London, South East, England, United Kingdom Hybrid / WFH Options
McGregor Boyall
Senior Java Engineer - Low-Level Systems | High-Performance Architecture | Hybrid London I'm working with a leading financial technology organisation building ultra-lowlatency systems at scale, and we're looking for a Senior Java Engineer with a strong grounding in low-level systems programming . This is an opportunity to join a high-calibre team … The systems you'll help build operate in the microsecond range and demand deep OS, networking, and concurrency knowledge . What You'll Be Working On: Designing and developing low-latency, high-throughput microservices in Java Building and refining core components of a proprietary event-driven framework Working closely with architects, FPGA and infrastructure engineers to optimise performance … a London office Excellent benefits: pension, medical, 27+ days leave, bonus Why This Role: This is a career-defining opportunity to work on some of the most cutting-edge low-latency systems in the industry. You'll be part of a team that values technical depth , innovation , and clean engineering , all while working on systems where every microsecond More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
McGregor Boyall
Senior Rust Engineer - Low-Level Systems | High-Performance | Hybrid London I'm working with a leading financial technology organisation building ultra-lowlatency systems at scale, and we're looking for a Senior Rust Engineer with a strong grounding in low-level systems programming . This is an opportunity to join a high-calibre team of … The systems you'll help build operate in the microsecond range and demand deep OS, networking, and concurrency knowledge . What You'll Be Working On: Designing and developing low-latency, high-throughput microservices in Rust Building and refining core components of a proprietary event-driven framework Working closely with architects and infrastructure engineers to optimise performance across … a London office Excellent benefits: pension, medical, 27+ days leave, bonus Why This Role: This is a career-defining opportunity to work on some of the most cutting-edge low-latency systems in the industry. You'll be part of a team that values technical depth , innovation , and clean engineering , all while working on systems where every microsecond More ❯
Web/Network Infrastructure Engineer - F5, LowLatency sought by leading investment bank based in Canary Wharf. **Inside IR35 - 3 days a week on site** Role Overview This position sits within the Enterprise Computing team, which is responsible for the delivery infrastructure that supports thousands of applications used by both internal and external clients. The role focuses on 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 ❯
services organisation operating in the oil and energy derivatives space. The business runs a cutting-edge electronic trading platform that serves both internal trading teams and external clients, offering low-latency, highly reliable trading access via a modern UI.We are looking for a self-starter who takes ownership of technical challenges and delivers robust solutions, with the ability … field 5+ years of experience in frontend/UI engineering, with a focus on performance and scale Deep expertise in React, TypeScript, and JavaScript Strong understanding of WebSocket integration, low-latency data streaming, and threading Experience troubleshooting data-heavy UIs and optimising load times Familiarity with tools like Redis, Kafka, and cloud platforms such as Azure or AWS More ❯
are troubleshooting multicast flow issues in a server room or onsite at a global event. You'll work closely with our Senior Network Engineer to design, deploy, and support low-latency, high-bandwidth AV-over-IP systems, ensuring stability, visibility, and scalability across our networked media workflows. You'll also play a key role in supporting on-prem … Teams Product and engineering teams Reporting to: TechOps Director WHAT YOU'LL DO " Deploy and support time-synchronised AV-over-IP systems (e.g., Dante, AES67, PTP), ensuring accuracy and low-latency performance Troubleshoot complex issues across switching, routing, firewalling, transport layers, and AV-specific protocols in both on-prem and hybrid deployments (e.g. AWS) Advise on network best More ❯
Bromley, Kent, England, United Kingdom Hybrid / WFH Options
Pontoon
site) Rate: A highly competitive Umbrella Day Rate or Salary is available for suitable candidates About Us The ETT team is at the forefront of developing innovative solutions for low touch, lowlatency trading. Our focus on FIX connectivity, smart order routing, and algorithmic trading ensures our systems perform at the highest level to meet the demands More ❯
achieves on a daily basis. · Design, build, and maintain efficient, reusable, and reliable Python code · Rapidly prototyping solutions to quickly prove/disprove new concepts · Design and implementation of low-latency, high-availability, and performant applications · Work directly with Risk analysts and Product owners to turn functional requirements into efficient and maintainable code · Ensure the best possible performance More ❯
a Service (IaaS) platforms. Experienced in developing and delivering production applications focusing on outstanding user experience. Familiarity with DevOps practices in a global setting. Familiarity with Golang. Experience building low-latency micro-services using Node.js and Express. Experience building large-scale applications for production. Blockchain experience is a plus, but not required (we will train you!) 6+ years More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Adecco
lifecycle: requirements gathering, coding, unit testing, code reviews, and second-line support Essential Skills & Experience Strong expertise in core Java APIs (collections, concurrency, NIO) Solid understanding of multithreaded systems , low-latency I/O , and Java garbage collection Familiarity with design patterns (Observer, Factory, Singleton) Proven experience in front office system architecture , particularly within algorithmic trading Business knowledge More ❯
and general networking Good understanding of networking (TCP and UDP) and multicast data delivery Good understanding of distributed server architectures running on Linux Highly Desirable Skills Understanding of ultra-lowlatency distributed computing environments. Familiarity with FIX trading protocol and market data systems. Previous experience with Fixed Income, Equities, Futures & Options Trading, Risk and Settlement Systems. Familiarity with More ❯
C++ developer. What you'll need to succeed Extensive C++ development experience within financial services/investment banking - mandatory Good understanding of market or credit risk. Good experience with low-latency application development. Strong understanding of system architecture and design. BS/MS in computer science, engineering or similar. What you'll get in return Initial contract until More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
McGregor Boyall
a global financial services leader at the forefront of electronic trading infrastructure. They are looking for a skilled Python Software Engineer to contribute to cutting-edge automation tools powering low-latency trading systems. This is a Senior engineering role within a high-impact team shaping infrastructure for global markets. What You'll Do Design, build, and maintain automation More ❯
Expertise in identifying testing gaps, proposing enhancements, and fostering a culture of data quality and continuous improvement across teams. Familiarity with testing live video streaming solutions, focusing on performance, lowlatency, and seamless user experiences would be advantageous Our Tech Stack C Computer Vision: C+/20, Qt, Boost, ZeroMQ, ElasticSearch. Web: Java, Node.js, RESTful APIs, JUnit. General More ❯
support for overseas applicants - Modern tech stack deployed alongside some of the best talent in quant finance Requirements: - Excellent C++ programming skills, ideally using a modern version - Expertise with lowlatency/high throughput systems - Some level of experience with Python - Experience working with systems processing high volumes of data (terra or petabyte-scale) - Extensive expertise with at More ❯
platform, autonomous culture and hiring top talent. The firm empowers teams to operate with autonomy while leveraging industry leading scale and infrastructure. Engineers here work on cutting-edge problems—low-latency systems, hardware acceleration, machine learning—ensuring the platform remains best-in-class. You’ll join a quantitative research team in London as a Quantitative Developer - Python, focusing More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Understanding Recruitment
to work). As a Rust Developer, you will have the opportunity to: Develop a robust index platform integrated with high-performance, highly distributed AWS deployed systems. Build a lowlatency multithreaded Rust microservices system containerized in Docker and Kubernetes. Work with Async Rust in Tokio and integrate with Kafka. Work alongside a tight-knit team of highly More ❯
verbal communication A scientific, curious mindset - and ideally a degree in CS or a STEM subject Nice to have: Experience with React or modern JS frameworks Multi-threaded or low-latency application experience Familiarity with Git, PlasticSCM, or other DVCS tools Perks & Benefits Pension, private health insurance, gym membership Daily snacks, fruit, (and the occasional pizza + cake More ❯
on curve collaboration and contribution through different systems. The individual must have the below skills: Strong C++ Knowledge of Unix and Linux operating systems. Proven experience working in a low-latency environment Job Title: C++ Developer Location: London, UK Rate/Salary: 700.00 - 750.00 GBP Daily Job Type: Contract Trading as TEKsystems. Allegis Group Limited, Maxis 2, Western More ❯
. Demonstrated ability to own and operate services in production. Good to Have: Experience with Scala for data applications. Familiarity with serverless/event-driven architectures. Experience designing scalable, low-latency data services. Exposure to Datadog or CloudWatch monitoring tools. Nice to Have: Experience with LLM-powered applications or OpenAI APIs . Professional experience in a similar environment More ❯
Our Capital Markets Client are looking for a Algorithmic Trading Developer to join the team. You will design, develop, test and monitor a Global Algorithmic Trading Platform and LowLatency Trading Strategies. They are looking to offer up to c£130,0000 + Bonus + Package, 3 days a week in the city of London We are looking More ❯
VPC design , and Direct Connect Proven ability to represent clients in direct collaboration with AWS as a supplier, providing independent security assurance Preferred: AWS experience in high-performance or low-latency/trading solutions Exposure to AWS Outposts design and security Additional Info: Full financial and criminal checks will be conducted - CCJs or undeclared issues may lead to More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Tenth Revolution Group
stock options and paid parental leave. What You'll Be Doing: Build and maintain scalable data pipelines using Spark with Scala and Java, and support tooling in Python Design low-latency APIs and asynchronous processes for high-volume data. Collaborate with Data Science and Engineering teams to deploy ML models. Use Gen AI tools to accelerate development and More ❯
Gosport, Hampshire, United Kingdom Hybrid / WFH Options
Matchtech
environments. - Expertise in virtual desktop infrastructure (VDI) and virtualisation platforms (e.g. VMware, Hyper-V, Citrix). - Proven ability with queueing systems and job script optimisation. - Familiarity with RDMA or lowlatency network technologies. - Experience with Linux scripting languages (e.g. Bash, Python). - Ability to lead technical teams and communicate complex ideas clearly. - Basic knowledge of HPC programming languages More ❯