Senior Java 17 Developer (Kafka & Investment Banking)

Company:  Lorien
Location: London
Closing Date: 06/07/2026
Hours: Full Time
Type: Permanent

Job Description

Java Developer – Investment Banking (Contract)

Location: London (Hybrid)

Contract Length: 6 Months

Start Date: ASAP



Overvie

wWe 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 Responsibiliti

  • esDevelop and enhance high-performance trade processing syste
  • msWork closely with Front Office, Trading, and Quant teams to deliver robust technical solutio
  • nsDesign and build scalable, event-driven architectures using Kaf
  • kaContribute to the development and optimisation of Trade Runner framewor
  • ksBuild containerised microservices deployed via Kubernet
  • esEnsure system reliability and performance in a Linux-based environme
  • ntCollaborate within Agile teams, contributing to design, code reviews, and best practic

esRequired Skills & Experien

  • ceStrong hands-on experience with Java (Java 17 preferre
  • d)Proven background in investment banking or capital marke
  • tsSolid experience with trade processing syste
  • msExposure to or direct experience with Trade Runner platfor
  • msStrong knowledge o
  • f:Apache Kafka (event-driven architectur
  • e)Kubernetes (container orchestratio
  • n)Linux/Unix environmen
  • tsExperience building low-latency, high-throughput syste
  • msStrong problem-solving skills and ability to work in a front office environme

ntDesirable Skil

  • lsExperience working directly with Front Office trading des
  • ksKnowledge of asset classes such as FX, Fixed Income, or Derivativ
  • esFamiliarity with CI/CD pipelines and DevOps practic
  • esExperience with cloud platforms (AWS, GCP, or Azur

e)Why Appl

  • y?Work on critical, high-impact trading syste
  • msExposure to front office technology and business stakeholde
  • rsCollaborative, fast-paced environment within a top-tier investment ba
  • nkCompetitive contract rat


es
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