Senior Java Developer/Low-Latency Developer Central London - Hybrid - 3 days on site, 2 days remote Inside IR35 12 months Brief Our client is seeking a LowLatency Java Developer with hands-on experience in FIX protocol integration to join their FX Options technology team. You will play a hands-on role in modernising and … optimising the trading platform , delivering ultra-lowlatency solutions for front-office trading and risk management. Key Responsibilities Develop, optimise, and maintain lowlatency Java-based trading systems Implement and maintain FIX protocol connectivity for FX Options trading Work closely with Quants, Traders, and Risk teams to translate business requirements into high-performance solutions Take ownership … of the end-to-end performance of the platform , including debugging, tuning, and optimising for ultra-lowlatency Ensure adherence to best coding practices and provide technical leadership within the development team Collaborate with cross-functional teams on architecture, design, and deployment of trading solutions Required Skills 5-10 years' experience as a Java Developer in front-office More ❯
Senior Java Developer/Low-Latency Developer Central London - Hybrid - 3 days on site, 2 days remote Inside IR35 12 months Brief Our client is seeking a LowLatency Java Developer with hands-on experience in FIX protocol integration to join their FX Options technology team. You will play a hands-on role in modernising and … optimising the trading platform , delivering ultra-lowlatency solutions for front-office trading and risk management. Key Responsibilities Develop, optimise, and maintain lowlatency Java-based trading systems Implement and maintain FIX protocol connectivity for FX Options trading Work closely with Quants, Traders, and Risk teams to translate business requirements into high-performance solutions Take ownership … of the end-to-end performance of the platform , including debugging, tuning, and optimising for ultra-lowlatency Ensure adherence to best coding practices and provide technical leadership within the development team Collaborate with cross-functional teams on architecture, design, and deployment of trading solutions Required Skills 5-10 years' experience as a Java Developer in front-office More ❯
LowLatency Java Developer - FX options - Inside IR35 Central London - Hybrid - 3 days on site, 2 days remote 12 months Brief Our client is seeking a LowLatency Java Developer with hands-on experience in FIX protocol integration to join their FX Options technology team. You will play a hands-on role in modernising and optimising … the trading platform , delivering ultra-lowlatency solutions for front-office trading and risk management. Key Responsibilities Develop, optimise, and maintain lowlatency Java-based trading systems Implement and maintain FIX protocol connectivity for FX Options trading Work closely with Quants, Traders, and Risk teams to translate business requirements into high-performance solutions Take ownership of … the end-to-end performance of the platform , including debugging, tuning, and optimising for ultra-lowlatency Ensure adherence to best coding practices and provide technical leadership within the development team Collaborate with cross-functional teams on architecture, design, and deployment of trading solutions Required Skills 5-10 years' experience as a Java Developer in front-office or More ❯
LowLatency Java Developer - FX options - Inside IR35 Central London - Hybrid - 3 days on site, 2 days remote 12 months Brief Our client is seeking a LowLatency Java Developer with hands-on experience in FIX protocol integration to join their FX Options technology team. You will play a hands-on role in modernising and optimising … the trading platform , delivering ultra-lowlatency solutions for front-office trading and risk management. Key Responsibilities Develop, optimise, and maintain lowlatency Java-based trading systems Implement and maintain FIX protocol connectivity for FX Options trading Work closely with Quants, Traders, and Risk teams to translate business requirements into high-performance solutions Take ownership of … the end-to-end performance of the platform , including debugging, tuning, and optimising for ultra-lowlatency Ensure adherence to best coding practices and provide technical leadership within the development team Collaborate with cross-functional teams on architecture, design, and deployment of trading solutions Required Skills 5-10 years' experience as a Java Developer in front-office or More ❯
C++ Developer - LowLatency, C++, FPGA, Linux, Market Data Systems, Order Entry Gateway Development, TCP/IP Protocols, Scripting Languages Role Overview: Join a high-performing lowlatency development team focusing on C++ components. The team specializes in delivering low-latency trading services using advanced technologies. Required Skills and Experience: Extensive C/C++ … development experience Familiarity with financial markets and order entry gateway development Knowledge of market data and Linux systems Scripting experience is a plus Interest in lowlatency development principles Understanding of TCP/IP protocols is advantageous London/Contract/Hybrid Working By applying to this job you are sending us your CV, which may contain personal More ❯
My client is seeking an experienced FX Java Developer to join their Front Office technology team, working on low-latency trading platforms and eFX systems . This role is critical to building and maintaining high-performance applications that support global FX trading, risk management, and market connectivity. Knowledge of FIX is required, knowledge of FX or similar lowlatency trading systems is desired. A high technical development ability in Java is also required. Familiarity with at least one delivery technique such as Agile, SCRUM, Kanban and similar would be a strong advantage. The position will also require a production stability-focused ethos and the ability to work to that goal with multiple teams, including liaising with … and ultimately P&L. Prototype solutions in a fast, agile manner with numerous demands from both Front Office and IT teams. Be comfortable performing analysis in a high frequency lowlatency environment. Participate in the development of all aspects of product delivery including design documents, functional specifications, unit testing and component build. Provide technical assistance and 3rd line More ❯
City of London, London, United Kingdom Hybrid/Remote Options
CBSbutler Holdings Limited trading as CBSbutler
eFX LowLatency Java Developer - Contract Location: London - Hybrid 3 days per week in the office Duration: 12 months Rate: £480-£550 per day Inside IR35 Hiring for a Senior Java Developer with strong FX and low-latency experience to join an eFX Algo IT team. You will build and optimise microsecond-level pricing, market connectivity … quickly for Front Office - Work across design, development, testing and release - Provide 3rd-line support and ensure production stability Skills and Experience: - Strong Core Java - FX background (essential) - Proven low-latency engineering skills - Hands-on with Agrona, ring buffers, UDP, LMAX Disruptor/Chronicle Queue - FIX protocol knowledge - UNIX experience - Agile delivery experience Please apply for immediate interview More ❯
order routing, and internal crossing strategies. The Role You'll work as a Core Java Developer within a high-performing Algo Engineering group, responsible for evolving a suite of low-latency, high-throughput trading engines that power the firm's EMEA and global electronic trading business. This includes delivery of key functional changes, performance optimisation, and close collaboration … resilience, and scalability Participate in peer reviews, mentoring, and agile ceremonies Required Skills & Experience Expert-level Core Java (collections, concurrency, NIO, memory management) Strong understanding of multithreaded systems and low-latency I/O Deep familiarity with design patterns (Observer, Factory, Singleton, etc.) Experience with TDD , GIT , Maven/Gradle , and continuous integration tools Confident communicator with experience More ❯
Shefford, Bedfordshire, South East, United Kingdom
Stackstudio Digital Ltd
projects with significant architectural ownership Mastery of multiple languages and paradigms; able to guide complex trade-offs and technical decisions Extensive experience scaling systems to handle high throughput and lowlatency Strong ability to mentor, elevate peers, and lead cross-team technical initiatives Proven experience driving quality, reliability, and operational excellence at scale Strategic thinking with the ability More ❯
London, South East, England, United Kingdom Hybrid/Remote Options
Harnham - Data & Analytics Recruitment
CD pipelines using GIT to ensure stable, reliable, and frequent model releases. Performance Engineering: Profile and optimise large-scale Spark/Python codebases for production efficiency, focusing on minimising latency and cost. Knowledge Transfer: Act as the technical lead to embed MLOps standards into the core Data Engineering team. Key Skills: Must Have: MLOps: Proven experience designing and implementing … to-Have/Desirable Skills DevOps/CICD (Pipeline experience) GCP (Familiarity with Google Cloud Platform) Data Science (Good understanding of math/model fundamentals for optimisation) Familiarity with low-latency data stores (e.g., CosmosDB ). If you have the capability to bring MLOps maturity to a traditional Engineering team using the MLFlow/Databricks/Spark stack More ❯
Shefford, Bedfordshire, South East, United Kingdom
Stackstudio Digital Ltd
projects with significant architectural ownership Mastery of multiple languages and paradigms; able to guide complex trade-offs and technical decisions Extensive experience scaling systems to handle high throughput and lowlatency Strong ability to mentor, elevate peers, and lead cross-team technical initiatives Proven experience driving quality, reliability, and operational excellence at scale Strategic thinking with the ability More ❯
Shefford, Bedfordshire, South East, United Kingdom
Stackstudio Digital Ltd
impact projects with significant architectural ownership Mastery of multiple languages and paradigms; capable of guiding complex trade-offs and technical decisions Extensive experience scaling systems for high throughput and lowlatency Strong ability to mentor, elevate peers, and lead cross-team technical initiatives Proven experience driving quality, reliability, and operational excellence at scale Strategic thinking with ability to More ❯