City of London, London, United Kingdom Hybrid / WFH Options
Quant Capital
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 More ❯
skills We would love to see: Bachelor's degree in Accounting, Finance, Computer Sciences, or related fields Knowledge of Market Data connectivity Knowledge of FIX and/or other message protocols Experience working with Market Data entitlements Does this sound like you? Apply if you think we're a More ❯
Management: Proven experience managing multiple projects simultaneously, particularly in delivering financial sector technology projects. Technical Skills: Knowledge of messaging technologies and product integration, including FIX, REST, XML, SOAP. Problem-Solving Skills: Strong abilities to resolve technical challenges, issues, and make data-driven decisions. Leadership and Ownership: Demonstrated ability to More ❯
solutions. • Work alongside developers throughout the firm to design, build, test and deploy custom solutions. • On-board client and broker connections to our FlexLINK FIX network. • Implement and test new FX liquidity providers onto the FlexTrade liquidity aggregation engine. • Work with teams across the firm to continually improve the More ❯
London, England, United Kingdom Hybrid / WFH Options
Elwood Technologies Services Limited
other structured languages (C#, C++, Rust). Experience working in cloud and containerized environments. Proficiency in building and using REST, WebSockets, and/or FIX-based APIs. Strong knowledge of data structures and algorithms. Excellent software design and debugging skills. Bachelor's degree or relevant work experience in Computer More ❯
services industry working on large scale data migration programmes Good understanding of financial reference data and experience with FS industry standard models (e.g. fpML, FIX, FIBO) is highly preferred Data modelling skills and a solid understanding of the difference between conceptual, logical and physical models Stakeholder Management experience and More ❯
solutions. Work alongside developers throughout the firm to design, build, test and deploy custom solutions. On-board client and broker connections to our FlexLINK FIX network. Implement and test new FX liquidity providers onto the FlexTrade liquidity aggregation engine. Work with teams across the firm to continually improve the More ❯
London, England, United Kingdom Hybrid / WFH Options
Elwood Technologies
expertise or other structured languages (C#, C++, Rust) Worked in cloud and containerised environments. Proficient in building and using REST, WebSockets, and/or FIX-based APIs Strong knowledge of data structures and algorithms Excellent software design and debugging skills Bachelor's degree or relevant work experience in Computer More ❯
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 ❯
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 ❯
trends, or opportunities for product enhancements Experience managing and supporting sell-side accounts, brokers or central banks We'd love to see: Knowledge of FIX Connectivity and the following programming languages: Python, SQL and VBA Experience in data analytics tools; business intelligence tools or similar Interest in or experience More ❯
the Institutional derivatives business area preferable Relevant experience supporting Institutional electronic trading business Experience in Web Services/API’s platform Excellent understanding of FIX desirable Established interest and awareness of financial markets Ability to build solid working relationships with key stakeholders internal and externally Commercially and strategically minded More ❯
PostgreSQL/Timescale and MySQL. Familiarity with messaging systems like RabbitMQ and real-time technologies like SignalR. Knowledge of API development and integration (REST, FIXProtocol). Nice to have: DevOps experience with Azure and Terraform (Infrastructure as Code). Previous exposure to trading operations, especially derivatives, spreads More ❯
Belfast, Northern Ireland, United Kingdom Hybrid / WFH Options
Citigroup Inc
scripts Nice to have skills and experience: Previous experience/knowledge of supporting a Futures trading business preferred Linux and scripting also an advantage FIX connectivity or API messaging integration also a plus. Knowledge of applications such as CME-Direct, WebICE, ION XTP, Bloomberg also a plus Skills: Knowledge More ❯
Staatliche Hochschule für Musik und Darstellende Kunst Mannheim
a Linux environment Application performance profiling and optimization Bonus Points: eFX development experience in a low latency, zero GC environment Knowledge of institutional encodings (FIX, SBE) Fault tolerant, high availability, distributed computing Knowledge of low latency messaging (e.g. Aeron, 29West) Knowledge of Crypto What We Offer (UK): Competitive base More ❯
Greater London, England, United Kingdom Hybrid / WFH Options
CommuniTech Recruitment Group
is desirable and indicative of the right type of experience: Trayport GlobalVision/Joule, Updata, GMSL ENOM/CodeRunner/EuroRunner, ICE/OnixS FIX Engine. Experience in Azure App Insights is desirable. Person specification Excellent communication and interpersonal skills, with an ability to communicate effectively and professionally. Take More ❯
is desirable and indicative of the right type of experience: Trayport GlobalVision/Joule, Updata, GMSL ENOM/CodeRunner/EuroRunner, ICE/OnixS FIX Engine. Experience in Azure App Insights is desirable. Person specification Excellent communication and interpersonal skills, with an ability to communicate effectively and professionally. Take More ❯
shape the long-term strategy of the connectivity stack Key Requirements: Strong Core Java, multithreading, and concurrency experience Knowledge of market connectivity protocols (e.g. FIX) Experience in any asset class, equities preferred, but others considered Ability to work independently and contribute to technical direction This is an opportunity to More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Vertus Partners
shape the long-term strategy of the connectivity stack Key Requirements: Strong Core Java, multithreading, and concurrency experience Knowledge of market connectivity protocols (e.g. FIX) Experience in any asset class, equities preferred, but others considered Ability to work independently and contribute to technical direction This is an opportunity to More ❯
Slough, England, United Kingdom Hybrid / WFH Options
JR United Kingdom
shape the long-term strategy of the connectivity stack Key Requirements: Strong Core Java, multithreading, and concurrency experience Knowledge of market connectivity protocols (e.g., FIX) Experience in any asset class, equities preferred, but others considered Ability to work independently and contribute to technical direction This is an opportunity to More ❯
support, in a front-office/L1 environment(essential) Strong Linux/UNIX experience Strong SQL experience Solid Python scripting experience Solid understanding of FIX Benefits of working there Opportunity to work with some of the latest, most sophisticated technology in the world Dynamic environment – new and exciting challenges More ❯
London, England, United Kingdom Hybrid / WFH Options
JR United Kingdom
shape the long-term strategy of the connectivity stack Key Requirements: Strong Core Java, multithreading, and concurrency experience Knowledge of market connectivity protocols (e.g. FIX) Experience in any asset class, equities preferred, but others considered Ability to work independently and contribute to technical direction This is an opportunity to More ❯
closely with quant and trading teams to optimise execution performance Build and maintain messaging infrastructure using technologies such as Aeron, SBE, Disruptor, Chronicle, and FIX Tune the JVM for microsecond-level performance (0GC, CPU affinity, memory management) Contribute to architecture and design decisions for latency-sensitive services Ensure code More ❯
closely with quant and trading teams to optimise execution performance Build and maintain messaging infrastructure using technologies such as Aeron, SBE, Disruptor, Chronicle, and FIX Tune the JVM for microsecond-level performance (0GC, CPU affinity, memory management) Contribute to architecture and design decisions for latency-sensitive services Ensure code More ❯
front-end applications in electronic trading environments Strong understanding of performance optimisation and low-latency UI design Experience with real-time data technologies (WebSockets, FIX, etc.) Familiarity with containerized front-end platforms such as OpenFin is a plus Prior exposure to Fixed Income products (Rates, Credit, Bonds) or other More ❯