1 to 25 of 68 WebSockets Jobs in the UK

Software Developer | Capital Markets

Hiring Organisation
Jobleads-UK
Location
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 ...

C++ Software Developer | Data Infrastructure

Hiring Organisation
Ncounter Limited
Location
E1, Mile End and Globe Town, Greater London, United Kingdom
Employment Type
Permanent
Salary
£160000 - £180000/annum plus Bonus & Package
High-performance microservices Data infrastructure and analytics pipelines Bonus points for SQL Boost ASIO Apache Arrow, Parquet, Protocol Buffers or FlatBuffers gRPC, REST or WebSockets Docker, Kubernetes, AWS or Google Cloud Rust, Python or Q This is an opportunity to solve complex engineering problems in an environment where software performance ...

AI Engineer / Machine Learning Engineer / Generative AI Engineer (Azure)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Typescript, React, Redux, Java Experience with LLM’s including realtime models Experience with Docker, Container Apps, containerised distributed systems, Terraform, Kafka, New Relic, MCP, Websockets Experienced in writing automated tests and maintaining CI/CD pipelines Proven experience of source and version control tools such as GitHub Be experienced working ...

Product Engineering - Team Lead

Hiring Organisation
Jobleads-UK
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

Hiring Organisation
Jobleads-UK
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 (Fluent in Mandarin & English)

Hiring Organisation
Jobleads-UK
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 ...

Lead Software Engineer

Hiring Organisation
Script and Dot Ltd
Location
Portsmouth, Hampshire, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £75,000 per annum
JavaScript HTML, CSS, XML and JSON Windows and Linux development Backend technologies (Node.js, Django or similar) Docker and containerisation TCP/IP networking and WebSockets SQL and database technologies Software debugging and diagnostic tools Cyber security principles Desirable Experience with any of the following would be beneficial: Real-time ...

Senior C++ Network Engineer – Real-Time SDK

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
will work across Windows and Linux with cloud deployments on Azure or AWS. The ideal candidate has strong C/C++ skills, experience with websockets and JSON, and familiarity with Kubernetes, Docker, and CI/CD #J-18808-Ljbffr ...

Frontend Software Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
seriously — every single day Tech Stack Languages: TypeScript, JavaScript (ES6+) Frameworks: React, Redux (or similar state management) Tooling: Webpack, Babel, Jest, ESLint, Git Bonus: WebSockets, performance profiling, custom charting (D3.js, Highcharts) What They’re Looking For Deep expertise with React and modern TypeScript/JavaScript Strong architectural thinking, performance tuning ...

Principal AI Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
data infrastructure that directly feeds ML models or AI agent systems Familiarity with prompt engineering, fine-tuning, or AI model optimisation Real-time systems, WebSockets, or live data pipelines Experience with real-time location/proximity data (Bluetooth/RFID/UWB-based systems) Prior experience in a platform/ ...

Back-End Engineer, Trading

Hiring Organisation
Jobleads-UK
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 ...

Senior PHP Developer

Hiring Organisation
Ascent Resourcing Limited
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £65,000 per annum
Experience with AI classifiers, large language models or machine-learning pipelines. Working with transcription, telephony or other high-volume communications datasets. Event-driven architectures, WebSockets or real-time application functionality. Integrations involving CRM, telephony or property-technology platforms. AWS technologies including S3, RDS, EC2, Lambda, ECS and CloudWatch. Experience working ...

Senior PHP Developer

Hiring Organisation
Ascent Resourcing Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £65,000 per annum
Experience with AI classifiers, large language models or machine-learning pipelines. Working with transcription, telephony or other high-volume communications datasets. Event-driven architectures, WebSockets or real-time application functionality. Integrations involving CRM, telephony or property-technology platforms. AWS technologies including S3, RDS, EC2, Lambda, ECS and CloudWatch. Experience working ...

Principal Engineer, CoinDesk Data Engineering

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
experience designing, building, and operating complex, large-scale distributed systems. You should have specific experience with both synchronous (e.g. REST APIs) and asynchronous (e.g. WebSockets, message queues like Kafka or RabbitMQ, event streams) communication patterns. Operational Resilience: Experience with High Availability or sophisticated disaster recovery strategies for global, 24/ ...

Principal Engineer, CoinDesk Data Engineering

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
experience designing, building, and operating complex, large‐scale distributed systems. You should have specific experience with both synchronous (e.g. REST APIs) and asynchronous (e.g. WebSockets, message queues like Kafka or RabbitMQ, event streams) communication patterns. Operational Resilience: Experience with High Availability or sophisticated disaster recovery strategies for global, 24/ ...

Senior Software Engineer - k6 Core | United Kingdom | Remote

Hiring Organisation
Jobleads-UK
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 ...

Real-Time Backend Engineer | Crypto Trading Platform (London)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
time client APIs, collaborating closely with product, frontend, and trading teams. Applicants should have Kotlin or Python backend experience, proficiency with REST APIs and WebSockets, and knowledge of SQL, Docker/Kubernetes, and AWS. #J-18808-Ljbffr ...

Full Stack Developer

Hiring Organisation
SRG
Location
City of London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
Competitive salary
way. 6+ years' full stack development experience Strong Angular, Strong C# .NET Solid grounding in SOLID principles, clean code and software craftsmanship Experience with WebSockets; Git and Jira; XL Deploy/XL Release a bonus SQL Server and investment banking experience advantageous An agile mindset and genuine care for code ...

Lead Software Engineer

Hiring Organisation
Script and Dot
Location
Portsmouth, Hampshire, United Kingdom
Employment Type
Permanent
Salary
£75000/annum
engineering/software degree or equivalent experience Technical Environment The environment includes technologies such as C++, Python, Linux, Windows, Docker, TCP/IP, UDP, WebSockets and SQL, alongside real-time systems, control software and hardware integration. Direct robotics experience isn’t essential. We’re also interested in people from defence ...

Front End Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
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 asPina ...

Senior Full-Stack Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Redis Understanding of cloud services (AWS, Vercel, or similar) Excellent problem‐solving and communication skills Nice to Have Experience with real‐time systems and WebSockets Knowledge of payment processing (Stripe) Previous experience in ticketing or events industry Contributions to open‐source projects Benefits Competitive salary with equity options. Flexible hybrid ...

Director Data & Analytics API Experience - Data Services

Hiring Organisation
Jobleads-UK
Location
Belfast, Northern Ireland, United Kingdom
code for public consumption. Experience designing and building cloud‐native SDKs and APIs on Google Cloud Platform (GCP), Apigee, and related technologies. Familiarity with WebSockets, REST, GCS, OAuth 2.0, GitHub, Protobuf/Avro, and SQL. Polymathic ability to bridge business strategy, engineering, and technical writing. Demonstrated problem‐solving skills ...

Software Engineer, Front End Leaning, Agents

Hiring Organisation
Jobleads-UK
Location
United Kingdom
application logic. Experience with backend technologies such as Node.js to support end-to-end feature development. Familiarity with real-time application patterns, including WebSockets or live collaboration experiences. Strong product mindset with the ability to understand user needs and challenge solutions when necessary. Ability to work effectively in a collaborative ...

Java Development Lead - Front Office Electronic Trading

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
backend software engineers with experience building complex, distributed systems. You'll ideally have experience with: Core Java Spring Framework Event-driven architecture (Kafka, Solace, WebSockets or similar) Distributed systems Domain-Driven Design (DDD) SOLID principles and design patterns Cloud-native development CI/CD and modern engineering practices AI-assisted ...

Software Engineer (Indexer Focus)

Hiring Organisation
Jobleads-UK
Location
United Kingdom
SQLite (standalone), and keep latency and throughput healthy as the chain grows. Evolve the GraphQL API — queries, mutations, and real‐time subscriptions over WebSockets — with care for the wallet model: secure sessions and correct handling of shielded data. Write and maintain unit, integration, and end‐to‐end tests; treat reliability ...