Java Developer- London

About The Role

FDM is a global business and technology consultancy seeking an AVP Java Developer to work for our client within the Banking & Financial Services sector. This is initially a 12-month contract with the potential to extend and will be a hybrid role based in London.

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.

Responsibilities

• 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.
• About You

• Experience developing enterprise applications using Java.
• 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.
• Desirable Skills

• 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.
• About Us

FDM is an award-winning global leader in tech and business talent solutions, backed by more than 35 years of industry experience. We have centres across Europe, North America, and Asia-Pacific, and a global workforce of over 2500 employees. FDM has shown exponential growth throughout the years, firmly establishing itself as an award-winning employer, currently listed on the FTSE4Good Index and as a 2026 Financial Times UK ‘Best Employer’.

Diversity and Inclusion

FDM Group is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, colour, religion, sex, sexual orientation, national origin, age, disability, veteran status or any other status protected by federal, provincial or local laws.

Why join us

Career coaching, mentoring and access to upskilling throughout your entire FDM career

Assignments with global companies and opportunities to work abroad

Opportunity to re-skill and up-skill into new areas, develop non-linear career paths and build a skillset within your field

Annual leave and work-place pension