About the Team

About the Role

What you’ll do

• Design and implement scalable, fault-tolerant backend services for email and in-app notifications
• Build and evolve event-driven, asynchronous pipelines that process high volumes of product and user events
• Create high-quality technical designs and write clean, maintainable, self-documented production code
• Ensure correctness, idempotency, deduplication, and delivery guarantees across notification flows
• Optimize performance, latency, and scalability while maintaining reliability under peak load
• Take long-term ownership of features and subsystems, including production health and evolution
• Collaborate with Product and Platform teams to deliver relevant and timely user notifications

What you’ll need

• 6+ years of backend development experience (Java 17, Kotlin, Spring / Spring Boot)
• At least 4+ years of experience building and operating distributed systems in production environments
• Strong understanding of event-driven architectures, async processing, and message-based systems
• Solid knowledge of high-load SaaS architecture, scalability, and reliability patterns
• Some experience with streaming/messaging platforms, notifications or feed-like systems (email, in-app, push, or similar)
• Familiarity with cloud infrastructure, preferably AWS, and production observability practices

AI-First Proficiency

We embrace AI-first development. Our ideal candidate has moved way beyond basic Copilot usage, and integrated AI agents into their entire SDLC—from autonomous debugging and log analysis to rapid prototyping and shipping features to production. We expect you to be an expert "pilot" who can orchestrate AI tools to deliver high-quality code at a pace that traditional workflows can't match. Practically this means that you are running multi-agent flows using tools like Claude Code, Cursor or similar. If you’ve optimized your workflow to be 10x faster using the latest AI tools, we want to talk to you.

What's in it for you

We want you to feel supported, connected, and ready to grow. Our global benefits package generally includes equity, a wellbeing benefit, a WFH equipment allowance, and an annual Learning & Development stipend. Join a diverse team where you can do your best work. Full benefits may differ per location. If you would like to learn more about location-specific benefits, please refer to our Global Miro benefits board.

Recruiter: #LI-VS1

About The Role

We are seeking a Principal Software Engineer based in London to provide technical leadership across backend services supporting our global payment gateway system. You will design and evolve core platform capabilities, guide architectural decisions across microservices, and mentor engineers while remaining hands‑on with critical systems built using Java and Spring Boot.

This role sits at the heart of Verifone’s global payment gateway platform. You will help shape the technical direction of systems responsible for processing high‑volume, mission‑critical financial transactions worldwide.

At this level, the role goes beyond feature delivery. You will drive architectural decisions, set engineering standards, and influence how teams design, build, and operate secure, scalable backend systems. Success in this role is defined by technical leadership, sound judgment in complex trade‑offs, and ownership of systems that must perform reliably under real‑world load and regulatory constraints.

You will work closely with senior engineering, platform, product, and infrastructure partners to ensure our systems scale globally, remain secure, and meet the highest standards for availability and performance.

Required Skills and Experience Needed

Programming Languages

• Java 17 or higher

Frameworks and Libraries

• Spring Boot
• Spring Web (REST APIs)
• Spring Data
• Spring Security with JWT / OAuth2

Architecture & System Design

• Deep experience designing and operating microservice‑based architectures
• Strong application of clean code practices and SOLID principles
• Ownership of system‑level architecture and cross‑service design decisions
• Strong understanding of security, authentication flows, and data protection in distributed systems

API & Data

• Design and governance of RESTful APIs, JSON, and HTTP standards
• API versioning and backward‑compatibility strategies
• MongoDB / NoSQL expertise, including:
  • Data modeling
  • Indexing strategies
  • Performance optimization
• Advanced experience with Java concurrency, streams, and performance tuning

Cloud & Infrastructure

• AWS services including EC2, ECS/EKS, S3, RDS and/or DynamoDB, and CloudWatch
• Docker and containerized deployments
• CI/CD pipelines and Git‑based workflows
• Experience designing systems for scalability, resilience, and operability

Testing & Engineering Practices

• Strong unit and integration testing practices using JUnit and Mockito
• Ownership of quality standards, testability, and CI discipline
• Experience working in Agile / Scrum environments and influencing engineering best practices

Experience Level

• Principal‑level backend engineering experience building and operating large‑scale, high‑performance systems
• Approximately 8+ years of backend development experience, with several years working on production Java and Spring Boot services
• Proven experience owning architecture and technical direction for critical backend platforms
• Extensive production experience with MongoDB, including modeling, indexing, and performance optimization

Bonus Skills and Experience

Payments & Domain Expertise

• Background in fintech or payments
• Experience with payment processing, transactions, and financial data
• Strong understanding of high‑availability, security, and data‑consistency trade‑offs

Eventing & Distributed Systems

• Experience with event‑driven architectures
• Messaging or streaming technologies such as:
  • Kafka
  • AWS SQS
  • Similar eventing systems

Platform & Technical Leadership

• Deep experience with AWS, Docker, and CI/CD practices
• Proven ability to mentor engineers and raise the technical bar across teams
• Strong sense of ownership for systems running in production

Our Commitment

Verifone is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. Verifone is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

Why Verifone

For more than 40 years Verifone has established a remarkable record of leadership in the electronic payment technology industry. Verifone has one of the leading electronic payment solutions brands and is one of the largest providers of electronic payment systems worldwide.

Verifone has a diverse, dynamic and fast paced work environment in which employees are focused on results and have opportunities to excel. We take pride in the fact that we work with leading retailers, merchants, banks, and third party partners to invent and deliver innovative payments solution around the world. We strive for excellence in our products and services, and are obsessed with customer happiness. Across the globe, Verifone employees are leading the payments industry through experience, innovation, and an ambitious spirit. Whether it’s developing the next platform of secure payment systems or searching for new ways to bring electronic payments to new markets, the team at Verifone is dedicated to the success of our customers, partners and investors. It is this passion for innovation that drives each one of our employees for personal and professional success.

Verifone is proudly an in-office work culture as we see immense benefits to career development and business results from our colleagues being physically co-located.

About The Role

We are seeking a Senior Developer based in London to design, build, and operate backend services for our global payment gateway system. You will develop high‑performance, secure microservices using Java and Spring Boot, collaborate closely with platform, product, and infrastructure teams, and help ensure our systems scale reliably across regions and partners.

This role is part of Verifone’s global payment gateway platform, where engineering decisions directly impact the reliability, security, and performance of high‑volume financial transactions worldwide. You will work on backend services that sit at the core of payment processing, balancing scalability, data consistency, and security in a highly regulated environment.

The role is ideal for a senior backend developer who enjoys working on complex distributed systems, modern Java platforms, and cloud‑native architectures, and who takes ownership of systems that must perform reliably under real‑world load.

Required Skills and Experience Needed

Programming Languages

• Java 17 or higher

Frameworks and Libraries

• Spring Boot
• Spring Web (REST APIs)
• Spring Data
• Spring Security with JWT / OAuth2

Architecture & System Design

• Microservice‑based architectures
• Clean code practices and SOLID principles
• Experience designing scalable, fault‑tolerant backend services
• Strong understanding of security, authentication flows, and data protection

API & Data

• RESTful API design using JSON and HTTP standards
• API versioning strategies
• MongoDB / NoSQL experience, including:
  • Data modeling
  • Indexing strategies
  • Performance tuning
• Experience with Java concurrency, streams, and performance optimization

Cloud & Infrastructure

• AWS services including EC2, ECS/EKS, S3, RDS and/or DynamoDB, and CloudWatch
• Docker and containerized deployments
• CI/CD pipelines and Git‑based workflows

Testing & Engineering Practices

• Unit and integration testing using JUnit and Mockito
• Strong focus on testability, quality, and maintainability
• Experience working in Agile / Scrum environments

Bonus Skills and Experience

Payments & Domain Experience

• Background in fintech or payments
• Experience handling transactions, payment flows, and financial data
• Understanding of high‑availability, security, and data consistency trade‑offs

Eventing & Distributed Systems

• Exposure to event‑driven architectures
• Messaging or streaming technologies such as:
  • Kafka
  • AWS SQS
  • Similar eventing systems

Platform & Operations

• Advanced experience with AWS, Docker, and CI/CD practices
• Production experience operating distributed systems at scale
• Strong ownership mindset for services running in production

Our Commitment

Verifone is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. Verifone is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

Senior Backend Engineer – Java
Location: London (Hybrid) | Practice Area: Technology & Engineering | Type: Permanent

Power the platforms behind modern finance. Shape cloud-native solutions with Java at their core.

The Role
We’re seeking a Senior Backend Engineer (Java) to join our Technology & Engineering team. You’ll bring expertise in building robust, scalable, cloud-native applications using Java, Spring Boot, and AWS. Working on high-impact platforms for Tier 1 financial institutions, you’ll lead backend design, champion agile best practices, and contribute to the evolution of modern banking technology.

What You’ll Do

• Design and build microservices-based applications using Java 11+ and Spring Boot

• Deliver enterprise-ready cloud solutions, with a focus on AWS infrastructure and services

• Build and manage robust CI/CD pipelines and ensure secure, scalable deployments

• Write comprehensive tests and implement quality-driven development across the stack

• Collaborate in agile teams and contribute to design decisions, troubleshooting, and continuous improvement

What We’re Looking For

• Expert-level Java development (Java 11, 17, 21+), Spring Boot proficiency

• Deep knowledge of public cloud environments, preferably AWS

• Experience designing cloud-native, microservices, and event-driven architectures

• Strong grasp of CI/CD pipelines, SQL/NoSQL databases, Kafka, and Java Streaming

• Familiarity with infrastructure-as-code (e.g., CloudFormation), distributed systems, and secure design practices

Bonus Points For

• Experience using GitLab for CI/CD pipelines and Cucumber for BDD test automation

• AWS Certified Solutions Architect (Associate or Professional)

• Knowledge of CQRS patterns and performance testing strategies

• Passion for exploring emerging cloud technologies and frameworks

• Experience delivering customer-facing or business-critical applications in finance

Why Join Capco

• Deliver high-impact technology solutions for Tier 1 financial institutions

• Work in a collaborative, flat, and entrepreneurial consulting culture

• Access continuous learning, training, and industry certifications

• Be part of a team shaping the future of digital financial services

• Help shape the future of digital transformation across FS & Energy.

Benefits

We offer a competitive, people-first benefits package designed to support every aspect of your life:

• Core Benefits: Discretionary bonus, competitive pension, health insurance, life insurance and critical illness cover. 

• Mental Health: Easy access to CareFirst, Unmind, Aviva consultations, and in-house first aiders. 

• Family-Friendly: Maternity, adoption, shared parental leave, plus paid leave for sickness, pregnancy loss, fertility treatment, menopause, and bereavement. 

• Family Care: 8 complimentary backup care sessions for emergency childcare or elder care. 

• Holiday Flexibility: 5 weeks of annual leave with the option to buy or sell holiday days based on your needs. 

• Continuous Learning:  Your growth, your way - minimum 40 hours of training annually. Take your pick; workshops, certifications, e-learning. Also, Business Coach assigned from Day One: Get one-on-one guidance to fast-track your goals and accelerate your development. 

• Healthcare Access: Convenient online GP services. 
• Extra Perks: Gympass(Wellhub), travel insurance, Tastecard, season ticket loans, Cycle to Work, and dental insurance.

Inclusion at Capco
We’re committed to making our recruitment process accessible and straightforward for everyone. If you need any adjustments at any stage, just let us know – we’ll be happy to help. We value each person’s unique perspective and contribution. At Capco, we believe that being yourself is your greatest strength. Our #BeYourselfAtWork culture encourages individuality and collaboration – a mindset that shapes how we work with clients and each other every day.

#LI-DNI

Team: Technology

Location: This is a hybrid role based out of our London office in Monument, with an expectation to be in the office 2 days per week.

Salary Range: £80,000 - £90,000 per annum

Role Type: Full-Time, Permanent 

Start date: As soon as possible 

Visa / Sponsorship Available: Not Available 

The Senior Java Engineer Role  

As a Senior Java Engineer at Send, you’ll play a crucial role in building and evolving our Insurance platform. This is an exciting opportunity to work with modern technologies within a microservices architecture, developing new platform features, enhancing existing functionality, and ensuring the scalability and reliability of our backend systems. You’ll be part of a collaborative, agile team, contributing to key technical decisions and mentoring others along the way.

If you’re an experienced Java Engineer ready to take on your next challenge and thrive in a dynamic, fast-paced environment, we’d love to hear from you.

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 Senior Java Engineer 

• Designing, developing, and maintaining backend services in Java.

• Building scalable and performant microservices using Spring Boot and other modern frameworks.

• Working with relational databases, particularly MySQL, to store and manage structured data.

• Collaborating closely with frontend engineers, product managers, and other stakeholders to deliver high-quality features.

• Writing and maintaining unit and integration tests using JUnit, Spock, or Cucumber.

• Providing technical leadership and mentoring to junior and mid-level engineers.

• Troubleshooting and debugging issues to ensure the stability and reliability of our platform.

• Improving CI/CD pipelines and supporting deployment automation.

• Contributing to architectural discussions and decisions to enhance the platform’s scalability and performance.

The Skills and Experience Needed for the Senior Java Engineer Role 

•    Strong experience in Java development, particularly in backend web applications.
•    Proficiency with Spring Boot, REST APIs, JPA, and Hibernate.
•    Experience working with relational databases (MySQL preferred).
•    Knowledge of microservices architecture and best practices.
•    Solid understanding of software development best practices, including unit testing and code quality.
•    A proactive, problem-solving mindset and a pragmatic approach to development.
•    Strong collaboration and communication skills.
•    Ability to work independently while contributing to a team-oriented environment.

Bonus Points

•    Experience with AWS and cloud-based infrastructure.
  •    Exposure to Apache Camel.
  •    Familiarity with Docker, Kubernetes, and DevOps tools.
  •    Prior experience in the insurance industry or with insurance-related software.

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.

 
Senior Java Engineer Interview Process 

Our recruitment process for the Senior Java 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 - Technical Interview with two members of the engineering team (45 minutes):
This will focus on technical questions related to Java, web application development, Spring Boot, microservices, and relational databases.

Stage 3 - Interview with Greg Hall, Head of Engineering, and another member of our engineering team (30 minutes).

Stage 4 – Interview with Dan Pass, CTO (30 minutes)

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.

Principal Backend Engineer - Java

Location: London (Hybrid) | Type: Permanent

The Role

Capco is growing our Engineering team – and we’re looking for experienced Principal Backend Engineers with strong Java skills and a passion for delivering innovative solutions in financial services. If you enjoy solving complex problems, working with cloud-native technologies, and collaborating in agile teams, we’d love to hear from you.

As a Principal Backend Engineer at Capco, you’ll contribute to high-impact, client-facing projects that shape the future of financial services. You’ll work alongside talented engineers, have access to industry-leading training, and get the opportunity to grow your skills across multiple platforms. You will also get the chance to work across different domains within FS & Energy.

What You’ll Do

• Build and deliver scalable backend services using Java (11, 17+)
• Design and implement APIs and microservices for enterprise systems
• Work across cloud platforms, particularly AWS, using best practice deployment techniques
• Contribute to architecture discussions and solution design
• Develop robust test coverage including unit, integration, and performance testing
• Collaborate in agile teams alongside clients, product managers, and other engineers

What We’re Looking For

• Java Development - Expertise in Java 11, 17 and above.
• Spring Boot - Proficiency with the Spring Boot framework.
• Cloud Services - Deep understanding of deploying enterprise level software into any public cloud, preferably AWS.
• Architecture Patterns - Experience implementing microservices, event-driven, CQRS and cloud-native architectures.
• CI/CD - Strong understanding of CI/CD pipelines, particularly within the AWS ecosystem.
• Database Management - Proficiency in both SQL and NoSQL databases.
• Message Brokers - Experience with Kafka.
• Testing - Ability to write various types of tests including unit, component, integration, end-to-end, and performance tests.
• Java Streaming - Core understanding of Java streaming and AWS integration.
• Infrastructure as Code - Experience with CloudFormation or similar tools for infrastructure management.
• Large-Scale Systems Design - Experience with designing large-scale systems.
• Distributed Systems Troubleshooting - Ability to troubleshoot distributed systems.

Bonus Points For

• An appetite to contribute to the wider Capco business outside of project assignments. This can be achieved through various means including thought leadership activities, supporting RFP's and the coaching/mentoring of more junior engineering team members
• Proficiency with Gitlab for CI/CD processes.
• Behaviour Driven Design - Experience writing automation test cases in Cucumber using Behaviour Driven Design (BDD).
• AWS Certified Solutions Architect - Associate or Professional level certification required.
• Security Best Practices - Strong knowledge of security best practices, including the use of IAM Roles, KMS, etc.

Why Join Capco

You’ll be part of a team where your voice matters. We’re collaborative, non-hierarchical, and laser-focused on creating impact – for our clients and for you. At Capco, you’ll shape your career around your strengths, enjoy flexibility and trust, and work with people who genuinely care about your growth and wellbeing.

We offer a competitive, people-first benefits package designed to support every aspect of your life:

• Core Benefits: Discretionary bonus, competitive pension, health insurance, life insurance and critical illness cover.
• Mental Health: Easy access to CareFirst, Unmind, Aviva consultations, and in-house first aiders.
• Family-Friendly: Maternity, adoption, shared parental leave, plus paid leave for sickness, pregnancy loss, fertility treatment, menopause, and bereavement.
• Family Care: 8 complimentary backup care sessions for emergency childcare or elder care.
• Holiday Flexibility: 5 weeks of annual leave with the option to buy or sell holiday days based on your needs.
• Continuous Learning:  Minimum 40 Hours of Training Annually: Take your pick—workshops, certifications, e-learning—your growth, your way. Also, Business Coach assigned from Day One: Get one-on-one guidance to fast-track your goals and accelerate your development.
• Healthcare Access: Convenient online GP services.
• Extra Perks: Gympass (Wellhub), travel insurance, Tastecard, season ticket loans, Cycle to Work, and dental insurance.

Inclusion at Capco

We’re committed to a barrier-free, inclusive recruitment process. If you need any adjustments at any stage, just let us know – we’ll be happy to help. We welcome applicants from all backgrounds. At Capco, we value the difference you make, and the differences that make you. Our #BeYourselfAtWork culture champions diversity, equity and inclusivity, and we bring a collaborative mindset to our partnerships with clients and colleagues. #BeYourselfAtWork is the cornerstone of our success and a value that our employees live and breathe every day.