Java 17 Developer (Investment Banking, Kafka)

Location: London (Hybrid)Contract Length: 6 Months Day Rate: Competitive (Inside/Outside IR35 dependent on engagement)Start Date: ASAP

We are partnering with a leading investment bank looking to onboard an experienced Java Developer to join a front office trading technology team on an initial 6-month contract. The role focuses on building and enhancing trade processing systems within a fast-paced, high-performance environment.

• Develop and enhance high-performance trade processing systems
• Work closely with Front Office, Trading, and Quant teams to deliver robust technical solutions
• Design and build scalable, event-driven architectures using Kafka
• Contribute to the development and optimisation of Trade Runner frameworks
• Build containerised microservices deployed via Kubernetes
• Ensure system reliability and performance in a Linux-based environment
• Collaborate within Agile teams, contributing to design, code reviews, and best practices

• Strong hands-on experience with Java (Java 17 preferred)
• Proven background in investment banking or capital markets
• Solid experience with trade processing systems
• Exposure to or direct experience with Trade Runner platforms
• Strong knowledge of:
  • Apache Kafka (event-driven architecture)
  • Kubernetes (container orchestration)
  • Linux/Unix environments
• Experience building low-latency, high-throughput systems
• Strong problem-solving skills and ability to work in a front office environment

• Experience working directly with Front Office trading desks
• Knowledge of asset classes such as FX, Fixed Income, or Derivatives
• Familiarity with CI/CD pipelines and DevOps practices
• Experience with cloud platforms (AWS, GCP, or Azure)

• Work on critical, high-impact trading systems
• Exposure to front office technology and business stakeholders
• Collaborative, fast-paced environment within a top-tier investment bank
• Competitive contract rates

Guidant, Carbon60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business in relation to this vacancy.