Location: UK, Portugal, Remote

Department: Engineering

Employment Type: Permanent

About YLD:

Our goal is to help our clients keep moving forward. We work with them to build the skills and capabilities they need to stay ahead of the competition, and we know our success only happens when they succeed. We’re a team of curious, talented people, and we’re committed to making YLD a place where great people want to work, grow, and stay.

We’re a remote-first consultancy specialising in software engineering, product design, and data. Our teams are based across London, Lisbon, and Porto, and we create digital solutions that continue to deliver value long after our work is done.

About the role:

As a Senior Software Engineer at YLD, you’ll be part of a client team building innovative products. We’re looking for someone curious, passionate, driven, and enthusiastic. You should be skilled in problem-solving and experienced in designing scalable, resilient, and fault-tolerant architectures. You’re also an effective communicator and a strong team player. Together with your team, you’ll thrive in a fast-paced engineering environment, delivering outstanding results and exciting projects.

Preferred Skills:

• Strong backend engineering experience, with Go as a primary or preferred language;
• Comfortable working in cloud environments such as AWS, Azure, or Google Cloud;
• Experience building and maintaining APIs and backend services, including SaaS platforms;
• Familiarity with modern infrastructure and distributed systems;
• Solid understanding of modern deployment practices, including Docker, containers, and Kubernetes;
• Strong background in testing strategies, including TDD, across the full system lifecycle, with a focus on performance optimization;
• Use AI tools to augment your work, applying sound judgement to adopt emerging technologies where they genuinely add value and increase your impact as an engineer.

You should apply if you are:

• Self-motivated, proactive and always looking for ways to improve and develop yourself;
• A good communicator, both in writing and verbally. You’ll be able to explain technical ideas and concepts in business-friendly language;
• Detail-oriented;
• Possess strong problem-solving skills that balance innovation with pragmatic technology choices to solve business needs;
• Used to working in a team-oriented, collaborative environment;
• Analytical and problem-solving-oriented;
• A genuine believer in diversity and fairness.

Benefits you’ll receive:

• Company Private Health care
• Enhanced fully paid maternity and paternity leave for up to 6 months
• Enhanced pension scheme (only for UK)
• 25 days annual holiday (excluding Public Holidays)
• £/€2000 annual learning and development budget for training courses and conferences
• £/€300 annual allowance for additional hardware
• Wellbeing & Performance Support via Oli including Therapy and Coaching
• Discretionary Bonus (depending on Company performance and results)
• Generous referral schemes

Our typical recruitment process:

• 1st Interview with a Talent Partner (30/45 mins)
• Technical Interview with our Senior Developers (1h30)

Get a glimpse of what it's like working at YLD! 🤳

Check out our LinkedIn page

We live and breathe our values, and know you will too:

• Growing every day
• Including everyone
• Relationships built on honesty and ethics
• Inspiring solutions
• Winning together

We’re an equal-opportunity employer and value diversity in all its forms. We do not discriminate based on race, religion, colour, national origin, gender, sexual orientation, pregnancy or maternity, age, marital status, or disability. We also offer a remote-first working environment, with flexible working and work–life balance as standard for all employees.

Location: UK or Portugal

Department: Engineering

Employment Type: Permanent

About YLD:

Our goal is to help our clients keep moving forward. We work with them to build the skills and capabilities they need to stay ahead of the competition, and we know our success only happens when they succeed. We’re a team of curious, talented people, and we’re committed to making YLD a place where great people want to work, grow, and stay. We’re a remote-first consultancy specialising in software engineering, product design, and data. Our teams are based across London, Lisbon, and Porto, and we create digital solutions that continue to deliver value long after our work is done.

About the role:

As a Senior Data Engineer, you’ll be part of a client team building innovative products. We expect you to be curious, passionate, driven, and enthusiastic. You’ll be proficient at problem-solving, and crafting scalable, resilient, and fault-tolerant architectures. You’ll be an effective communicator and a team player. You and your team will move in a fast-paced engineering environment, achieving outstanding results and delivering exciting projects.

About you:

A YLD Senior Data Engineer is a highly skilled engineer who spans across data engineering and analytics engineering, and knows where the boundaries sit. You've built pipelines and transformation layers. You've inherited messy data projects and made them good. You have opinions about how data teams should work and the humility to adapt them to context.

You have a real passion for the craft and are an active learner who gets excited by the variety that consultancy brings: different clients, different stacks, different problems.

Your day-to-day responsibilities will look like this:

• Delivering data work on client engagements: pipelines, transformation layers, models, and the infrastructure around them
• Adapting to different client contexts, legacy warehouse migrations, greenfield lakehouses, struggling transformation layers that need rescuing
• Defining and evolving our internal standards for data work: testing, documentation, project structure, code review
• Mentoring and growing data engineers across the company
• Showing up for client team moments (internal speakers, learning sessions, social events) to build strong working relationships.
• Contributing to proposals and helping shape engagements during the sales process
• Representing YLD externally through writing, speaking, and contributing to the wider data community.

You’ll have the following skills and experience:

• SQL as engineering: You write SQL that's reviewable, testable, and performs at scale. You understand query planning, engine quirks, and how materialisation choices affect cost and performance
• Python for data: You write typed, testable Python for pipelines and tooling. You've built and maintained production data systems, not just notebooks
• Data modelling: You've made deliberate choices between dimensional, Data Vault, normalised, and denormalised designs. You can explain those trade-offs in terms of flexibility, query performance, and maintainability
• Transformation architecture: You design transformations that are idempotent, incremental, and dependency-aware. You think in DAGs, not scripts
• Pipeline design: You understand batch, streaming, and micro-batch trade-offs. You consider latency, complexity, cost, and reprocessability. And choose the right approach for the problem
• Data testing: You write tests as code, schema contracts, assertions, and transformation logic. You know what to catch at build time vs. defer to observability
• Data observability: You treat data reliability like site reliability. Measurable indicators, alerting, incident response, and root cause analysis
• CI/CD for data: You version, test, and deploy pipelines like software. Environment promotion, rollback strategies, and infrastructure as code for reproducible environments
• Data governance: You've implemented lineage, cataloguing, sensitive data classification, or access control. Not just built pipelines, but made them auditable and secure
• Cost-conscious: You've optimised warehouse spend, storage strategies, or job efficiency. You treat compute as a resource to manage, not ignore
• Platform fluency: You've worked across the modern stack. Orchestration (Airflow, Dagster), warehouses (Snowflake, BigQuery, Databricks), ingestion (Fivetran, Airbyte, custom), and transformation (dbt, Spark)
• Cross-functional fluency: You translate engineering constraints into business terms and negotiate realistic commitments

You’ll be:

• Self-motivated and proactive
• Comfortable with ambiguity, experimentation, and iteration
• Collaborative by default. You work well in teams and across teams
• Analytical and detail-oriented in your approach to problems
• Comfortable context-switching across clients, stacks, and problem types
• Willing to shape engagements, not just deliver them: contributing to proposals, scoping, and client relationships
• Active in the wider data community: writing, speaking, or open-source contribution
• Genuinely committed to diversity, equity, and inclusion

Benefits you'll get:

• Company Private Health care
• Enhanced fully paid maternity and paternity leave for up to 6 months
• Company’s Pension Scheme (UK Only)
• 25 days annual holiday (excluding Public Holidays)
• £2000/€2000 annual allowance for Training/Conferences
• £300/€300 annual allowance for additional hardware
• Wellbeing & Performance Support via Oli including Therapy and Coaching
• Discretionary Bonus (depending on Company performance and results)
• Company laptop
• Generous referral schemes

Our typical Recruitment Process looks like this:

• 1st Interview with someone from the Talent team (30-45 Minutes)
• Technical Interview with our Senior Developers (90 Minutes)
• Call with the Head of Engineering (60 Minutes)

Get a glimpse of what it's like working at YLD! 🤳

Check out our LinkedIn page

We live and breathe our values, and know you will too:

• Growing every day
• Including everyone
• Relationships built on honesty and ethics
• Inspiring solutions
• Winning together

We’re an equal-opportunity employer and value diversity in all its forms. We do not discriminate based on race, religion, colour, national origin, gender, sexual orientation, pregnancy or maternity, age, marital status, or disability. We also offer a remote-first working environment, with flexible working and work–life balance as standard for all employees.

Location: Portugal

Department: Engineering

Employment: Full time

About YLD:

Everything we do is to empower our clients to move forward. Our purpose is to help our clients develop the capabilities they need to outperform their competitors. Our success is a consequence of ensuring our clients are successful. Our company is built on extraordinary people; we aim to attract, inspire, develop and retain them. YLD is a software engineering and design consultancy; we create digital capabilities for our clients that last beyond our engagement. We have offices in London, Lisbon, Porto.

About the role:

As a Software Engineer, you’ll be part of a client team building innovative products. We expect you to be curious, passionate, driven, and enthusiastic. You’ll be proficient at problem-solving, and crafting scalable, resilient, and fault-tolerant architectures. You’ll be an effective communicator and a team player. You and your team will move in a fast-paced engineering environment, achieving outstanding results and delivering exciting projects.

About you:

A YLD Software Engineering Consultant is a highly skilled developer who exemplifies the highest standard in software engineering and enjoys sharing their knowledge and experience with others.

You’ll have the opportunity to build and deliver software within some interesting projects in terms of the product and methodology. We work in an Agile environment (Scrum) with a test-first mindset (actually, writing code without tests should be unthinkable). We are also big advocates of pair programming and nothing is released until we have a code review.

You have a real passion for problem-solving and are an active learner who gets excited by working collaboratively with those around you.

Your day-to-day responsibilities will look like this:

• Crafting excellent products! As an AI Engineer, you will be building new AI-powered features that meet the needs of our clients' customers, as well as improving their Digital Platform with intelligent capabilities;
• Continuously delivering changes to products including AI model integrations, prompt optimisations, and system improvements, as we push for a full CI/CD model;
• Working closely with your team, regularly collaborating on both traditional engineering and AI initiatives, to continually push yourselves to build better, smarter systems;
• Participating in regular show and tells to promote your work — from AI experiments to production deployments — to both your department and the wider company;
• Joining our clients’ internal events, including meeting external speakers, going to quiz nights, etc.

You’ll have the following skills and experience:

Core Programming & AI

• Proven strong experience with JavaScript, TypeScript, and Python
• Advanced GenAI/LLM expertise: RAG, embeddings, vector search, prompt engineering, evals, guardrails, caching, chaining, function calling, etc
• Fine-tuning expertise: LoRA/QLoRA, instruction tuning, RLHF, domain adaptation, and custom model training
• Agentic architecture design: multi-agent systems, tool orchestration, planning/reasoning frameworks, memory systems, and agent coordination patterns
• Eval systems: automated evals, human feedback loops, benchmarking, A/B testing, safety testing, hallucination detection, and performance metrics
• Experience with LLM frameworks (LangChain, LlamaIndex, LiteLLM, CrewAI, Mastra, etc) and API integrations (OpenAI, Anthropic, etc.)

Infrastructure & DevOps

• CI/CD pipelines and IaC tools (Terraform, CloudFormation, CDK)
• Cloud platforms (AWS, Azure, GCP) for GenAI workloads and API management
• Containerisation and orchestration (Docker, Kubernetes) for AI applications
• LLM hosting and inference optimisation (vLLM, TGI, local deployment)

Data & Databases

• Vector databases (Pinecone, Weaviate, Chroma, Qdrant) and traditional databases (PostgreSQL, Neo4j)
• Data pipeline design for RAG and knowledge ingestion
• Real-time data streaming and processing
• Document processing and embedding generation workflows

Frontend & APIs

• React or modern UI frameworks
• API design for LLM services and conversational interfaces
• Multiple protocols (HTTP, GraphQL, gRPC, WebSockets, MCP)
• Real-time chat and streaming response handling

Performance & Reliability

• Building high-performance, scalable AI applications
• LLM cost optimisation, token management, and caching strategies
• Performance monitoring, observability, and debugging production AI systems
• Comprehensive testing: unit, integration, AI behaviour, security, accessibility

You’ll be:

• Self-motivated, proactive and always looking for ways to improve and develop yourself;
• A good communicator, both in writing and verbally. You’ll be able to explain technical ideas and concepts in business-friendly language;
• Detail oriented;
• Used to working in a team-oriented, collaborative environment;
• Comfortable with experimentation, iteration, and managing uncertainty in AI systems;
• Analytical and problem-solving oriented;
• Ethical thinker who considers the broader implications of AI implementations;
• A genuine believer in diversity and fairness.

As well as the chance to work with a forward-thinking, ethical, and fun group of people, you’ll also get:

• Company Private Health care
• Enhanced fully paid maternity and paternity leave for up to 6 months
• 25 days annual holiday (excluding Public Holidays)
• €2000 annual allowance for Training/Conferences
• €300 annual allowance for additional hardware
• Wellbeing & Performance Support via Oli including Therapy and Coaching
• Discretionary Bonus (depending on Company performance and results)
• Company laptop
• Generous referral schemes

Our typical Recruitment Process looks like this:

• 1st Interview with someone from the Talent team (30/45 mins)
• Technical Interview with our Senior Developers (1h30)

We live and breathe our values, and know you will too:

• Growing every day
• Including everyone
• Relationships built on honesty and ethics
• Inspiring solutions
• Winning together

We’re an equal-opportunity employer and value diversity of all kinds. We don’t discriminate based on race, religion, colour, national origin, gender, sexual orientation, pregnancy or maternity, age, marital status, or disability status. We also offer a remote-first working environment, meaning that flexible working and work-life balance come as standard for all employees.

The Security Team keeps Feedzai products and systems secure. We work on risk reduction and security issue mitigation as we continue to move forward and grow. We maintain compliance and security best practices aligned with industry standards, as we work in a very regulated environment and do develop our own software and services. The Security Team is involved from the beginning of production to meet and exceed our client expectations and be the top SME in the industry. We run our own Security Operations Center services and incident response with state of the art tools. We are dynamic, tenacious, and driven by our passion for fighting financial fraud and crime with our socially responsible products. Join Us!

You

You’ll be working with a team that's responsible for the security across all ongoing initiatives, products, processes and applications at Feedzai. This will be a very senior role within this team, someone able to work across teams and coach other more junior team members also.

Your day–to–day

• Design and architect robust security controls with 'secure by default' principles, ensuring long-term maintainability and systemic incident resilience across the organization;
• Review technical designs to identify security weaknesses and provide assistance on how to address them;
• Provide subject matter expertise on security across ongoing initiatives to the organization;
• Lead the technical execution of multi-team security initiatives, influencing cross-team priorities and aligning technical roadmaps with direct business impact;
• Work closely with other functional areas and/or departments in the identification of requirements and designing of solutions;
• Produce high-quality narratives and investment cases supported by facts and data, translating complex security challenges into comprehensive business language for company-wide stakeholders;
• Perform internal and external penetration tests, ensuring timeliness and accuracy of reports;
• Assist in the support of compliance with core applicable standards and regulations (PCI DSS, ISO/IEC 27001, SOC 2, NIST, CIS, GDPR) and participate in the audit processes.

Your Have & You Know-How

• Willingness to learn and to stay up-to-date with the state of the art;
• Break things attitude, so that we can improve (hacker-type of attitude);
• Expert knowledge across web, application, hardware & network security;
• Solid understanding of encryption, key management & distribution;
• Extensive knowledge and experience with cloud service providers such as AWS, Azure, or GCP;
• Extensive knowledge with Kubernetes security;
• Knowledge of PCI DSS, ISO/IEC 27001, NIST, CIS, and GDPR standards and regulations preferred;
• Strong business and financial acumen, with the ability to understand the economic implications (cost efficiency, operational burden, time-to-value) of security engineering decisions;
• 4+ years of relevant professional experience;
• Demonstrated experience developing, deploying, and monitoring secure systems;
• Demonstrated experience implementing AI-driven approaches to optimize security workflows and leading the adoption of new AI technologies;
• Global experience in leading and supporting cross-functional projects, interacting effectively with all levels of the company;
• Track record of managing projects with quality, detail, and consistency;
• Background in engineering with a deep passion for making all things secure;
• Excellent communication skills (written and verbal) with an ability to articulate complex topics in a clear and concise manner.

 #LI-Remote #LI-MG3

Why we're hiring:

At WPP, technology is at the heart of everything we do, and it is the Technology Operations teams mission, as part of Enterprise Technology, to enable our stakeholders to collaborate, create and thrive. Enterprise Technology is undergoing a significant transformation to modernise ways of working, shift to cloud and micro-service-based architectures, drive automation, digitise colleague and client experiences and deliver insight from WPP’s petabytes of data.  

As we continue on this transformation journey….  This role will carry out the effective and efficient everyday technology operations for WPP ET.  A trusted pair of hands to deal with level 1 and 2 issues as they present to the IT Service Desk and a trusted resource for Infrastructure and Management personnel to assist with project work when needed. The role will report into the Enterprise Technology Operations Lead and work closely with other teams within Enterprise Technology

What you'll be doing:

• Deliver world class, on-site support services to WPP employees, agencies, and visiting clients, operating within predefined structure, methodologies, and standards set by WPP ET 
• This is a 100% onsite role
• Provide on-site support to the WPP agencies located in Lisbon
• Provide onsite support for additional locations which may require travel (where applicable)
• Provide remote support, as needed, to WPP agencies across the wider region
• Ensure IT deskside operations and all standard technology services, including meeting room AV, are delivered and supported as needed
• Develop excellent relationships with the business user base
• Lead a customer-centred culture, championing activities to empower end users to get maximum utilization out of their technology tools
• Educate the business on how to use the Enterprise Technology service and maximise benefits
• Log all IT engagements into a ticketing system to ensure IT demand and performance data can be reported upon
• Onboarding and offboarding of new and departing employees, including user account administration and asset management
• Level 1 and 2 incident and problem management, including diagnosis, liaison with appropriate internal and external resources to drive resolution, and ticket management throughout the resolution process
• Ensure security procedures are followed, and 3rd parties are monitored during service engagements
• Escalation of issues to Infrastructure and/or Management teams as required
• Manage and support simple user and office relocations
• Understanding of unique line-of-business technologies
• Compiling, documenting, and maintaining Service Desk knowledge base and standard procedures 
• Deployment of hardware and software to end users
• Management and installation/removal of break/fix or warranty replacement of IT related equipment
• IT asset procurement, inventory and Life cycle management
• Work with all the IT functions within the Enterprise Technology operating model to ensure the needs of the business are fulfilled
• Support WPP Global in promoting global standards and ensuring local implementation
• Support other IT teams with IT changes and ensure support priorities are localised and executed to plan
• Escalation management and work with third-party suppliers to ensure operational services meet business requirements
• Perform basic device troubleshooting including resetting devices, cable management, providing console access for 3rd level teams/partners as part of Incident break fix or scheduled changes
• Perform/be accountable for infra testing pre/post deployment of changes through either Incidents or Projects; liaise with local application owners for additional testing
• Facilitate and support refresh of local infrastructure (network and server)
• Support the review of local licencing demand for software assets
• Availability where necessary for out-of-hours support 

What you'll need:

• 3 – 5 years in an IT help desk / desk side support role
• Strong cross-platform experience in Windows and Mac, along with working knowledge of AV technology
• Excellent problem-solving skills
• Can-do attitude
• Someone that can empathize and communicate effectively with end users
• Builds excellent relationships, based on trust and mutual respect
• Excellent written and verbal communication skills  in English and Portuguese
• Able to manage time effectively and set priorities appropriately
• Able to maintain professional demeanor under stress while remaining friendly and approachable to ensure a positive user experience

Who you are:

You're open: We are inclusive and collaborative; we encourage the free exchange of ideas; we respect and celebrate diverse views. We are open-minded: to new ideas, new partnerships, new ways of working.

You're optimistic: We believe in the power of creativity, technology and talent to create brighter futures or our people, our clients and our communities. We approach all that we do with conviction: to try the new and to seek the unexpected.

You're extraordinary: we are stronger together: through collaboration we achieve the amazing. We are creative leaders and pioneers of our industry; we provide extraordinary every day.

What we'll give you:

Passionate, inspired people – We aim to create a culture in which people can do extraordinary work.

Scale and opportunity – We offer the opportunity to create, influence and complete projects at a scale that is unparalleled in the industry.

Challenging and stimulating work – Unique work and the opportunity to join a group of creative problem solvers. Are you up for the challenge?

#LI-Hybrid