1 to 25 of 119 WebSockets Jobs in the UK

Senior Full-Stack Developer (Bath Area)

Location
Bath, England, United Kingdom
Good understanding of cloud deployment Strong understanding and proven experience working with browsers and web APIs including HTML Canvas, Drag and Drop, SSE, WebSockets, etc. Effective communication skills through written reports and presentations. Ability to version control code using tools such as Git, GitHub and Azure DevOps in a collaborative ...

Senior Full-Stack Developer

Location
City Of London, England, United Kingdom
Good understanding of cloud deployment Strong understanding and proven experience working with browsers and web APIs including HTML Canvas, Drag and Drop, SSE, WebSockets, etc. Effective communication skills through written reports and presentations. Ability to version control code using tools such as Git, GitHub and Azure DevOps in a collaborative ...

Senior Software Engineer (Full Stack)

Location
Belfast City District, Northern Ireland, United Kingdom
CSS3 and modern JavaScript frameworks. Experience developing backend services and APIs using TypeScript or another object-oriented language. Strong knowledge of REST APIs, GraphQL, WebSockets and microservices architecture. Commercial experience with AWS services, ideally Lambda, Fargate, API Gateway and AppSync. Experience with SQL and NoSQL databases, messaging technologies and event ...

Senior Software Engineer - Elements

Location
United Kingdom
security best practices and compliance requirements (OAuth2, OIDC, RBAC) Experience with event-driven architectures Experience in GraphQL APIs and real-time communication (SignalR, WebSockets) Exposure to DevOps processes and automation ensuring end-to-end responsibility of features Advanced cloud certifications in Azure or AWS Why You’ll Love Working Here ...

Software Developer | Capital Markets

Location
Greater London, England, United Kingdom
Technologies/Infra : Docker, Kubernetes, Kafka, Azure, GCP, NoSQL, DNS Design : Serverless, cloud-native/PaaS, event driven, pub/sub, real-time/websockets, architectural design records (ADRs) SDLC : Agentic AI/Context Engineering; CoPilot, Claude, Codex, building custom agents across full SDLC Experience working in a regulated environment ...

Lead Software Engineer

Location
Bournemouth, Hampshire, United Kingdom
challenges with minimal supervision. Experience working with cloud platforms (e.g., AWS, Azure, GCP), distributed systems, and web technologies, including RESTful APIs and web services, WebSockets, and JSON. Hands-on experience designing and building scalable applications using SQL and NoSQL databases. Understanding of application resiliency Demonstrated experience leading effective ...

Senior Python Developer/ Engineer

Location
City of Westminster, England, United Kingdom
Have Skills: Experience with React/NextJS. Experience with automated testing frameworks such as Pytest, Unit Testing, Integration Testing, and API Testing. Exposure to WebSockets, event‐driven architectures, or real‐time data patterns. Familiarity with modern authentication approaches such as OAuth2, OpenID Connect, JWT, and AWS Cognito. Experience with OpenAPI ...

Senior Backend Engineer - Investment Technology

Location
City Of London, England, United Kingdom
authorization standards (OAuth2, OIDC, JWT) and secure service design.Messaging and Real-Time Data — Experience with Kafka, MQ or similar messaging platforms, or with WebSockets and streaming architectures.API Management — Experience with API gateways, documentation tooling (e.g. OpenAPI/Swagger) and developer onboarding for shared services.Previous asset management/financial services experience ...

Senior Software Engineer

Hiring Organisation
FryerMiles Recruitment
Location
Newcastle, Staffordshire, West Midlands, United Kingdom
Employment Type
Permanent Contract, On-site
Salary
£90,000
practices. First-class or 2:1 degree in Computer Science, Engineering, Physics, Mathematics or a related discipline from a Russell Group university. Desirable Experience WebSockets, SignalR or similar real-time technologies. AI-assisted software development tools. Defence or National Security experience. Essential Requirements UK national and eligible to obtain ...

Software Development Engineer

Location
Cambridge, England, United Kingdom
backend, modern TypeScript with React (or comparable) on the frontend. Designing and working with APIs and real‐time data streams (REST and WebSockets). Comfortable owning deployment and operations across Linux, Docker, CI/CD, cloud (AWS) and on‐premise. Fluency with AI‐assisted (agentic) coding tools, and the judgment ...

Lead Software Engineer - Equities Prime Sec Lending Technology Glasgow

Location
Glasgow, Scotland, United Kingdom
Hands-on experience designing and building enterprise-scale, high-volume data processing applications using SQL databases such as Oracle. Knowledge of RESTful Web Services, WebSockets, and JSON. Advanced proficiency in front-end languages and libraries (e.g., C#, React) and back-end languages and frameworks (e.g., Java, Spring, Python), with practical ...

Full-Stack Engineer ×5

Location
Greater London, England, United Kingdom
help grow a shared component library. The interface respects a detailed role- and permission-based access model, and real-time views over WebSockets handle loading, empty, error and stale-data states with care. The services and data You design and build REST services in async Python with FastAPI or Django ...

Software Developer

Hiring Organisation
Gleeson Recruitment Group
Location
Wolverhampton, West Midlands, West Midlands (County), United Kingdom
Employment Type
Permanent
Salary
£45000/annum
databases, and CI/CD pipelines. Experience designing and developing RESTful APIs using C# and .NET. Familiarity with real-time communication technologies, such as WebSockets or Socket.io. Please apply asap if interested - Software Developer - GleeIT At Gleeson Recruitment Group, we embrace inclusivity and welcome applicants of all backgrounds, experiences ...

AI/ML & Systems Engineer

Location
Cambridge, England, United Kingdom
delivering against technical milestones. Desirable React, Grafana or Plotly/Dash AWS, Azure or GCP Docker/containerisation FastAPI/Flask, REST APIs or WebSockets Git/GitHub Actions/GitLab CI Real-time data visualisation and geospatial data Why Join? Work alongside an exceptional technical founder - collaborate directly with ...

AI Engineer, London

Location
Greater London, England, United Kingdom
environments. You have a sharp eye for UI/UX design and have built intuitive, AI-driven interfaces. You have experience with GraphQL, WebSockets, or real-time data streaming. You’ve contributed to open-source projects or have built developer tools for AI. #J-18808-Ljbffr ...

Senior Software Engineer (Full Stack)

Location
Belfast City District, Northern Ireland, United Kingdom
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 … 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 ...

Senior Software Engineer (Full Stack)

Location
Belfast City District, Northern Ireland, United Kingdom
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 ...

Python Developer - SC Cleared

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Bristol, Stoke Gifford, Gloucestershire, United Kingdom
Employment Type
Contract
Contract Rate
£65 - £70/day
optimisation Experience developing low-latency, high-throughput systems Strong troubleshooting and root-cause analysis skills Experience with event-driven and streaming architectures (Kafka, RabbitMQ, WebSockets) API development using FastAPI, Flask or Django Hands-on experience with Kubernetes and Docker Strong understanding of concurrency, asyncio, multiprocessing and threading Solid software architecture ...

Python Developer

Hiring Organisation
Advanced Resource Managers Limited
Location
Bristol, Avon, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
throughput, and tuning concurrency (asyncio, multiprocessing, threading) Experience building near real-time systems, such as event-driven or streaming architectures (e.g., Kafka, RabbitMQ, WebSockets) Desired Skills Cloud experience (AWS, Azure or GCP), including managed Kubernetes (EKS, AKS, GKE) Performance optimisation with Cython, Rust or C extensions Disclaimer: This vacancy ...

Product Designer

Location
United Kingdom
tooling, testing infrastructure, and CI/CD practices. Qualifications Must-haves: Deep expertise in TypeScript and React. Experience with real-time data systems (WebSockets, streaming feeds, live order books). Strong grasp of state management patterns (Redux, Zustand, React Query). Comfortable working from Figma through to production. AI-native ...

Senior AI Platform Engineer - MCP AWS Agentic AI

Hiring Organisation
Method-Resourcing
Location
South East, United Kingdom
Employment Type
Temporary Contract, Hybrid
ownership of complex engineering projects, making architectural decisions and mentoring other engineers. Desirable: Python, FastAPI, LangGraph, LangChain or similar AI frameworks. JSON-RPC, SSE, WebSockets and event-driven architectures. Experience with RAG, LLM function calling and context management. An interest in sport and the sports betting industry. Why Consider This ...

Embedded Software Engineer - Connected Energy Devices

Location
Greater London, England, United Kingdom
systems. Responsibilities 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. Develop low-level firmware and drivers for microcontrollers and embedded peripherals. Integrate devices with cloud IoT platforms ...

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 Financial Software Consultant

Location
Greater London, England, United Kingdom
below is required. Java 17+ and Kafka (or a comparable streaming platform) are essential. Languages: Java 17+, Python Frameworks and protocols: Spring, Kafka, REST, WebSockets Databases: Oracle, PostgreSQL, CockroachDB, Cassandra, MongoDB Infrastructure: Kubernetes, AWS, Azure Agentic AI: Claude Code, Copilot Agentic Mode, OpenAI Codex Observability: Splunk, Dynatrace, Grafana About ...

Web Developer

Location
Greater London, England, United Kingdom
real-time messaging on the Web, including low level protocol and API design Exposure to the following would be advantageous: RxJS, Webpack, Storybook & Websockets Knowledge of Java would be beneficial but is not a necessity Passion for UX and Interaction design Strong communication skills Relevant academic qualifications, including a college ...