8 of 8 Permanent WebSockets Jobs in the City of London

pipelines and event-driven architectures • Supporting production systems and driving performance improvements 🛠️ Core tech & experience: • Strong Python expertise (Django, FastAPI) • Experience with REST APIs, WebSockets, and real-time data integration • Cloud-native development (Azure preferred) • CI/CD, automated testing, and production support • Hands-on experience with AI agents/ ...

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 ...

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 ...

Frontend Engineer STS Digital (www.stsdigital.io) is a leading regulated digital asset trading firm specialising in OTC trading and market making. While trading is headquartered in Bermuda, technology development is provided by a vibrant global engineering ...

templates and workflows that simplify publishing new reports. Build and maintain internal dashboards used by trading and operations teams. Implement real-time updates using WebSockets and asynchronous patterns where required. Develop monitoring tools and evaluation environments for key systems and performance metrics. Collaborate directly with trading stakeholders to automate operational … experience in Python development in production environments Experience with async programming (asyncio) and concurrency Familiarity with Celery or distributed task processing systems Experience with WebSockets or real-time systems Familiarity with Flask (experience with Quart is a plus) Experience with Pydantic for data validation and modelling Solid understanding of databases ...

This is an opportunity for a technical problem solving SRE to join a leading global fintech who are currently growing their presence in Europe. Role Responsibilities; Investigate, troubleshoot and diagnose incidents Provide first-third line ...

Senior C++ Engineer Certain Advantage are hiring for a Senior C++ Engineer based in London. This role is on an initial contract till the end of the year and is hybrid. You will play a ...

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 ...