> Markdown version of [/jobs/ext/4679556-java-developer-london](https://www.wearedevelopers.com/jobs/ext/4679556-java-developer-london). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Java Developer- London - **Company:** FDM Group - **Location:** London, United Kingdom - **Salary:** £54,849 - **Contract:** Temporary to permanent - **Skills:** Java (Programming Language), Agile Methodology, Algorithmic Trading, Application Performance Management, C++ (Programming Language), Code Review, Computer Networks, Distributed Systems, Financial Information EXchange, Linux System Administration, Performance Tuning, Software Engineering, Software Organization, System Availability, Git, KDB+, Software Version Control, Jenkins - **Published:** November 12, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5962895959 ## About the Role * Background working within financial markets, investment banking or electronic trading environments. * Understanding of electronic trading systems, market data platforms or market connectivity technologies. * Experience working within Linux-based environments. * Knowledge of networking concepts and distributed systems. * Familiarity with FIX protocol, market data feeds or exchange connectivity would be advantageous. * Experience using source control and CI/CD tooling such as Git and Jenkins. * Understanding of software development best practices and the full Software Development Life Cycle. * Strong analytical and problem-solving skills. * Excellent communication skills with the ability to engage effectively with both technical and business stakeholders. * Ability to work independently while contributing positively within a collaborative team environment. * Exposure to algorithmic trading or electronic execution platforms. * Experience with KDB+/Q. * Knowledge of C++. * Experience working within Front Office technology teams. * Understanding of low-latency application development and performance optimisation. ## Description Our client is looking for a skilled Java Developer to join their Electronic Trading Technology team, supporting business-critical trading platforms and market access solutions. Working closely with Front Office stakeholders, technology teams and infrastructure partners, you will contribute to the development, enhancement and support of low-latency trading systems used across the FICC business. * Develop, enhance and support electronic trading applications and market access platforms. * Deliver technology solutions that support front-office trading and electronic execution activities. * Collaborate with traders, technology teams and business stakeholders to understand requirements and implement strategic enhancements. * Contribute to the design, development and deployment of high-performance trading applications. * Work with market data and trading infrastructure platforms to ensure system availability and performance. * Participate in technical design discussions, code reviews and Agile development ceremonies. * Support platform upgrades, integrations and ongoing technology improvements. * Investigate and resolve complex production issues, providing Level 3 support where required. * Monitor application performance and contribute to performance optimisation initiatives. * Work closely with global development teams to deliver scalable and resilient technology solutions.