51 to 75 of 100 FIX Protocol Jobs in Central London

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 More ❯

environment Strong Linux skills and comfort working in command-line environments Understanding of market data and/or order data systems, including protocols like FIX or exchange-native formats Strong analytical and problem-solving mindset Ability to navigate or debug object-oriented code (Java and Python preferred) Familiarity with More ❯

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 ❯

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 ❯

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 ❯

The ideal candidate: Must be highly skilled in back-end development. Strong experience with C# .NET, RESTful Web Services, and Microservice architecture. Experience with FIX, XML, and AMQ. Experience in trading products is highly desirable. If this sounds like an interesting opportunity, feel free to apply for this position 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 ❯

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 ❯

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 … 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. More ❯

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 … 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. More ❯

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 … 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. More ❯

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 More ❯

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 More ❯

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 ❯

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 , 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 . More ❯

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 . More ❯

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. More ❯

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. More ❯

for determinism: tight latency budgets, real-time observability, and synchronized timekeeping (e.g., PTP). Oversee development of client connectivity layers including native protocols and FIX gateways optimized for sub-microsecond response. Ensure robust pre-trade and post-trade risk controls are embedded without compromising latency or throughput. Drive integration More ❯

for determinism: tight latency budgets, real-time observability, and synchronized timekeeping (e.g., PTP). Oversee development of client connectivity layers including native protocols and FIX gateways optimized for sub-microsecond response. Ensure robust pre-trade and post-trade risk controls are embedded without compromising latency or throughput. Drive integration More ❯

Support & Platform Engineer/Application SRE – Integration & Project Management Client: FinTech Salary: £90,000-£170,000 Location: London/Hybrid Skills: Linux, SQL, Python, FIX, SRE, Infrastructure, Project Management, Coordination, Trading The role: My client are looking for a talented individual with a broad skillset to perform a unique More ❯