24 of 24 FIX Protocol Jobs in the UK

Technical Account Manager, Equities & FX

Hiring Organisation
OneChronos
Location
City of London, London, United Kingdom
trading, technology, and regulation. What You’ll Do Client Support & Onboarding Manage new and existing clients with technical onboarding, account setup, certifications and FIX protocol connectivity, including network configuration and session management. Guide clients through onboarding and testing, ensuring adherence to MTF requirements and trading rules. Troubleshoot client … connectivity or trading issues (including FIX sessions, TCP/IP connectivity, firewall or routing matters), escalating to technology & engineering teams where necessary. Trading & Market Technical Operations Monitor live trading activity and platform performance, ensuring seamless execution for market Subscribers. Oversee market data integrity, trade lifecycle events, and system connectivity ...

Senior Java Developer

Hiring Organisation
Reed Technology
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£130000 - £150000/annum
Linux/UNIX operating systems Experience with real-time, mission-critical systems Familiarity with networking tools (e.g., Wireshark), Solace , and 10GbE multicast Knowledge of FIX protocol and other market connectivity standards Domain Knowledge Front-office experience in FX trading or quantitative finance Understanding of pricing algorithms , dynamic spreading ...

Senior Software Engineer - C++, Python - Financial/Banking

Hiring Organisation
N.P.A
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 100,000 - 140,000 Annual
excellent knowledge of Python - ideally coming from a Financial/Banking background with knowledge of Equities, Futures & Options and Fixed Income and Exchange Connectivity, Fix Protocol with some Low Latency experience. SKILLS DEPENDENT: There may be the opportunity to take on a Principal Engineers role depending on previous … GitHub. Python, including Pytest. Knowledge of capital markets exchange connectivity on stocks (Fixed Income and derivatives is a plus), including exchange protocols such as FIX and SBE. Most importantly, a drive to solve complex technological and trading challenges with a great team of talented developers. Comfortable using Agile methodology ...

Principal Java Developer

Hiring Organisation
Stott and May
Location
City of London, London, United Kingdom
with exposure to C++ Strong knowledge of multithreading and concurrency in high-frequency trading systems Experience implementing low-latency state machines Working knowledge of FIX protocol and binary market data protocols Strong experience working within Linux environments Proven track record building FX trading applications, particularly across FX Spot ...

Senior Software Engineer

Hiring Organisation
Templeton & Partners - Innovative & Inclusive Hiring Solutions
Location
London Area, United Kingdom
Connectivity • Write software that communicates with exchanges through their APIs, receiving market data and sending orders over the network in different protocols, such as FIX, Websocket or HTTP requests • Ensure quality of software based on a set of testing suites, which you are expected to use, maintain and extend ...

Senior Front Office Developer - Trading

Hiring Organisation
CMC Markets UK Plc
Location
City of London, London, United Kingdom
Employment Type
Permanent
latency financial systems. Deep understanding of performance optimisation, concurrency and JVM internals. Experience working on pricing, risk or electronic trading platforms. Knowledge of FIX protocol, order routing and broker connectivity highly beneficial. Strong mathematical and problem-solving mindset. Experience across asset classes such as FX, Equities, Commodities ...

Senior Low Latency Developer

Hiring Organisation
CMC Markets
Location
Greater London, England, United Kingdom
latency financial systems. Deep understanding of performance optimisation, concurrency and JVM internals. Experience working on pricing, risk or electronic trading platforms. Knowledge of FIX protocol, order routing and broker connectivity highly beneficial. Strong mathematical and problem-solving mindset. Experience across asset classes such as FX, Equities, Commodities ...

Senior Front Office Developer - Trading

Hiring Organisation
CMC Markets UK Plc
Location
City of London, London, United Kingdom
Employment Type
Permanent
maintain able and high-quality code. Someone who enjoys maths/logic problems and challenges Familiarity with electronic trading order routing, broker connectivity and FIX would be very beneficial Knows or willingness to learn scripting languages to aid rapid development Experience across one or more asset classes such ...

Java Engineer C++

Hiring Organisation
Stott & May Professional Search Limited
Location
London, United Kingdom
Employment Type
Contract
trading venues, impacting global financial markets. Required Skills: Strong Java and C++ development experience Low-latency programming, multithreading, and concurrency Knowledge of FX products, FIX protocol, and real-time trading systems Linux environment expertise Familiarity with CI/CD tools and application security Nice to Have: Financial regulation ...

Senior Software Engineer C++

Hiring Organisation
REC SOLUTIONS LIMITED
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Linux systems. Good understanding of modern development best practices and methodologies Python. Git. SQL. Knowledge of capital markets technologies, protocols, and standards such as FIX and SBE. Most importantly, a drive to solve complex technological and trading problematics with a great team of talented developers. Desired Skills/Experience ...

C++ Developer

Hiring Organisation
REC SOLUTIONS LIMITED
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
derivatives is a plus) Desired Skills/Experience Knowledge of capital markets exchange connectivity on fixed income and derivatives) Exchange protocols such as FIX and SBE. Some understanding and usage of cloud technology is a plus but not mandatory. ...

Software Engineer (C++)

Hiring Organisation
Certain Advantage
Location
South East London, London, United Kingdom
Employment Type
Temporary
Typescript Write software that communicates with exchanges through their APIs, receiving market data and sending orders over the network in different protocols, such as FIX, Websocket or HTTP requests Optimize exchange communication through kernel bypass, optimizing TLS or the connection handling to an exchange Implement trading algorithms based ...

Java Developer

Hiring Organisation
Hays
Location
City of London, London, United Kingdom
including lock‐free and low‐garbage techniques • Experience working with quant teams and implementing algorithmic models • Familiarity with messaging protocols such as Aeron, Kafka, FIX, SBE, ITCH, OUCH • Knowledge of time‐series databases (preferably KDB) and Python for analytics • Full‐stack experience (React) is beneficial for building trader tools ...

Senior Exchange Connectivity Engineer | Crypto

Hiring Organisation
Selby Jennings
Location
London Area, United Kingdom
their trading infrastructure, focusing on ultra-reliable, low-latency integrations with major crypto exchanges. Key Responsibilities Design and implement exchange connectivity modules (REST, WebSocket, FIX, proprietary APIs). Optimize order entry, market data ingestion, and account management for performance and reliability. Contribute to a fault-tolerant, scalable connectivity framework ...

Support Analyst

Hiring Organisation
Michael Page Finance
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£35,000 - £37,000 per annum
markets. They should be an effective communicator, self-motivated, and capable of working both independently and as part of a team. Prior experience with FIX Protocol is desired, along with the ability to explain technical concepts to a non-technical audience. Job Offer The successful Support Analyst candidate ...

Low Latency Engineer

Hiring Organisation
Harrington Starr
Location
City of London, London, United Kingdom
aspects of client deliveries Architecting performant, resilient distributed systems informed by deep domain knowledge Building solutions across OMS, EMS, Smart Order Routing, Matching Engines, FIX gateways and Risk platforms Working with event-driven architectures, replicated state machines and distributed consensus systems Applying best practices in separation of concerns, clean ...

Senior Data Modeller

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £88,000 per annum
working in Agile environments* Knowledge of UML, RDBMS, JSON/XML* Knowledge/experience of Erwin Desirable: * Knowledge of industry data standards (e.g. fpML, FIX, FIBO)* Experience with ontologies (RDF/OWL/TTL)* SQL and/or Python If interested please apply. To follow up on your application ...

Rust Developer

Hiring Organisation
Huxley Associates
Location
London, United Kingdom
Employment Type
Permanent
Salary
£130000 - £150000/annum
deployment pipelines, secrets management Nice to Have Front office trading environment (any asset class) - execution systems, market data infrastructure, or low-latency pricing engines FIX protocol, OMS/EMS connectivity, or direct exchange co-location experience SIMD, vectorisation, or GPU offloading for numerical workloads; eBPF for observability … pattern experience What We're Looking For You find the bottleneck before anyone reports it, understand it at the hardware level, and instrument the fix so the next problem surfaces in seconds. You write Rust other engineers learn from and care deeply. To find out more about Huxley, please ...

Rust Engineer

Hiring Organisation
Huxley Associates
Location
London, United Kingdom
Employment Type
Permanent
Salary
£150000 - £180000/annum
deployment pipelines, secrets management Nice to Have Front office trading environment (any asset class) - execution systems, market data infrastructure, or low-latency pricing engines FIX protocol, OMS/EMS connectivity, or direct exchange co-location experience SIMD, vectorisation, or GPU offloading for numerical workloads; eBPF for observability … pattern experience What We're Looking For You find the bottleneck before anyone reports it, understand it at the hardware level, and instrument the fix so the next problem surfaces in seconds. You write Rust other engineers learn from and care deeply whether a system is correct - not because ...

Customer Support Engineer

Hiring Organisation
Marlin Selection
Location
Belfast, County Antrim, Northern Ireland, United Kingdom
Employment Type
Permanent
expected, experience in any of the following areas would be a strong plus: Networking fundamentals Deployment management Foreign exchange (FX) markets Messaging protocols (particularly FIX ) Technical writing/documentation Why This Role Could Be a Great Fit This is a fantastic opportunity for someone who enjoys being close ...

Sr. Backend Architect (Rust)

Hiring Organisation
TechShack
Location
United Kingdom
familiarity with funding, liquidation flows, and margining models. Event-driven architectures (Kafka-style), Redis, distributed systems patterns, high-throughput data pipelines. Protocols/feeds: FIX, binary feeds, ITCH/OUCH, SBE/Aeron-style IPC, shared memory patterns. Systems optimisation: CPU pinning/affinity, NUMA, cache locality, IRQ/ ...

Contract Algo Trading Java Developer - eTrading, low latency, Java APIs, Multithreading, FIX

Hiring Organisation
Scope AT Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
Contract Algo Trading Java Developer - eTrading, low latency, Java APIs, Multithreading, FIX Our Investment Banking client is looking for an Algo trading Java developer to join the team to work on new initiatives and support for business critical algorithmic trading engines. The team provides innovative solutions for low touch … latency trading, which includes FIX connectivity, low latency market connectivity, smart order routing, algorithmic trading and internal crossing. The requirement is for a core Java developer. The team is working on a number of algorithmic engines that support benchmark algos, smart order routing and internal crossing. The main responsibilities ...

C++ Developer

Hiring Organisation
Caspian One
Location
Greater London, England, United Kingdom
17+ Designing and implementing low‐latency solutions across FX, equities, and expanding into futures and options Building connectivity and integrations for liquidity provider onboarding (FIX, market data, order routing) Contributing to the core migration effort modernising legacy trading architecture Working alongside specialists in low‐latency engineering, networking, and capital … background in capital markets — ideally FX, but cross‐asset experience also welcomed Solid understanding of trading system architecture , market data, execution flows Experience with FIX and LP integrations Ability to work in a high‐performance engineering culture alongside front‐office technology teams Nice to Have Buy‐side C++ experience ...

Java Developer – Market Connectivity

Hiring Organisation
Solytics Partners
Location
City of London, London, United Kingdom
solutions using TransFICC’s Unified API. Integrate and manage connectivity to electronic trading venues (e.g., Tradeweb, Bloomberg, MTS, BrokerTec, MarketAxess). Configure and support FIX, streaming, and venue-specific protocols, ensuring accurate and reliable messaging. Develop high-performance, scalable services using Core Java (8/11/17) . … Java, including concurrency, memory management, and GC tuning. Hands-on experience integrating and developing with TransFICC’s Connectivity Platform. Experience with electronic market protocols: FIX (4.x/5.x) Market-specific APIs (Tradeweb, Bloomberg, MTS, etc.) Binary/Streaming protocols (ITCH, FAST, SBE, JSON over TCP). Familiarity with ...