1 to 25 of 39 Permanent Low Latency Jobs in the City of London

Low Latency Java Engineer

Hiring Organisation
Harrington Starr
Location
City of London, London, United Kingdom
Low Latency Java Engineer London | Hybrid Electronic Trading/Distributed Systems/FinTech A leading global trading technology business is looking to hire a Low Latency Java Engineer to join a high-performing Core Trading team building the systems at the heart of a large-scale … electronic trading platform. This is a hands-on backend engineering role focused on developing low-latency, high-throughput distributed systems responsible for order execution, booking, valuation, and real-time risk management across multiple trading products. The environment is highly technical, fast-paced, and engineering-driven, with strong ownership ...

Electronic Trading Developer

Hiring Organisation
Harrington Starr
Location
City of London, London, United Kingdom
Senior Trading Systems Developer London | Hybrid Electronic Trading/Low Latency Infrastructure/Crypto Markets A leading global digital assets and trading technology business is looking to hire a Senior Trading Systems Developer to help build and optimise high-performance trading infrastructure supporting market making, OTC, systematic trading … electronic execution environments. This role sits at the intersection of low-latency software engineering and infrastructure optimisation, focused on maximising throughput, minimising latency, and delivering deterministic performance across critical trading workflows. The Role Design and develop low-latency trading systems supporting market data, execution ...

Senior Software Engineer C++

Hiring Organisation
REC SOLUTIONS LIMITED
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Senior Software Engineer C++ (Python, SQL, Linux, Trading, FinTech, Financial Technology, Low Latency, Backend) ***This is a hybrid role, 2 days remote and 3 days in the office*** Our client actively encourages diversity, equality and inclusion within its workforce and welcomes applications from a diverse background, REC Solutions … ideal place for you to develop your career. Benefits (not exhaustive list): Senior Software Engineer C++ (Python, SQL, Linux, Trading, FinTech, Financial Technology, Low Latency, Backend) Competitive salary 25 days annual leave - not including bank holiday Private medical insurance Flexible working hours Company pension Group Policies Life Assurance ...

Senior Java Software Engineer

Hiring Organisation
Artemis Talent Group Ltd
Location
City of London, London, United Kingdom
Senior Java Engineer – Low Latency Trading London/New York (Hybrid) Skills: Java, Java 23, Low Latency, Trading Platforms, Market Data, Aeron, Kafka, Chronicle, FIX Artemis Talent is partnering with a leading trading technology firm building high-performance, real-time trading systems used across global markets. … This is not standard backend engineering. You’ll be working on latency-sensitive infrastructure across order management, execution, and market data where performance and reliability are critical. The Role Design and build low-latency, high-throughput Java systems Optimise performance across latency, concurrency, and memory Contribute ...

Senior Java Software Engineer - Low Latency

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
13+ billion. For more information on how we process your personal data, please refer to HCLTech’ s Candidate Data Privacy Notice. Must Have – Java, Low-latency, financial services background, and hands on coding skills "Our app relies heavily on async development, we use vertex. it takes significant time … already have significant intuition with that, and some modern messaging like Aeron or ZeroMQ." DETAILED RESPONSIBILITIES- - Lead the development, testing, and maintenance of low-latency Java applications. - Collaborate with cross-functional teams to gather requirements and design system architecture. - Optimize application performance and troubleshoot latency issues. - Mentor ...

Low Latency Market Data Developer - C++

Hiring Organisation
Qube Research & Technologies
Location
City of London, London, United Kingdom
ambition to deliver high quality returns for our investors. The Tick Data Platform team is a new team building a market data architecture for low latency trading. The systems are being developed from the ground up and we’re looking for exceptional software engineers to join … high-performance C++23 Architectural contributions to newly designed systems Adding new exchanges to the platform Project leadership Working with developers and researchers across the low latency teams at QRT Your present skillset: 4 years of experience writing low latency/high-performance modern C++ Experience with ...

C++ Engineer - Quant Trading

Hiring Organisation
Bonhill Partners
Location
City of London, London, United Kingdom
investment firm seeking a highly skilled C++ Engineer to join their front-office trading technology team. This role will focus on building and enhancing low-latency trading infrastructure, market connectivity, and real-time market data systems that directly support trading and investment activities across global markets. This … quantitative research, and infrastructure teams. Responsibilities Design, develop, and maintain high-performance C++ applications supporting electronic trading and market data platforms. Build and support low-latency exchange connectivity and market access solutions across multiple venues and asset classes. Develop and optimise real-time market data systems, including feed ...

C++ Team Lead

Hiring Organisation
REC SOLUTIONS LIMITED
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
C++ Team Lead - (Principal, Python, SQL, Linux, Trading, FinTech, Financial Technology, Low Latency) ***This is a hybrid role, 3 days remote and 2 days in the office*** Our client actively encourages diversity, equality and inclusion within its workforce and welcomes applications from a diverse background, REC Solutions Limited … ideal place for you to develop your career. Benefits (not exhaustive list): Team LeadC++ (Principal, Python, SQL, Linux, Trading, FinTech, Financial Technology, Low Latency) Competitive salary 25 days annual leave - not including bank holiday Private medical insurance Flexible working hours Company pension Group Policies Life Assurance, Income Protection ...

Low Latency Engineer

Hiring Organisation
Harrington Starr
Location
City of London, London, United Kingdom
sits at the intersection of engineering excellence, client engagement, and strategic delivery — working hands-on in Java to design and build highly performant, resilient, low-latency trading platforms across OMS, EMS and exchange connectivity environments. What you’ll be doing Designing and delivering high-performance, low-latency … articulating technical risks clearly to leadership and clients What we’re looking for Strong Java engineering background with a focus on highly performant, low-latency systems Significant experience in capital markets technology environments Experience building solutions within: Order Management Systems (OMS) Execution Management Systems (EMS) Experience using Aeron ...

Solace Messaging Administrator

Hiring Organisation
Searchability (UK) Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
+ Bonus 4 days per week onsite in Canary Wharf Supporting critical enterprise Solace messaging systems Opportunity to work within a low latency, high throughput trading environment ABOUT THE CLIENT We're supporting a globally recognised financial services and technology organisation operating at the forefront of electronic trading … continued growth within their Messaging team, they're looking to appoint an experienced Solace Messaging Administrator to help support and optimise a critical low latency messaging environment. You'll be joining a highly technical, collaborative team responsible for delivering resilient, high throughput messaging systems that underpin pricing, trading ...

Software Engineer

Hiring Organisation
Pontoon Solutions
Location
City of London, London, United Kingdom
London/Hybrid Length: 12 month contract Role Summary We are seeking a software engineer specialising in distributed data systems to design and build lowlatency, high‐volume data processing solutions that underpin regulatory voice compliance assurance across the Bank’s strategic data platforms. This is a hands … where correctness, performance and reliability are non‐negotiable. What You’ll Be Building Distributed streaming and batch data processing systems for voice compliance assurance Lowlatency record matching and reconciliation engines handling billions of events Scalable data services operating across Spark, Kafka, Hive and Hadoop Production‐grade pipelines ...

C++ Software Engineer

Hiring Organisation
Durlston Partners
Location
City of London, London, United Kingdom
hybrid position, open to candidates based in London or has the right to work in London. You will be part of a highly collaborative, low-ego engineering culture that prioritises performance, innovation, and impact. Working alongside some of the brightest minds in quantitative trading and systems engineering, you will … build and optimise ultra-low latency, high-throughput systems that operate at scale. Key Responsibilities: Design and implement high-performance C++ systems for low-latency trading Optimise existing code for speed and reliability under production workloads Collaborate closely with traders, researchers, and fellow engineers to develop ...

C++ HFT Developer

Hiring Organisation
Harrington Starr
Location
City of London, London, United Kingdom
Software Engineer – Low Latency/Trading Systems London | Office-Based | Permanent A high-performing proprietary trading firm is looking to hire a Software Engineer to join its core engineering team building the systems that power live trading across global electronic markets. This is a strong opportunity … tuning and continuous platform improvement. What You’ll Be Doing Develop and maintain core trading systems used across multiple asset classes Build high-performance, low-latency software in a production trading environment Work closely with quantitative researchers to support research and execution tooling Design scalable and resilient systems ...

Principal Java Engineer

Hiring Organisation
RE Partners
Location
City of London, London, United Kingdom
their goals. Principal Java Engineer We are seeking an experienced and opinionated Principal Java Engineer to join our high-performing engineering team, working on low latency, high-throughput systems in the payments processing domain. This hybrid role is based in the UK or US and offers the opportunity … SpringBoot expertise, and thrive in a collaborative yet opinionated engineering culture, we want to hear from you. Key Responsibilities: Design, develop, and optimize low-latency, high-throughput backend systems using Java. Build and maintain RESTful APIs and microservices that power secure payment workflows. Work with messaging standards ...

Senior C# Developer (Contract) - Front Office Engineering | Hedge Fund

Hiring Organisation
Undisclosed
Location
City of London, London, United Kingdom
supporting all aspects of market data processing and trading activity. The environment is fast‐paced, collaborative, and highly technical, where code quality, performance, and lowlatency systems are top priorities. Engineers work across domains, contribute to architectural discussions, and help shape scalable, robust systems. We have partnered with … working in front‐office or trading‐technology environments, or on business‐critical systems Pragmatic, delivery‐focused mindset Commitment to high‐quality engineering practices and lowlatency, high‐performance systems Low‐ego, high‐performing self‐starter who values ownership, teamwork, and delivering commercial, pragmatic solutions As a long ...

Senior C# Developer - Head of Core Platform | Hedge Fund | London

Hiring Organisation
Undisclosed
Location
City of London, London, United Kingdom
supporting all aspects of market data processing and trading activity. The environment is fast‐paced, collaborative, and highly technical, where code quality, performance, and lowlatency systems are top priorities. Engineers work across domains, contribute to architectural discussions, and help shape scalable, robust systems. We have partnered with … critical systems Ability to lead by doing—hands‐on while guiding a team Pragmatic, delivery‐focused mindset Commitment to high‐quality engineering practices and lowlatency, high‐performance systems Low‐ego, high‐performing self‐starter who values ownership, teamwork, and delivering commercial, pragmatic solutions Why Apply This ...

C++ Software Engineer - Relocation to Amsterdam

Hiring Organisation
Elevate Partners
Location
City of London, London, United Kingdom
systems driving millions of trading decisions daily across global markets. The successful candidate will join a highly collaborative engineering environment focused on building ultra-low latency, high-performance systems that directly impact trading performance. The engineering team develops software operating within the latency-critical layer … data handling, trading algorithms, execution systems, and advanced hardware integrations. Key Responsibilities Design, develop, test, deploy, and maintain high-performance C++ applications within a low-latency trading environment Build scalable and reliable software solutions for trading, execution, and hardware development teams Work closely with traders, quantitative researchers ...

Trading Support Engineer - Ultra Low Latency Trading Platform - Up to £75k + Bonus

Hiring Organisation
Saragossa
Location
City of London, Greater London, UK
Trading Support Engineer - Ultra Low Latency Trading Platform - Up to £75k + Bonus Support the biggest names in FX and Equity trading on the fastest proprietary OTC trading platform in the world today. You'll directly interact with Traders to troubleshoot and provide immediate fixes to complex technical … Python to be able to automate trading workflows. AWS exposure would be nice, but none of the critical trading infra is hosted here for latency reasons. You'll need at least 1-2 years supporting live trading environments. If this is in the FX or Equities world, even better. ...

Market Access Developer (C++)

Hiring Organisation
NJF Global Holdings Ltd
Location
City of London, London, United Kingdom
financial markets. They are seeking a C++ Market Access Developer to join a world-class engineering team responsible for building and evolving ultra-low latency systems that power global trading connectivity. In this role, you will work on the core infrastructure that connects internal trading systems directly … scripting Proven experience designing multithreaded and/or distributed systems Hands-on experience with trading gateways or market data feed handlers Strong understanding of low-latency system design and optimisation techniques Experience working with production-grade, high-availability systems Strong debugging skills in complex real-time systems Experience ...

Payments Engineer

Hiring Organisation
Fynity
Location
City of London, London, United Kingdom
week onsite) Are you a senior/lead hands-on Engineer who thrives in Payments environments? Do you have a background in building low-latency, high-throughput distributed systems where correctness, resilience, and performance really matter? This is a great opportunity to work with some of the worlds … their high-performing engineering teams, building asynchronous, message-driven systems designed for scale, resilience, and near-zero downtime. Design and implement high-throughput, low-latency systems processing millions of real-time payment events Build event-driven architectures using modern Java and reactive frameworks Work extensively with non-blocking ...

Java Software Engineer

Hiring Organisation
Harrington Starr
Location
City of London, London, United Kingdom
working alongside a unique financial trading technology firm who are seeking 10+ Senior Java Developers to join their Core Development team and build out low latency systems. You absolutely have to have is a demonstrable interest in technology, precision, and technical excellence. Our client's mission is building … TDD. For the role of the Senior Java Engineer you will need the following skills: Strong knowledge of Core Java development, ideally in a low latency/real time environment Strong appreciation for all things TDD Join a team of phenomenally talented engineers who are passionate about ...

Senior Network Engineer - WAN + Automation : Trading Firm : CCDE/CCIE : £150-200k+

Hiring Organisation
Hunter Bond
Location
City of London, London, United Kingdom
Senior Network Engineer to work on it’s trading infrastructure. To apply, you will ideally be CCIE qualified with a strong background in low latency and multicast networks. Our client is a leading global market maker with an emphasis on technology to match. They seek an experienced profile … bleeding edge Cisco environment. What you'll be doing: Design, deploy and troubleshoot global network infrastructure Design industry leading networks Implement optimisations to build low latency network Work on network redesign, expansion and upgrade Support trading teams in relation to high frequency Automation, capacity planning and connectivity advancement ...

Java Developer Crypto Exchange Connectivity - Home Based

Hiring Organisation
VERTECH GROUP (UK) LTD
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 100,000 Annual
Java Developer Crypto Exchange Connectivity (Low Latency) Location: Home Based/1-2 days per month in London Salary: Circa £180,000 £200,000 + bonus + benefits Java Developer required for a small trading technology firm focused on crypto markets, working directly on exchange connectivity and lowlatency trading systems Youll be working directly on live trading systems, solving real-world problems a click apply for full job details ...

Lead Software Engineer

Hiring Organisation
Understanding Recruitment
Location
City Of London, England, United Kingdom
Lead Rust Engineer Up to 120,000/130,000 London Low Latency | Async Rust | Tokio Drones We have a new and exclusive partnership with one of the most exciting scale-ups in Europe, who are looking to double in size their engineering team. They have a valuation … such as C, C++, or Core Java. Candidates from functional backgrounds such as Scala, Erlang or Clojure are also encouraged to apply. Experience developing low-latency, high throughput systems. Nice to have: Experience working with drones or robotics experience working with microcontrollers ...

Senior Software Engineer / Principal Software Engineer - C++, Python

Hiring Organisation
N P Associates
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£100,000 - £140,000 per annum
Futures & Options and Fixed Income and Exchange Connectivity. Job Overview You will work with the Product, Infrastructure and QA teams, to produce high performance, low latency and highly reliable code. Your goal will be to develop software which handle large amount of TPS to drive a highly efficient ...