+ benefits/Bonus Join a leading financial technology and trading organisation driving innovation in electronic markets. As an eFX Software Engineer, you'll design and deliver high-performance, low-latency trading solutions that underpin mission-critical systems. This role offers the chance to work on cutting-edge technology where speed, scalability, and resilience are key. About the … Role Lead the design and development of secure, high-performance eFX systems Define and evolve Java patterns and techniques optimised for ultra-lowlatency (<40s) Architect fault-tolerant, scalable trading systems Influence technical strategy, architecture, and product roadmaps Collaborate with multiple teams to deliver best-in-class E-trading platforms Ensure all solutions meet security, compliance, and performance … standards What You'll Bring Strong experience in software engineering, architecture, and database design Expert-level Java development, including low-GC and lock-free patterns Proven background in FX trading systems, pricing, and risk management Deep understanding of CPU architecture, cache optimisation, and Linux performance tuning Expertise in networking and messaging (TCP, UDP, Multicast, FIX) Knowledge of quantitative instruments More ❯
London, England, United Kingdom Hybrid/Remote Options
Xpertise Recruitment
leading financial institution is hiring a Lead Java Developer to join their Equities Cash Technology team in London. This is a high-impact role focused on building and enhancing lowlatency trading platforms that support benchmark algos, smart order routing, and internal crossing across EMEA and global markets. What's on offer : Up to £165k base salary + … bonus Hybrid working: 3-4 days/week in the office Cutting-edge Java-based platform with high throughput and lowlatency Collaborative environment with quants, traders, and global tech teams Modern office near St. Paul's Cathedral with rooftop views, gym, and sustainable dining What you'll bring : Deep Java expertise (collections, concurrency, NIO, GC tuning) Experience … with multithreaded systems and lowlatency I/O Strong understanding of equities/derivatives markets and algo strategies (VWAP, TWAP, Arrival Price) Familiarity with FIX protocol, agile methodologies, and modern dev tools Ability to mentor junior developers and contribute across the SDLC This is a fantastic opportunity to lead innovation in electronic trading technology and work in 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 ❯
City of London, London, United Kingdom Hybrid/Remote Options
ARC IT Recruitment Ltd
London, Hybrid £competitive + excellent bonus + benefits International Capital Markets firm is scaling its London Equities platform and is hiring a Senior TechOps Associate to drive platform reliability, low-latency performance, and controlled change across OMS/EMS, eTrading/algo, market data, and exchange connectivity. You will sit close to the desk and act as the … Safer, faster releases (blue/green, canary, feature flags) in partnership with Trading, Quant, and Engineering. Mature observability (logs/metrics/traces), capacity planning, and performance tuning for low-latency flows. Strong production hygiene and controls aligned to MiFID II/MAR/best-ex. Leadership of the London on-call rota and contribution to a follow … Package & set-up Competitive base + performance bonus, benefits, and flexible hybrid working. A clear runway to platform ownership and team leadership. London HQ; hybrid model. Nice to haves Low-latency tuning experience. Experience with TCA and post-trade analytics. Follow-the-sun/on-call leadership. For a full consultation on this exciting new role, get in More ❯
market-maker – meaning we are committed to providing competitive quotes that we are willing to both buy and sell. To do this successfully, we design and implement our own lowlatency technologies, trading strategies, and mathematical models. Our Founding Partners first conceptualized Akuna in their hometown of Sydney. They opened the firm’s first office in 2011 in … Akuna: We are seeking a Network Engineer III to join Akuna’s innovative and growing IT Infrastructure team. The ideal candidate is likely to have a strong background in low-latency IP networking and will play a key role in maintaining and optimizing our global trading infrastructure. This role requires both technical depth and independent decision-making — you … solve math and coding problems are essential functions of the role Qualities that make great candidates: 3–5 years of professional experience in IP networking, ideally with exposure to low-latency environments (trading, financial services, or similar) Bachelor’s degree in Computer Science, Information Systems, Network Design, or a related field Strong understanding of TCP/IP ,OSI More ❯
Stuttgart, Baden-Württemberg, Germany Hybrid/Remote Options
Q.ant GmbH
ASIC implementation partner, you'll provide technical leadership to internal photonics, firmware, and system integration teams, translating cutting edge photonic requirements into a processor architecture optimized for high bandwidth, lowlatency control of our photonic computing platform. What makes this role unique High complexity: Integrating processor architecture with novel photonic device control paradigms - an area with few industry … production at world leading institutions like the Leibniz Supercomputing Centre. Your impact & responsibilities Within your first 18-24 months, you will: Deliver a processor architecture optimized for high bandwidth, lowlatency control of photonic integrated circuits in AI training and inference systems that achieve up to 30x energy efficiency vs. conventional systems. Ensure the design meets aggressive performance … of first pass bring up success in complex, multi domain systems. 10+ years of experience in processor or SoC architecture definition , with proven first silicon successes in high performance, lowlatency digital systems. Proven track record of leading processor architecture projects from concept to silicon. Deep technical expertise in CPU and/or DSP microarchitecture design (pipelines, instruction More ❯
ideally more) and excellent knowledge of Python - ideally coming from a Financial/Banking background with knowledge of Equities, Futures & Options and Fixed Income and Exchange Connectivity with some LowLatency experience. Job Overview You will work with the Product, Infrastructure and QA teams, to produce high performance, lowlatency and highly reliable code. Your goal More ❯
and order/execution management workflows. Some other highly valued skills may include: Experience in C++ for high-performance trading systems – Demonstrated ability to leverage C++ for building robust, low-latency trading platforms. Versatility in programming languages – Proven capability to work effectively with any programming language, demonstrating adaptability and a willingness to learn new technologies as required. Strong 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 ❯
a genuine passion for Java, agile development and Opensource tech to join an already highly skilled development team. You will have the opportunity to work on a cutting-edge lowlatency, high throughput distributed FX Trading platform. In this role you will work and learn alongside a team of highly experienced cross-skilled developers and technology specialists. Their … with a passion for testing and high code quality Degree in Computer Science, Software Engineering or STEM subject A good personality – team player with excellent communication skills! No previous lowlatency or multithreading experience needed just an interest in doing it!! Please do not hesitate to reach out direct for further details! sberry@hunterbond.com More ❯
a genuine passion for Java, agile development and Opensource tech to join an already highly skilled development team. You will have the opportunity to work on a cutting-edge lowlatency, high throughput distributed FX Trading platform. In this role you will work and learn alongside a team of highly experienced cross-skilled developers and technology specialists. Their … with a passion for testing and high code quality Degree in Computer Science, Software Engineering or STEM subject A good personality – team player with excellent communication skills! No previous lowlatency or multithreading experience needed just an interest in doing it!! Please do not hesitate to reach out direct for further details! sberry@hunterbond.com More ❯
Southampton, Hampshire, United Kingdom Hybrid/Remote Options
Hexwired Recruitment Limited
you will be involved heavily in the development of a new portfolio of products. As a Senior C++ Software Engineer, they are seeking engineers ideally with experience working on Lowlatency applications. Key Requirements: Degree or Masters in a relevant field (Telecoms, Computer Science, Physics, Maths, Wireless systems) Up to 5 years commercial Embedded C or C++ experience. … Solid experience working on products utilising ARM Processors or X86 Intel Processors Good experience working on lowlatency based applications is highly desirable (Networking, Semiconductor, finance etc) Experience working on Python is highly desirable but not essential The company are offering competitive salaries dependent on experience along with an excellent benefits package. The company are also offering semi More ❯
of perks and benefits. As a C++ 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 ❯
London, England, United Kingdom Hybrid/Remote Options
Client Server
of perks and benefits. As a C++ 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 ❯
global market data provider. 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 can work remotely (in the UK) if you're not within a commutable distance of London. Please note this is a 12 month Fixed Term Contract. About you: You have C/C++ development skills on Windows OS You have full software More ❯
time applications. • Collaborate with cross-functional teams to define technical requirements and integrate DevOps and DevSecOps practices into the development lifecycle. • Design and implement real-time streaming solutions with lowlatency and high throughput, documenting architectural decisions and best practices. • Conduct code reviews, provide feedback to ensure adherence to coding standards, and troubleshoot complex technical issues. • Collaborate with … time computer graphics and multimedia streaming technologies, with expertise in modern 3D graphics using Unity or Unreal Engine, as well as a deep understanding of streaming protocols, video codecs, low-latency networking, and performance optimization. • Deep understanding of game development principles, technologies, and pipelines, including graphics programming, physics engines, 3D asset pipelines, and game engines, as well as More ❯
systems analysis, design, and development. Comprehensive knowledge of designing and building server-side C++ applications, ideally on RedHat 7 or later. Proven experience of developing large scale mission critical, lowlatency or fault tolerant systems. Experience of software development methodologies and working in a structured environment. Knowledge of financial services, derivatives or trading in an exchange, sell-side … or front office environment would be highly beneficial. Experience of developing low-level, high performance systems. Familiarity with Service Orientated Architecture, concurrency models and threading, multicast messaging or FIX message protocols would be advantageous. Key Skills: C++ (ideally version 17 or later), Red Hat Linux (ideally V7 or later), LowLatency/High Performance trading applications/ More ❯
London, England, United Kingdom Hybrid/Remote Options
DeepL
across a software stack that we control end-to-end. This ranges from targeted optimizations for latest-generation GPUs over efficiently parallelized LLM training at scale to high-throughput, low-latency inference solutions serving millions of users. We build and improve the core components of our deep learning software and iterate on model design, closely collaborating with research … Responsibilities Enable efficient parallelization on highly interconnected GPU clusters and design ideal strategies for large-scale model training Build capable solutions for multimodal LLM inference in high-throughput and low-latency scenarios Dive deep into our tech stack: Profile, debug, and optimize GPU kernels and low-level systems configuration Together with our researchers, ensure that state-of More ❯
C++ Software Engineer/Developer UK Remote Up to £70k + Bonus 12 Month FTC Join a global market data provider and work on real-time, low-latency exchange connectivity systems that process over 40 billion messages per day. As a C++ Software Engineer, you'll build and maintain high-performance data feeds, core transport protocols and scalable … services deployed to AWS. Your Role: Develop and maintain real-time, low-latency systems in C/C++ on Windows Work across the full SDLC within an Agile team Enhance networking components (TCP/IP, multicast) and high-performance data pipelines Collaborate with engineers globally on mission-critical market connectivity tooling About You You have strong C/ More ❯
London, England, United Kingdom Hybrid/Remote Options
Sony Interactive Entertainment
the technology specialists at PlayStation. We build the underlying systems that power core platform capabilities and developer tools. Our mission is to enable world-class gaming experiences by delivering low-level, high-performance technology for PlayStation platforms. The Role We are looking for two engineers (this listing is for a P3 "Engineer II" level) to join the GDFT department … working on the design and optimisation of latency-sensitive network transmission protocols. You will contribute to our efforts in enabling cutting-edge cloud gaming features, including pixel streaming for PlayStation platforms. The successful candidates will contribute to the design, development, and optimisation of low-latency streaming technologies, including protocols such as QUIC and WebTransport, as part of … our cloud-based pixel streaming offering for PlayStation platforms. This role is ideal for engineers with experience in either low-level networking or real-time media pipelines, and particularly those interested in working at the intersection of these domains to solve complex performance challenges in interactive streaming environments. What You'll Be Doing Develop, optimise, and maintain lowMore ❯
We are hiring an experienced Senior Software Engineer with deep expertise in ultra-low-latency, high-throughput Java systems . This is a role for someone who builds systems that push performance boundaries, not just enterprise-grade services. You'll join a specialist engineering group designing fault-tolerant, sub-40s latency pipelines, shaping architecture decisions and solving More ❯
experience around build, deploy, release and observing services and ML models transparently on Google Kubernetes Engine. They work on 20+ Kubernetes clusters with hundreds of nodes running services with lowlatency requirements. This team also standardizes cluster and application security with common admission policies and container vulnerability, as well as establishing standard SLI/O for all services … running on Kubernetes. This team works closely with many product and enablement teams across Etsy. This team handles 20+ Kubernetes clusters with hundreds of nodes running services with lowlatency requirements. Build and support the CI/CD platform (Buildkite) used by more than a few hundred engineers to deploy their workloads to GKE. Maintain and upgrade GKE More ❯
projects to join a high-performance team with a culture of knowledge sharing and collective growth. The business are well reputed for growing graduates internally, and for providing ultra-low-latency solutions using C++. The role: Write high-performance C++ code. Low-latency networking. Work on live projects from day one with a team to support … or related degree Must have a GitHub/extensive examples of personal programming projects (C/C++ preferred) Genuine interest in technology! You will stand out if you have low-level personal projects (e.g., compilers, networks, OS ) You will not be considered if you do not have a portfolio/code examples to share If you are interested learning More ❯
Cambridge, Cambridgeshire, East Anglia, United Kingdom
Platform Recruitment Limited
projects to join a high-performance team with a culture of knowledge sharing and collective growth. The business are well reputed for growing graduates internally, and for providing ultra-low-latency solutions using C++. The role: Write high-performance C++ code. Low-latency networking. Work on live projects from day one with a team to support … or related degree Must have a GitHub/extensive examples of personal programming projects (C/C++ preferred) Genuine interest in technology! You will stand out if you have low-level personal projects (e.g., compilers, networks, OS...) You will not be considered if you do not have a portfolio/code examples to share If you are interested learning More ❯
EC2M, Coleman Street, Greater London, United Kingdom
Platform Recruitment
projects to join a high-performance team with a culture of knowledge sharing and collective growth. The business are well reputed for growing graduates internally, and for providing ultra-low-latency solutions using C++. The role: Write high-performance C++ code. Low-latency networking. Work on live projects from day one with a team to support … or related degree Must have a GitHub/extensive examples of personal programming projects (C/C++ preferred) Genuine interest in technology! You will stand out if you have low-level personal projects (e.g., compilers, networks, OS...) You will not be considered if you do not have a portfolio/code examples to share If you are interested learning More ❯