1 to 25 of 104 WebSockets Jobs in London

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 ...

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 ...

Senior Front-End Developer (React, TypeScript) - VP, FX Options Pricing

Location
Greater London, England, United Kingdom
Vue.js would also be considered). Inter-Application Communication: Solid understanding of building applications that handle real-time data, using technologies like REST APIs, WebSockets , or middleware (e.g., Solace, Kafka, TIBCO). Engineering Excellence: Proficiency in modern software engineering practices, including CI/CD, automated testing, application resiliency, performance profiling ...

Full Stack Software Engineer

Hiring Organisation
McGregor Boyall
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £100,000 per annum
gaining exposure to cutting-edge AWS architecture and engineering best practices. Key Skills: TypeScript React, Redux, React Query HTML5, CSS3, Tailwind REST APIs, GraphQL, WebSockets AWS (Lambda, Fargate, API Gateway, AppSync) Terraform, CI/CD, Containerisation SQL & NoSQL databases Git and automated testing Experience Required: Commercial experience as a Full ...

Java Software Engineer

Hiring Organisation
Intec Select
Location
City of London, Greater London, UK
technical leader, raising the bar across engineering standards and design decisions Tech Environment Java | React (Vite, NX) | Kafka/Solace/RabbitMQ | WebSockets/SSE | Rx | Kubernetes | SQL About You You are a strong technologist and technical leader with a passion for building high-performance systems in complex environments. ...

Product Engineering - Team Lead

Location
Greater London, England, United Kingdom
data pipelines using languages such as Node.js, Python, Go, or similar. Solid understanding of end‐to‐end system architecture: APIs, microservices, event‐driven architectures, WebSockets, message queues, databases, and how frontend and backend systems work together in high‐performance environments. Experience with infrastructure and DevOps fundamentals: CI/CD, cloud ...

Product Engineering - Team Lead

Location
Greater London, England, United Kingdom
data pipelines using languages such as Node.js, Python, Go, or similar. Solid understanding of end‐to‐end system architecture: APIs, microservices, event‐driven architectures, WebSockets, message queues, databases, and how frontend and backend systems work together in high‐performance environments. Experience with infrastructure and DevOps fundamentals: CI/CD, cloud ...

AI Engineer, London

Location
Greater London, England, United Kingdom
high-performance startups or enterprise AI environments. Sharp eye for UI/UX design and having built intuitive, AI-driven interfaces. Experience with GraphQL, WebSockets, or real-time data streaming. Contributions to open-source projects or building developer tools for AI. #J-18808-Ljbffr ...

VP Lead Engineer

Hiring Organisation
INTEC SELECT LIMITED
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£120,000 - £130,000 per annum
technical leader, raising the bar across engineering standards and design decisions Tech Environment Java | React (Vite, NX) | Kafka/Solace/RabbitMQ | WebSockets/SSE | Rx | Kubernetes | SQL About You You are a strong technologist and technical leader with a passion for building high-performance systems in complex environments. ...

cloud engineer for connected devices

Location
Greater London, England, United Kingdom
Player engineering team. Technical skills: TypeScript, Python, Go, AWS services including Lambda, DynamoDB, CloudWatch, and SNS/SQS, AWS CDK, MQTT, HTTP/REST, WebSockets, Docker, Git, and AWS CodePipeline or similar CI/CD tools. Nice to have: AWS IoT Core, Kinesis data streaming, message queues, serverless architectures, Docker ...

ml engineer for GenAI tools

Location
Greater London, England, United Kingdom
chromadb, LLM RAG/Agent concepts, Neo4J, GraphQL, CI/CD tools such as GitHub Actions or GitLab CI, AWS Managed Services, FastAPI, NextJS, WebSockets, Server-Side Events, Pub/Sub, RabbitMQ, Kafka. Условия: Base salary range for the Boston location: $173,000 - $211,000; Annual discretionary performance bonus ...

Senior Front-End Engineer React

Hiring Organisation
Halian Technology Limited
Location
Central London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
tracking platforms Azure Static Web Apps Azure DevOps CI/CD pipelines Vite performance optimisation and bundle analysis Storybook or other component documentation platforms WebSockets or SignalR Client onboarding platforms KYC/KYB workflows Regulated financial services environments If you don't have industry-specific experience but are an exceptional ...

AI Engineer (Fluent Portuguese & English)

Hiring Organisation
Chubb
Location
London, UK
Employment Type
Full-time
First Token) and maximize throughput. This includes implementing quantization, caching strategies, and efficient batching. Production Engineering: Build and maintain real-time AI pipelines using WebSockets and SSE, ensuring seamless low-latency delivery for voice (ASR/TTS) and text applications. Architecture & MLOps: Deploy and orchestrate models within containerized microservice architectures ...

AI Engineer (Fluent in Mandarin & English)

Location
Greater London, England, United Kingdom
First Token) and maximize throughput. This includes implementing quantization, caching strategies, and efficient batching. Production Engineering: Build and maintain real-time AI pipelines using WebSockets and SSE , ensuring seamless low-latency delivery for voice (ASR/TTS) and text applications. Architecture & MLOps: Deploy and orchestrate models within containerized microservice architectures ...

Front End Engineer

Hiring Organisation
Interactive Brokers
Location
London, UK
Employment Type
Full-time
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 ...

Senior Full Stack Engineer (Java + React)

Location
Greater London, England, United Kingdom
software quality.- Experience working in Agile environments with CI/CD, trunk-based development, and frequent production releases.- Experience building real-time applications using WebSockets or streaming technologies.- Ability to contribute to architectural discussions and operate independently in complex production environments. Nice to have - Kafka, Solace, or TIBCO EMS. ...

Front End Developer

Location
Greater London, England, United Kingdom
experience improvements; all to drive more business safely. You must have a successful experience developing real-time web front ends using both REST and websockets APIs. We are particularly looking for developers with an excellent knowledge and understanding of the software engineering fundamentals as well as strong solution design skills ...

Senior C++ Engineer – Trading

Hiring Organisation
Certain Advantage
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£700.00 - £750.00 per day
performance derivatives trading across international markets. You'll be responsible for: Developing low-latency exchange connectivity using native exchange APIs and protocols including FIX, WebSockets and HTTP. Building and enhancing high-performance trading algorithms alongside traders and quantitative analysts. Optimising application performance through techniques such as kernel bypass, TLS optimisation ...

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 ...

Embedded Software Engineer

Hiring Organisation
Fuse Energy Supply
Location
London, UK
Employment Type
Full-time
ResponsibilitiesConnectivity and networking: develop and maintain connectivity across Ethernet, Wi-Fi, Thread, Zigbee and BLE; build secure, reliable device messaging using MQTT, CoAP, 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 ...

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 ...

Staff Software Engineer - Backend

Hiring Organisation
DataBricks
Location
London, UK
Employment Type
Full-time
network edge that every customer touches. The proxy handles all client connections and transfers every byte of query traffic, serving every data protocol: Postgres, 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 ...

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 ...

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 ...