1 to 25 of 120 WebSockets Jobs in England

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 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 ...

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 ...

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 ...

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/ ...

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 ...

Frontend Architect - React AI

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 ...

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
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 ...

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 ...