Inside IR35 Central London - Hybrid - 3 days on site, 2 days remote 12 months Brief Our client is seeking a Low Latency Java Developer with hands-on experience in FIXprotocol integration to join their FX Options technology team. You will play a hands-on role in modernising and optimising the trading platform , delivering ultra-low latency solutions … for front-office trading and risk management. Key Responsibilities Develop, optimise, and maintain low latency Java-based trading systems Implement and maintain FIXprotocol connectivity for FX Options trading Work closely with Quants, Traders, and Risk teams to translate business requirements into high-performance solutions Take ownership of the end-to-end performance of the platform , including debugging … Developer in front-office or trading environments Strong Java Core , multi-threading , and concurrent programming experience Proven experience with low latency system design and optimisation Hands-on experience with FIXprotocol integration Solid business knowledge of FX Options trading workflows Excellent stakeholder management and communication skills Resilient, proactive, and comfortable working in a fast-paced trading environment Modis More ❯
Inside IR35 Central London - Hybrid - 3 days on site, 2 days remote 12 months Brief Our client is seeking a Low Latency Java Developer with hands-on experience in FIXprotocol integration to join their FX Options technology team. You will play a hands-on role in modernising and optimising the trading platform , delivering ultra-low latency solutions … for front-office trading and risk management. Key Responsibilities Develop, optimise, and maintain low latency Java-based trading systems Implement and maintain FIXprotocol connectivity for FX Options trading Work closely with Quants, Traders, and Risk teams to translate business requirements into high-performance solutions Take ownership of the end-to-end performance of the platform , including debugging … Developer in front-office or trading environments Strong Java Core , multi-threading , and concurrent programming experience Proven experience with low latency system design and optimisation Hands-on experience with FIXprotocol integration Solid business knowledge of FX Options trading workflows Excellent stakeholder management and communication skills Resilient, proactive, and comfortable working in a fast-paced trading environment Modis More ❯
Algo/DMA electronic markets infrastructure across global venues. Key Responsibilities Provide front office aligned production support for DMA and algorithmic trading platforms. Troubleshoot and resolve issues related to FIXprotocol connectivity, order routing, drop copy, and post-trade workflows . Monitor order flow for rejects and failures , proactively identifying and resolving issues. Support and monitor market data … reconciliations. Leverage observability and monitoring tools (Grafana, Splunk, OpenText/SiteScope/OBM) for proactive issue detection and notifications. Work with vendors on production support for OMS/EMS, FIX mapping/routing, market data, and execution connectivity . Able to take lead in incident root cause analysis and drive long-term stability improvements. Participate in change and release … rollouts. Contribute to Business Continuity Planning (BCP) by taking part in Disaster Recovery (DR) tests and industry-wide SIFMA BCP exercises . Required Skills & Qualifications Strong knowledge of the FIXprotocol and order lifecycle (equities/Fixed Income/FX). Experience in front-office trading support , with direct interaction with traders/sales. Strong background with EMS More ❯
scalability in trade execution. Key Responsibilities Lead design, development, and deployment of the OMS-Fidessa EMS integration, covering order entry, execution feedback, and trade allocation workflows. Define and implement FIXprotocol connectivity, including session setup, drop copy feeds, execution reports, and order routing. Work closely with Fidessa technical teams to establish robust API, feed, and service-level integrations … trade life cycle, including order creation, execution capture, allocations, trade booking, and regulatory reporting. Knowledge of pre-trade risk controls, position keeping, and market data dependencies. Required Skillset Extensive FIXprotocol experience, including versions 4.2, 4.4 and 5.0 Hands-on experience configuring Fidessa EMS integrations - order flows and drop copy feeds. Hands-on experience managing EMS Routing rules More ❯
Strong background in cloud-based business analysis (IaaS, SaaS, PaaS, Enterprise). Familiarity with modern tech stacks including AWS , Java, and/or C++ . Electronic Trading - Market Data - FIXProtocol - ITCH - FIX Connectivity - Exchange Connectivity - Latency improvement - Networking - highly desirable. Excellent analytical, communication, and st,akeholder management skills. 🌍 Why Join? You’ll be part of a More ❯
good knowledge of Git/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, including continuous integration, sprints, Jira More ❯
good knowledge of Git/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, including Continuous Integration, Sprints, Jira More ❯
with TypeScript, React, and SASS/SCSS is a plus. Understanding of financial derivatives , including volatility modelling and stochastic calculus , is beneficial. Knowledge of networking protocols (TCP/IP, FIX, multicast/unicast, ZeroMQ/RabbitMQ) advantageous. Excellent communication skills, with a collaborative and results-driven mindset . This is a fantastic opportunity for a Front Office Developer seeking More ❯
with TypeScript, React, and SASS/SCSS is a plus. Understanding of financial derivatives , including volatility modelling and stochastic calculus , is beneficial. Knowledge of networking protocols (TCP/IP, FIX, multicast/unicast, ZeroMQ/RabbitMQ) advantageous. Excellent communication skills, with a collaborative and results-driven mindset . This is a fantastic opportunity for a Front Office Developer seeking More ❯
Java , C# , or Python . Experience with FX trading systems , ideally in investment banking or financial services. Solid understanding of trade lifecycle , pricing , and risk management . Familiarity with FIXprotocol , MQ messaging , and RESTful APIs . Experience with SQL databases and data modelling. Knowledge of DevOps practices , CI/CD pipelines, and version control tools (e.g., Git More ❯
Java , C# , or Python . Experience with FX trading systems , ideally in investment banking or financial services. Solid understanding of trade lifecycle , pricing , and risk management . Familiarity with FIXprotocol , MQ messaging , and RESTful APIs . Experience with SQL databases and data modelling. Knowledge of DevOps practices , CI/CD pipelines, and version control tools (e.g., Git More ❯
databases and SQL ISEB/ISTQB Foundation Certified Business knowledge of Front, Middle and or Back Office systems Finance Market Regulations and Reporting Rules Knowledge and understanding of the FIXprotocol Experience in Derivatives, Asset Management, Bonds More ❯
Doesn’t’ have to be all three) · Strong UNIX/Linux experience · Knowledge of common scripting languages and ability to automate common processes, and interact with existing frameworks · Strong FIX experience – other messaging protocols useful · Understanding of STP trade flows · Good understanding of Network Connectivity Advantageous Experience: · Familiar with the Elastic Stack (Elasticsearch/Kibana/Logstash) · Familiar with More ❯
maintenance of automated testing frameworks • Solid understanding of back-end and front-end technologies (HTML, CSS, JavaScript) • In-depth knowledge of equities or equity derivatives, and trading workflows (including FIXprotocol) • Direct collaboration with trading desks and business users • Bachelor's/master's degree in computer science or related field • 5+ years of Java development experience, ideally More ❯
of a financial application is a huge plus. Experience developing applications for the financial markets is highly desirable (Fixed Income, Trading, FX, Risk, Portfolio/Wealth Management, Market Data, FIX etc.) Technical experience includes: Extensive Java n-tier application experience Hands-on experience with web services Strong SQL skills with considerable experience in Oracle or SQL Server Knowledge of More ❯
City of London, London, United Kingdom Hybrid / WFH Options
LevelUP HCS
Skilled in writing complex SQL queries Familiarity with Fidessa Equities platforms (ETP/CTAC) is advantageous Experience with Unix/Linux command-line and basic scripting preferred Understanding of FIXprotocol is beneficial Background in third-line support for equity trading systems is desirable Additional Skills Excellent communication skills, suited for front-office and client-facing interactions Ability More ❯
Skilled in writing complex SQL queries Familiarity with Fidessa Equities platforms (ETP/CTAC) is advantageous Experience with Unix/Linux command-line and basic scripting preferred Understanding of FIXprotocol is beneficial Background in third-line support for equity trading systems is desirable Additional Skills Excellent communication skills, suited for front-office and client-facing interactions Ability More ❯
systems such as Fidessa/Raptor/TMS. Location - London Salary - c£100,000 + Bonus + Bens Key skills: Experience working as a Cash Equities Trading Support Analyst FIX SQL Windows Linux Fidessa or Raptor or TMS or similar Desirable SQL Java Python Responsibilities: Support as part of a global technical team which covers Front office, Middle office More ❯
years' experience in Java development for low-latency or electronic trading systems. Deep expertise in Java concurrency, GC tuning, memory management, and NIO . Strong grasp of market microstructure , FIX protocols , and order handling . Proven record of delivering production-grade Java trading platforms in front-office environments. Experience in Rates eTrading (cash or derivatives) strongly preferred although open More ❯
years' experience in Java development for low-latency or electronic trading systems. Deep expertise in Java concurrency, GC tuning, memory management, and NIO . Strong grasp of market microstructure , FIX protocols , and order handling . Proven record of delivering production-grade Java trading platforms in front-office environments. Experience in Rates eTrading (cash or derivatives) strongly preferred although open More ❯
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, multicast, FIX, binary protocols). Familiarity with Linux, kernel-level tuning, and performance profiling. Experience with market data handling and order execution in electronic trading. Excellent problem-solving skills and ability More ❯
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, multicast, FIX, binary protocols). Familiarity with Linux, kernel-level tuning, and performance profiling. Experience with market data handling and order execution in electronic trading. Excellent problem-solving skills and ability More ❯
skills in Python, C/C++, SQL, and/or C# Solid experience with Linux OS Bonus: familiarity with React, SASS/SCSS, or networking protocols (TCP/IP, FIX, ZeroMQ, etc.) A collaborative, analytical, and solutions-driven mindset What's in It for You High annual bonus potential Excellent pension scheme Private medical care Gym membership and wellbeing More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Robert Half
skills in Python, C/C++, SQL, and/or C# Solid experience with Linux OS Bonus: familiarity with React, SASS/SCSS, or networking protocols (TCP/IP, FIX, ZeroMQ, etc.) A collaborative, analytical, and solutions-driven mindset What's in It for You High annual bonus potential Excellent pension scheme Private medical care Gym membership and wellbeing More ❯
CPU architectures, cache optimisation techniques and Linux optimisation, and kernel knowledge In-depth networking and messaging knowledge of networking and messaging protocols such as TCP, UDP, UPC, Multicast and FIX, along with the ability to understand and diagnose packet captures Experience with quantitative financial instrument and algorithmic trading Expertise in implementing controls within automated trading systems, working collaboratively with More ❯
