26 to 50 of 169 WebSockets Jobs in the UK

Frontend Architect - React AI

Hiring Organisation
HCLTech
Location
City of London, London, 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 ...

React Developer

Location
Greater London, England, United Kingdom
platform architecture. Awareness and proficiency in security best practices and accessibility. Experience in using UI component libraries such as Material UI. Experience working with WebSockets and handling binary communication protocols. Proficiency in testing, such as the React Testing Library/Jest. Understanding of frontend performance optimisation. Proficiency in source version ...

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

Hiring Organisation
Fuse Energy Supply
Location
London, United Kingdom
Salary
£ 80 K
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 PTPDevice security and OTA management: contribute to secure boot flows, key and certificate provisioning and hardware-backed device identity ...

Staff Software Engineer - Backend

Hiring Organisation
DataBricks
Location
London, United Kingdom
Salary
£ 80 K
edge that every customer touches. The proxy handles all client connections and transfers every byte of query traffic, serving every data protocol: Postgres, HTTP, WebSockets, and Data API. We route and manage large volumes of concurrent connections, solving load balancing, authentication, and data access at high throughput. We focus ...

Senior Frontend Engineer

Location
City Of London, England, United Kingdom
source maps. A background in regulated financial services, KYC/KYB or client onboarding. Storybook, or another documented component library. Real-time updates over WebSockets or SignalR. If you've done any of it, say so. If you haven't, we'd rather teach you that than compromise ...

Software Engineer - Data & AI

Location
Woking, England, United Kingdom
What to Expect Working within the Data & AI capability team, this role designs, builds, and operates full-stack, AI-enabled software, with a strong frontend focus. You build the user-facing products and interfaces that ...

Senior UI Engineer

Hiring Organisation
McGregor Boyall
Location
London, United Kingdom
Salary
£ 100 K
updates and deep linking.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 ForStrong software engineering background.Proven experience building production Electron applications.Strong JavaScript/TypeScript ...

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

Hiring Organisation
HCLTech
Location
London Area, 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 ...

Senior Software Engineer - Scientific / HPC

Hiring Organisation
Technical Futures Ltd
Location
Cambridge, Cambridgeshire, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £90,000 per annum
Ansible, OpenTofu). Modern Python tooling and packaging such as uv. Data storage and pipelines, including large simulation results and model serving. API, REST, WebSockets such as FastAPI. Hybrid working available (3 days office/2 WFH), a very generous base salary dependent on your level of skills and experience ...

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 ...

Senior Web Developer - Tools

Location
City of Edinburgh, Scotland, United Kingdom
experience in professional web development. 5+ years of experience using React. 5+ years of experience using .NET. Experience with real‐time technologies e.g. WebSockets, SignalR. Experience with automated testing, shared code, and source control. Knowledge of Agile, software development, and web‐security best practices. Passion for web technologies ...

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 ...

Senior Web Developer - Tools

Hiring Organisation
Rockstar Games
Location
Dundee, Angus, United Kingdom
Salary
£ 70 K
5+ years of experience in professional web development.5+ years of experience using React.5+ years of experience using .NET.Experience with real-time technologies e.g. WebSockets, SignalR.Experience with automated testing, shared code, and source control.Knowledge of Agile, software development, and web-security best practices.Passion for web technologies and a desire to remain ...

Senior Web Developer - Tools

Hiring Organisation
Rockstar Games
Location
Edinburgh, Midlothian, United Kingdom
Salary
£ 70 K
5+ years of experience in professional web development.5+ years of experience using React.5+ years of experience using .NET.Experience with real-time technologies e.g. WebSockets, SignalR.Experience with automated testing, shared code, and source control.Knowledge of Agile, software development, and web-security best practices.Passion for web technologies and a desire to remain ...

Senior Web Developer - Tools

Hiring Organisation
Rockstar Games
Location
Edinburgh, UK
Employment Type
Full-time
5+ years of experience in professional web development.5+ years of experience using React.5+ years of experience using .NET.Experience with real-time technologies e.g. WebSockets, SignalR.Experience with automated testing, shared code, and source control. Knowledge of Agile, software development, and web-security best practices. Passion for web technologies and a desire ...

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 ...

Lead Engineer

Hiring Organisation
Deutsche Bank
Location
Greater London, United Kingdom
Employment Type
Full Time
e.g. vite, nx, playwright) Hands-on experience delivering low-latency, event-driven UIs that handle large, rapidly changing data sets, leveraging technologies such as WebSockets, SSE and Rx Strong understanding of distributed system design principles, event-driven architectures, and technologies such as Solace, Kafka or RabbitMQ Solid experience in designing ...

Back-End Engineer, Trading

Hiring Organisation
Blockchain
Location
London, United Kingdom
Salary
£ 80 K
WILL NEEDProfessional 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 or third ...

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 - k6 Core | United Kingdom | Remote

Location
United Kingdom
completion Clear technical communication skills, especially in code reviews and design discussions A good understanding of internet protocols such as HTTP, gRPC, and WebSockets, with some familiarity with lower-level networking concepts Experience with modern development practices, including testing, code review, and iterative development Bonus Points ...

Senior Software Engineer | Voice | Full-Stack

Hiring Organisation
DeepL
Location
London, United Kingdom
Salary
£ 80 K
frontend, and shipping backend services in Node.js/TypeScript (or a strongly transferable language, with willingness to ramp) on the backend.Real-time: WebRTC, WebSockets, streaming architectures, latency-sensitive systems.High Agency: You don't wait for permission. If the billing reconciliation process is slow, you automate it. If the documentation ...

Director Data & Analytics API Experience - Data Services

Hiring Organisation
CME- Group
Location
Belfast, Down, United Kingdom
Salary
£ 80 K
Expertise: Highly proficient in Python, with the ability to write clean, idiomatic, and robust code for public consumption.Technical StackEnvironment: Google Cloud Platform (GCP), Apigee.Protocols: WebSockets, REST, GCS.Tooling: Python (Expert), OAuth 2.0, GitHub, Protobuf/Avro, SQL.Company Benefits:Bonus ProgrammeEquity ProgrammeEmployee Stock Purchase Plan (ESPP)Private Medical and Dental coverageMental Health ...