Sr Java Developer (FX)

Job Title: Sr Java Developer (eTrading FX)
Location: London - 3 days per week in the office
Salary/Rate: £700-710 per day inside IR35
Start Date: As Soon as Possible
Job Type: Contract

Company Introduction One of the world's largest global banks, with a strong presence in foreign exchange (FX) markets. Its eTrading platforms are central to delivering pricing, liquidity, and execution services to institutional clients, with a strong focus on low-latency systems, algorithmic trading, and scalable global infrastructure.

Job Responsibilities/Objectives 1.Design, develop, and optimize low-latency Java trading systems for FX pricing and execution
2.Translate business requirements into detailed technical designs and scalable architectures
3.Collaborate with traders, quants, and stakeholders to enhance pricing and algorithmic execution capabilities
4.Implement high-performance, distributed systems with robust testing and CI/CD practices

Required Skills/Experience
1.Strong server-side Java with deep understanding of multithreading and concurrency
2.Proven experience building low-latency, high-performance trading systems
3.Hands-on experience with FX Spot or Equities algorithmic trading or pricing systems
4.Knowledge of distributed systems, messaging (such as multicast or 29West), and FIX protocol

Desirable Skills/Experience 1.Experience with lock-free algorithms and advanced concurrency patterns
2.Background in front-office development within investment banking
3.Strong understanding of market microstructure and liquidity management
4.Exposure to enterprise integration patterns and event-driven architectures

If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format.

Disclaimer
Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies.
Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.