26 to 50 of 143 Distributed Systems Jobs in the City of London

Seed > Seed 🧢 Role | Software Engineer 🪜 Level | Mid–Senior ✨ Tech | Python, TypeScript, FastAPI, React, Cloud infrastructure, AI/LLMs 🎯 Areas | agentic AI, real-time systems, product development 📍 Based | Central London, near Farringdon 💻 Working | in-office 💰 Offer | £100–120k + meaningful equity Workonomics are partnering with a British - founded healthtech startup … high-stakes environments. You’ll help: collaborate closely with users, translating real-world needs into reliable software work on real-time data flows, async systems, and distributed architectures build and evolve agentic AI systems used in live, production settings contribute to technical and architectural decisions ...

solving tough tech problems. What You’ll Do Design and implement robust, scalable microservices and APIs in Go Lead the technical design of distributed data systems supporting research and clinical workflows Collaborate with data scientists, bioinformaticians, and product teams to translate scientific needs into resilient software solutions Optimize … architectural decisions across teams What We’re Looking For 7+ years of software engineering experience, including extensive experience with Golang Deep understanding of distributed systems , data-intensive applications , and microservices architectures Experience with cloud environments (AWS, GCP, or Azure) and container orchestration (Kubernetes, Docker) Solid background ...

Senior Java Engineer (Kafka, Spring Boot, Microservices) We’re hiring a Senior Java Engineer to build secure, real-time systems using Java, Spring Boot, and Apache Kafka. You’ll design scalable event-driven microservices, collaborate across the stack, and shape a platform used in mission-critical environments. … hands-on backend engineer passionate about distributed systems, resilience, security and clean architecture — this is your next challenge. 🌍 Location & Flexibility Work remotely from anywhere in the UK, with the option to use a London office when you prefer in-person time. Team meetups are planned in advance, flexibility ...

Senior Python Engineer — Fully Remote | High Ownership | Modern Backend Systems I’m hiring for a Senior Python Engineer who wants meaningful ownership, technical depth, and the freedom to work from anywhere. This role is ideal for a seasoned engineer who’s built large-scale systems, cares about clean … join a high-performing engineering team building modern backend and AI-driven products used at scale. This isn’t maintenance work—you’ll architect systems, drive technical decisions, and ship features that shape the direction of the platform. What You’ll Work On Designing and developing robust backend services ...

shape the future. About the Role As a Backend Engineer, you’ll be part of a high-performing, cross-functional engineering team working on systems that power millions of daily customer interactions. You’ll design and build event-driven, cloud-native services using modern JVM technologies — with a strong … designers. What You’ll Do Develop scalable microservices using Java and/or Kotlin Design APIs and build integrations across our core financial systems Work with event-driven architectures (Kafka or similar) Write clean, testable, maintainable code following best practices Contribute to technical design discussions and architecture decisions Collaborate ...

solve complex problems that contribute to a greener, more sustainable world? 🌍🌱 Join a high-calibre engineering team building modern, customer-facing and energy-focused systems in one of the UK’s most exciting clean tech companies. You’ll join one of their core teams, diving deep into production systems … driving long-term architectural decisions that support scale, resilience and product growth. What You’ll Do Design, build and evolve platform architecture across distributed systems. Analyse production systems to uncover and resolve performance issues. Contribute to backend design using Kotlin (or JVM), supporting a polyglot mindset. Collaborate across ...

Package | Hybrid Working] Role Overview We’re supporting a global quantitative research and engineering organisation that depends on extremely high-throughput, low-latency storage systems to fuel large-scale modelling, simulation, and data-driven research. They are now hiring an HPC Storage Engineering Lead/Manager to take ownership … with researchers and platform groups whose workloads push infrastructure to its limits... Key Responsibilities Set and steer the roadmap for storage platform evolution, ensuring systems can support rapidly expanding compute and data requirements Lead, coach, and develop a team of storage engineers, establishing high technical standards and a culture ...

bring deep expertise in Java, Spring Boot, cloud-native architecture on AWS, and DevOps practices, with a proven track record of designing enterprise-grade systems and driving cloud modernization initiatives. Key Responsibilities Architecture & Solution Design Define end-to-end architecture for microservices, APIs, integrations, and data flows. Create solution … manage risks, dependencies, and cloud costs. Required Skills & Experience Experience: 10–15 years overall, with 4–6 years in an architecture role designing distributed systems at scale. Core Technologies: Java 11+/17, Spring Boot, Spring Cloud, JPA/Hibernate, RESTful APIs. Microservices architecture, DDD, BFF patterns, event ...

Modern C++ : You’re an expert in C++ and can write low-latency code that powers high-performance trading systems. Understanding of Trading Systems: You understand trading systems (anything from packet-level exchange connectivity to improving the performance of strategy code) better than most. Passion for Building … Quant Development, Quant Developer, Intraday Trading, Quant Fund, Hedge Fund, Finance, Equities, Futures, FX, Modelling, Strategies, Trading Signals, Multithreading, Linux, Unix, High-Performance, Operating Systems, Real-Time, Algorithms, Algorithmic Trading, Electronic Trading, E-Trading, Systematic Trading, High-Frequency Trading, HFT, High Frequency, Startup, Scaleup, Prop Trading, Execution, Algo Trading ...

Hybrid (2x a week - London) – 6 month contract Our client is seeking a Senior Java Developer who is passionate about clean code, cloud-native systems, and building technology that makes a real impact. This is a unique opportunity to work in an agile, high-ownership engineering culture. What … issues and help ensure system reliability and performance What You’ll Bring: Strong backend engineering experience, especially in Java and Spring Deep understanding of distributed systems and microservices Hands-on experience with AWS , Kubernetes , Docker , and Terraform Familiarity with CI/CD pipelines and testing best practices Solid ...

next wave of technological advancements. Role Overview: As a Senior Python Engineer, you will be at the heart of our technology platform, building robust systems that enhance our trading strategies, risk management, and data analysis. You will collaborate closely with quants, data scientists, and traders, providing Python-based solutions … pipelines to process large datasets from multiple sources, including real-time market data and fundamental data. Implement robust APIs and microservices to integrate trading systems, analytics platforms, and external data providers. Optimize performance and scalability of existing systems, ensuring low-latency trade execution and real-time risk monitoring. ...

Looking For Strong hands-on software engineering experience in Kotlin (Backend) Solid understanding of JVM internals, concurrency, and performance optimisation Experience building distributed systems, microservices, or event-driven architectures Knowledge of frameworks such as Spring Boot , Micronaut , or Ktor Familiarity with cloud platforms (AWS, GCP, Azure) and modern ...

senior stakeholders; manage risks, dependencies, and cost. Required Experience & Skills Experience: 10–15 years overall, including 4–6 years as an architect designing distributed systems at scale. Core Tech Stack Java 11+/17, Spring Boot, Spring Cloud, JPA/Hibernate, RESTful services. Microservices architecture: domain-driven design ...

Skills 5+ years of Java development experience. Strong expertise in Java 8+, Spring frameworks, JAX-RS, JAX-WS, Hibernate, JPA. Experience with microservices and distributed systems. Full-stack development experience. Knowledge of REST APIs, Kafka/RabbitMQ, SQL/NoSQL. Experience with CI/CD and cloud platforms (Azure ...

long-term gaming clients. This is a high-growth technology business investing heavily in modern engineering practices, platform resilience and large-scale distributed systems. This is a hybrid role (3 days per week in the London office). 🌟 The Opportunity You’ll be joining a major multi-year transformation … programme, working on brand-new services being built in Golang to support a high-traffic, globally distributed platform. This is not maintenance- it’s hands-on engineering, system design, and building resilient services from the ground up. 💼 What You’ll Be Doing Building backend features and services using ...

About the Role We’re looking for a Senior Software Engineer with deep experience in Python and AWS to help design, build, and scale distributed, data-driven Ad-Tech systems. You’ll lead the delivery of cross-service features within a modern cloud platform, making pragmatic architectural choices … setting high standards for engineering quality, reliability, and performance. You’ll play a key role in shaping technical direction, mentoring engineers, and ensuring the systems you build are secure, observable, and resilient. Key Responsibilities Lead complex delivery: Drive the end-to-end design and implementation of Python-based microservices ...

Qualifications: 3+ years of experience administering Solace PubSub+ messaging systems. Strong background in production support , preferably in a 24x7 enterprise environment. Experience working with distributed systems over WAN , with an understanding of networking, latency, and failover strategies. Solid experience with Prometheus and Grafana for system monitoring and alerting. … Proficiency in troubleshooting message delivery, persistence, and topic routing. Experience with capacity management , performance tuning, and system scaling. Familiarity with Linux/Unix systems and scripting (Bash, Python, etc.). Strong analytical and problem-solving skills, with attention to detail. Excellent communication and collaboration skills. Nice to Have: Experience ...

millions to billions of tracking events. Think API performance and data processing efficiency meets cutting-edge innovation. You'll be designing highly performant and distributed services that ingest and process location and temperature data from every corner of the globe, building robust, low-latency APIs that power logistics decisions … Back-End Development Mastery Backend Expertise: Advanced TypeScript/Node.js/Python skills with deep, hands-on understanding of designing and implementing high-scale distributed systems. API Design: Proven track record designing, implementing, and optimizing production-grade APIs (REST/GraphQL) for both internal and external consumption. Data Systems ...

Python , plus Java/Scala where needed Modelling complex datasets to enable controlled, interoperable data access Integrating data from diverse and sometimes legacy operational systems Implementing fine-grained access controls , classification rules & governance frameworks Deploying data services across cloud, hybrid, and on‐prem environments Working closely with architects, security … capability Commercial Java and/or Scala Advanced SQL + strong data modelling Expertise in large-scale ETL/ELT pipelines Solid understanding of distributed systems Experience across AWS, Azure, or GCP Knowledge of Docker, Kubernetes , containerisation & orchestration Familiarity with CI/CD and modern DevOps practices 🔐 Security ...

Looking For: Strong experience with Java (11+) Hands-on experience with Reactive programming (WebFlux, Reactor, Akka, Vert.x, or similar) Solid understanding of Microservices, distributed systems, and event-driven architectures Experience with cloud platforms (AWS, GCP, or Azure) Knowledge of CI/CD pipelines, Docker, Kubernetes, or related tooling … strong non-contributory pension Hybrid working with 1–2 office days per week in our London location Opportunity to work on mission-critical systems at scale ...

product and engineering strategy. Identify and address technical debt to support long-term platform growth. Platform, Infrastructure & Reliability Build and maintain APIs, microservices, backend systems, and third-party integrations. Ensure platform security, performance, reliability, and scalability. Manage cloud-native workflows using AWS, Docker, and CI/CD pipelines . … Work with distributed systems and messaging technologies (e.g. SQS, RabbitMQ ). Drive strong testing practices, monitoring, observability, and production readiness. Essential Technical Experience: Significant full-stack engineering experience, particularly with PHP (Symfony or Laravel) . Strong experience with JavaScript (Vue.js, React.js, and/or Node.js). Solid database ...

product and engineering strategy. Identify and address technical debt to support long-term platform growth. Platform, Infrastructure & Reliability Build and maintain APIs, microservices, backend systems, and third-party integrations. Ensure platform security, performance, reliability, and scalability. Manage cloud-native workflows using AWS, Docker, and CI/CD pipelines . … Work with distributed systems and messaging technologies (e.g. SQS, RabbitMQ ). Drive strong testing practices, monitoring, observability, and production readiness. Essential Technical Experience: Significant full-stack engineering experience, particularly with PHP (Symfony or Laravel) . Strong experience with JavaScript (Vue.js, React.js, and/or Node.js). Solid database ...

seeking a DevOps/Platform Engineer to maintain and enhance our existing platform infrastructure, with opportunities to contribute to backend development when needed. Our systems are already live and in active use, so your focus will be on reliability, performance, automation, observability, and clean, maintainable Infrastructure-as-Code. … pipelines using GitHub Actions Containerise and deploy backend applications using modern tooling (e.g., Docker, Kubernetes) Implement and manage comprehensive logging, monitoring, and alerting systems Contribute to the backend codebase for service integrations, internal tooling, and incident resolution Improve developer workflows and internal automation to increase team velocity Collaborate with ...

into a senior position within a high-performing team within the world of Banking/Payments? Are you passionate about high-throughput, real-time systems? This is your opportunity to help shape the core technology that powers instant payments for some of the world’s largest Banks. … across the globe. 🔍 What You’ll Be Doing You’ll be the focal point of a high-performing engineering team building asynchronous, event-driven systems using modern Java technologies. Design and build scalable, high-availability systems processing millions of real-time transactions Work with Java 17+, Spring WebFlux ...

modern tech solutions that improve the customer experience and help retailers deliver great service. What you’ll be doing Designing, developing and scaling backend systems built primarily in Python Leading technical decisions around architecture, tooling and best practices Mentoring engineers and contributing to raising engineering standards across the team … environment Tech stack Python | FastAPI | Django | AWS | Kubernetes | Terraform | PostgreSQL | OpenSearch | GitHub What we’re looking for Extensive commercial experience building production-grade backend systems in Python Strong understanding of system architecture, distributed systems and API design Solid experience with modern cloud environments (AWS preferred) Good knowledge ...