19 of 19 WebSockets Jobs in London

Frontend Engineer

Hiring Organisation
algo1
Location
City of London, London, United Kingdom
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 ...

Senior Software Engineer

Hiring Organisation
algo1
Location
City of London, London, United Kingdom
Worked with a variety of storage technologies (e.g. Postgres, Mongo, Redis, Object) Experience with async and bi-directional communication protocols and patterns (eg. WebSockets, SSE) Designed and implemented event-driven distributed systems (e.g. Kafka, Pulsar, RabbitMQ, MQTT, or similar) Experience with container orchestration and service containerisation (Kubernetes, Docker) Built ...

Senior Full-Stack AI Engineer — Frontend & LLM-Enabled UX (Level 3)

Hiring Organisation
Allegis Global Solutions
Location
London, England, United Kingdom
components and design systems (component libraries, theming, design tokens) to ensure consistent product quality and fast iteration. Implement real-time and progressive UX patterns (WebSockets, SSE, streaming LLM responses, optimistic updates, incremental rendering) that make AI interactions feel fast and human-centered. Collaborate on frontend work with UX designers ...

Full Stack Engineer

Hiring Organisation
algo1
Location
City of London, London, United Kingdom
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 ...

Senior .NET Engineer | Low Latency Systems & Cloud Platform

Hiring Organisation
Quantum Technology Solutions Inc
Location
London Area, United Kingdom
Azure Container Apps, Azure Event Hub, Redis Cache, PostgreSQL (Timescale) - CI/CD: Azure DevOps and Terraform (IaC) - Messaging: Kafka or Redpanda - Data ingestion: WebSockets, REST, FIX You’re a great fit if you: - Have 5 or more years of experience in professional .NET and C# backends - Have experience with ...

Senior React Developer

Hiring Organisation
INTEC SELECT LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£120,000 - £140,000 per annum
Senior React Developer - £120,000 - £140,000 – On-site (Central London) Overview We are hiring a Senior React Engineer to join a high-performance technology team within a leading financial services organisation operating in the ...

Senior React Engineer

Hiring Organisation
INTEC SELECT LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Senior React Engineer - £700 - £800 p/day – On-site (Central London) Overview We are hiring a Senior React Engineer to join a high-performance technology team within a leading financial services organisation operating in ...

Senior Android Engineer

Hiring Organisation
algo1
Location
London Area, United Kingdom
product and design to turn complex technical capabilities into polished user interactions. Essential Qualifications: Experience with real-time protocols and data-heavy applications (e.g. WebSockets, gRPC, MQTT, SSE). Expert-level understanding of Android internals: concurrency, memory management, and the full lifecycle constraints. Proven track record of building resilient, offline ...

Principal Software Engineer Node Golang

Hiring Organisation
Client Server
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
have advanced hands-on experience including designing, building and operating complex, large-scale distributed systems including both synchronous (e.g. REST APIs) and asynchronous (e.g. WebSockets, message queues like Kafka or RabbitMQ, event streams) communication patterns You have experience of working on High Availability or sophisticated disaster recovery strategies for global ...

Senior Software Engineer

Hiring Organisation
Legend Corp
Location
London, England, United Kingdom
security, implementing safeguards against vulnerabilities.What You'll BringStrong grounding in Domain-Driven Design, API-first architecture, and software design patterns.Experience with Pub/Sub, websockets, and Server-Sent Events (SSE).A strong product engineering mindset — able to translate requirements into technical designs and ship features end-to-end.The Interview ProcessInitial ...

Java Full-Stack Team Lead

Hiring Organisation
Luxoft
Location
London, England, United Kingdom
Project description Join a team that's redefining banking technology!Our client isn't a typical Swiss bank — it's a modern financial institution focused on delivering cutting-edge online trading and financial services. Unlike ...

Senior Software Engineer (Full Stack)

Hiring Organisation
Humaans
Location
London, England, United Kingdom
Join to apply for the Senior Software Engineer (Full Stack) role at HumaansJoin to apply for the Senior Software Engineer (Full Stack) role at HumaansAbout UsHi, we’re Humaans! We help globally scaling organisations transform ...

Frontend Developer

Hiring Organisation
Amberes
Location
City of London, London, United Kingdom
Frontend Engineer (Deep Tech/AI Manufacturing Platform) Location: London (Hybrid – 4 days onsite) Package: £60,000-70,000 Visa: UK Work Eligibility Required High-growth deep tech startup operating at the intersection of advanced ...

Senior Platform Engineer

Hiring Organisation
Immersive Finance
Location
West London, London, United Kingdom
Employment Type
Permanent
Location: London (Hybrid) Type: Permanent Industry: High-Performance Trading/Financial Markets About the Company Immersive Finance provides institutional-grade risk infrastructure for digital asset derivatives. Our team comprises seasoned traders, quantitative researchers, and technologists ...

Senior Product Manager - Trading

Hiring Organisation
Zero Hash
Location
London, England, United Kingdom
About the Job As the Senior Product Manager - Trading you will play a crucial role in shaping the strategy, roadmap, execution of our trading & liquidity products. The ideal candidate understands the unique challenges and transformative ...

Linux Systems Administrator - Intermediate - Financial / Banking

Hiring Organisation
N P Associates
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £65,000 per annum
Linux Systems Administrator - Intermediate - Financial/Banking Working in a busy and vibrant Financial/Banking environment, candidates will have a minimum of 2+ years Red Hat Linux systems Administration with some Scripting - Bash/ ...

Senior Product Manager (London office 3x week)

Hiring Organisation
Georgian Partners
Location
London, England, United Kingdom
PolyAI automates customer service through lifelike voice assistants that let customers lead a conversation. Our voice assistants make it possible for businesses to deliver outstanding customer service that rivals their human agents. Our customers, which ...

Senior Software Engineer

Hiring Organisation
Formula Recruitment
Location
City of London, London, United Kingdom
Senior Software Engineer (Node.js) London – Hybrid flexible Up to £80,000 + equity We’re currently partnered with a real-time sports data platform that is revolutionising how companies leverage data to empower their business. ...

Lead Software Engineer Golang API Messaging

Hiring Organisation
Client Server
Location
Central London, London, United Kingdom
Employment Type
Permanent, Work From Home
Lead Software Engineer/Developer (Go API Messaging) London onsite Are you a senior, backend focussed Software Engineer with strong Go/Golang coding skills and real-time messaging experience? You could be progressing your ...