eFX Java Algo Developer

London, England, gb on site Until 8/21/2026 H-1B sponsor history First posted December 23, 2025 Last posted February 24, 2026
Job description

Job Title: eFX Java Developer

Location: London
Company: Talan
Type: [Full-time]

About Talan

Talan is a global consulting group specialising in business and IT transformation, with a strong presence in financial markets, digital innovation, and data-driven technologies. We partner with leading financial institutions to deliver innovative solutions that drive performance and resilience.

We are looking for a highly skilled eFX Java Developer with a strong background in front-office systems, low-latency trading platforms, and real-time market connectivity to join our team.

Key Responsibilities

  • Design, develop, and maintain low-latency Java applications supporting electronic FX (eFX) trading systems.

  • Collaborate with front-office teams to build and enhance connectivity, market data, pricing, and hedging components.

  • Implement algorithmic trading strategies and optimize trading performance.

  • Work with FIX protocol and other market connectivity layers to ensure robust trade execution and data integrity.

  • Optimize performance through garbage collection-aware techniques, multithreading, and fine-tuned system design.

  • Monitor and improve application performance by designing and maintaining appropriate metrics and KPIs.

  • Collaborate with infrastructure teams to ensure ultra-low-latency, high-throughput, and resilient systems.

  • Participate in code reviews, design sessions, and architecture discussions for high-performance systems.

  • Analyse and troubleshoot production issues, including network-level packet analysis (Wireshark) and Solace message bus troubleshooting.

  • Stay up to date with emerging technologies in FX trading, crypto markets, and distributed systems.

Key Skills & Experience

Essential:

  • Strong hands-on experience with Core Java, including multithreading, concurrency, and low-latency techniques.

  • Proven front-office experience in FX or e-trading environments.

  • Experience in connectivity, market data, core pricing, and hedging strategies.

  • Deep understanding of FIX protocol and electronic trading workflows.

  • Expertise in Linux-based development and performance tuning.

  • Experience with garbage collection-aware coding, real-time systems, and machine-level performance optimization.

  • Strong grasp of Solace messaging, networking fundamentals, 10GbE, and multicast environments.

  • Experience with Wireshark or similar tools for packet analysis and latency diagnostics.

Desirable:

  • Exposure to crypto trading platforms or digital asset markets.

  • Familiarity with machine sympathy principles and high-performance system design.

  • Experience designing real-time mission-critical applications with message bus technologies.

  • Knowledge of performance monitoring tools and metrics instrumentation frameworks.

#TalanUK

About this role

Summary

Develop and optimize low-latency Java applications for electronic FX trading systems.

Job title

eFX Java Algo Developer

Experience level

proven experience in FX or e-trading environments

Industry

finance

Location requirements

London, England, gb; remote work not specified

Salary

Not specified

Visa sponsorship

H-1B sponsor history

Management role

No

Skills & keywords

Required skills

Core JavamultithreadingconcurrencyFIX protocolLinuxgarbage collectionSolace messagingWireshark

Preferred skills

crypto tradingdigital assetsperformance monitoringmessage bus

Specializations

Javalow-latencyFXtradingconnectivity
Locations

Structured locations inferred from the posting.

London, UK

On-site City