24 of 24 Event-Driven Programming Jobs in London

a modular architecture encompassing core components such as market data feeds, order gateways, execution algorithms, risk engines, UI dashboards, middle office reconciliation, and account infrastructure. We emphasize event-driven, deterministic system design, real-time observability, and strong security. Our tech stack includes Java (low-latency), Python, Web UI (React/Ag-Grid), Aeron, ClickHouse, Kubernetes, and … order routing, execution engine, risk, and position tracking. Implement ultra-low-latency and GC-free components using best practices in lock-free and off-heap programming. Apply event-driven and fully deterministic design principles to ensure traceable and predictable system behavior. Collaborate closely with product and trading teams to translate requirements into performant, production-ready solutions. … GC programming, including use of sun.misc.Unsafe , direct buffers, and memory-mapped files. Familiarity with Aeron, SBE, or other low-latency messaging libraries. Strong grasp of event-driven architecture and experience designing fully deterministic systems. Solid knowledge of time-series and analytical databases like ClickHouse; exposure to kdb+ or InfluxDB is a plus. Experience with More ❯

in code reviews, technical design discussions, and agile ceremonies. Required Skills & Experience: Strong hands-on experience in Node.js with deep understanding of asynchronous programming and event-driven architecture. Good command of Python for scripting and backend automation tasks. Solid knowledge of Jenkins for CI/CD pipeline design and management. Experience with Ansible for More ❯

in code reviews, technical design discussions, and agile ceremonies. Required Skills & Experience: Strong hands-on experience in Node.js with deep understanding of asynchronous programming and event-driven architecture. Good command of Python for scripting and backend automation tasks. Solid knowledge of Jenkins for CI/CD pipeline design and management. Experience with Ansible for More ❯

in a complex problem domain that is implemented with simple software systems. You have an interest or experience in Functional Programming, microservices and/or event-driven architecture. You are a collaborator - you encourage pairing and believe that working together is smarter than working in a silo. You are a teacher - generous with your … skills (data structures, algorithms) Excellent communication skills, both written and spoken An interest (or experience) in any of Functional Programming, Distributed Systems or Event-Driven Architectures (using Apache Kafka) Knowledge of decision engines wanted but not essential At Funding Circle we are committed to building diverse teams so please apply even if More ❯

member experiences and Back Office processes. Key Responsibilities: Designing scalable cloud architectures for workflow automation Integration of CRM, Finance, and other SaaS products Development of microservices and event-driven architectures Maintaining and improving our current tech stack Technical Requirements: 6+ years' experience in complex, multi-platform environments Strong background in Azure cloud architecture and deployment Proficiency More ❯

member experiences and back-office processes. Key Responsibilities: Designing scalable cloud architectures for workflow automation Integration of CRM, Finance, and other SaaS products Development of microservices and event-driven architectures Maintaining and improving our current tech stack Technical Requirements: 6+ years' experience in complex, multi-platform environments Strong background in Azure cloud architecture and deployment Proficiency More ❯

Senior Software Engineer – .NET/Event-Driven Systems (.NET Developer) 📍 Hybrid (UK-based, with 1 day in London) 💼 Full-Time | Permanent 💰 £75,000-£90,000 + benefits We’re partnering with a well-established and forward-thinking organisation operating at enterprise scale across insurance, claims management, and technology solutions. Their platforms underpin essential real-world services … engineering team. 🔧 What You'll Be Working On as a Software Engineer (.NET Developer) : You’ll play a key role in the design and development of scalable, event-driven systems that power core business operations. This is a hands-on engineering position in a tech-led environment, focused on clean code, solid architecture principles, and modern … is a must Asynchronous Programming – proven experience writing performant async code in .NET TDD – confident with writing tests and working in a test-first environment Event-Driven Architecture – familiarity with tools like MediatR , RabbitMQ , or Azure Service Bus Distributed Systems – prior experience working across multiple services or domains is a bonus Frontend experience – Angular More ❯

Senior Software Engineer – .NET/Event-Driven Systems (.NET Developer) 📍 Hybrid (UK-based, with 1 day in London) 💼 Full-Time | Permanent 💰 £75,000-£90,000 + benefits We’re partnering with a well-established and forward-thinking organisation operating at enterprise scale across insurance, claims management, and technology solutions. Their platforms underpin essential real-world services … engineering team. 🔧 What You'll Be Working On as a Software Engineer (.NET Developer) : You’ll play a key role in the design and development of scalable, event-driven systems that power core business operations. This is a hands-on engineering position in a tech-led environment, focused on clean code, solid architecture principles, and modern … is a must Asynchronous Programming – proven experience writing performant async code in .NET TDD – confident with writing tests and working in a test-first environment Event-Driven Architecture – familiarity with tools like MediatR , RabbitMQ , or Azure Service Bus Distributed Systems – prior experience working across multiple services or domains is a bonus Frontend experience – Angular More ❯

experience working with Equity Derivatives • ideally around 5+ years of core Java experience • ideally around 2+ years of UI (HTML5/Javascript) experience • low latency, event driven programming paradigms • performance profiling and optimization of code • adapt at picking up new frameworks and enhancing where necessary • experience with time series databases a plus • familiar with More ❯

Desirable: Background in building benchmark tracking, dark aggregation, or liquidity-seeking algos. Familiarity with low-latency messaging systems (e.g., Solace , 29West ). Experience with Agile development and event-driven programming (Pub/Sub models). Why Apply? Join a high-performing global trading technology team at the forefront of market innovation. Work in a More ❯

Desirable: Background in building benchmark tracking, dark aggregation, or liquidity-seeking algos. Familiarity with low-latency messaging systems (e.g., Solace , 29West ). Experience with Agile development and event-driven programming (Pub/Sub models). Why Apply? Join a high-performing global trading technology team at the forefront of market innovation. Work in a More ❯

in the following areas: Leading small software development teams Front-end development with React and JavaScript Microsoft Azure cloud platform (not AWS or GCP) .NET backend development Event-driven architecture and event sourcing Experience in or exposure to the financial services industry (highly beneficial) Software Development Lead Additional Information: Duration: Initial 6-month contract More ❯

point to supported exchanges and wallets, enabling Ripple products to interact with various crypto markets efficiently. We seek a software engineer passionate about understanding and developing complex, event-driven microservice systems, with a focus on simple, elegant design that is easy to understand and maintain, crucial for Payments on the DEX. What You'll Do Integrate … threading, concurrency, etc.). A positive attitude and a passion for knowledge sharing. Interest in fintech, markets, and trading. Knowledge or high interest in tools like Java, event-driven architectures (AMQP or similar), gRPC, service meshes, etc. WHO WE ARE: Opportunity to innovate in a fast-paced startup environment with industry leaders. A learning environment with More ❯

cross-functional product teams You have worked in scaled product organisations and promote engineering excellence through architectures that deliver robust, scalable systems; having designed, developed, and maintained event-driven systems is a plus Ability to select and use the most appropriate tools, technologies, and languages for the job (Our stack includes Python, Typescript, React, AWS) Team More ❯

Lead Java Developer/Software Engineer (Java Kafka Spring Boot) London/WFH to £120k Are you a skilled Java Developer with strong Java and real-time messaging experience combined with SC Clearance? You could be progressing your career in More ❯

Expertise: Domain expert in the market microstructure of cash equities. Knowledge of liquid futures market structure is a bonus. Development Skills: Significant hands-on development experience in event-driven, real-time trading processes. Proficiency in C++ is preferred. If using Java, must demonstrate techniques that maximize runtime performance; proficiency with techniques that cover best-in-class … s degree in CS, Electrical & Electronic Engineering, Biochemistry, applied math, or statistics. Technical Skills: Strong programming skills in C++ or Java, with a focus on event-driven real-time trading processes. Analytical Skills: Excellent quantitative and analytical skills, with the ability to interpret complex data and develop actionable insights. Communication: Strong verbal and written More ❯

focus on performance optimization, testing, and system reliability Highly Valued Experience Trading strategy development (benchmark tracking, liquidity seeking, dark pool algorithms) Low latency messaging platforms (Solace, 29West) Event-driven programming and publish/subscribe architectures Agile development methodologies About Them A truly global organisation operating from 60+ offices across 27 countries, with over More ❯

focus on performance optimization, testing, and system reliability Highly Valued Experience Trading strategy development (benchmark tracking, liquidity seeking, dark pool algorithms) Low latency messaging platforms (Solace, 29West) Event-driven programming and publish/subscribe architectures Agile development methodologies About Them A truly global organisation operating from 60+ offices across 27 countries, with over More ❯

Lead Backend Software Engineer/Developer (Java Kafka SpringBoot) London/WFH to £120k Are you a skilled Backend Software Engineer with strong Java and real-time messaging experience combined with SC Clearance? You could be progressing your career in More ❯

permanent position paying up to £100,000 depending on experience and will require only a few days a month on site. Key Responsibilities: Architect and Develop the event-driven platforms Use of AI-driven tools to accelerate platform development, testing & monitoring Optimise and scale the Kafka infrastructure Deliver a Data platform that supports advanced … analytics and AI-driven features Hands-on technical leader, mentoring engineers & guiding architecture decisions Competencies: Strong Kafka & event-driven systems. Expert Back End development in Kotlin Strong knowledge of AWS distributed systems and cloud-native architecture AI/ML tools in DevOps & testing If you feel you have the right experience for this role More ❯

Golang Developer/Backend Software Engineer (Go Kafka API) London/WFH to £110k Do you have a deep knowledge of Go/Golang combined with software architecture and design skills? You could be progressing your career as a Backend More ❯

Golang Developer/Backend Software Engineer (Go Kafka API) London/WFH to £110k Do you have a deep knowledge of Go/Golang combined with software architecture and design skills? You could be progressing your career as a Golang More ❯

Golang Developer/Backend Software Engineer (Go Kafka API) London/WFH to £110k Do you have a deep knowledge of Go/Golang combined with software architecture and design skills? You could be progressing your career as a Backend More ❯

Backend Software Engineer/Developer (Golang Kafka API) London/WFH to £110k Do you have a deep knowledge of Go/Golang combined with software architecture and design skills You could be progressing your career as a Backend Software More ❯