Junior / Mid Full Stack Developer (Java) | Buy-Side Trading
Mayfair, London (Hybrid – 2–3 days onsite)
The Opportunity
We’re working exclusively with a high-growth buy-side quantitative fund building a next-generation electronic FX (eFX) trading engine.
This is a rare chance to join at a critical stage — their proprietary trading platform is going live, with £100m+ AUM already committed, and they’re looking for a developer to help push it over the line and scale it further.
You’ll be joining a small, highly experienced team (ex-tier 1 investment banks) where your work will directly impact live trading systems from day one.
The Role
This is a hands-on full stack position with a strong backend focus in Java.
You’ll contribute to core trading infrastructure while also gaining exposure across cloud, DevOps, and frontend components — ideal for someone early in their career looking to accelerate quickly in a high-performance environment.
What You’ll Be Doing
- Developing core components of a live trading system (order management, execution, strategy tooling)
- Contributing across backend and frontend development
- Building dashboards and analytics tools
- Working on AWS cloud infrastructure and deployment pipelines
- Collaborating closely with a Senior Developer and Head of Electronic Trading
- Owning meaningful parts of the system as it scales
- Spring Boot, REST APIs
- AWS (EC2, S3, CodeDeploy)
What We’re Looking For
- ~1–3+ years commercial experience (or strong junior profile)
- Experience with Spring Boot and APIs
- Exposure to cloud / DevOps tooling
- Strong problem-solving ability and curiosity
- Interest in financial markets or trading systems
Nice to have:
- Exposure to low-latency or real-time systems
- Any experience within FX, trading, or fintech environments
Why Join?
- Work on a live trading system from day one
- Direct exposure to buy-side trading and eFX infrastructure
- High ownership in a lean, elite team
- Fast progression as the fund scales
- Bonus directly linked to impact (especially infrastructure delivery)
- Private healthcare + gym membership
If you’re looking to break into buy-side trading and work on genuinely impactful systems early in your career, this is a standout opportunity.
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