eFX Java Algo Developer

Talan; Greater London; On-site; GBP 80,000 - 100,000; Full time

Job summary

A global consulting group is seeking an eFX Java Developer to join their London team. The ideal candidate will have extensive experience in Core Java and low-latency techniques, crucial for developing and maintaining high-performance electronic FX trading applications. Responsibilities include collaborating with front-office teams and optimising trading strategies while ensuring robustness and performance integrity. Exposure to FX trading systems and strong problem-solving skills are essential for this role.

Qualifications

• Strong hands-on experience with Core Java, including multithreading and concurrency.
• Proven front-office experience in FX or e-trading environments.
• Deep understanding of FIX protocol and electronic trading workflows.

Responsibilities

• Design, develop, and maintain low-latency Java applications for eFX trading systems.
• Collaborate with teams to enhance market data and pricing components.
• Implement algorithmic trading strategies for optimising performance.

Skills

Core Java

Multithreading

Low-latency techniques

FX trading experience

Connectivity

FIX protocol

Linux-based development

Wireshark

Job description

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 optimise trading performance.
• Work with FIX protocol and other market connectivity layers to ensure robust trade execution and data integrity.
• Optimise 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 optimisation.
• 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.