1 to 25 of 314 Low Latency Jobs in the UK

Low Latency Network Engineer page is loaded Low Latency Network Engineer Apply locations London - 62 Buckingham Gate time type Full time posted on Posted 12 Days Ago job requisition id REQ-25608 Low Latency Network Engineer We are seeking an experienced Network Engineer to join our latency-critical trading infrastructure team. As part … edge technologies. This role encompasses all aspects of networking, including datacenters, market data, co-location (co-lo), and proximity colocation sites. 3. Principal Responsibilities Senior Engineering Role : Focus on low-latency network technologies with a balanced mix of project work and operations in the low-latency trading environment, including Market Data, Trading, and co-lo design. … to finish, including requirement gathering, design, cost analysis, implementation, and deployment. Innovation Leadership : Lead research and innovation efforts to introduce new network technologies into the firm, including RF technologies, low-latency transport, routing/switching, and compute technologies. Network Configuration and Support : Configure, install, maintain, and support critical network software and hardware components. Research, price out, and implement More ❯

role, responsible for refining and executing the IT vision, from market data aggregation and distribution, market making execution & hedging, client negotiation and order management. Hands-on experience in ultra low latency and high availability applications is required. Summary of Key Purposes of the Role: We are rebuilding our low latency Foreign ExchangeCash platform covering client connectivity … responsibilities will include: Lead the architectural design of Forex trading applications Collaborate with stakeholders to define and refine the vision for the Forex trading chain Oversee the implementation of low latency and high availability solutions Build & lead a local feature team on the build out of components of the new platform Provide technical leadership and guidance to the … development team ensuring the build of a highly resilient, well monitored low latency platform Stay updated on industry trends and emerging technologies related to Forex trading and banking Responsibilities: Architecture & Design Define the target micro service/event driven architecture (latency budget, throughput, HA & DR, observability). Own protocol & data model standards for client to venue and More ❯

Investment Banking - Low Latency C++ Developer - financial markets/Linux/Scripting/low latency/TCP/IP PURPOSE AND SUMMARY We are looking for a C++ developer to be part of the low latency 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 low latency 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 ❯

Senior Low Latency Java Engineer (SVP) This is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology Team. The overall objective of this role is to lead applications systems analysis and programming activities. The role is to provide senior, low-latency systems and application … enablement group of Subject Matter experts - who produce application frameworks and engage with application engineers to enable application Modernisation to over 100 teams across Citi with a concentration on low latency eTrading platforms in Markets Technology. Responsibilities: 90% hands in the Java codebase. We build microservices based event sourcing systems on a low latency in-house … and enhance processes Analyse complex business processes, system processes, and industry standards to define and develop solutions to high level problems Provide world class expertise in area of Java low latency development. Utilize advanced knowledge of supported main system flows and comprehensive knowledge of multiple areas to achieve technology goals Consult with end users to identify system function 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 ❯

profits The business is actively expanding as there is additional headcount for a number trade platform specialist Java Development with a focus on either/or Quantitative Development or low-latency performance optimization. You will be working on greenfield projects to build out and enhance their low latency trading systems. THE ROLE: Working in a fast … for a high-frequency, multi-exchange setup. You will focus on optimising every component of the trading stackincluding multi-threading, network communication, order processing, and execution logicto achieve ultra-low latency and high throughput. Robust monitoring, alerting, and performance tracking ensure system reliability. The team has deep expertise in trading protocols, messaging systems, network architectures, and concurrent computing … of trade metrics and strategy efficiency Engineer and optimise ultra-fast connections to trading venues, with a focus on throughput Design architecture capable of handling large volumes in a latency-sensitive environment Implement and manage high-performance messaging frameworks like Aeron and SBE Perform in-depth profiling and tuning to eliminate latency and optimise microsecond-level performance Develop More ❯

the brightest minds in trading, technology and finance to build the trading system of the future, striving for excellence in everything we do. We're seeking a highly skilled Low-Latency Developer to join our eTrading team. Primary responsibility will be to help implement a high-performance pricing container. This system will ingest real-time data, process it … with ultra-low latency, and publish liquidity across multiple trading venues. Responsibilities Develop pricing algorithms and normalization logic with nanosecond-level precision. Optimize system performance using kernel bypass techniques (e.g., DPDK), CPU pinning, and efficient memory management. Integrate with trading venues via FIX protocol and proprietary APIs. Collaborate with infrastructure teams to deploy and maintain systems. Ensure high … tolerance through redundant processing and networking. Implement monitoring tools for real-time performance tracking and diagnostics. Adhere to security and compliance standards for financial data handling. Strong proficiency in low latency C++ , Rust , or Java for performance-critical applications. Experience with DPDK , RDMA , or other kernel bypass/network acceleration techniques. Deep understanding of multithreading , lock-free programming More ❯

of Tier-1 Connectivity services for Alexa Cloud that enable connectivity between Alexa enabled devices (Echo, Smart Home etc.) and Alexa Key job responsibilities Building software to deliver a low latency, low cost, highly reliable, and high scalable connectivity between Alexa enabled devices and Alexa Cloud • Drive and lead software design, development standards, team processes and code … reviews. • Optimize software libraries for low latency, CPU and memory footprint. • Deliver high-quality software through working in a dynamic, team-focused Agile/Scrum environment • Contributing to the professional development of colleagues, improving their technical knowledge and engineering practices. About the team The mission of the Alexa Connectivity teams is to deliver a low latency, low cost, highly reliable, and high scalable connectivity between Alexa enabled devices and Alexa Cloud. The changes we make, improves the speed and reliability experienced by end customers when interacting with Alexa devices, and simplifies experience for developers and rest of Alexa by abstracting the connection management from them. The team handles tens of billions of transactions per More ❯

Senior Java Engineer - Low-Level Systems | High-Performance Architecture | Hybrid London I'm working with a leading financial technology organisation building ultra-low latency 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 ❯

Senior Java Engineer - Low-Level Systems | High-Performance Architecture | Hybrid London I'm working with a leading financial technology organisation building ultra-low latency 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 ❯

Network Engineer (Low Latency) A Network Engineer is required to join the Ultra Low Latency Team, responsible for the deployment and planning of the Bank's network infrastructure. The team is responsible for the delivery and deployment of network projects and requests to enhance CLIENTS's infrastructure to meet current and future business demands:- The role … of working as a senior project engineer in a professional environment. Ability to work independently without supervision Strong experience working in Financial Services Strong experience working in an Ultra Low Latency environment Ability to work under pressure and to tight deadlines whilst maintaining attention to detail. Analyse, review and understand network topologies. Good understanding of networking principles, Good More ❯

Network Engineer - Low Latency, Arista, Corvil Our client is seeking a Network Operations Engineer with experience in Low Latency Networking such as Arista 7130, MetaMux, MetaWatch, and MultiAccess to join their team. Experience with Corvil is also required to be considered for this role. Key Responsibilities: Providing Support & Engineering within low latency networking environment More ❯

Senior Java Low Latency Engineer (VP) - London Overview Citi is a world-leading global bank. We have approximately 200 million customer accounts and a presence in more than 160 countries and jurisdictions worldwide. We provide consumers, corporations, governments, and institutions with a broad range of financial products and services, including consumer banking and credit, corporate and investment banking … and solutions, and unparalleled access to capital and liquidity. What We do/The Team In the world of Capital Markets electronic trading, performance, agility, and reliability are crucial; latency beyond the micro- or even nano-second realm just won't cut it! A core team of expert engineers within Citi have developed a framework, toolset and collection ofcomponentsfor … a core framework, toolset and collection ofcomponentsfor building self-healing, scalable, high performance,asynchronous, event driven, Java Microservices based solutions. We build microservices based event sourcing systems on a low latency in-house framework. Response times in the 10 microsecond to 100 microsecond range. Role Overview/What you will you do: Work on the integration of functions More ❯

new functionality for the Global Market Data platform. The Global Market Data platform is evolving rapidly, offering many opportunities to exercise and improve technical skills in the area of low latency. The role also offers the opportunity to learn the Equity Trading business. Specific to role: Design and development of the Global Market Data platform (C++, Linux). Design … Exegy etc. Exchanges/Alternative Trading Venues Key Skills and Experience required - Good working knowledge of C++. Also Perl/Shell Scripting, Linux. Knowledge and experience in building ultra-low latency market data platform will be a big plus. Ability to work to tight deadlines as part of a team. Ability to work with floor traders, production support … on the types of people involved. Good understanding of Network Protocols - Multicast/TCP/IP. Functional testing Any Beneficial/Nice to have skills and experience: Desired Skills Low Latency Market Data Skills - VELA or any other low-latency platform. Working knowledge of containerization platforms e.g. OpenShift. Experience of algorithmic trading and electronic trading business More ❯

The Trading Infrastructure team is building a high-performance, front-to-back Trading Platform that supports multi-asset trading. The platform is designed to handle financial instruments with low-latency execution, robust risk controls, and seamless integration across trading, risk, operations, and finance workflows. The system is built with a modular architecture encompassing core components such as market … algorithms, risk engines, UI dashboards, middle office reconciliation, and account infrastructure. We emphasize event-driven, deterministic system design, real-time observability, and strong security. Our tech stack includes Java (low-latency), Python, Web UI (React/Ag-Grid), Aeron, ClickHouse, Kubernetes, and modern CI/CD tooling, with a strong focus on automation, scalability, and performance. AI-assisted … leveraged to boost productivity and quality across the team. Responsibilities Design and develop core backend systems including market connectivity, order routing, execution engine, risk, and position tracking. Implement ultra-low-latency and GC-free components using best practices in lock-free and off-heap programming. Apply event-driven and fully deterministic design principles to ensure traceable and predictable More ❯

Technology recruitment across the US, EMEA, and APAC. We partner with the most exclusive clients in the trading industry, who are pushing the boundaries of AI, machine learning, and low-latency systems, creating state of the art solutions and platforms. We're seeking a driven Graduate Technical Recruiter to join our team, focusing on C++, Python, Low Latency systems, and advanced AI/ML roles. Who You Are: Recent STEM or related field graduate with a strong interest in technical recruitment for Finance, Trading Technology, or FinTech Entrepreneurial mindset Eager to learn about recruiting for C++, Python, Low Latency systems, and Machine Learning candidates Adaptable and enthusiastic about fast-paced trading and technology … processes for outstanding recruitment experiences Contribute to DEIB initiatives in tech hiring Learn about market trends in Trading Technology and AI Stay updated on developments in C++, Python, and Low Latency systems Receive mentorship from our directors and senior consultants Benefits: Competitive base salary with commission structure Comprehensive training (1:1 mentorship) in Trading Technology and AI recruitment More ❯

Technology recruitment across the US, EMEA, and APAC. We partner with the most exclusive clients in the trading industry, who are pushing the boundaries of AI, machine learning, and low-latency systems, creating state of the art solutions and platforms. We're seeking a driven Graduate Technical Recruiter to join our team, focusing on C++, Python, Low Latency systems, and advanced AI/ML roles. Who You Are: Recent STEM or related field graduate with a strong interest in technical recruitment for Finance, Trading Technology, or FinTech Entrepreneurial mindset Eager to learn about recruiting for C++, Python, Low Latency systems, and Machine Learning candidates Adaptable and enthusiastic about fast-paced trading and technology … processes for outstanding recruitment experiences Contribute to DEIB initiatives in tech hiring Learn about market trends in Trading Technology and AI Stay updated on developments in C++, Python, and Low Latency systems Receive mentorship from our directors and senior consultants Benefits: Competitive base salary with commission structure Comprehensive training (1:1 mentorship) in Trading Technology and AI recruitment More ❯

network systems. In this role you will have the opportunity to work with cutting-edge technology and build strong relationships with technical experts. Specifically, you will: Design and architect low-latency trading networks using cutting-edge technology. Support existing solutions with a focus on automating and documenting tasks for handoff to the Network Operations team. Manage, communicate, and … on network infrastructure, including L1/L2/L3 switches, firewalls, DNS/DHCP, and cloud networking components. Build strong relationships with a highly technical client base, including operations, low-latency developers, and systematic trading experts. Automate processes to reduce manual work required by support teams using enterprise and open-source tools. Test and analyze vendor products for … our instrumentation and tooling to generate meaningful alerts and gather metadata on network behavior over time. What's required 8-10 years of experience with 3-5 experience in low latency networking Deep understanding of network systems/architectures at a detailed level with knowledge of fundamental configuration, troubleshooting, and monitoring. Excellent knowledge of low-latency More ❯

a product that will have a profound impact on the world of DeFi, underpinned by the financial strength and strategic direction of our organisation Key Responsibilities Build and optimize low-latency, high throughput APIs that abstract and simplify complex DeFi operations. Build real time risk management modules for perpetuals (perps), options, and binary products, covering margin calculations, collateral … reviews, share best practices, and mentor teammates. Knowledge & Experience Must have 5+ years of experience in a similar role and level. Proven track record building high performance, production grade, low latency systems or microservices in Go, C++, or equivalent systems-level language, with deep expertise in lock free data structures, and cache aware memory layouts. Familiarity with key … and running microservices in a production environment. Experience designing and managing relational databases (MySQL, PostgreSQL) and in-memory data stores (Redis), including schema design, indexing, and caching strategies for low-latency services. Experience with market data infrastructure and back testing frameworks : hands on building and operating real time data pipelines (Kafka/Redpanda, ClickHouse/InfluxDB) and authoring More ❯

Senior Rust Engineer - Low-Level Systems High-Performance Hybrid London I'm working with a leading financial technology organisation building ultra-low latency 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 ❯

Senior Rust Engineer - Low-Level Systems | High-Performance | Hybrid London I'm working with a leading financial technology organisation building ultra-low latency 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 ❯

Senior Rust Engineer - Low-Level Systems | High-Performance | Hybrid London I'm working with a leading financial technology organisation building ultra-low latency 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 ❯

On the Nadex exchange, we list innovative capped-risk derivatives contracts on a wide range of global financial markets. What You'll Do Develop, test, and maintain high-quality, low-latency Java applications handling millions of requests per day. Collaborate with cross-functional teams to design systems that meet business and regulatory requirements. Continuously improve system performance and … architecture, and design decisions. Participate in peer code reviews and design discussions. Must-Have Qualifications 5+ years of Java development experience. Strong focus on concurrency , garbage collection tuning, and low-level performance optimizations. Proficient in data structures and memory-efficient design patterns. Solid experience in low-latency trading systems , particularly in Order Management Systems (OMS) and Execution … Management Systems (EMS). Strong system design skills; capable of explaining full system workflows and identifying scalability bottlenecks. Skilled at recommending improvements to reduce latency and increase throughput. Experience with Spring Framework , and Java build tools (Gradle/Maven). Comfortable working in Linux environments and understanding of OS-level behavior. Effective communicator and a collaborative team player. Nice More ❯

Hedge Fund - Senior C++ Quant Developer - Equities - Linux - Python - Data/Algos/Low latency Hedge Fund background essential C++ (Version 11 upwards), Linux, Python (nice to have). Trading systems experience - ideally experience working in the equities space. Ideally the technical has experience with algo implementation. Quantitative Developer - Equities Technology We are in search of a Quantitative … Developer to join our team who is passionate about designing, architecting, and implementing low latency C++ systems that are not only robust, resilient, and accurate, but also exceptionally fast. Our team works directly with the firm's central trading teams. By constructing and maintaining this high-performance infrastructure used by these teams, this developer will enable new trading More ❯

Quant Analytics. ROLES AND RESPONSIBILITIES Real-time Derived Data and Analytics Work closely with portfolio managers and Quants to expand our derived data and analytics universe. Contribute to complex low latency Java codebase. Understand Quant library interface and work with Quants to validate deliverables. API Development for Analytics and Data: Work closely with portfolio managers and quant devs … system operations. Participate in code reviews and provide constructive feedback to ensure best practices. KEY REQUIREMENTS 3+ years of experience in backend development, with a focus on real time low latency systems. 3+ years of experience in Java. Strong problem-solving skills and attention to detail. Python experience desirable. Real-time software development, e.g. with eTrading background. Experience … with REDIS, Chronicle and other low latency middleware a plus. Experience with containerization and orchestration tools like Docker and Kubernetes. Experience with CI/CD pipelines and automated deployment processes. Experience with timeseries databases such as Snowflake and MongoDB desirable. Prior experience in finance and macro trading principles is highly desirable. Bachelor's or Master's degree in More ❯