Bourne Search Ltd
Senior Java Software Engineer
Get notified of more jobs like this · No spam, ever
How your CV stacks up
Upload your CV to see how well it fits this job role
?%
Senior Java Engineers — Build a New Platform from the Ground Up
Location: London, United Kingdom — hybrid, 3 days per week in the office
Employment type: Full-time
Openings: Two
The Opportunity
Join a leading Exchange in a newly established Sustainability & Physical Markets (SPM) engineering team at the beginning of a major transformation.
Over the next three years, we’ll modernise a legacy.NET estate, migrate core capabilities to Java and break an established monolith into scalable microservices. You’ll have the opportunity to shape the architecture, influence technical decisions and take genuine ownership—without being constrained by a platform whose direction has already been decided.
This is a hands-on AVP-level position within a small, focused team, ideal for an experienced engineer who enjoys solving complex modernisation challenges and building technology designed to last.
Two Roles, One Ambitious Roadmap
We’re hiring for two positions under a shared job description:
- Full-stack Engineer: predominantly back-end Java, with some React.js
- Java Engineer with DevOps responsibilities
Reasons to use Rodeo
Start with a chat, not a search bar
Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.
It searches the market for you
Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
Java-first, with meaningful.NET exposure
The role is approximately 70% Java and 30% .NET. Java is the future of the platform. You’ll build new microservices, REST APIs and data services using Spring Boot.
The.NET work is equally important: you’ll understand, maintain and safely migrate existing C# systems as their capabilities move into the new Java architecture. We’re therefore looking for genuine working knowledge of .NET—not simply surface-level familiarity.
The Technology
You’ll work across:
- Java and Spring Boot
- Microservices, REST APIs and data services -.NET and C# legacy systems
- Kafka as the transport layer
- Kubernetes and Helm on OpenShift
- React.js for the full-stack position
- DevOps and platform engineering for the DevOps-focused position
- Python for testing and automation—advantageous, but not essential
- Experience with EKS or AKS is also relevant and transferable.
What You’ll Bring
We’re looking for genuinely senior, hands-on engineers who can navigate both legacy complexity and modern architecture.
You’ll ideally have:
- At least five years of professional engineering experience
- Strong Java fundamentals and commercial Spring Boot experience
- Solid working knowledge of .NET and C#
- Experience building microservices and APIs
- Confidence working across a mixed-technology estate
- The judgement to migrate critical systems safely and incrementally
- Experience with Kubernetes, containers or modern deployment platforms
Get help with your application
Your very own career expert that helps elevate your application to the next level.
A capital-markets or financial-services background would be valuable, but it isn’t essential. Strong engineers from other complex, regulated or high-volume environments are encouraged to apply. We can teach the domain; engineering depth and sound technical judgement matter most.
Why Join?
This is more than a maintenance role. You’ll help determine how a strategically important platform evolves—from its service boundaries and migration approach to the way it is built, deployed and operated.
You’ll join early, work with a modern Java-led stack and see your decisions directly influence a significant three-year transformation.
Important Information
The position requires three days per week in London office
Visa sponsorship is not available for either role
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London
Skills
Location