15 of 15 WebSockets Jobs in London

Senior Backend Engineer (Golang)

Hiring Organisation
Ventula Consulting
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 130,000 - 160,000 Annual
clients. Deep experience with distributed systems, microservices architecture, and event-driven patterns. Demonstrated experience with Real Time applications and data streaming technologies (eg, WebSockets, gRPC, Kafka). Experience integrating third-party AI/ML APIs (eg, LLMs, STT/TTS, or other complex services) into production systems. Experience with containerization ...

Senior Backend Engineer (Application & AI Orchestration)

Hiring Organisation
Ventula Consulting
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 110,000 - 140,000 Annual
clients. Deep experience with distributed systems, microservices architecture, and event-driven patterns. Demonstrated experience with Real Time applications and data streaming technologies (eg, WebSockets, gRPC, Kafka). Experience integrating third-party AI/ML APIs (eg, LLMs, STT/TTS, or other complex services) into production systems. Experience with containerization ...

React Developer - Fixed Income eTrading

Hiring Organisation
Vertus Partners
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 85,000 - 140,000 Annual
delivering Front End applications in electronic trading environments Strong understanding of performance optimisation and low-latency UI design Experience with Real Time data technologies (WebSockets, FIX, etc.) Familiarity with containerized Front End platforms such as OpenFin is a plus Prior exposure to Fixed Income products (Rates, Credit, Bonds) or other ...

Staff Frontend Engineer (AI Lab | £170,000)

Hiring Organisation
Paradigm Talent
Location
London, UK
Employment Type
Full-time
proven track record of delivering polished, performant, and elegant user interfaces. Deep appreciation for UI/UX craftsmanship and accessibility. Familiarity with REST APIs, websockets, and secure frontend patterns. A creative streak — you think visually and love turning complexity into clarity. Nice-to-haves Experience with 3D or WebGL rendering ...

Senior Fullstack Engineer - Rates and Credit Trading

Hiring Organisation
Robert Walters
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£100,000 - £128,000 per annum
define long-term technology direction Key Requirements: Strong expertise in React, TypeScript, and modern web technologies Proven experience building real-time, event-driven systems (WebSockets, Web Workers, asynchronous data flow) Solid background in backend development, ideally with Java, REST APIs, and messaging frameworks Deep understanding of architecture and system design ...

Python Developer

Hiring Organisation
TEKsystems
Location
London, UK
Employment Type
Full-time
basic Unix knowledge desirable Proficient in writing unit, integration, and acceptance tests DESIRED SKILLS: experience with modern web UI technologies; HTML5, React, RESTful services, Websockets Knowledge of Structured Products BUSINESS KNOWLEDGE Equity Derivatives Regional variations of Products and Trading SP and SN is a plus Job Title: Python Developer Location ...

React Developer - Mid Level

Hiring Organisation
Lumenalta
Location
London, UK
Employment Type
Full-time
Insurance, Media or other complex multifactor industries Requirements 3+ years of professional experience (A technical assessment will be required) Experience with Javascript, React, Redux, Websockets, Async/Await Ability to create clean, modern, testable, well-documented code Advanced English fluency, verbal and written Professional, empathic, team player Problem solver, proactive ...

Python Developer

Hiring Organisation
Venture Up
Location
South London, UK
Employment Type
Full-time
Full stack Python Developer – Sports betting Hedge fund – London Option to work from home up to 4 days a week or fully remote. Full stack Python Developer is required for a leading provider of sports ...

Python Developer

Hiring Organisation
Venture Up
Location
London, UK
Employment Type
Full-time
Full stack Python Developer – Sports betting Hedge fund – London Option to work from home up to 4 days a week or fully remote. Full stack Python Developer is required for a leading provider of sports ...

Senior Android Engineer (UI/UX & Welcome Manager)

Hiring Organisation
Ventula Consulting
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 110,000 - 140,000 Annual
chat applications, financial dashboards, Real Time streaming apps). ? Strong experience integrating with Back End APIs and services, particularly consuming Real Time data via WebSockets, gRPC, or similar protocols. ? Proficiency in translating high-fidelity designs (eg, Figma, Sketch) into beautiful, performant, and maintainable code. ? A strong understanding of Android ...

Senior Android Engineer (Native Integration & Security)

Hiring Organisation
Ventula Consulting
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 110,000 - 140,000 Annual
best practices, including secure data storage, network communication (mTLS), and threat modelling. Proficiency in consuming RESTful APIs and Real Time data streams (eg, WebSockets) in a mobile environment. Strong understanding of Android performance profiling tools and techniques to debug and optimize for latency. Experience with multi-threaded and asynchronous programming ...

Senior Android Engineer (Native Integration & Security)

Hiring Organisation
Ventula Consulting Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
best practices, including secure data storage, network communication (mTLS), and threat modeling. ? Proficiency in consuming RESTful APIs and real-time data streams (e.g., WebSockets) in a mobile environment. ? Strong understanding of Android performance profiling tools and techniques to debug and optimize for latency. ? Experience with multi-threaded and asynchronous programming ...

Senior Frontend Software Engineer

Hiring Organisation
PhysicsX
Location
London, UK
Employment Type
Full-time
About Us PhysicsX is a deep-tech company with roots in numerical physics and Formula One, dedicated to accelerating hardware innovation at the speed of software. We are building an AI-driven simulation software stack ...

Senior C++ Engineer (Low Latency / HTF)

Hiring Organisation
BlockDelta
Location
London, UK
Our client is a UAE-based digital asset trading firm, dedicated to building advanced systems for trading highly liquid crypto spot and derivatives instruments across global exchanges. At its core, the business is driven by ...