Linux systems using advanced C++. Proficient in Python and Bash scripting. Strong background in multithreaded and distributed system design. Experience with trading gateways and market data feeds. Familiarity with FIXprotocol and low-latency optimization. Solid understanding of financial products. Strong communicator and collaborative team player with sharp problem-solving skills. Pre-Application: Please do not apply if More ❯
trading platforms. Strong documentation and requirements gathering skills, with a pragmatic approach to technical detail. Comfortable liaising across business, technical, and client-facing teams to drive delivery. Knowledge of FIXprotocol, microservices, or cloud-native architectures is advantageous. This is an exciting opportunity to shape cutting-edge trading software used by top-tier financial institutions, while working at More ❯
trading platforms. Strong documentation and requirements gathering skills, with a pragmatic approach to technical detail. Comfortable liaising across business, technical, and client-facing teams to drive delivery. Knowledge of FIXprotocol, microservices, or cloud-native architectures is advantageous. This is an exciting opportunity to shape cutting-edge trading software used by top-tier financial institutions, while working at More ❯
forwards, options, and market conventions. Proficiency in supporting and troubleshooting Windows applications. Solid understanding of database concepts and SQL query language. Strong knowledge of AWS/Azure. Familiarity with FIXprotocol and experience with FIX connectivity troubleshooting. Excellent problem-solving skills and ability to work well under pressure in a fast-paced trading environment. Effective communication skills More ❯
FX or other electronic trading environments. Key Responsibilities: Design, develop, and maintain high-performance C++17+ trading systems for FX spot, forwards, and NDFs. Build and optimise market connectivity components (FIX, proprietary protocols) and order management systems. Collaborate directly with traders and quants to implement trading strategies and pricing models. Ensure system reliability, scalability, and ultra-low latency under high … on performance, concurrency, and low-latency design. Experience in front office or trading environments, ideally within FX or other liquid asset classes. Deep understanding of networking, messaging protocols (e.g., FIX), and exchange connectivity. Familiarity with Linux systems, performance profiling tools, and real-time debugging. Knowledge of market microstructure, order types, and execution logic. Please apply for more info More ❯
+ Bonus £30,000 + Benefits Key skills: Hands on experience with low latency market data and order management systems, internal or third party Working knowledge of FIX trading protocol Technical proficiency with Python, Linux, SQL, Excel, AWS, ability to debug scripts and code DevOps experience with Jenkins, Ansible, Git, Bitbucket, Jira, Docker is a plus Strong analytical … improvements, automate daily tasks, document existing and new workflows Please apply now for immediate consideration and further details. Keywords: Trade application support, low latency market data, order management systems, FIX trading protocol, Python, Linux, SQL, Excel, AWS, DevOps, Ansible, Git, Bitbucket, Jira, Docker. Scot Lewis Associates Ltd is acting as an employment business. More ❯
+ Bonus £30,000 + Benefits Key skills: Hands on experience with low latency market data and order management systems, internal or third party Working knowledge of FIX trading protocol Technical proficiency with Python, Linux, SQL, Excel, AWS, ability to debug scripts and code DevOps experience with Jenkins, Ansible, Git, Bitbucket, Jira, Docker is a plus Strong analytical … improvements, automate daily tasks, document existing and new workflows Please apply now for immediate consideration and further details. Keywords: Trade application support, low latency market data, order management systems, FIX trading protocol, Python, Linux, SQL, Excel, AWS, DevOps, Ansible, Git, Bitbucket, Jira, Docker. Scot Lewis Associates Ltd is acting as an employment business. More ❯
as Senior Developer around digital applications, software engineering, microservices and cloud. This could include Core Java, Spring Boot, Hibernate/JPA and UI using React, Ember, JavaScript or HTML. FIX Experience Cloud experience with containerization (Docker, Kubernetes), Database (Relational and NoSQL), Messaging (RabbitMQ), Repository (BitBucket), or Helm Charts would be highly regarded (not all necessary). Good knowledge of More ❯
City of London, Greater London, UK Hybrid / WFH Options
Quant Capital
as Senior Developer around digital applications, software engineering, microservices and cloud. This could include Core Java, Spring Boot, Hibernate/JPA and UI using React, Ember, JavaScript or HTML. FIX Experience Cloud experience with containerization (Docker, Kubernetes), Database (Relational and NoSQL), Messaging (RabbitMQ), Repository (BitBucket), or Helm Charts would be highly regarded (not all necessary). Good knowledge of More ❯
Scrum environments. Preferred Qualifications: Exposure to containerized environments (Docker, Kubernetes). Experience with CI/CD pipelines (Jenkins, GitLab CI, or similar). Knowledge of financial data protocols (e.g., FIX, SWIFT) is advantageous. Familiarity with cloud platforms (AWS, Azure, or GCP) is a plus. More ❯
Scrum environments. Preferred Qualifications: Exposure to containerized environments (Docker, Kubernetes). Experience with CI/CD pipelines (Jenkins, GitLab CI, or similar). Knowledge of financial data protocols (e.g., FIX, SWIFT) is advantageous. Familiarity with cloud platforms (AWS, Azure, or GCP) is a plus. More ❯
to write code ideally Strong knowledge of Windows/Linux environments (commands, ability to create complex batches) Service management and monitoring tools : Splunk, Autosys, Geneos Strong knowledge of MarkitWire FIXprotocol (v4.4) The role is based in London on a hybrid basis. The role could be open to contractors under umbrella. More ❯
able to manage an ongoing system issue to its conclusion Have experience working with Linux/Unix systems and using the command-line interface Have a solid understanding of FIXprotocol and electronic trading systems Be confident with technology to enable you to understand our service Be a collaborative thinker - able to share responsibility and ownership of issues More ❯
book dynamics and pricing techniques Proven track record in Java programming, specifically in building fast, low-latency trading systems Strong familiarity with market data and order execution protocols (e.g. FIX, binary, or custom APIs) Hands-on experience with JVM tuning, garbage collection, and deep performance analysis Knowledge of fast messaging and data serialization technologies for high-speed environments Proficiency More ❯
global Futures & Options market structure, including exchanges, regulations (MiFID II, CFTC), and clearing processes. Expertise in electronic trading, including leading Futures & Options ISVs, vendor EMS products, client connectivity solutions, FIXProtocol, and algorithmic trading. Understanding of technology systems and platforms, including the integration and implementation of Order Management Systems. Skilled in leveraging technology to enhance trading performance and More ❯
/CD pipelines and source control (e.g., Git). Strong problem-solving and communication skills. Detail-oriented and disciplined in issue follow-through. Nice-to-Have Skills Knowledge of FIX, WebSocket, or REST protocols used in trading systems. Experience working in Agile environments. Exposure to test coverage reporting tools (e.g., Jacoco, SonarQube). Previous internship or project experience with More ❯
global Futures & Options market structure, including exchanges, regulations (MiFID II, CFTC), and clearing processes. Expertise in electronic trading, including leading Futures & Options ISVs, vendor EMS products, client connectivity solutions, FIXProtocol, and algorithmic trading. Understanding of technology systems and platforms, including the integration and implementation of Order Management Systems. Skilled in leveraging technology to enhance trading performance and More ❯
Technical Operations Engineer | Trading Systems Support - Unix/Linux | Python | FIXProtocol | Fixed Income Trading Are you a technically skilled operations engineer with a passion for financial markets? A leading software vendor and trading firm specializing in fixed income is looking for a Technical Operations Engineer to support its mission-critical trading platforms. This is a fantastic opportunity … Provide 2nd line support for real-time trading systems, ensuring minimal downtime and optimal performance. Troubleshoot and resolve technical issues across Unix/Linux environments, Python-based automation, and FIXProtocol connectivity. Collaborate with development, infrastructure, and trading teams to address complex system challenges. Monitor system health and proactively identify and mitigate potential risks or performance bottlenecks. Contribute … and best practices. What You’ll Bring Strong hands-on experience with Unix/Linux system administration. Proficiency in Python for scripting and automation tasks. Solid understanding of the FIXProtocol and its role in trade messaging and connectivity. Proven ability to troubleshoot and resolve technical issues in high-pressure environments. Prior experience in a financial services or More ❯
in an increasingly complex and fast-moving market landscape. What you’ll do Lead end-to-end integration of crypto and traditional exchanges Build and maintain resilient API and FIX connectivity across asset classes Automate and streamline onboarding and trading workflows Validate execution flows, order books, and settlement processes Monitor API performance and resolve issues in real time Deliver … systems in close collaboration with internal teams What you bring 7+ years in finance or fintech with strong trading infrastructure expertise Deep experience with exchange APIs (crypto & trad) and FIXprotocol Proficient in Python, JavaScript, or Go Proven track record integrating digital asset exchanges, including auth and error handling Degree in Computer Science, Engineering, Finance, or a related More ❯
City of London, Greater London, UK Hybrid / WFH Options
Radley James
in an increasingly complex and fast-moving market landscape. What you’ll do Lead end-to-end integration of crypto and traditional exchanges Build and maintain resilient API and FIX connectivity across asset classes Automate and streamline onboarding and trading workflows Validate execution flows, order books, and settlement processes Monitor API performance and resolve issues in real time Deliver … systems in close collaboration with internal teams What you bring 7+ years in finance or fintech with strong trading infrastructure expertise Deep experience with exchange APIs (crypto & trad) and FIXprotocol Proficient in Python, JavaScript, or Go Proven track record integrating digital asset exchanges, including auth and error handling Degree in Computer Science, Engineering, Finance, or a related More ❯
background in Python development and automation testing. Expertise in server and database layer testing, and familiarity with tools such as Pytest, is highly desirable. Experience with trading systems or FIXProtocol would be considered a significant advantage. The successful candidate will have excellent communication skills, a proactive mindset, and a proven track record of building scalable and effective More ❯
background in Python development and automation testing. Expertise in server and database layer testing, and familiarity with tools such as Pytest, is highly desirable. Experience with trading systems or FIXProtocol would be considered a significant advantage. The successful candidate will have excellent communication skills, a proactive mindset, and a proven track record of building scalable and effective More ❯
in dynamic, fast-paced environments Bonus but not essential: Financial markets knowledge—strong technical chops matter most Stand outs if you have worked with but not essential: SBE Aeron FixProtocol and Equities What’s On Offer: Base salary: £150k - £200k GBP Meaningful equity stake + cash bonus Comprehensive benefits (healthcare, pension, wellness allowance) Hybrid work model, generous More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Realm
in dynamic, fast-paced environments Bonus but not essential: Financial markets knowledge—strong technical chops matter most Stand outs if you have worked with but not essential: SBE Aeron FixProtocol and Equities What’s On Offer: Base salary: £150k - £200k GBP Meaningful equity stake + cash bonus Comprehensive benefits (healthcare, pension, wellness allowance) Hybrid work model, generous More ❯
Qualifications: 3+ years of expert-level C++ on Linux in trading, HFT, or real-time systems Proven track record of shipping mission-critical, latency-sensitive software Deep experience with FIX, binary protocols, and market data ingestion Obsession with performance, minimalism, and elegant code More ❯
