Java Engineer: IG Prime

Java Engineer – IG Prime

We’re IG Group, a FTSE
100 Fin Tech company that builds mobile, web and desktop platforms for institutional trading. Our products enable clients to trade stocks, shares, leveraged products, futures, options and crypto, and millions of traders rely on our infrastructure.

Our engineering team is part of the IG Prime division, strengthening IG’s institutional client offering. The FIX Integrations team builds and maintains the APIs that power connectivity with institutional clients and partners across global markets, delivering resilient, high‑performance trading and market data integrations.

You will help build a new suite of robust trading APIs in the cloud, enabling new clients to onboard quickly and supporting IG’s growth in new markets.

• Develop and maintain IG’s FIX APIs
• Help deliver the IGPrime division’s product roadmap of new functionality
• Provide technical support to IG’s clients and FIX support teams when required
• Monitor and manage FIX API services with a focus on performance, reliability, and resilience
• Collaborate with business stakeholders to improve processes and deliver excellent service
• Build test harnesses and increase automation across the FIX platform

• Experience with developing external APIs
• A continuous improvement mentality, experience coding with AI
• Good at identifying development risks and building mitigations
• ~5years of Java development experience
• Strong concurrent/multithreaded programming skills
• Experience with asynchronous systems (streaming, messaging)
• Experience using the Spring Framework
• Linux proficiency, including shell scripting
• Experience with cloud technologies, ideally AWS

• Lead and Inspire – drive trust, alignment, and enthusiasm
• Think Big – focus on the problems that most impact commercial outcomes
• Champion the client – understand and prioritise client needs
• Deliver at pace – push for fast, sustainable growth
• Raise the bar – take ownership, be accountable and share feedback

We provide a comprehensive benefits package, flexible working, and career development opportunities:

• 12% flexible benefits package above base salary, plus pension, insurance and medical plans
• Annual performance‑based bonus scheme
• Matched giving for fundraising activity
• Flexible working hours and work‑from‑home options
• Career‑focused technical and leadership training, including unlimited Linked In Learning access
• One day off on your birthday
• Two days of volunteering leave per year
• Extra time off for volunteering and community work
• Social events and special‑interest groups

We believe in diversity and encourage applications from people with diverse backgrounds and experiences.