Investment Banking - LowLatency C++ Developer - financial markets/Linux/Scripting/lowlatency/TCP/IP PURPOSE AND SUMMARY We are looking for a C++ developer to be part of the lowlatency development team. The team provides industry leading low-latency trading services for our clients, utilizing FPGA … markets/clients Experience with order entry gateway development. Experience with market data Reasonable knowledge of Linux Some Scripting knowledge Interest and some knowledge of principles of developing for lowlatency Relationship Builder Ability to work under pressure to meet targets Understanding of TCP/IP protocol a plus Permanent role - hybrid working - Central London based By applying More ❯
City of London, London, England, United Kingdom Hybrid / WFH Options
McGregor Boyall
global investment bank is seeking a Java Developer/eTrading Strategist to join its London Rates eTrading team . This front-office role focuses on designing, building, and optimising low-latency Java trading systems that power the bank's global Rates business. The Role You will engineer high-performance Java components for algorithmic execution, pricing, and market connectivity. … Working closely with traders, quants, and technologists, you'll deliver production-ready eTrading solutions with a focus on latency, scalability, and resilience . Key Responsibilities Design and implement low-latency, multithreaded Java applications for Rates eTrading. Develop and optimise execution algorithms, smart order routers, and pricing engines . Profile and tune Java applications for GC optimisation, lock … trading systems . Conduct rigorous code reviews, testing, and benchmarking . Candidate Profile Degree in Computer Science, Engineering, Mathematics , or related field. 10+ years' experience in Java development within low-latency trading systems . Deep knowledge of Java concurrency, GC tuning, memory management, and NIO . Familiarity with market microstructure, FIX, order types, and trading protocols . Proven More ❯
to join their front-office eFX Pricing & Platform Team . This is a hands-on leadership role where you'll work directly with Quants and Traders to engineer ultra-low-latency trading systems . You'll combine advanced Java engineering with strategic input into platform architecture, optimisation, and scalability -delivering business-critical solutions used daily in electronic trading. … What You'll Be Working On Designing and building low-latency, multi-threaded Java applications for market making and pricing. Developing and optimising pricing algorithms, order management, and execution logic . Engineering algo containers and ultra-low-latency applications using TCP/IP, UDP, and GC tuning. Driving automation, performance optimisation, scalability, and resilience across platforms. … across multiple feature teams. Partnering closely with front-office stakeholders to deliver impactful trading technology. What We're Looking For Deep expertise in Java with proven experience in ultra-low-latency, high-performance systems . Strong background in electronic trading (ideally eFX) with pricing engines, algos, or order management systems. Skilled in multi-threading, GC tuning, TCP/ More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
McGregor Boyall
to join their front-office eFX Pricing & Platform Team . This is a hands-on leadership role where you'll work directly with Quants and Traders to engineer ultra-low-latency trading systems . You'll combine advanced Java engineering with strategic input into platform architecture, optimisation, and scalability -delivering business-critical solutions used daily in electronic trading. … What You'll Be Working On Designing and building low-latency, multi-threaded Java applications for market making and pricing. Developing and optimising pricing algorithms, order management, and execution logic . Engineering algo containers and ultra-low-latency applications using TCP/IP, UDP, and GC tuning. Driving automation, performance optimisation, scalability, and resilience across platforms. … across multiple feature teams. Partnering closely with front-office stakeholders to deliver impactful trading technology. What We're Looking For Deep expertise in Java with proven experience in ultra-low-latency, high-performance systems . Strong background in electronic trading (ideally eFX) with pricing engines, algos, or order management systems. Skilled in multi-threading, GC tuning, TCP/ More ❯
Join Citi's Equities Smart Order Router team, a core part of our Front Office Technology, driving innovation in electronic trading. This established team builds and maintains high-performance, low-latency, high-throughput applications vital for optimizing liquidity sourcing across global markets. You will provide end-to-end SDLC support, developing and enhancing critical trading components. This involves … support, resolving complex queries from production support, product managers, and trading desks to maintain platform stability. Strategic Impact: Directly contribute to the continuous enhancement and stability of a latency-sensitive, high-volume trading platform, directly impacting trade execution and liquidity. Delivery Ownership: Take full ownership of deliverables, ensuring quality, reliability, and successful integration within a dynamic trading environment. Key … strong background in financial technology. The ideal candidate will possess: Financial Markets Expertise: Demonstrated prior software development experience within financial markets, preferably with exposure to electronic trading systems or low-latency environments. Core Java Proficiency: Expertise in Core Java development (version 1.8 or higher), with a deep understanding of its ecosystem, best practices, and performance characteristics. Advanced Data More ❯
days in office) Role Overview We are seeking a highly skilled Senior Java Developer to join the eFX Algo IT team as a Subject Matter Expert (SME) in lowlatency trading systems. This is a hands-on development role focused on building and enhancing pricing, hedging, and market connectivity systems for the eFX trading desk. You'll be … working in a fast-paced, front-office environment, collaborating closely with developers, business analysts, project managers, and QA teams. This role demands deep technical expertise in Java , particularly in lowlatency environments , and a strong understanding of FX trading systems . You'll be expected to contribute to all phases of the software development lifecycle, from design and … prototyping to deployment and support. Key Responsibilities Design and develop high-performance, low-latency Java applications for pricing, hedging, and market connectivity. Collaborate with Front Office and IT teams to gather requirements and deliver analytics and trading solutions that directly impact P&L. Rapidly prototype solutions in an agile environment with evolving priorities. Participate in sprint planning, estimation More ❯
Cambridgeshire, Teversham, United Kingdom Hybrid / WFH Options
SoCode Limited
Engineer Salary: Up to £120,000 + Benefits Location: Cambridgeshire Working Env: Hybrid (3 days on-site) The company is a Cambridge based start-up that specialising in ultra-lowlatency trading technology for financial markets. Following continued growth, they are looking for a Senior Software Engineer to join the team. As a Senior Software Engineer, you will … play a leading role in the design, development and maintenance of lowlatency, high-performance software which oversees the low-latency FPGA in real-time trading, along with comprehensive tests suites to ensure the correct and efficient operation of the system. You will collaborate with software and hardware engineers across the business and be responsible for More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
McGregor Boyall
in designing and scaling advanced systems and algorithms that safeguard some of the most dynamic and complex markets in the world. This is a chance to build high-performance, low-latency, and cloud-native systems while tackling challenges in fraud detection, data engineering, and market integrity . What you'll do Design, implement, and optimise algorithms for detecting … cutting-edge tech including Java, Kafka, Spark, Kubernetes, Clickhouse, Snowflake, Redis . Collaborate with quants, data scientists, and compliance experts to improve surveillance strategies. Contribute to system architecture for low-latency monitoring and high-throughput processing . Continuously improve data quality, reliability, and query optimisation at scale. What we're looking for 5+ years' experience in software engineering … in financial markets, market surveillance, or large-scale data systems . Strong skills in Java (or similar: Kotlin, C#, C++) ; Python is a plus. Proven experience with real-time, low-latency systems and distributed data pipelines . Hands-on with Kafka, Spark, K8s, Clickhouse, Snowflake, and modern data architectures . Solid foundations in algorithms, system design, and optimisation More ❯
Sporting Solutions is a product led, technology-driven company that sources, generates, and distributes real-time sports betting data. Our systems operate under tight performance demands: lowlatency, high throughput, and ongoing reliability. We're working to continually improve our platforms and are evolving our infrastructure and applications - including moving from legacy .NET Framework systems toward modern, containerised … in telemetry and observability , helping us move from log-centric metrics to first-class telemetry using OpenTelemetry and modern observability stacks. Optimise for performance , helping the platform scale for low-latency, high-throughput demands in real-time sports data delivery. Mentor and guide engineers , promoting a strong DevOps culture and fostering collaboration across teams. Architect and implement solutions … and setting engineering standards. Nice to Have: Experience with OpenTelemetry , Prometheus, Grafana, or similar observability tooling. Exposure to hybrid-cloud or cloud migration strategies. Familiarity with performance optimisation in low-latency data pipelines. Contributions to DevOps-related communities, blogs, open source, or talks. What You'll Get The opportunity to shape the future of DevOps and Developer Experience More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Salt Search
model. You'll be part of a high-performing team focused on delivering secure, high-performance, and scalable solutions to support institutional trading platforms. Key Responsibilities: Develop and maintain low-latency eFX trading systems using high-performance Java (e.g., lock-free, low-GC techniques). Design and implement fault-tolerant system architectures with <40 microseconds one-way … technical strategy, ensuring alignment with product and trading goals. Contribute to the evolution of FX pricing and risk management capabilities. Required Skills & Experience: Strong expertise in core Java , including low-latency, high-throughput systems. Deep understanding of modern CPU architecture , cache optimization , and Linux performance tuning . In-depth experience with networking protocols such as TCP, UDP, Multicast More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
range of perks and benefits. As a C++ Developer you will join an Agile team focussed on building and maintaining Exchange Connectivity software systems that require real-time and lowlatency, maintaining data feeds and developing key underlying transport protocols for data transmission. The platform has been built with C++ and C# deploying to AWS and requires high … scalability and lowlatency - they currently handle 40 billion messages per day. Location/WFH: You'll join colleagues in the City office three days a week with flexibility to work from home the other two days. Please note this is a 12 month Fixed Term Contract. About you: You have C/C++ development skills on Windows More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
of perks and benefits. As a Backend Software Engineer you will join an Agile team focussed on building and maintaining Exchange Connectivity software systems that require real-time and lowlatency, maintaining data feeds and developing key underlying transport protocols for data transmission. The platform has been built with C++ and C# deploying to AWS and requires high … scalability and lowlatency - they currently handle 40 billion messages per day. Location/WFH: You'll join colleagues in the City office three days a week with flexibility to work from home the other two days. Please note this is a 12 month Fixed Term Contract. About you: You have C/C++ development skills on Windows More ❯
fast, scalable, user-first systems. A leading tech company is looking for a passionate Frontend Software Developer to join their team . You'll be working on high-traffic, low-latency systems that power multiple products and deliver innovative features to millions of users worldwide. This is a hands-on, collaborative role within an agile team building solutions … performance-driven frontend applications. Contribute to architecture decisions and developer tooling. Collaborate across teams to deliver seamless, high-quality user experiences. Work on backend-facing features supporting real-time, low-latency systems. What you bring: Commercial experience with TypeScript and frontend development. Exposure to React , JavaScript , HTML5 , CSS3 , and SQL . Experience working in Linux environments with a More ❯
City of London, London, United Kingdom Hybrid / WFH Options
OTA Recruitment
will work collaboratively within a sport-specific team to develop robust, scalable models, contribute to the research and development of new modelling methodologies, and ensure our forecasts remain accurate, low-latency, and aligned with client demands. You will be expected to use your programming, analytical, and mathematical skills to extract insights from data, build high-performance modelling pipelines … structure, reproducibility, and version control. Work collaboratively with other Data Scientists to propose ideas, troubleshoot modelling challenges, and refine methodologies. Contribute to the delivery of accurate, reliable forecasts with lowlatency under evolving client or market demands. Participate in code reviews and collaborative design sessions to uphold technical quality across the team. Provide mentorship and support to Junior More ❯
will work collaboratively within a sport-specific team to develop robust, scalable models, contribute to the research and development of new modelling methodologies, and ensure our forecasts remain accurate, low-latency, and aligned with client demands. You will be expected to use your programming, analytical, and mathematical skills to extract insights from data, build high-performance modelling pipelines … structure, reproducibility, and version control. Work collaboratively with other Data Scientists to propose ideas, troubleshoot modelling challenges, and refine methodologies. Contribute to the delivery of accurate, reliable forecasts with lowlatency under evolving client or market demands. Participate in code reviews and collaborative design sessions to uphold technical quality across the team. Provide mentorship and support to Junior More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Intellect Group
Technical Account Manager – Trading/Production Environment/Financial Services A leading low-latency trading firm is seeking a Technical Account Manager to support mission-critical trading environments and strengthen client relationships. This is a unique opportunity to work directly with production platforms that power financial markets worldwide. You’ll be the bridge between clients and technology, providing … engage technical clients. ✅ Experience with production support environments . ✅ Analytical and problem-solving skills (debugging/log files). Nice to have: Familiarity with trading, fintech, market data, or low-latency systems . Project management experience (Gantt, RAID, etc.). Networking, monitoring, and troubleshooting knowledge. Git or other version control systems. What’s on offer More ❯
Technical Account Manager – Trading/Production Environment/Financial Services A leading low-latency trading firm is seeking a Technical Account Manager to support mission-critical trading environments and strengthen client relationships. This is a unique opportunity to work directly with production platforms that power financial markets worldwide. You’ll be the bridge between clients and technology, providing … engage technical clients. ✅ Experience with production support environments . ✅ Analytical and problem-solving skills (debugging/log files). Nice to have: Familiarity with trading, fintech, market data, or low-latency systems . Project management experience (Gantt, RAID, etc.). Networking, monitoring, and troubleshooting knowledge. Git or other version control systems. What’s on offer More ❯
london, south east england, united kingdom Hybrid / WFH Options
Intellect Group
Technical Account Manager – Trading/Production Environment/Financial Services A leading low-latency trading firm is seeking a Technical Account Manager to support mission-critical trading environments and strengthen client relationships. This is a unique opportunity to work directly with production platforms that power financial markets worldwide. You’ll be the bridge between clients and technology, providing … engage technical clients. ✅ Experience with production support environments . ✅ Analytical and problem-solving skills (debugging/log files). Nice to have: Familiarity with trading, fintech, market data, or low-latency systems . Project management experience (Gantt, RAID, etc.). Networking, monitoring, and troubleshooting knowledge. Git or other version control systems. What’s on offer More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Intellect Group
Technical Account Manager – Trading/Production Environment/Financial Services A leading low-latency trading firm is seeking a Technical Account Manager to support mission-critical trading environments and strengthen client relationships. This is a unique opportunity to work directly with production platforms that power financial markets worldwide. You’ll be the bridge between clients and technology, providing … engage technical clients. ✅ Experience with production support environments . ✅ Analytical and problem-solving skills (debugging/log files). Nice to have: Familiarity with trading, fintech, market data, or low-latency systems . Project management experience (Gantt, RAID, etc.). Networking, monitoring, and troubleshooting knowledge. Git or other version control systems. What’s on offer More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Intellect Group
Technical Account Manager – Trading/Production Environment/Financial Services A leading low-latency trading firm is seeking a Technical Account Manager to support mission-critical trading environments and strengthen client relationships. This is a unique opportunity to work directly with production platforms that power financial markets worldwide. You’ll be the bridge between clients and technology, providing … engage technical clients. ✅ Experience with production support environments . ✅ Analytical and problem-solving skills (debugging/log files). Nice to have: Familiarity with trading, fintech, market data, or low-latency systems . Project management experience (Gantt, RAID, etc.). Networking, monitoring, and troubleshooting knowledge. Git or other version control systems. What’s on offer More ❯
Manchester, North West, United Kingdom Hybrid / WFH Options
Transparent Technology
online publishing company that is expanding its digital platforms. They are looking for a talented Backend JavaScript Developer to join their small, collaborative team and work on high traffic, lowlatency ad tech and greenfield projects with high visibility across the business. This is a fantastic opportunity to join a well-established brand in the sports media space … where your work will directly shape how millions of fans consume digital content. What you'll be working on: Developing high traffic/lowlatency ad tech using Vanilla JavaScriptand TypeScript alongside open source projects such as js Delivering multiple greenfield projectsacross publishing and digital media Working in a small, agile, cross-functional teamwith lots of influence on More ❯
of database systems, including SQL & NoSQL solutions (PostgreSQL, Redis, MongoDB, etc.). Strong grasp of microservices architecture, server orchestration, and containerization (Docker, Kubernetes). Experience working in high-performance, low-latency environments, optimizing backend logic for multiplayer scalability. Bonus Skills: Expertise with modern DevOps practices, CI/CD pipelines, and automated infrastructure management. Expertise with off-the-shelf More ❯
City of London, London, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
experience, including technical project leadership, code reviews, 1-2-1s, developing others You have experience in a Capital Markets environment, FX preferred You have a strong appreciation of lowlatency systems and code optimisation to ensure speed You have excellent communication and collaboration skills You are degree educated in Computer Science or similar technical or numerate discipline More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
About you: You have strong backend OOP, multithreaded software engineering experience (e.g. C++, Java, Python) You have commercial Rust development experience You have experience of working on high throughput, lowlatency trading systems You achieved a 2.1 or above in Computer Science from a top tier university You are collaborative and pragmatic with great communication and stakeholder management More ❯