1 to 25 of 168 WebSockets Jobs in the UK

Senior Software Engineer - NWX Networx

Hiring Organisation
Iris Software
Location
United Kingdom
Salary
£ 70 K
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 AWSWhy You’ll Love Working HereImpact: Your ...

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 ...

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

Hiring Organisation
Citigroup
Location
London, United Kingdom
Salary
£ 80 K
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, and telemetry.Desirable ...

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 ...

Global AI/ML Engineer Senior Manager

Hiring Organisation
The Boston Consulting Group
Location
London, United Kingdom
Salary
£ 120 K
Managed Services (RDS, Batch, Lambda, Fargate, Step Functions, SQS/SNS, etc.)· FastAPI and NextJS experience (if we’re still using the latter)· Websockets, Server-Side Events, Pub/Sub (RabbitMQ, Kafka, etc.)Who You'll Work With· Squad members of a specific squad, led by a Product Owner.· Tribe ...

Lead Enterprise Technical Architect

Location
Cirencester, England, United Kingdom
optimize AWS cloud environments (EKS, Lambda, RDS, S3, IAM) focusing on resilience, scalability, and cost control. Integration Leadership: Implement REST, event-driven (Kafka), WebSockets, and Salesforce integration patterns. Containers & DevOps: Drive containerized architecture (Docker/Kubernetes) and embed complete CI/CD/DevSecOps lifecycles. Data & AI Architecture: Provide technical ...

Senior Cloud Engineer

Location
Greater London, England, United Kingdom
services including Lambda, DynamoDB, CloudWatch, and SNS/SQS; infrastructure as code via AWS CDK; IoT protocols including MQTT, HTTP/REST, and WebSockets; Docker for containerization; Git for version control; and AWS CodePipeline or similar for CI/CD. Technical skills, nice to have: Rust and C/C++ ...

React.JS Developer – Hedge Fund – Typescript

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 80 K
attitude capable of taking projects from inception to completion.At least a bachelor’s degree in a technical or quantitative field.Stack:Frontend: TypeScript, React, Openfin, WebSockets to build our real-time, multi-window, multi-monitor UI.Backend: Java, Aeron messaging/Aeron Cluster to build our high performance, fault-tolerant systems.Infrastructure: GitHub ...

Front-End Developer – React or Angular (Front Office & Risk Systems)

Location
Greater London, England, United Kingdom
Management of rendering efficiency, responsiveness and latency perception Interaction with event‐driven and streaming data sources Valued Front-End Exposure Real-time UI patterns (WebSockets, streaming APIs or equivalent) Data grids and complex visual components Performance profiling and optimisation techniques Modern build tools and frameworks (Vite, Webpack or equivalent) Unit ...

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. ...

Senior Developer

Location
United Kingdom
secure & robust applications in enterprise environments (Oauth2.0, credential and identity management Navigate delivery of live + timeseries based data analysis pipelines alongside integration with WebSockets and messaging Knowledge of Python, FastAPI and UV-based package management Good experience of git and trunk-based workflow management Degree in engineering, mathematics, physical ...

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 ...

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, United Kingdom
Salary
£ 80 K
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 (Docker/ ...

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, United Kingdom
Salary
£ 80 K
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 (Kotlin + React)

Hiring Organisation
Luxoft
Location
London, United Kingdom
Salary
£ 100 K
trunk-based development, and frequent production releases.Hands-on experience in capital markets, including trade lifecycle and position management.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 haveKafka, Solace, or TIBCO EMS.SQL Server, MongoDB, and S3/ ...

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 Frontend Developer

Location
Greater London, England, United Kingdom
source maps Experience within regulated financial services, KYC/KYB or client onboarding Storybook or another documented component library Real-time updates using WebSockets or SignalR Experience within payments, FX, banking, KYC/KYB, client onboarding or other financial systems would be useful, but isn't essential. ...

Front-End Engineer

Hiring Organisation
Smarkets
Location
London, United Kingdom
Salary
£ 80 K
mobile apps with React Native, all in TypeScript. We manage state with Redux and React Query, stream real-time trading data over WebSockets, and consume REST APIs across our services.ResponsibilitiesDesign, implement and maintain complex features and interfaces across web and mobile (iOS & Android), built with React, React Native and TypeScriptWork ...