1 to 25 of 315 Permanent Low Latency Jobs in London

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 ❯

Hawksworth are now recruiting for a Senior Java Developer with extensive experience with Front Office Algo Trading projects. The job: IT Low Latency Java Developer 1 year contract with potential for extensions Inside IR35 Rate £920 per day to the Umbrella Company London Liverpool St location Hybrid working (x3 days on site x2 days working from home pw … This is a IT Low-Latency, Java Developer position working for the e-FX Desk where the team develops the pricing, hedging and low-latency order and price distribution team systems. We need someone for this role role that has strong low latency , Java , Algo development experience. Someone who can show optimizing/low latency tuning and someone who has achieved low latency in the microseconds. EFX would be nice but we can accept other other asset classes experience. What you will need: Tenure as a Senior Java Developer Significant Trading projects experience/Front office experience Algo trading Worked with Connectivity, Market Data, Core Pricing and Hedging strategy. Multithreading More ❯

Hawksworth are now recruiting for a Senior Java Developer with extensive experience with Front Office Algo Trading projects. The job: IT Low Latency Java Developer 1 year contract with potential for extensions Inside IR35 Rate £920 per day to the Umbrella Company London Liverpool St location Hybrid working (x3 days on site x2 days working from home pw … This is a IT Low-Latency, Java Developer position working for the e-FX Desk where the team develops the pricing, hedging and low-latency order and price distribution team systems. We need someone for this role role that has strong low latency , Java , Algo development experience. Someone who can show optimizing/low latency tuning and someone who has achieved low latency in the microseconds. EFX would be nice but we can accept other other asset classes experience. What you will need: Tenure as a Senior Java Developer Significant Trading projects experience/Front office experience Algo trading Worked with Connectivity, Market Data, Core Pricing and Hedging strategy. Multithreading More ❯

We have a new Contract Senior Java Developer position available with a European Investment Bank, to work on e-FX Front-Office Algo Trading projects. This is a Low Latency, Java, Algo, FX, multithreading developer role (not really web). London based, Hybrid working. 12 months initial assignment. The job: IT Low Latency e-FX Java … per day to the Umbrella Company London Liverpool St location Hybrid working (x3 days on site x2 days working from home pw) This is an e-FX IT Low Latency Java Developer position working for the e-FX Desk where the team develops the pricing, hedging and low latency order and price distribution team systems. Regards … to Low Latency development, we need specific experience achieving low latency in the microseconds, and have practical experience on not just software but an appreciation of hardware the software runs as well. We need someone who can show optimizing and tuning on Low Latency. What you will need: Tenure as a Senior Java Developer Significant More ❯

We have a new Contract Senior Java Developer position available with a European Investment Bank, to work on e-FX Front-Office Algo Trading projects. This is a Low Latency, Java, Algo, FX, multithreading developer role (not really web). London based, Hybrid working. 12 months initial assignment. The job: IT Low Latency e-FX Java … per day to the Umbrella Company London Liverpool St location Hybrid working (x3 days on site x2 days working from home pw) This is an e-FX IT Low Latency Java Developer position working for the e-FX Desk where the team develops the pricing, hedging and low latency order and price distribution team systems. Regards … to Low Latency development, we need specific experience achieving low latency in the microseconds, and have practical experience on not just software but an appreciation of hardware the software runs as well. We need someone who can show optimizing and tuning on Low Latency. What you will need: Tenure as a Senior Java Developer Significant More ❯

Senior C++ Developer – Low-Latency Systems Location: London, UK Reports to: Chief Technology Officer (CTO) Company: [Confidential – Global FinTech/Trading Technology Firm] About the Company Our client is a leading provider of advanced technology, liquidity, and execution services within global financial markets. The firm delivers high-performance, low-latency trading infrastructure to institutional clients worldwide … performance trading and pricing systems. Reporting directly to the CTO, you will play a key role in defining the architecture, performance, and reliability of the firm’s next-generation low-latency trading platform. You will collaborate closely with senior developers, architects, and business stakeholders to ensure systems operate at microsecond-level performance with exceptional scalability and stability in … demanding market conditions. Key Responsibilities Design, develop, and maintain high-performance C++ applications for real-time market data processing, pricing, and trade execution. Optimise existing codebases for latency, throughput, and reliability. Contribute to the architecture and design of new low-latency components and APIs. Collaborate with senior engineering leadership on technical strategy and system design. Profile, benchmark More ❯

Senior C++ Developer – Low-Latency Systems Location: London, UK Reports to: Chief Technology Officer (CTO) Company: [Confidential – Global FinTech/Trading Technology Firm] About the Company Our client is a leading provider of advanced technology, liquidity, and execution services within global financial markets. The firm delivers high-performance, low-latency trading infrastructure to institutional clients worldwide … performance trading and pricing systems. Reporting directly to the CTO, you will play a key role in defining the architecture, performance, and reliability of the firm’s next-generation low-latency trading platform. You will collaborate closely with senior developers, architects, and business stakeholders to ensure systems operate at microsecond-level performance with exceptional scalability and stability in … demanding market conditions. Key Responsibilities Design, develop, and maintain high-performance C++ applications for real-time market data processing, pricing, and trade execution. Optimise existing codebases for latency, throughput, and reliability. Contribute to the architecture and design of new low-latency components and APIs. Collaborate with senior engineering leadership on technical strategy and system design. Profile, benchmark More ❯

and technology, focused on delivering high-performance Java systems for pricing and electronic execution across the bank's global Rates business. The Role You will design, build, and optimise low-latency Java components supporting real-time pricing, algorithmic execution, and market connectivity . Working closely with quants and traders , you'll transform quantitative models and execution logic into … robust, production-grade trading applications. The role requires deep technical expertise and an interest in market microstructure and electronic execution dynamics. Key Responsibilities Engineer low-latency, multithreaded Java applications powering Rates pricing and execution. Partner with quants to integrate and enhance pricing models and execution algorithms . Develop and tune smart order routers, auto-quoting, and market-making … components. Profile and optimise Java systems for throughput, GC efficiency, and predictable latency . Implement real-time monitoring, logging, and performance diagnostics . Collaborate across technology and trading teams to continuously refine execution performance and market response . Candidate Profile Degree in Computer Science, Engineering, Mathematics , or a related quantitative field. 10+ years' experience in Java development for low More ❯

Senior Java Developer | Low Latency | London Our client is a specialist engineering consultancy known for solving some of the most demanding performance challenges across financial markets and technology. Their teams design, build, and optimise high-throughput, low-latency systems used by global institutions where reliability and speed are critical. They are now looking for exceptional Java … Engineers with proven experience in building high-performance, low-latency systems . This role involves working on complex, business-critical projects where every microsecond matters . You’ll join a highly technical team known for solving tough engineering challenges and delivering efficient, elegant solutions across banking, trading, and financial technology environments. 📍Location : Primarily Remote, with travel to London … ideas and innovations to improve architecture and speed. Quantify and document measurable performance improvements. Requirements : Degree-level education (or equivalent experience). A strong and proven track record developing low-latency, high-throughput systems on JVM. Understanding of JVM internals (GC, threading, concurrency, locking). Commercial experience with high-performance Java systems . Ability to communicate effectively with More ❯

Senior Java Developer | Low Latency | London Our client is a specialist engineering consultancy known for solving some of the most demanding performance challenges across financial markets and technology. Their teams design, build, and optimise high-throughput, low-latency systems used by global institutions where reliability and speed are critical. They are now looking for exceptional Java … Engineers with proven experience in building high-performance, low-latency systems . This role involves working on complex, business-critical projects where every microsecond matters . You’ll join a highly technical team known for solving tough engineering challenges and delivering efficient, elegant solutions across banking, trading, and financial technology environments. 📍Location : Primarily Remote, with travel to London … ideas and innovations to improve architecture and speed. Quantify and document measurable performance improvements. Requirements : Degree-level education (or equivalent experience). A strong and proven track record developing low-latency, high-throughput systems on JVM. Understanding of JVM internals (GC, threading, concurrency, locking). Commercial experience with high-performance Java systems . Ability to communicate effectively with More ❯

Java Developer – FX Low Latency Market Making A leading hedge fund with a global presence, specialising in quantitative trading and market making across multiple asset classes is seeking a highly skilled Senior Java Developer to join their rapidly expanding FX business to help design and build ultra-low-latency trading systems that power their electronic market … and infrastructure teams to deliver software that operates at microsecond latencies, scales globally, and directly contributes to our competitive edge in the markets. Key Responsibilities Design, develop, and maintain low-latency, high-throughput trading platforms in Java. Collaborate with quants and traders to translate market making strategies into robust, production-ready code. Optimise code and infrastructure for latency … time-to-market is critical. Skills & Experience Required Expert-level Java development skills with deep knowledge of concurrency, memory management, and the JVM internals. 5+ years of experience building low-latency trading systems (preferably FX, but other asset classes welcome). Proven track record of optimising systems at the microsecond level. Strong knowledge of networking (UDP/TCP More ❯

Java Developer – FX Low Latency Market Making A leading hedge fund with a global presence, specialising in quantitative trading and market making across multiple asset classes is seeking a highly skilled Senior Java Developer to join their rapidly expanding FX business to help design and build ultra-low-latency trading systems that power their electronic market … and infrastructure teams to deliver software that operates at microsecond latencies, scales globally, and directly contributes to our competitive edge in the markets. Key Responsibilities Design, develop, and maintain low-latency, high-throughput trading platforms in Java. Collaborate with quants and traders to translate market making strategies into robust, production-ready code. Optimise code and infrastructure for latency … time-to-market is critical. Skills & Experience Required Expert-level Java development skills with deep knowledge of concurrency, memory management, and the JVM internals. 5+ years of experience building low-latency trading systems (preferably FX, but other asset classes welcome). Proven track record of optimising systems at the microsecond level. Strong knowledge of networking (UDP/TCP More ❯

C++ Developer – Ultra-Low-Latency Systems 📍 Location: London (Hybrid) 💷 Compensation: Up to £180,000 + Bonus + Benefits 💻 Experience: 1+ Year(s) 🚀 The Opportunity Are you passionate about speed, precision, and systems-level engineering ? Join a leading buy-side firm as a C++ Engineer , building ultra-low-latency trading platforms that operate at the microsecond scale … bleeding edge of technology, tackling complex challenges across live trading systems that demand maximum performance, reliability, and scalability. 🔧 What You’ll Be Working On 🛠 Designing and optimizing ultra-fast, low-latency trading infrastructure 🧬 Fine-tuning performance at the CPU, cache, and memory levels 📈 Engineering high-performance data structures and algorithms 🧩 Diagnosing and resolving bottlenecks throughout the software and … with a performance-first mindset 🧠 Deep understanding of computer architecture , CPU internals, and memory hierarchy 🔄 Hands-on experience with multi-threading, concurrency , and scalable system design ⚙️ Background in low-latency, real-time, or trading systems is a strong plus 🌟 Why Join 🎯 Immediate Impact: Your code directly drives global trading performance 🧪 Innovation-Driven Environment: Work on advanced optimization and More ❯

Senior Technical Business Analyst - Financial Banking Candidates will come from highly technical background with a track record of delivering complex, low-level code systems (e.g. C++, Java), with strong knowledge of performance optimisation and latency management along with Networking (TCP, UDP, multicast) and low latency data distribution. Ideally these skills will have been gained in a … Low Latency Financial/Banking/Trading arena with some business knowledge (Equities, Fixed Income, Futures & Options) but candidates from other domains such as Streaming, Telecoms, Defence and Gaming, where latency is a priority will also be considered. Responsibilities and Duties Requirements gathering - Work closely with other product managers, developers and architects to translate business needs into … relationships (both internal and external) at all levels. The appetite and ability to learn in the role is a must. Essential Proven track record of specifying and delivering complex, low-level code systems (e.g. C++, Java), with strong knowledge of performance optimisation, latency management, concurrency, and integration considerations. Strong knowledge of networking principles (TCP, UDP, multicast) and experience More ❯

Ultra-Low Latency C++ Engineer | High-Frequency Trading Salary: £150k-£225k Total compensation: £250k-500k depending on performance and seniority A leading quant/systematic trading firm have multiple headcount for Ultra-Low Latency C++ Engineers to join their High-Frequency Trading team in London. The teams focus is building ultra-low-latency systems … operating at global scale. They're seeking experienced C++ engineers passionate about performance optimization and elegant system design where nanoseconds matter! What You'll Do: Design and optimize latency-critical C++ systems across trading, market data, and infrastructure components Performance engineering at every layer: CPU, cache, memory, and network Profile, benchmark, and fine-tune system behaviour under real-world … conditions Collaborate with hardware and FPGA engineers on end-to-end architecture design Kernel-level optimization and low-level systems tuning Required: 5+ years developing performance-critical C++ applications (modern C++ standards) Strong systems programming and low-level understanding Expertise in Linux internals, kernel tuning, and low-level profiling tools Genuine curiosity about hardware behaviour, networking, and More ❯

Ultra-Low Latency C++ Engineer | High-Frequency Trading Salary: £150k-£225k Total compensation: £250k-500k depending on performance and seniority A leading quant/systematic trading firm have multiple headcount for Ultra-Low Latency C++ Engineers to join their High-Frequency Trading team in London. The teams focus is building ultra-low-latency systems … operating at global scale. They're seeking experienced C++ engineers passionate about performance optimization and elegant system design where nanoseconds matter! What You'll Do: Design and optimize latency-critical C++ systems across trading, market data, and infrastructure components Performance engineering at every layer: CPU, cache, memory, and network Profile, benchmark, and fine-tune system behaviour under real-world … conditions Collaborate with hardware and FPGA engineers on end-to-end architecture design Kernel-level optimization and low-level systems tuning Required: 5+ years developing performance-critical C++ applications (modern C++ standards) Strong systems programming and low-level understanding Expertise in Linux internals, kernel tuning, and low-level profiling tools Genuine curiosity about hardware behaviour, networking, and More ❯

eFX Software Engineer (Ultra-Low Latency Java) Hybrid/Remote - London Up to £160,000 + Bonus + Benefits We're supporting a major financial services organisation hiring an eFX Software Engineer to build and optimise ultra-low-latency trading systems used across global FX markets. If you're a high-performance Java engineer who loves … solving complex technical challenges at scale, this is a standout opportunity. What you'll work on: Engineering sub-40μs latency eFX systems with high throughput and fault tolerance Designing real-time pricing, risk and trading components Evolving low-latency Java patterns (lock-free, low-GC, CPU/cache optimisation) Working closely with quants, traders, architects and … senior engineers Influencing technical strategy across distributed, performance-critical systems What we're looking for: Strong experience in low-latency Java within trading, eFX or electronic markets Deep understanding of networking (TCP/UDP/FIX), Linux tuning, performance profiling Background in designing high-performance architectures and distributed systems Strong grasp of FX pricing, risk, and trading workflows More ❯

Location: London, UK Domain Focus: High-Frequency Trading (HFT), Ultra-Low Latency Trading Systems Experience: 4+ years in C++ development in a low-latency/HFT environment. International Talent: Yes, international applicants are encouraged. Can your C++ expertise engineer the next wave of ultra-low latency performance across global markets? We’re exploring opportunities … developers to architect and optimise performance-critical C++ systems for high-frequency trading in a global financial centre. Career Path, Projects And Performance: Consistent track record of reducing system latency on performance-critical components in a high-frequency trading environment. Successful design and deployment of multi-threaded, distributed trading infrastructure with an emphasis on system reliability and resilience. Quantifiable … achievements in optimising kernel-level performance and efficient resource management for low-latency execution. Proven history of collaborating with global research and trading teams to enable and accelerate new alpha-generating strategies. Professional And Technical Prowess: Expertise in modern C++ (17/20), with deep knowledge of low-level memory and CPU optimisation techniques. Profound understanding of More ❯

C++ Low Latency Developer | Buy-Side | Relocation to APAC - Singapore/HK A leading buy-side firm is seeking a C++ Low Latency Developer to join its fast-paced trading environment. The ideal candidate will have strong experience developing high-performance systems within financial markets and a passion for optimization and low-level engineering. Key … Responsibilities Design, develop, and optimize low-latency C++ systems for trading applications. Collaborate with quantitative and infrastructure teams to improve performance and stability. Contribute to system architecture and scalability across global trading platforms. Maintain high coding standards, ensuring reliability and speed in production systems. Requirements 3+ years of professional experience in C++ development. Proven background in low-latency systems within financial services. Deep understanding of data structures, algorithms, and performance tuning. Experience in multi-threading, network programming, and Linux environments. Excellent problem-solving skills and attention to detail. Open to relocation to APAC (support provided for candidates from Europe/UK ). If you are interested in this exciting opportunity or would like to explore More ❯

Scratch : You’ll have the autonomy to create an entire trading platform from the ground up, leveraging the firm’s core infrastructure while optimizing system performance for high-frequency, low-latency trading. Work with a Humble Leader : You’ll work closely with a brilliant PM who has a strong technical background (from reinforcement learning strategies to low-latency C++ coding) and a pragmatic, collaborative approach. This is someone who’s not only mastered complex trading strategies but is also focused on building a team that thrives on open communication and shared success. Exciting, Startup Vibe – Without the Risk : This is a rare blend of startup excitement backed by the stability of a firm with a … long track record of success in the global trading space. With multiple established offices around the world, the firm is known for its cutting-edge technology and a low attrition rate . No Tech Tests – Just Real Conversations : The process is designed to be a two-way street, with no leetcodes or timed tests. You’ll start with an More ❯

Scratch : You’ll have the autonomy to create an entire trading platform from the ground up, leveraging the firm’s core infrastructure while optimizing system performance for high-frequency, low-latency trading. Work with a Humble Leader : You’ll work closely with a brilliant PM who has a strong technical background (from reinforcement learning strategies to low-latency C++ coding) and a pragmatic, collaborative approach. This is someone who’s not only mastered complex trading strategies but is also focused on building a team that thrives on open communication and shared success. Exciting, Startup Vibe – Without the Risk : This is a rare blend of startup excitement backed by the stability of a firm with a … long track record of success in the global trading space. With multiple established offices around the world, the firm is known for its cutting-edge technology and a low attrition rate . No Tech Tests – Just Real Conversations : The process is designed to be a two-way street, with no leetcodes or timed tests. You’ll start with an More ❯

technologists delivering cutting-edge solutions across FX Spot, Forwards, and Pricing, with exposure to Rates and Cross-Asset projects further down the line. Key Responsibilities Design and develop ultra-low latency Java systems for electronic FX trading. Work closely with traders and quants to deliver performant pricing and hedging solutions. Lead components of system re-architecture and optimisation … network to JVM tuning. Contribute to a high-performing, globally distributed engineering team. Technical Environment Core Java, Aeron, lock-free/concurrent programming High-performance messaging, distributed systems, and low-latency design Real-time pricing, RFQ, and automated hedging systems What We’re Looking For Proven experience designing or building low-latency trading systems (FX or More ❯

technologists delivering cutting-edge solutions across FX Spot, Forwards, and Pricing, with exposure to Rates and Cross-Asset projects further down the line. Key Responsibilities Design and develop ultra-low latency Java systems for electronic FX trading. Work closely with traders and quants to deliver performant pricing and hedging solutions. Lead components of system re-architecture and optimisation … network to JVM tuning. Contribute to a high-performing, globally distributed engineering team. Technical Environment Core Java, Aeron, lock-free/concurrent programming High-performance messaging, distributed systems, and low-latency design Real-time pricing, RFQ, and automated hedging systems What We’re Looking For Proven experience designing or building low-latency trading systems (FX or More ❯

Engineer – Market Connectivity You have strong core Java development with market connectivity experience You have strong experience with multi-threading, messaging & ZeroGC techniques You have experience of working on low latency trading systems You have good working knowledge of Bash Scripting & Linux You follow TDD/BDD and value the benefits of testing You know what good code … Science preferred or any STEM Minimum Java experience: 10 years Preferred Skills: TransFICC Experience, highly desirable Hot Code path optimization, Off-heap memory management techniques JVM internals, tuning for low-latency Low-latency messaging & data structures, network protocols, network I/O in Java LMAX Disruptor, Multi-Reactor, Chronicle Queue/Map, Aeron/Agrona or More ❯

Engineer – Market Connectivity You have strong core Java development with market connectivity experience You have strong experience with multi-threading, messaging & ZeroGC techniques You have experience of working on low latency trading systems You have good working knowledge of Bash Scripting & Linux You follow TDD/BDD and value the benefits of testing You know what good code … Science preferred or any STEM Minimum Java experience: 10 years Preferred Skills: TransFICC Experience, highly desirable Hot Code path optimization, Off-heap memory management techniques JVM internals, tuning for low-latency Low-latency messaging & data structures, network protocols, network I/O in Java LMAX Disruptor, Multi-Reactor, Chronicle Queue/Map, Aeron/Agrona or More ❯