26 to 50 of 54 FIX Protocol Jobs in the Thames Valley

changes (e.g., MiFID II) ⸻ Requirements: • 2-5 years in Fixed Income, Rates or Credit eTrading is a MUST • Strong product knowledge (govies, swaps, futures) and eTrading workflows • Experience with FIX protocol, market connectivity, and trading systems • Excellent communication and stakeholder management skills 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 FIX protocol, 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 ❯

ideal candidate will be well-organized, possess excellent interpersonal and communication skills, and will additionally possess technical or business experience with about 3-5 years' experience in: Electronic trading. FIX protocol CentOS/REHL (or other *nix) Scripting/coding experience in languages such as Bash or Python Extreme comfort with log investigation and configuration file management #J More ❯

ideal candidate will be well-organized, possess excellent interpersonal and communication skills, and will additionally possess technical or business experience with about 3-5 years' experience in: Electronic trading. FIX protocol CentOS/REHL (or other *nix) Scripting/coding experience in languages such as Bash or Python Extreme comfort with log investigation and configuration file management #J More ❯

ideal candidate will be well-organized, possess excellent interpersonal and communication skills, and will additionally possess technical or business experience with about 3-5 years' experience in: Electronic trading. FIX protocol CentOS/REHL (or other *nix) Scripting/coding experience in languages such as Bash or Python Extreme comfort with log investigation and configuration file management #J More ❯

ideal candidate will be well-organized, possess excellent interpersonal and communication skills, and will additionally possess technical or business experience with about 3-5 years' experience in: Electronic trading. FIX protocol CentOS/REHL (or other *nix) Scripting/coding experience in languages such as Bash or Python Extreme comfort with log investigation and configuration file management Please More ❯

thriving in fast-paced environments Bonus but not essential: Financial markets knowledge—strong technical skills are paramount Stand outs if you have worked with but not essential: SBE Aeron Fix Protocol and Equities What’s On Offer: Meaningful equity stake + cash bonus Comprehensive benefits (healthcare, pension, wellness allowance) Hybrid work model, generous vacation, and additional perks Interview 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 Fix Protocol 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 ❯

expanding our electronic trading infrastructure and client connectivity. Key Responsibilities: Client Onboarding: Design and implement onboarding processes for new electronic trading clients, ensuring seamless integration and optimal experience. API & FIX Documentation: Maintain, update, and improve technical documentation for REST, WebSocket, and FIX APIs. Integration Support: Develop and maintain sample code and technical guides to showcase integration workflows with … Generate and analyze execution performance metrics and PnL reports to support internal teams and clients. Required Qualifications: Experience: Minimum of 5 years of hands-on experience with Java and FIX protocol. API Integration: Strong experience integrating with REST and WebSocket APIs . Database Skills: Proficient in SQL , with a focus on PostgreSQL . Industry Knowledge: Deep understanding of order More ❯

Job title: Production Support Engineer - Python Client: Elite FinTech Salary: £80,000-£160,000 + Bonus Location: London/Hybrid Skills: Linux, Python, SQL, Front Office, FIX, Finance The role: My client are seeking an Engineer with a broad skillset to support a range of technology within their stack. The position has a heavy focus on the support of … have: Experience of working in Linux environments Strong understanding of Application architecture Scripting skills utilising Python An understanding of relational databases and querying (SQL, Postgres etc.) SQL troubleshooting skills FIX skills highly desirable A personality! The organisation is one of the most elite FinTech firms globally and you can expect to find: Stunning offices Generous benefits and bonus package More ❯

platform upgrades and modernisation Help 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 take real ownership and play More ❯

high-throughput trading components Work 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 quality through rigorous testing, benchmarking More ❯

JavaScript (ES6+) Proven experience delivering 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 capital markets Experience in data More ❯

Role: Contract Business Analyst (Exchange Trading) Domain: Energy & Commodities Trading Project: Trading Exchanges (Third Party Networks, OMS/EMS, FIX messaging) Location: London (hybrid) Rate: £800/d (inside IR35) Contract: 6 months (multi-year scope) X4 Technology are partnered with a global energy trading offering a contract Business Analyst (Exchange Trading) role on a high-profile, multi-year … aims to streamline the lifecycle of derivatives trading by automating execution, enhancing price transparency and improving customer experience. This specific project focuses on exchange connectivity, OEMS integration (Trading Technologies), FIX protocol implementation and market data integration to deliver a scalable, compliant trading infrastructure. Responsibilities of the Business Analyst (Exchange Trading) Leverage expertise in global future exchanges to gather … and clarify business requirements Serve as SME for trading exchange, OEMS, FIX protocol and market data integration Translate requirements into technical solutions across the project lifecycle Analyse and map RFQ, order and trade lifecycles to design solutions that enhance trading system quality and efficiency Liaise between business, development, QA, infrastructure and production support to ensure smooth delivery Troubleshoot More ❯

Social network you want to login/join with: Technical Operations Engineer | Trading Systems Support | Unix/Linux, Python, FIX Protocol. A leading fintech firm is seeking a Technical Operations Engineer to provide 1st and 2nd line support for its critical trading systems and platforms. This is an exciting opportunity to work in a high-performance environment where reliability … time support for trading systems, ensuring seamless operation and minimal downtime. Diagnose and resolve technical issues related to Unix/Linux environments , automation scripts in Python , and connectivity using FIX Protocol . Collaborate with internal teams to escalate and resolve complex system challenges. Monitor system performance, proactively identifying potential risks or bottlenecks. Contribute to ongoing enhancements, automation, and … best practices in operational support. Required Skills & Experience: Strong hands-on experience with Unix/Linux systems administration. Proficiency in Python for scripting and automation. In-depth understanding of FIX Protocol for trade messaging and connectivity. Ability to troubleshoot and resolve complex technical issues under pressure. Previous experience in a financial or trading environment is highly advantageous. Why More ❯

Computer Science with 5+ years’ experience using Python within Financial Services/Back Office environments Demonstrable experience processing large datasets (PostgreSQL and data frame) Exposure to trade booking/FIX protocol Ability to create scalable, geographically distributed and high availability architectures Background creating reporting and reconciliation applications Undertsanding of OTC products with CDS, Interest Rate Swaps, Variance Swaps … hugely beneficial The key skillset is Python, but your expertise should extend to managing large datasets with PostgreSQL, and you should be well-versed in trade booking using the FIX protocol. A deep understanding of trading, booking, and position keeping is essential, along with experience in scalable and high-availability architectures will be advantageous. You will be capable of More ❯

Support team at another financial services firm within Fixed Income (ideally Rates). Previous experience supporting vendor platforms (ION, Murex, Bloomberg) Previous experience in the following technologies: Unix, SQL, FIX Experience of technical support across a demanding user base in Fixed Income. The company are operating a hybrid way of working. You will be expected to work in the More ❯

meetings. Manage integration projects from start to finish. Provide technical documentation and support internal teams. Resolve escalated issues effectively. 2+ years of integration or technical support experience. Knowledge of FIX, XML, JSON. Understanding of financial markets (Equities, Derivatives, FX, Rates). Experience in client-facing roles. Preferred Skills FIXML and FIX Simulator Data analytics tools (e.g., Pentaho) Broker More ❯

technical capabilities of the product, providing solution(s) for any gaps in functionality, and undertaking development to deliver functionalities (when required). Technical Consultants/Analyst Developers must have: 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 ❯

logs, etc.) Experience building systems with sub-millisecond latency targets . Strong exposure to low-latency messaging technologies (e.g. Aeron , Chronicle Queue, SBE, UDP multicast). Market connectivity (e.g. FIX, exchange/broker APIs) experience. More ❯

skills . Communicate effectively with both technical and non-technical colleagues. Required Technical Skills: Strong programming skills in Python or another scripting language Experience with SQL databases Knowledge of FIX Protocol Familiarity with DevOps practices, CI/CD pipelines, and automation tools Why Join? Work in a prestigious and highly profitable hedge fund , offering some of the best More ❯

industry data. Deploy and operate services on Azure using Functions, App Services, AKS (Kubernetes), and related services. Data Ingestion & Management Ingest diverse data sources (exchange feeds, third-party APIs, FIX/WebSocket interfaces). Implement ETL processes and data models to drive downstream analytics and trading strategies. Uptime & Monitoring Implement health checks, alerting, and observability (metrics, logs, tracing) to More ❯

slippage. Required Expertise: Exceptional C++ skills , including common trading data structures, low-latency techniques, robust concurrency control, efficient memory management, and CPU/cache optimization. Proficiency in network programming (FIX, binary) and asynchronous I/O . Strong understanding of quantitative concepts such as probability trees and dynamic programming . #J-18808-Ljbffr More ❯

Python, Rust, or Bash. Excellent problem-solving skills with a proactive and ownership mindset. Strong verbal and written communication skills. Nice to have: Knowledge of trade flow protocols like FIX, BOE, OUCH/ITCH, PILLAR, SBE, OMEX. Experience with FPGA-based applications and L1 network design. Familiarity with various network switch architectures and vendors. If you’re ready to More ❯