Senior Software Engineer (Java)

TP ICAP Group Services Ltd; City Of London; On-site; GBP 70,000 - 90,000; Full time

Job summary

TP ICAP Group Services Ltd is seeking a Senior Java Developer based in the City Of London. The role involves designing and implementing low-latency trading system components while collaborating with diverse teams to ensure optimal performance and stability.

Candidates should have substantial experience in Java, familiarity with cloud platforms, and knowledge of trading flows. Join their dynamic environment and contribute to mission-critical trading services across multiple asset classes.

Qualifications

• Strong experience designing and building high-performance, low-latency Java services within electronic trading.
• Experience with memory architectures and network performance in low latency platforms.
• Strong communication skills with the ability to collaborate effectively across globally distributed teams.

Responsibilities

• Design and implement distributed, fault-tolerant Java services for electronic trading environments.
• Lead performance tuning, optimisation, and refactoring of low-latency trading components.
• Investigate and resolve production issues, ensuring system stability and high availability.

Skills

Java

Distributed messaging technologies (Solace/Kafka)

Cloud environments (AWS, EC2, EKS, Kubernetes)

Performance tuning and optimisation

Git

CI/CD concepts

Spring Boot

Observability stacks (Open Telemetry, Grafana)

Tools

Maven

JUnit

Job description

Role Overview

TP ICAP are looking for a Senior Java Developer delivering low‑latency, highly available trading system components with deep expertise in Java, FIX connectivity, and distributed real‑time messaging. In this role, you will be responsible for designing, building, and optimising mission‑critical trading services across multiple asset classes.

Role Responsibilities

• Design and implement distributed, fault‑tolerant Java services for electronic trading environments
• Lead performance tuning, optimisation, and refactoring of low‑latency trading components
• Investigate and resolve production issues, ensuring system stability and high availability
• Collaborate with global teams, including Architecture, DevOps, and Product Mentor and guide engineers to improve technical capability and engineering standards

Experience / Competences

• Strong experience designing and building high‑performance, low‑latency Java services within electronic trading
• Strong experience with distributed messaging technologies (Solace/Kafka) and real‑time systems
• Strong experience designing and building event‑driven systems deployed to cloud environments (AWS, EC2, EKS, Kubernetes)
• Experience with memory architectures and network performance in low latency platforms
• Experience with Maven or Gradle (Maven preferred), and JUnit
• Experience in Git or other source control systems
• Experience in CI/CD concepts
• Strong communication skills with the ability to collaborate effectively across globally distributed engineering, product, and operations teams
• Knowledge of FX, Credit, or Commodities electronic trading flows
• Knowledge of FIX engines and market connectivity workflows
• Knowledge of Linux engineering, troubleshooting, and performance optimisation
• Experience with Spring Boot or Google Guice dependency injection frameworks
• Experience with observability stacks (Open Telemetry, Grafana)
• Experience with distributed caching solutions such as Hazelcast
• Experience with BDD and automation frameworks (Cucumber)