• Bedrock, Claude, Cursor, LangChain, OpenAI, Gemini,

We use Covey as part of our hiring and / or promotional process. For jobs or candidates in NYC, certain features may qualify it as an AEDT. As part of the evaluation process we provide Covey with job requirements and candidate submitted applications. We began using Covey Scout for Inbound on April 3, 2025.

Please see the independent bias audit report covering our use of Covey here

Senior Full-Stack Engineer - AI Agent Platform

London Victoria Office - Hybrid: 4 days in the office, 1 day working from home

Mid-Full-Stack Engineer - AI Agent Platform

London Victoria Office - Hybrid: 4 days in the office, 1 day working from home

Senior Software Engineer (Money Flows)

Ebury Madrid or Malaga Office - Hybrid: 4 days in the office, 1 day working from home

The Engineering team at Ebury is seeking a Senior Software Engineer to play a crucial part in our team. As part of our diverse team spread across South America and Europe, the successful candidate will be entrusted with the development and optimisation of our multi-currency account systems, incoming funds, and outgoing payment processes. You'll be required to make significant contributions to our platform as we continually aim to bring it to the next level and deliver the best payment experience for our clients and operational teams.

As a Senior Software Engineer in our team, your technical knowledge and skills will be paramount to our innovation and growth. We value collaboration and commitment, operating within a distributed setup where effective working is key.

What we offer:

● Competitive salary and benefits package
● Discretionary bonus based on performance
● Being part of a dynamic environment, with global exposure
● Continued personal development through training and certification

Responsibilities:

● Contribute to the development of the next iteration of our platform, designed to streamline cross-border payments and the international collection of funds.
● Collaborate with your colleagues and engineering leaders to design new services and components.
● Coach and mentor less experienced team members, positively changing the trajectory of the team to increase the overall effectiveness and efficiency.
● Lead product initiatives from analysis to delivery, working closely with the product and operational teams to ensure everyone is on the same page.

About you:
● You have extensive experience in developing complex software systems.
● Experience with Python, Django, FastAPI, PostgreSQL, Kafka, AWS, Kubernetes, Prometheus, Kibana.
● Since you will work side by side with colleagues from different countries, you will be able to communicate clearly and concisely your ideas in English, both written and spoken.
● As we work closely with Product members, you should be able to collaborate with stakeholders to gather and clarify requirements, ensuring that technical solutions align with business objectives and user needs.
● You are adept at both constructing and managing services. As such, you should have proficiency in establishing standard APIs, incorporating monitoring systems and alerting services, along with a strong expertise in integrating external systems.
● Quality is important to us, we expect your code to be testable and well covered with unit and integration tests. We use CI Jenkins pipelines and terraform for the deployment of services and infrastructure. From time to time, you might need to contribute to it.
● In line with our 'You build it, you own it' philosophy, we expect you to take full ownership of the products you build, embracing both their development and ongoing maintenance.

If you’re excited about this job opportunity but your background doesn’t match exactly the requirements in the job description, we strongly encourage you to apply anyway. You may be just the right candidate for this or other positions we have.

#LI-JB1

Senior Software Engineer (Money Flows)

Ebury London Office - Hybrid: 4 days in the office, 1 day working from home

The Engineering team at Ebury is seeking a Senior Software Engineer to play a crucial part in our team. As part of our diverse team spread across South America and Europe, the successful candidate will be entrusted with the development and optimisation of our multi-currency account systems, incoming funds, and outgoing payment processes. You'll be required to make significant contributions to our platform as we continually aim to bring it to the next level and deliver the best payment experience for our clients and operational teams.

As a Senior Software Engineer in our team, your technical knowledge and skills will be paramount to our innovation and growth. We value collaboration and commitment, operating within a distributed setup where effective working is key.

What we offer:

● Competitive salary and benefits package
● Discretionary bonus based on performance
● Being part of a dynamic environment, with global exposure
● Continued personal development through training and certification

Responsibilities:

● Contribute to the development of the next iteration of our platform, designed to streamline cross-border payments and the international collection of funds.
● Collaborate with your colleagues and engineering leaders to design new services and components.
● Coach and mentor less experienced team members, positively changing the trajectory of the team to increase the overall effectiveness and efficiency.
● Lead product initiatives from analysis to delivery, working closely with the product and operational teams to ensure everyone is on the same page.

About you:
● You have extensive experience in developing complex software systems.
● Experience with Python, Django, FastAPI, PostgreSQL, Kafka, AWS, Kubernetes, Prometheus, Kibana.
● Since you will work side by side with colleagues from different countries, you will be able to communicate clearly and concisely your ideas in English, both written and spoken.
● As we work closely with Product members, you should be able to collaborate with stakeholders to gather and clarify requirements, ensuring that technical solutions align with business objectives and user needs.
● You are adept at both constructing and managing services. As such, you should have proficiency in establishing standard APIs, incorporating monitoring systems and alerting services, along with a strong expertise in integrating external systems.
● Quality is important to us, we expect your code to be testable and well covered with unit and integration tests. We use CI Jenkins pipelines and terraform for the deployment of services and infrastructure. From time to time, you might need to contribute to it.
● In line with our 'You build it, you own it' philosophy, we expect you to take full ownership of the products you build, embracing both their development and ongoing maintenance.

If you’re excited about this job opportunity but your background doesn’t match exactly the requirements in the job description, we strongly encourage you to apply anyway. You may be just the right candidate for this or other positions we have.

#LI-JB1

Senior Software Engineer (Money Flows)

Ebury Madrid or Malaga Office - Hybrid: 4 days in the office, 1 day working from home

The Engineering team at Ebury is seeking a Senior Software Engineer to play a crucial part in our team. As part of our diverse team spread across South America and Europe, the successful candidate will be entrusted with the development and optimisation of our multi-currency account systems, incoming funds, and outgoing payment processes. You'll be required to make significant contributions to our platform as we continually aim to bring it to the next level and deliver the best payment experience for our clients and operational teams.

As a Senior Software Engineer in our team, your technical knowledge and skills will be paramount to our innovation and growth. We value collaboration and commitment, operating within a distributed setup where effective working is key.

What we offer:

● Competitive salary and benefits package
● Discretionary bonus based on performance
● Being part of a dynamic environment, with global exposure
● Continued personal development through training and certification

Responsibilities:

● Contribute to the development of the next iteration of our platform, designed to streamline cross-border payments and the international collection of funds.
● Collaborate with your colleagues and engineering leaders to design new services and components.
● Coach and mentor less experienced team members, positively changing the trajectory of the team to increase the overall effectiveness and efficiency.
● Lead product initiatives from analysis to delivery, working closely with the product and operational teams to ensure everyone is on the same page.

About you:
● You have extensive experience in developing complex software systems.
● Experience with Python, Django, FastAPI, PostgreSQL, Kafka, AWS, Kubernetes, Prometheus, Kibana.
● Since you will work side by side with colleagues from different countries, you will be able to communicate clearly and concisely your ideas in English, both written and spoken.
● As we work closely with Product members, you should be able to collaborate with stakeholders to gather and clarify requirements, ensuring that technical solutions align with business objectives and user needs.
● You are adept at both constructing and managing services. As such, you should have proficiency in establishing standard APIs, incorporating monitoring systems and alerting services, along with a strong expertise in integrating external systems.
● Quality is important to us, we expect your code to be testable and well covered with unit and integration tests. We use CI Jenkins pipelines and terraform for the deployment of services and infrastructure. From time to time, you might need to contribute to it.
● In line with our 'You build it, you own it' philosophy, we expect you to take full ownership of the products you build, embracing both their development and ongoing maintenance.

If you’re excited about this job opportunity but your background doesn’t match exactly the requirements in the job description, we strongly encourage you to apply anyway. You may be just the right candidate for this or other positions we have.

Feel free to connect with me on LinkedIn - Freddie Mugridge

#LI-JB1

Team: Technology

Salary Range: £90,000 - £100,000 per annum

Role Type: Full-Time, Permanent 

Start date: As soon as possible 

Visa / Sponsorship Available: Not Available 

The Lead AI Engineer Role  

As we continue our mission to be the market-leading insurance platform for agile insurers, we’re excited to begin the search for a Lead AI Engineer to help shape the next generation of intelligent capabilities within the Send platform.

In this role, you will lead the design, development, and productionisation of AI-powered services built on top of public large language models (LLMs), enabling insurers to unlock deeper insights, automate workflows, and enhance underwriting decisions. You will own the end-to-end lifecycle of AI features-from rapid prototyping through to resilient, observable, production-grade systems-within a regulated financial services environment.

This is a hands-on leadership role where you will set the technical direction for AI engineering at Send, mentor a growing team, and collaborate closely with data engineering, product, and compliance teams. Together, you will deliver AI capabilities that are scalable, secure, auditable, and deliver real commercial value to insurers using the Send platform.

About Send 

We are the leading insurance platform, trusted by world-class insurers to help them navigate complex risks.

Our platform helps commercial insurers, MGAs and reinsurers modernise underwriting, cut friction, and grow profitably in complex markets.

We are the only platform purpose-built for multi-operating models. Our platform combines deep industry expertise with the ability to support a range of strategies and operating models.

Our Story:

We started Send because insurers had been let down for too long by rigid, legacy technology. The industry was ready to work differently – and so were we.

In 2017, our three founders set out with a clear vision: to transform commercial underwriting by combining advanced technology with deep industry expertise.

By 2019, we delivered our first commercial and specialty underwriting platform for Aviva GCS, streamlining operations, increasing efficiency, and giving teams the visibility they needed to make faster, better decisions.

Over the next six years, we rolled out multiple underwriting platform solutions across the UK and US, proving that modern underwriting technology could be powerful, flexible, and rapidly delivered.

In 2022, we won three industry awards and secured a $10m Series A to accelerate our growth. By 2024, Send was recognised as a “Leader” by IDC, Celent, and Datos – a testament to our momentum and our customers’ success.

In 2025, we doubled in size and deepened our expertise in both the London Market and North America – becoming the only underwriting platform purpose-built to support multiple operating models.

But we're not finished. Insurers want orchestration, not siloed systems. That’s why we continue to invest in our platform and orchestration engine – helping our customers win better business, faster.

The Send Team 

Over the past two years, Send has experienced significant growth, expanding our team by over 50% to more than 120 people. At the start of 2024, our team was primarily based in the UK and Poland. Since then, we’ve taken major steps toward building a global presence, with team members now located across the UK, US, India, and Ireland-all working collaboratively toward our vision of becoming the market-leading software platform for agile insurers.

Our Funding 

From 2017 to 2022, we bootstrapped our growth journey, building a profitable and stable company. In November 2022, following a year of strong customer and team growth, we secured $10 million in Series A funding to accelerate our expansion across the UK and US, as well as to further enhance our product development. We’re proud to have the support and expertise of our investors, Mercia and Breega.

We are now preparing for our Series B round and are excited about the growth acceleration this will enable. 

What You’ll Be Doing as a Lead AI Engineer 

 Designing and delivering AI-powered services

• Architect and build production-grade services that integrate with public LLM APIs (such as OpenAI, Anthropic, Google, Cohere, or similar).
• Develop capabilities including prompt engineering, retrieval-augmented generation (RAG), fine-tuning pipelines, and agent-based workflows.
• Design robust API layers, orchestration patterns, and evaluation frameworks to ensure reliable, cost-efficient, and low-latency AI features.
• Implement guardrails, content filtering, and output validation suitable for a regulated financial services environment.

Building and evolving the AI platform

• Define and evolve Send’s AI platform architecture, including embedding stores, vector databases, prompt versioning, and experiment tracking.
• Build containerised, cloud-native services using modern infrastructure approaches (Docker, Kubernetes, serverless).
• Develop CI/CD pipelines, automated testing frameworks, and infrastructure-as-code to support reliable AI delivery.
• Ensure strong observability across AI workloads, including logging, tracing, token usage monitoring, drift detection, and model performance dashboards.

AI governance, compliance, and risk

• Partner with compliance, risk, and information security teams to ensure AI capabilities meet regulatory expectations within financial services (FCA, PRA, GDPR).
• Lead the implementation and ongoing compliance of ISO 42001 (AI Management Systems), embedding governance and documentation into engineering processes.
• Establish model governance practices such as audit trails, explainability documentation, bias testing, and human-in-the-loop review processes.
• Own and evolve the responsible AI framework, covering data provenance, consent management, and model risk oversight.

Providing technical leadership

• Set the technical vision and roadmap for AI engineering at Send, evaluating emerging models, tooling, and techniques.
• Mentor and support engineers across the team, fostering a culture of experimentation, engineering excellence, and continuous learning.
• Represent AI engineering in cross-functional planning, architecture discussions, and strategic stakeholder conversations.

The Skills and Experience Needed for the Lead AI Engineer Role 

• Significant software engineering experience (typically 5+ years), with a strong focus on Python in production environments, including modern frameworks such as FastAPI or Starlette, dependency management, and robust testing practices.
• Proven experience building and shipping production services that integrate with public LLM APIs, including prompt design, agent or chain orchestration (e.g. LangChain, LlamaIndex, Semantic Kernel, or similar), and retrieval-augmented generation (RAG) architectures.
• Strong understanding of LLM fundamentals, including tokenisation, context windows, embeddings, vector similarity search, and the trade-offs between fine-tuning and in-context learning, alongside practical approaches to evaluating model performance.
• Hands-on experience building cloud-native AI/ML infrastructure on platforms such as AWS, Azure, or GCP, including serverless compute, managed containers, object storage, and scalable networking.
• Experience working within a regulated environment (financial services, insurance, banking, or fintech), with an understanding of how compliance, governance, and risk considerations influence engineering decisions.
• Solid data engineering fundamentals, including experience with SQL, columnar data formats such as Parquet or Arrow, modern ETL/ELT patterns, and data pipeline orchestration tools such as Airflow or Prefect.
• A track record of technical leadership, contributing to architecture decisions, setting engineering standards, reviewing code, and mentoring other engineers within a team.

Nice to have

• Experience working with open-source or self-hosted LLMs (such as Llama or Mistral) and model serving frameworks like vLLM, TGI, or Triton.
• Familiarity with LLM evaluation and prompt-testing frameworks to systematically measure output quality across different use cases.
• Knowledge of advanced retrieval techniques such as hybrid search, re-ranking, knowledge graphs, or structured information extraction.
• Experience designing multi-agent systems, tool-use patterns, or autonomous AI workflows in production environments.
• Experience in insurance, insurtech, or underwriting data domains (e.g. bordereaux, claims, or underwriting workflows).
• Awareness of ISO 42001 or experience contributing to an AI governance or management framework aligned with the standard.
• Contributions to open-source AI/ML projects, technical publications, or active participation in the AI engineering community.

What’s on Offer - Life at Send 

Health Insurance - Provided through AXA, covering medical, dental, optical, mental health, and therapies. Employees also have free access to Spill, offering confidential mental health support and therapy.

Life Insurance - Covers four times your basic salary, along with Income Protection for up to 36 months at 75% of salary, including rehabilitation support.

Pension Scheme - A salary sacrifice pension scheme through Royal London. Send contributes 8%, with a minimum employee contribution of 4%.

Time Off - 25 days of annual leave, plus public holidays. We also offer volunteering time and a dedicated wellness day.

Learning and Development - An annual budget via Learnerbly, providing access to books, courses, conferences, and other resources to support your growth.

Check out Send’s public Handbook for more information about our product, recruitment process, team, benefits, and much more.

Lead AI Engineer Interview Process 

Our recruitment process for the Lead AI Engineer role consists of at least four stages: 

Stage 1 - Introductory Call with our in-house recruiter, Lou (30 minutes):
This will cover your background, motivations, and communication skills, along with an opportunity to learn more about Send and the role.

Stage 2 - Interview with Dan Pass, CTO (45 minutes)

Stage 3 - Interview with Alice Butler, Engineer and Phil Huntley, Product Manager (45 minutes).

Stage 4 – Interview with Greg Hall, Head of Engineering and Jason Einon, Head of DevOps

Final Stage - 30-minute Call with a Send Founder

At Send, we’re focused on strengthening our culture-not hiring people who simply “fit” into it. We believe that a diverse, equitable, and inclusive team drives innovation, creativity, better decision-making, and stronger performance.

If you’re interested in a role at Send but don’t meet every requirement listed, we still encourage you to apply. Research shows that women, Indigenous people, and individuals of colour often hesitate to apply for roles unless they meet every single qualification. We’re committed to changing that.

We welcome applications from everyone, regardless of background, ethnicity, or culture. We are committed to reviewing all applications fairly and do not discriminate based on race, ethnicity, colour, religion or belief, national origin, sexual orientation, age, marital or civil partnership status, family status, pregnancy or maternity, disability (visible or invisible), gender identity or expression, or any other legally protected status.

We know that inclusive hiring is an ongoing journey, and we’re always looking to improve. If you have feedback on our hiring or interview process, we’d love to hear it.

If you have specific needs or adjustments that would support you during the application process, you can share them in the space provided in your application-we want to ensure your experience is as smooth and comfortable as possible.

Need support with your application or have a question about the role? Email us at liam.longstaff-pagoni@send.technology.

Senior Software Engineer (Full Stack) 

We are seeking an enthusiastic and ambitious Senior Software Engineer with a keen eye for quality to join our growing Engineering function. You will be joining our Payments squad, responsible for building out our cross-market flexible Payments capability. This is a team which has recently transitioned to being “LLM-first” in their working style, so you would be joining at a critical moment to shape our ways of working and our approaches to LLM-based tooling. 

In this role, you’ll get to:

• Design, implement and deliver software features with full ownership from start to finish.
• Collaborate as part of a close & multi-disciplinary team. Your work will have meaningful and measurable impact on our organisation and products
• Own business-critical components and ensure their stability and maintainability
• Mentor other members of the team to ensure technical excellence and continuously raise the bar when it comes to engineering standards.
• Share your ideas with the team and build products that make an incredibly impactful difference to society and people’s lives

Ophelos Tech is an AI-first technical organisation, and effective use of LLMs are central to how our Engineers work. Claude Code, Codex, and OpenSpec are critical tools in our toolbox. The right person for this role should be excited and motivated to work in this AI-first world.

Stack-wise, we run TypeScript, Python, and Ruby at various levels in our stack – for this role we are really seeking a polyglot Software Engineer for whom specific implementation language is not critical. Elsewhere in our stack, we make use of:

• the FastAPI web application framework.
• PostgreSQL (via PlanetScale) as our application-level data backend
• Databricks as our “data lakehouse”.
• Temporal for workflow automation.
• Claude Code for LLM-first Software Engineering.
• OpenSpec for LLM-powered specification-driven development.
• Datadog for monitoring & observability.
• AWS & Kubernetes as our cloud-based infrastructure platform.
• Ruby & Rails powering our legacy application.
• TigerBeetle to power our financial ledger. 

Ophelos Tech operates hybrid working, and believes face-to-face working time is essential for planning and alignment.

Our teams spend two days each week working in-person from our comfortable office near Liverpool Street in London.

About you

More than anything we are interested in your general experience as a software developer and your approach to solving problems, however, some experience in the following is important for this role:

• You should have at least 5 years of experience in Full Stack Engineering.
• Experience with TypeScript (or Python, Ruby or other similar high-level language).
• You enjoy learning new technologies and are passionate about experimenting to figure out how to build things in a better way.
• Experience and enthusiasm for using the latest LLM tools – Claude Code, Cursor, Codex is critical, as is the intent to continue developing your skills using agentic LLMs as the software engineering landscape continues to develop. 
• Attention to detail, intellectual curiosity & a willingness to embrace the changing technical landscape we find ourselves in.
• An understanding of web programming & familiarity with web frameworks e.g. FastAPI, Ruby on Rails
• You are excited about Ophelos’ mission to support households and businesses to break the vicious debt cycle

Who we are:

At Focused, we move quickly to deliver quality software that achieves client outcomes and meets their customer’s needs. We strategically partner with our clients to leverage our expertise in design and software, while our clients bring their own domain expertise. We work with a variety of clients from different industries, collaborating as we get new products to market, modernizing legacy systems, or helping teams learn the skills they need to be successful.   

Our values:

• Listen first • We are experts in product practices but life long learners in the domain of our customers. We research, collaborate, and understand. 
• Learn why • We ask questions and talk to users to understand problem spaces, objectives, and goals, which allows us to deeply invest and drive towards the outcomes of our clients. 
• Love your craft • We love diving into a variety of domains and solving problems.  We take pride in delivering value, in communicating progress, and guiding our clients to success.

At Focused, our Engineers are both practitioners and experts in their craft. This role would play a crucial role in shaping and implementing engineering best practices and ensuring the successful delivery of complex software projects. With clients, we develop trust and influence - we are unintimidated and unintimidating. With colleagues, we set the standard for how we deliver success for clients.

What would you be doing?

• Writing lots of code
• Lead teams through end-to-end delivery across the stack, from backend services to modern web UIs.
• Pair program daily with teammates and clients to share knowledge, improve code quality, and grow together.
• Practice TDD and continuous refactoring to ensure code is reliable, maintainable, and understandable.
• Guide architecture decisions to support scalability, observability, and performance.
• Collaborate closely with designers, product managers, and stakeholders to continuously deliver valuable software.
• Coach developers on the team through pairing, mentoring, and modeling healthy engineering culture.
• Influence technical direction beyond the team, working across client orgs and Focused’s internal practices to share lessons, shape approaches, and raise the collective bar.
• Stay curious through experimenting with new patterns in the GenAI space, share what works (and what doesn’t), and help evolve how we build AI-powered software.

We are excited about you, because you:

• You’re a hands-on, full stack engineer with a strong track record of delivering software in collaborative, agile environments.
• You believe that code quality matters, and that TDD and pairing help build better systems and stronger teams.
• You’ve worked across multiple languages or frameworks (e.g., Python, Node, Java, React, Next.js) and are pragmatic about tool selection.
• You’re actively leveraging AI workflows and stay focused on delivering value.
• You have experience navigating complex organizations, building bridges across functions, and helping teams adopt modern development practices.
• You’re as comfortable in the code as you are in a client meeting and can translate technical risks and wins into language anyone can understand.
• You love to share what you’re learning and make the team around you better.
• You’ve worked with LangChain (or similar agentic frameworks), and understand how to architect AI-native systems responsibly and effectively.

If you had worked at Focused over the last 3 months you may have:

• Paired with a teammate to build a document Q&A system using LangChain and OpenAI APIs
• Helped design an architecture that integrates LLM agents into a legacy enterprise workflow
• Refactored a flaky test suite to support continuous delivery with confidence
• Built and deployed a full stack GenAI MVP with a React frontend and FastAPI backend
• Facilitated an architecture spike to evaluate vector database options for semantic search
• Contributed a new section to our internal AI playbook
• Helped write this job req

What Sets Exceptional Candidates Apart:

• Experience building AI-enabled applications leveraging LangChain and LLMs to deliver meaningful, production-ready outcomes for clients.
• Deep expertise in LangChain, LangGraph and LangSmith.

What to know before you apply: 

• You will be expected to work for up to four days a week in person, be it from our office in London or from client sites.
• The London base salary range for this role is £80,000 - £108,500 GBP.

Senior Fullstack Engineer (Business Cards)

London Office - Hybrid: 4 days in the office, 1 day working from home

We're looking for a Senior Fullstack Engineer to join our new, rapidly growing Cards team. In this role, you'll work on innovative fintech products, helping to solve customer problems by leveraging data and an entrepreneurial spirit. We're looking for someone who is ever-curious and passionate about continuous learning, who can identify and use the right tools for the job, regardless of language or framework.

What We Offer:

• Competitive salary and benefits package.
• Opportunities for professional growth in a leading European fintech company.
• High ownership and visibility on a critical business initiative.
• A collaborative, open, and dynamic environment.
• The chance to shape how global businesses connect with Ebury.

Responsibilities:

• Lead the design and delivery of complex features for customer-facing web applications.
• Experience in FinTech, banking, or another closely related sector, with a strong understanding of financial systems and building within a regulated environment.
• Drive frontend development using React/VueJS and backend development with Python.
• Collaborate with data engineers to design, build, and optimize robust data pipelines for analytics and machine learning.
• Own the full product lifecycle, including development, maintenance, monitoring, and alerting.
• Mentor junior engineers and champion technical excellence.
• Collaborate cross-functionally to deliver impactful solutions.
• Contribute to the technical roadmap, identifying opportunities for innovation.
• Ensure code is testable with good test coverage.
• Stay up-to-date with emerging technologies.
• This position may require being on-call at times.

About You

• Bachelor's or Master's degree in Computer Science or equivalent experience.
• 5+ years of fullstack development experience, with a focus on high-performance web applications, modern frontend frameworks (React), and microservices architectures.
• Proficiency in Python3, REST APIs, FastAPI, or similar technologies.
• Strong understanding of architecture, design patterns, and building scalable, testable code (unit & integration tests).
• Comfortable with containerization, monitoring, and cloud infrastructure.
• Used to working in a fast-paced environment and a self-starter who can autonomously drive complex projects.
• Excellent communication and collaboration skills in English.

Bonus Points:

• Experience with Machine Learning or Data Science projects (e.g., LLMs).
• Working knowledge of Terraform.
• Experience with event-driven architectures and event sourcing.
• Experience with Mobile Development, ideally in React Native.

#LI-AT1

The Company

We’re Octopus Legacy: one of the fastest-growing tech companies in the country, and part of the UK’s most exciting and best-trusted group. We have a mission.

We’re on a path to scale - aiming to become a household name while transforming a long-established industry and helping individuals and organisations prepare for, and find support after, death.

But we can’t do it alone. That’s why we’re building a team of self-starters, problem-solvers and people who bring energy to everything they do.

Ready to be part of something big?

The Role

We're looking for a Software Engineer skilled in PHP and familiar with Python, ready to make a real impact. You’ll split your time between maintaining and improving our existing PHP/Laravel codebases - powering products like our website, Life Insurance offering, and internal tools - and contributing to newer Python-based projects as our tech stack evolves.

You’ll code across the full stack, shipping real improvements that users notice, keeping our platforms healthy, secure, and performant. You’ll own the backlog of impactful changes that elevate our products and delight users, while also growing into Python projects and expanding your skillset.

This is a role full of variety and opportunity - every week brings new challenges, and your work will directly impact our customers.

Key Responsibilities

• Maintain and improve existing PHP/Laravel applications - bug fixes, enhancements, performance improvements, and application-level security.
• Build and contribute to Python projects - new services, internal tooling, and integrations as our tech stack evolves.
• Support platform security and compliance initiatives - pen testing remediation, dependency updates, and infrastructure hardening.
• Troubleshoot and resolve production issues - investigate bugs, diagnose root causes, and ship fixes confidently.
• Collaborate with the wider engineering team - participate in code reviews, sprint ceremonies, and contribute to engineering standards and best practices.
• Own small-to-medium projects end-to-end, delivering meaningful improvements across our tools and products.

Who Are You?

• Strong experience with PHP, ideally within the Laravel framework.
• Comfortable working with Python - whether in scripting, APIs, data processing, or frameworks like Django or FastAPI.
• Solid understanding of relational databases (PostgreSQL) and writing efficient queries.
• Experienced with version control (Git) and collaborative development workflows.
• Able to work independently, prioritise effectively, and ship reliably.
• Clear communicator who can explain technical decisions to non-technical stakeholder

Bonus points

• Understanding of event-driven architectures and messaging systems.
• Experience with front-end technologies (JavaScript/TypeScript, Vue or React).
• Familiarity with CI/CD pipelines, automated testing, and deployment processes.
• Interest in or experience with AI/LLM integration.

Why You’ll Love It Here

• This role is a stepping stone into Python development, giving you the chance to expand your skills in modern frameworks and integrations, and to apply AI and LLMs for real-world impact.
• You’ll have significant ownership - your work will directly impact our products, customers, and internal operations.
• We’re a growing, collaborative team - you’ll learn from experienced engineers, shape engineering practices, and contribute to the evolution of our tech stack.
• Every day you’ll be building meaningful products that make a difference.

Our Mission

Octopus Legacy is the place to plan for death and find support after loss. When people think about planning for death they think about wills, life insurance and funerals. We take these cold processes and turn them into something more human. Share more than money: leave voice notes, music, recipes. Shape a legacy that connects you while you're here. And after you're gone.

Founded by Sam after his mum died suddenly, we’re a group of people who work in death because we’ve been affected by it. We know the difference a good plan makes, and what it’s like when there isn’t one.

Death can come between us, leaving mess, legal fees, frustration. But it can also make us stronger. We see a world where people talk openly about death, and work out the real meaning of legacy, one that connects to them. We’re here to make that world happen. 

Benefits

• Octopus share incentive scheme
• 27 days holiday + extra day off for your Birthday
• Work from anywhere in the world for up to 4 weeks per year
• Vitality Health & Life Insurance
• Pension scheme
• Enhanced parental leave
• Free Will & LPAs + discounts on other Octopus services
• Cycle to Work Scheme and EV Salary Sacrifice Scheme
• Octopus Giving: matched charitable fundraising up to £500
• Octopus Springboard: support to build your own ideas
• Dog-friendly office
• Breakfast every day, snacks and wellness activities

We know that to be truly innovative, we need to have a diverse team around us. That is why Octopus Legacy is committed to creating an inclusive environment and is proud to be an equal opportunity employer.

Who we are:

At Focused, we move quickly to deliver quality software that achieves client outcomes and meets their customer’s needs. We strategically partner with our clients to leverage our expertise in design and software, while our clients bring their own domain expertise. We work with a variety of clients from different industries, collaborating as we get new products to market, modernizing legacy systems, or helping teams learn the skills they need to be successful.   

Our values:

• Listen first • We are experts in product practices but life long learners in the domain of our customers. We research, collaborate, and understand. 
• Learn why • We ask questions and talk to users to understand problem spaces, objectives, and goals, which allows us to deeply invest and drive towards the outcomes of our clients. 
• Love your craft • We love diving into a variety of domains and solving problems.  We take pride in delivering value, in communicating progress, and guiding our clients to success.

At Focused, our Engineers are both practitioners and experts in their craft. This role would play a crucial role in shaping and implementing engineering best practices and ensuring the successful delivery of complex software projects. With clients, we develop trust and influence - we are unintimidated and unintimidating. With colleagues, we set the standard for how we deliver success for clients.

What would you be doing?

• Writing lots of code
• Lead teams through end-to-end delivery across the stack, from backend services to modern web UIs.
• Pair program daily with teammates and clients to share knowledge, improve code quality, and grow together.
• Practice TDD and continuous refactoring to ensure code is reliable, maintainable, and understandable.
• Guide architecture decisions to support scalability, observability, and performance.
• Collaborate closely with designers, product managers, and stakeholders to continuously deliver valuable software.
• Coach developers on the team through pairing, mentoring, and modeling healthy engineering culture.
• Influence technical direction beyond the team, working across client orgs and Focused’s internal practices to share lessons, shape approaches, and raise the collective bar.
• Stay curious through experimenting with new patterns in the GenAI space, share what works (and what doesn’t), and help evolve how we build AI-powered software.

We are excited about you, because you:

• You’re a hands-on, full stack engineer with a strong track record of delivering software in collaborative, agile environments.
• You believe that code quality matters, and that TDD and pairing help build better systems and stronger teams.
• You’ve worked across multiple languages or frameworks (e.g., Python, Node, Java, React, Next.js) and are pragmatic about tool selection.
• You’re excited about what’s happening in the AI space but stay focused on delivering value.
• You have experience navigating complex organizations, building bridges across functions, and helping teams adopt modern development practices.
• You’re as comfortable in the code as you are in a client meeting and can translate technical risks and wins into language anyone can understand.
• You love to share what you’re learning and make the team around you better.
• You’ve worked with LangChain (or similar agentic frameworks), and understand how to architect AI-native systems responsibly and effectively.

If you had worked at Focused over the last 3 months you may have:

• Paired with a teammate to build a document Q&A system using LangChain and OpenAI APIs
• Helped design an architecture that integrates LLM agents into a legacy enterprise workflow
• Refactored a flaky test suite to support continuous delivery with confidence
• Built and deployed a full stack GenAI MVP with a React frontend and FastAPI backend
• Facilitated an architecture spike to evaluate vector database options for semantic search
• Contributed a new section to our internal AI playbook
• Helped write this job req

What Sets Exceptional Candidates Apart:

• Experience building AI-enabled applications leveraging LangChain and LLMs to deliver meaningful, production-ready outcomes for clients.
• Deep expertise in LangChain, LangGraph and LangSmith.

What to know before you apply: 

• You will be expected to work for up to four days a week in person, be it from our office in London or from client sites.
• The London base salary range for this role is £70,000 - £97,500 GBP.