26 to 50 of 67 WebSockets Jobs in London

need to have Proven ownership of backend services built and operated within a microservices architecture. A strong grasp of communication protocols such as HTTP, WebSockets and AMQP, including when to apply each. Production fluency in at least one modern backend framework. Deep knowledge of relational databases, including indexing, transactions, isolation ...

ReactQuery Experience with modern JavaScript frameworks - React Knowledge of version control systems (Git) Understanding of cross-browser compatibility Familiarity with RESTful APIs, GraphQL and Websockets Experience with CSS pre-processors e.g. Tailwind Back-end skills Proficiency in backend programming languages (Typescript and/or other OOP language such as c# …/Java) Strong database knowledge (SQL and NoSQL) Proficiency with RESTful APIs and GraphQL APIs and Websockets Experience with microservices architecture Knowledge of version control systems (Git) Experience with Terraform Experience with automated testing Experience with AWS (AWS Lambda, AWS Fargate, Amazon API Gateway, AWS AppSync) Worked within an Agile ...

time client APIs, collaborating closely with product, frontend, and trading teams. Applicants should have Kotlin or Python backend experience, proficiency with REST APIs and WebSockets, and knowledge of SQL, Docker/Kubernetes, and AWS. #J-18808-Ljbffr ...

full UI development lifecycle, from design through testing and deployment, using HTML, CSS, JavaScript, React and TypeScript. Strong experience with real-time communication (WebSockets, SSE) and REST APIs, plus state management (Redux) and SPA architectures, is essential. #J-18808-Ljbffr ...

Azure) Understanding of API design and database systems Commitment to code quality and testing Nice to have Experience with real-time communication (WebRTC, WebSockets) Knowledge of accessibility standards (WCAG) Background in developer experience and API design #J-18808-Ljbffr ...

worked with Python Stronger still if you have worked with: Chrome extensions or the Chrome DevTools Protocol Real-time interfaces using streaming, SSE or WebSockets Design systems or component libraries FastAPI or a similar Python API framework Preact and Vite You do not need a background in Python backend development. ...

have: Experience with micro frontends, monorepos, or component libraries (Storybook, Bit); Knowledge of design systems (Material UI, Tailwind, or similar); Exposure to WebAssembly, WebSockets, or real-time applications; Experience integrating third‐party tools and libraries (e.g. Trustly, Whizdom); Ability to understand business requirements and translate them into technical requirements. Your ...

delivering high-performance interfaces. The ideal candidate will have hands-on experience with HTML, CSS, JavaScript, React and Redux, plus real-time communication via WebSockets/SSE and testing with RTL/Jest. #J-18808-Ljbffr ...

into user interfaces Ability to use development tools effectively Nice to Have Experience with Inertia.js or Livewire Knowledge of Next.js or Nuxt.js Experience with WebSockets and real-time applications Understanding of web accessibility (WCAG) standards Experience with testing frameworks (Jest, Vitest, Cypress) Familiarity with UI/UX design principles Experience ...

prediction market exchanges using Python, FastAPI and async workflows. In this hands-on role you’ll own meaningful projects, work with REST APIs, WebSockets and external data feeds, and help ensure reliability, correctness and robust error handling in a small team. #J-18808-Ljbffr ...

visualising data in 3D (e.g. Three.js, React Three Fiber, WebGL, Deck.gl ) Real-time data flows: Comfortable working with real-time data and async patterns (Websockets, workers) Writing testable, reusable code: Vitest/Jest/Playwright, Storybook, design systems Data visualisation: Presenting complex data intuitively; geospatial experience is a plus. ...

Google Workspace Startup mindset Sales and customer success background, leading the customer experience Technical background, including: Familiarity with Metabase Experience with modern APIs (REST, Websockets, Server Sent Events) Experience with enterprise software implementations Technical troubleshooting skills Experience with issue management (JIRA) and API logging tool Familiarity with Postman and curl ...

once tradeoffs. Security: mTLS , OAuth/OIDC , JWT , x.509 , HSM/KMS , structured threat modeling and mitigation. Preferred Qualifications IoT protocols & fleet ops: MQTT , WebSockets , device twin/shadow patterns and FIDO Device Onboarding (FDO). Hardware root of trust: TPM/TPM 2.0 fundamentals—measured/verified boot device ...

Group Overview The TP ICAP Group is a world‐leading provider of market infrastructure. Our purpose is to provide clients with access to global financial and commodities markets, improving price discovery, liquidity, and distribution of ...

We're looking for a Senior Software Engineer to join a growing AI team and take ownership of the application and integration layer behind a new generation of AI-powered products. This is a genuinely ...

work collaboratively with designers and back-end developers, ensuring best practices in development and code quality are followed. Bonus points for experience with WebSockets or gaming applications. #J-18808-Ljbffr ...

About aion Aion is the enterprise AI platform, a full-stack solution for building, fine-tuning, and deploying AI at scale. Whether an organization is modernizing internal operations, launching AI-powered products, or transforming customer ...

clean architecture, and production-grade code System design skills - you can design scalable, maintainable systems and articulate trade-offs clearly API design expertise - REST, WebSockets/SSE, and understanding of distributed systems patterns Database proficiency - SQL and NoSQL (DynamoDB, PostgreSQL, OpenSearch), including query optimization and data modeling Testing mindset … with LLM observability (Langfuse), token management, streaming, and reliability patterns AWS expertise - Lambda, ECS, DynamoDB, OpenSearch, Bedrock, or similar cloud services Streaming architectures - SSE, WebSockets, event-driven systems Fintech/compliance background - AML, sanctions screening, KYC, or regulated industry experience Micro-frontend experience - Module Federation, independent deployability Infrastructure as Code ...

Waterloo, London (Hybrid) £600 - £748 per day (Inside IR35) Initial 6-Month Contract | Extensions Available up to 3 Years We are partnering with a leading global trading organisation seeking a Senior C++ FIX Protocol & Exchange ...

You are pioneering and innovative and want to be part of the cutting-edge and disruptive crypto-currency world You enjoy end-to-end application development from requirement collection to production support You are eager ...

delivery plans. Own the front end architecture (React + TypeScript + RxJS), including state management, observables, and data flow design for live market data (WebSockets/Server Sent Events). Design and implement modular, testable, and reusable components and design system primitives aligned to accessibility (WCAG 2.1 AA+). Drive … . What we are looking for: Solid years building web applications with TypeScript and React; 3+ years in a senior/lead role. WebSockets, Server-Sent Events, WebRTC or other high performance bidirectional data streaming experience. GraphQL, Protobuf, Flatbuffers or other schema-driven API design tools. Strong RxJS (or equivalent ...

Overview Fuse Energy is a forward-thinking renewable energy startup on a mission to deliver a terawatt of renewable energy quickly. We are building an integrated energy system spanning solar, wind, hydrogen projects, real-time ...

You are pioneering and innovative and want to be part of the cutting-edge and disruptive crypto-currency world You enjoy end-to-end application development from requirement collection to production support You are eager ...

About Wintermute Wintermute is one of the largest crypto native algorithmic trading companies in digital assets. We provide liquidity across most cryptocurrency exchanges and trading platforms, a broad range of OTC trading solutions as well ...

part of a fast-paced, innovative team building web-based gaming applications. You’ll work with technologies such as TypeScript, React, Redux, Zustand, WebSockets, and Vite, contributing to a modular and scalable front-end architecture. We’re looking for someone with a proactive mindset, who values clean code, collaboration … control systems like Git. Understanding of programming best practices (e.g., DRY, KISS, SOLID). Experience working in Agile environments. Bonus points for Experience with WebSockets or real-time data streams. Exposure to gaming or interactive applications. Familiarity with micro frontends or private npm libraries #J-18808-Ljbffr ...