Java 17 Developer (Investment Banking, Kafka)
Lorien
London
Contract
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Java Developer - Investment Banking (Contract) Location: London (Hybrid)
Contract Length: 6 Months
Day Rate: Competitive (Inside/Outside IR35 dependent on engagement)
Start Date: ASAP
Overview 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.
Key Responsibilities • 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
- 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
- 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)
- Exposure to front office technology and business stakeholders
- Collaborative, fast-paced environment within a top-tier investment bank
- Competitive contract rates
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