26 to 50 of 115 WebSockets Jobs in the UK

IT Software Engineer Developer

Location
Wolverhampton, England, United Kingdom
platforms (App Services, databases, CI/CD pipelines). Experience with RESTful API design in C#/.NET. Exposure to real-time technologies (e.g., WebSockets/Socket.io). About Us GSF Car Parts is one of the UK’s leading automotive parts distributors, supplying thousands of independent garages throughout ...

Embedded Software Engineer

Location
Greater London, England, United Kingdom
networking: develop and maintain connectivity across Ethernet, Wi-Fi, Thread, Zigbee and BLE; build secure, reliable device messaging using MQTT, CoAP, HTTP or WebSockets; support device time synchronisation using NTP or PTP Device security and OTA management: contribute to secure boot flows, key and certificate provisioning and hardware-backed device ...

Senior UI Engineer

Hiring Organisation
McGregor Boyall Associates Limited
Location
South East, United Kingdom
Employment Type
Permanent, Work From Home
Integrate AI-powered features via backend APIs. Optimise startup time, memory usage and overall performance. Manage local state and message history efficiently. Work with WebSockets and other real-time technologies. Troubleshoot complex desktop and production issues. What We're Looking For Strong software engineering background. Proven experience building production Electron ...

Frontend Architect - React

Location
City Of London, England, United Kingdom
testing, and deployment. Technical Skills & Expertise- Frontend Technologies: Expert-level proficiency in HTML, CSS, JavaScript, React, and TypeScript Real-Time Communication: Strong understanding of WebSockets, Server-Sent Events (SSE), and REST APIs State Management & Programming: Solid experience with state management libraries (e.g., Redux) and reactive programming paradigms Architecture: Strong understanding ...

Frontend Software Engineer

Location
Greater London, England, United Kingdom
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 ...

Front End Developer

Location
Greater London, England, United Kingdom
trading/finance experience. Preferred Qualifications & Experience Experience building Single Page Applications (SPAs). Experience with Material UI or similar component libraries. Familiarity with WebSockets and real-time applications. Knowledge of CI/CD pipelines and end-to-end testing frameworks. Work in a high-impact startup environment where your ...

frontend js/react/typescript in fintech

Location
Greater London, England, United Kingdom
build and bundle work, regulated financial services or KYC/KYB or client onboarding, Storybook or another documented component library, real-time updates over WebSockets or SignalR Must be eligible to work in the UK Условия: 25 Days’ annual leave plus bank holidays An extra day off for your birthday ...

Back-End Engineer, Trading

Location
Greater London, England, United Kingdom
Professional experience building backend services, ideally in Kotlin and/or Python. Solid experience designing and building backend services and REST APIs; experience with WebSockets or other real-time streaming protocols such as NATS/JETSREAM is a plus. Working knowledge of SQL and experience integrating with multiple internal ...

Senior (iOS) Software Engineer

Location
Greater London, England, United Kingdom
Strong grasp of iOS architecture (e.g., MVVM, Clean Architecture, modularization) suitable for AI‐powered, stateful, and real‐time features Solid understanding of JSON , REST , WebSockets, streaming APIs and robust networking layers (error handling, retries, offline support) Experience with offline storage , background processing, threading and push notifications Curiosity about new interaction ...

Senior (iOS) Software Engineer

Location
Greater London, England, United Kingdom
Strong grasp of iOS architecture (e.g., MVVM, Clean Architecture, modularization) suitable for AI‐powered, stateful, and real‐time features Solid understanding of JSON , REST , WebSockets, streaming APIs and robust networking layers (error handling, retries, offline support) Experience with offline storage , background processing, threading and push notifications Curiosity about new interaction ...

Senior Software Engineer | Voice | Full-Stack

Location
Greater London, England, United Kingdom
comfortable prototyping a feature in the morning and refactoring it for scale in the afternoon. Depth in real time systems. Real experience with WebRTC, WebSockets, streaming architectures or latency sensitive systems in production, and a working understanding of where the time actually goes. Full stack fluency with real range. React ...

Director Data & Analytics API Experience - Data Services

Location
Belfast, Northern Ireland, United Kingdom
Python, with the ability to write clean, idiomatic, and robust code for public consumption.**Technical Stack*** Environment: Google Cloud Platform (GCP), Apigee.* Protocols: WebSockets, REST, GCS.* Tooling: Python (Expert), OAuth 2.0, GitHub, Protobuf/Avro, SQL.**Company Benefits:*** Bonus Programme* Equity Programme* Employee Stock Purchase Plan (ESPP)* Private Medical ...

Real-Time Backend Engineer | Crypto Trading Platform (London)

Location
Greater London, England, United Kingdom
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 ...

Senior Software Engineer (C# / .Net) · London ·

Location
Greater London, England, United Kingdom
Storage , and data-modelling trade-offs API design : RESTful contracts, versioning, webhooks, long-running operations (202 Accepted patterns) Real-time & frontend integration : SignalR/WebSockets, SPA frameworks (Vue/Nuxt or similar), TypeScript What good looks like You leave systems clearer, more correct, and easier to evolve Problems are solved ...

Senior Backend Engineer

Location
Greater London, England, United Kingdom
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 ...

Senior Software Engineer (iOS)

Location
Greater London, England, United Kingdom
latency, fallbacks, guardrails) and/or conversational UXSwiftUI for building production UIs; familiarity with UIKit and interoperability is a plusSolid understanding of JSON, REST, WebSockets, streaming APIs and robust networking layers (error handling, retries, offline support)Strong grasp of iOS architecture (e.g., MVVM, Clean Architecture, modularization) suitable for AI‐powered ...

Senior Frontend Engineer (m/f/d)

Location
Greater London, England, United Kingdom
development tools, concepts, and practices. Basic knowledge of backend systems and API integration. Experience with custom web-based rendering engines Familiarity with RESTful APIs, WebSockets, and data visualization tools. Ability to write clean, efficient, and well-documented code. Excellent problem-solving skills and a passion for building user-friendly applications ...

Senior Frontend Developer (React & React Native)

Location
Greater London, England, United Kingdom
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 ...

Front End Engineer

Location
Greater London, England, United Kingdom
experience is a strong plus A solid grounding in core computer science fundamentals: data structures, algorithms and system design Experience with real-time data (WebSockets, SSE or similar) is a significant advantage in this role Good to have experience with AG Grid, Prime Vue, UI state management systems such asPina ...

Senior Frontend Architect — Real-Time React & TypeScript

Location
City Of London, England, United Kingdom
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 ...

Senior Full-Stack Engineer

Location
Greater London, England, United Kingdom
Redis Understanding of cloud services (AWS, Vercel, or similar) Excellent problem‐solving and communication skills Nice to Have Experience with real‐time systems and WebSockets Knowledge of payment processing (Stripe) Previous experience in ticketing or events industry Contributions to open‐source projects Benefits Competitive salary with equity options. Flexible hybrid ...

Frontend Engineer London

Location
Greater London, England, United Kingdom
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. ...

Full Stack Software Engineer

Hiring Organisation
Acacia Green Technologies
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
About Acacia Acacia Green Technologies develops and delivers connected technology for hotels and other complex buildings. Our work brings together hospitality television and guest experience platforms, IoT sensors, energy and environmental monitoring, building controls, systems ...

Full Stack Software Engineer

Hiring Organisation
Acacia Green Technologies
Location
EC2M, Broad Street, Greater London, United Kingdom
Employment Type
Permanent
About Acacia Acacia Green Technologies develops and delivers connected technology for hotels and other complex buildings. Our work brings together hospitality television and guest experience platforms, IoT sensors, energy and environmental monitoring, building controls, systems ...

Real-Time React UI Architect - Low-Latency

Location
City Of London, England, United Kingdom
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 ...