16 of 16 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 Backend 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 ...

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 ...

React Developer

Hiring Organisation
Huxley Associates
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£130000 - £150000/annum
reusable UI components and libraries for advanced data visualisation. (Charts, grids, real-time feeds). Optimise performance for handling high-volume realtime data streams (Websockets, API's). Integrate with backend services for pricing, trade booking and market data. Required Experience: Minimum 5 years of of professional front end development ...

Frontend Software Engineer : React/TypeScript/JavaScript : Elite Trading Firm, London

Hiring Organisation
Hunter Bond
Location
City of London, London, 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 ...

Senior React + Three.js Developer Interactive Installations

Hiring Organisation
FourPointZero
Location
East London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
Experience with kiosk deployments (offline-first, auto-restart, watchdog patterns, it just runs) Multi-display or large-format screen experience Sensors/OSC/websockets/unusual inputs Any museum, exhibition, experiential, themed environment, or live events background This is an exciting opportunity to join a busy company with ...

Android Developer - Test Automation

Hiring Organisation
Arrows
Location
London, England, United Kingdom
communication skills Nice to Have Video streaming experience (DASH/HLS) ADB protocol knowledge Experience with Swift, Go, TypeScript, or BrightScript Device farms, Docker, WebSockets If you are available for a contract role and have the required skills, please apply online ...

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 ...

Quantitative Developer (Rust)

Hiring Organisation
TechShack
Location
City Of London, England, United Kingdom
measured it , and the impact on latency/throughput/stability. Nice to have: Exchange protocols (FIX, ITCH/OUCH/binary feeds, multiplexed WebSockets), colocation realities, Aeron/SBE. Kernel bypass/DPDK/tuning Why this role Trading desk environment (fast feedback, clear ownership). Real upside tied ...

Senior Golang Engineer

Hiring Organisation
Orbis Group
Location
City of London, London, United Kingdom
Experience with relational + non-relational DBs (PostgreSQL + Redis = big plus) Solid testing mindset (unit, integration, E2E) Nice to have Experience with websockets/streaming/queues Real-time data platforms Interest in fintech/digital assets If you enjoy solving real-time, large-scale data challenges and want ...

Python Developer - Equity Derivatives

Hiring Organisation
Pontoon
Location
London, United Kingdom
Employment Type
Contract
Job Advertisement: Python Developer - Equity Derivatives - 13029 Daily Rate: Negotiable via Umbrella Company Contract Length: 12 months with potential to extend Working Pattern: Full Time, Hybrid 2-3 days a week in the office Location ...

Site Reliability Engineer

Hiring Organisation
Global Fintech
Location
City of London, London, United Kingdom
Support & DevOps Engineer A global fintech are seeking a proactive and technically adept Support & DevOps Engineer to maintain and enhance our production trading environment. This unique hybrid role blends BAU support responsibilities with advanced DevOps ...

Front End JavaScript Developer

Hiring Organisation
Enigma Software Solutions
Location
South London, UK
Employment Type
Full-time
Position: Front End JavaScript Developer Reports to: Front End Development Team Lead Hours: 40 hours Location: 3 days in North London office (Monday – Wednesday) Salary: £60 - £80,000 + eligibility for performance bonus Start date ...

Senior Software Engineer

Hiring Organisation
Formula Recruitment
Location
City of London, London, United Kingdom
Senior Software Engineer (Golang) 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. ...

Rust Developer

Hiring Organisation
Radley James
Location
London Area, United Kingdom
We are searching for Senior Rust specialists to join one of our well established and highly regarded Digital Assets focused trading firms, either in London or for relocation to Hong Kong with a comprehensive package. ...

Senior Exchange Connectivity Engineer | Crypto

Hiring Organisation
Selby Jennings
Location
London, UK
Employment Type
Full-time
We are working with a pioneering financial technology firm that is building a global institution for digital assets, designed from the ground up for market integrity and efficiency. Their disciplined, first-principles approach underpins everything ...