WebSockets Jobs in London

1 to 25 of 64 WebSockets Jobs in London

Senior Backend Engineer

London, United Kingdom
Hybrid / WFH Options
Companiongroup
Strong understanding of distributed systems and data structures and algorithms (DSA) 5+ years of professional backend development experience (preferably in the game industry) Solid experience with real-time networking, WebSockets, RPCs, REST APIs, gRPC, etc. Hands-on experience with matchmaking algorithms, player session management, and anti-cheat systems. Deep understanding of database systems, including SQL & NoSQL solutions (PostgreSQL, Redis, MongoDB More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Frontend Engineer

London Area, United Kingdom
algo1
Javascript, Typescript, HTML, and CSS Extensive experience with modern web frameworks and patterns (eg. React, Next.js, Tailwind) Experience with real-time and bi-directional communication protocols and patterns (eg. WebSockets, SSE) Built and deployed services on any major cloud providers' services (Azure, GCP, AWS) AI-Native development: fast iteration & prototyping using AI tools such as Lovable, Bolt, or Cursor as More ❯
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Frontend Engineer

City of London, London, United Kingdom
algo1
Javascript, Typescript, HTML, and CSS Extensive experience with modern web frameworks and patterns (eg. React, Next.js, Tailwind) Experience with real-time and bi-directional communication protocols and patterns (eg. WebSockets, SSE) Built and deployed services on any major cloud providers' services (Azure, GCP, AWS) AI-Native development: fast iteration & prototyping using AI tools such as Lovable, Bolt, or Cursor as More ❯
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Frontend Engineer

london, south east england, united kingdom
algo1
Javascript, Typescript, HTML, and CSS Extensive experience with modern web frameworks and patterns (eg. React, Next.js, Tailwind) Experience with real-time and bi-directional communication protocols and patterns (eg. WebSockets, SSE) Built and deployed services on any major cloud providers' services (Azure, GCP, AWS) AI-Native development: fast iteration & prototyping using AI tools such as Lovable, Bolt, or Cursor as More ❯
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Frontend Engineer

london (city of london), south east england, united kingdom
algo1
Javascript, Typescript, HTML, and CSS Extensive experience with modern web frameworks and patterns (eg. React, Next.js, Tailwind) Experience with real-time and bi-directional communication protocols and patterns (eg. WebSockets, SSE) Built and deployed services on any major cloud providers' services (Azure, GCP, AWS) AI-Native development: fast iteration & prototyping using AI tools such as Lovable, Bolt, or Cursor as More ❯
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Backend Engineer

London Area, United Kingdom
algo1
backend (Python/Java/Go) Worked with a variety of storage technologies (eg. Postgres, Mongo, Redis, Object) Experience with async and bi-directional communication protocols and patterns (eg. WebSockets, SSE) Designed and implemented event-driven distributed systems (eg. Kafka/Pulsar, RabbitMQ, MQTT, or similar) Experience with container orchestration and service containerisation (Kubernetes, Docker) Built and deployed services on More ❯
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Backend Engineer

City of London, London, United Kingdom
algo1
backend (Python/Java/Go) Worked with a variety of storage technologies (eg. Postgres, Mongo, Redis, Object) Experience with async and bi-directional communication protocols and patterns (eg. WebSockets, SSE) Designed and implemented event-driven distributed systems (eg. Kafka/Pulsar, RabbitMQ, MQTT, or similar) Experience with container orchestration and service containerisation (Kubernetes, Docker) Built and deployed services on More ❯
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Backend Engineer

london, south east england, united kingdom
algo1
backend (Python/Java/Go) Worked with a variety of storage technologies (eg. Postgres, Mongo, Redis, Object) Experience with async and bi-directional communication protocols and patterns (eg. WebSockets, SSE) Designed and implemented event-driven distributed systems (eg. Kafka/Pulsar, RabbitMQ, MQTT, or similar) Experience with container orchestration and service containerisation (Kubernetes, Docker) Built and deployed services on More ❯
Posted:

Backend Engineer

london (city of london), south east england, united kingdom
algo1
backend (Python/Java/Go) Worked with a variety of storage technologies (eg. Postgres, Mongo, Redis, Object) Experience with async and bi-directional communication protocols and patterns (eg. WebSockets, SSE) Designed and implemented event-driven distributed systems (eg. Kafka/Pulsar, RabbitMQ, MQTT, or similar) Experience with container orchestration and service containerisation (Kubernetes, Docker) Built and deployed services on More ❯
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Front End Developer - SC Cleared - Outside IR35

London, England, United Kingdom
iO Associates
React Router v7) ☑️ Strong knowledge of state management (Zustand, TanStack Query) ☑️ Skilled in Vite, pnpm, and Git workflows ☑️ Experience integrating with APIs (OpenAPI/Orval) and real-time features (WebSockets, streaming data) ☑️ Deep understanding of browser APIs, performance optimisation, and responsive design ☑️ Strong experience with authentication flows (Azure MSAL/OAuth2) ☑️ Excellent communicator, able to mentor and influence frontend standards More ❯
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Front End Developer - SC Cleared - Outside IR35

london, south east england, united kingdom
iO Associates
React Router v7) ☑️ Strong knowledge of state management (Zustand, TanStack Query) ☑️ Skilled in Vite, pnpm, and Git workflows ☑️ Experience integrating with APIs (OpenAPI/Orval) and real-time features (WebSockets, streaming data) ☑️ Deep understanding of browser APIs, performance optimisation, and responsive design ☑️ Strong experience with authentication flows (Azure MSAL/OAuth2) ☑️ Excellent communicator, able to mentor and influence frontend standards More ❯
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Full Stack Engineer

City of London, London, United Kingdom
XraceAI
or gaming/immersive/AI). Strong experience with real-time databases , data telemetry, and scalable backend systems. Strong backend expertise (Node.js, Python, Postgres/Supabase, REST/WebSockets). Strong frontend skills (React/Next.js, TypeScript, Tailwind). Comfort with 3D/real-time visualization frameworks (WebGL,Three.js) Familiarity with AI/ML integrations (OpenAI, Gemini, RAG pipelines More ❯
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Full Stack Engineer

London Area, United Kingdom
XraceAI
or gaming/immersive/AI). Strong experience with real-time databases , data telemetry, and scalable backend systems. Strong backend expertise (Node.js, Python, Postgres/Supabase, REST/WebSockets). Strong frontend skills (React/Next.js, TypeScript, Tailwind). Comfort with 3D/real-time visualization frameworks (WebGL,Three.js) Familiarity with AI/ML integrations (OpenAI, Gemini, RAG pipelines More ❯
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Full Stack Engineer

City of London, London, United Kingdom
algo1
/Java/Go + React) Worked with a variety of storage technologies (eg. Postgres, Mongo, Redis, Object) Experience with async and bi-directional communication protocols and patterns (eg. WebSockets, SSE) Designed and implemented event-driven distributed systems (eg. Kafka/Pulsar, RabbitMQ, MQTT, or similar) Experience with container orchestration and service containerisation (Kubernetes, Docker) Built and deployed services on More ❯
Posted:

Full Stack Engineer

London Area, United Kingdom
algo1
/Java/Go + React) Worked with a variety of storage technologies (eg. Postgres, Mongo, Redis, Object) Experience with async and bi-directional communication protocols and patterns (eg. WebSockets, SSE) Designed and implemented event-driven distributed systems (eg. Kafka/Pulsar, RabbitMQ, MQTT, or similar) Experience with container orchestration and service containerisation (Kubernetes, Docker) Built and deployed services on More ❯
Posted:

Full Stack Engineer

london, south east england, united kingdom
algo1
/Java/Go + React) Worked with a variety of storage technologies (eg. Postgres, Mongo, Redis, Object) Experience with async and bi-directional communication protocols and patterns (eg. WebSockets, SSE) Designed and implemented event-driven distributed systems (eg. Kafka/Pulsar, RabbitMQ, MQTT, or similar) Experience with container orchestration and service containerisation (Kubernetes, Docker) Built and deployed services on More ❯
Posted:

Full Stack Engineer

london (city of london), south east england, united kingdom
algo1
/Java/Go + React) Worked with a variety of storage technologies (eg. Postgres, Mongo, Redis, Object) Experience with async and bi-directional communication protocols and patterns (eg. WebSockets, SSE) Designed and implemented event-driven distributed systems (eg. Kafka/Pulsar, RabbitMQ, MQTT, or similar) Experience with container orchestration and service containerisation (Kubernetes, Docker) Built and deployed services on More ❯
Posted:

Front End Software Engineer (Typescript)

City of London, London, United Kingdom
Hybrid / WFH Options
Safe Intelligence
and co-designing production-grade RESTful APIs ideally with an API-first approach. Strong knowledge of frontend polling and other async interactions patterns such as: polling/SSE/WebSockets for long-running tasks, optimistic updates, progress states, idempotent actions. Proficiency in integration, component and unit testing, with a strong commitment to code quality and maintainability. Strong knowledge of DevOps More ❯
Posted:

Front End Software Engineer (Typescript)

London Area, United Kingdom
Hybrid / WFH Options
Safe Intelligence
and co-designing production-grade RESTful APIs ideally with an API-first approach. Strong knowledge of frontend polling and other async interactions patterns such as: polling/SSE/WebSockets for long-running tasks, optimistic updates, progress states, idempotent actions. Proficiency in integration, component and unit testing, with a strong commitment to code quality and maintainability. Strong knowledge of DevOps More ❯
Posted:

Front End Software Engineer (Typescript)

london, south east england, united kingdom
Hybrid / WFH Options
Safe Intelligence
and co-designing production-grade RESTful APIs ideally with an API-first approach. Strong knowledge of frontend polling and other async interactions patterns such as: polling/SSE/WebSockets for long-running tasks, optimistic updates, progress states, idempotent actions. Proficiency in integration, component and unit testing, with a strong commitment to code quality and maintainability. Strong knowledge of DevOps More ❯
Posted:

Front End Software Engineer (Typescript)

london (city of london), south east england, united kingdom
Hybrid / WFH Options
Safe Intelligence
and co-designing production-grade RESTful APIs ideally with an API-first approach. Strong knowledge of frontend polling and other async interactions patterns such as: polling/SSE/WebSockets for long-running tasks, optimistic updates, progress states, idempotent actions. Proficiency in integration, component and unit testing, with a strong commitment to code quality and maintainability. Strong knowledge of DevOps More ❯
Posted:

Junior / Mid-Level Software Engineer – London (1st Class Grads - 2 years exp)

London, South East, England, United Kingdom
Mayflower Recruitment Limited
developing with: Relational databases (PostgreSQL, MySQL, etc.) OpenSearch DynamoDB S3 Event-driven architectures Third-party API integration Access control and user permissions Implementing APIs used by single-page applications WebSockets Infrastructure as code (AWS CDK, Terraform, etc.) Docker AWS IoT What we’re looking for Circa 2 years of commercial or equivalent experience in a software development role building cloud More ❯
Employment Type: Full-Time
Salary: £40,000 - £60,000 per annum
Posted:

Technical Lead (Mobile - Flutter)

Greater London, England, United Kingdom
TEG Logistics Technology
Android or iOS) with 3+ years of commercial experience Expert in Flutter architecture, state management, widget testing, and store deployment workflows Experience with REST APIs, real-time communication (e.g., WebSockets), and microservices integration Strong cloud infrastructure knowledge—Firebase and AWS Solid understanding of relational and NoSQL databases Proficient in TDD (and familiar with BDD) within Flutter environments Experienced with tools More ❯
Posted:

Technical Lead (Mobile - Flutter)

london, south east england, united kingdom
TEG Logistics Technology
Android or iOS) with 3+ years of commercial experience Expert in Flutter architecture, state management, widget testing, and store deployment workflows Experience with REST APIs, real-time communication (e.g., WebSockets), and microservices integration Strong cloud infrastructure knowledge—Firebase and AWS Solid understanding of relational and NoSQL databases Proficient in TDD (and familiar with BDD) within Flutter environments Experienced with tools More ❯
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AI Solution Architect (AI Agents, Retail / eCommerce)

Central London, London, United Kingdom
Hybrid / WFH Options
Staffworx Limited
AI Agents Solution Architect - Future Talent (Q2/Q3 opportunities) for leading GSI in the software engineering market AI Solution Architect to design and implement AI-driven agent solutions for the online commerce space. Deep understanding of AI/ML More ❯
Employment Type: Contract, Work From Home
Posted:
WebSockets
London
10th Percentile
£85,000
25th Percentile
£97,813
Median
£112,500
75th Percentile
£136,250