Part-Time WebSockets Jobs in Central London

20 of 20 Part-Time WebSockets Jobs in Central London

Senior Full Stack Developer (City of London)

City of London, Greater London, UK
Intec Select
with Docker containers Familiarity with Microsoft Azure (App Services, SQL Azure, Service Bus, etc.) Azure DevOps for CI/CD Real-time messaging (SignalR, WebSockets) Experience with the FIX protocol System design and architecture expertise Package: £100-120k basic salary 25 days holiday, 7% pension, private health insurance More ❯
Employment Type: Part-time
Posted:

Senior Software Engineer (City of London)

City of London, Greater London, UK
Intec Select
with Docker containers Familiarity with Microsoft Azure (App Services, SQL Azure, Service Bus, etc.) Azure DevOps for CI/CD Real-time messaging (SignalR, WebSockets) Experience with the FIX protocol System design and architecture expertise Package: £100-120k basic salary 25 days holiday, 7% pension, private health insurance More ❯
Employment Type: Part-time
Posted:

Senior Frontend Developer (City of London)

City of London, Greater London, UK
83zero
refinement, and retrospectives Evaluate and improve the frontend architecture, including state management and API integrations Help implement real-time frontend/backend communication using WebSockets Extend and optimise the use of Nx for a frontend monorepo setup Leverage Zustand and TanStack Query for state/data handling, and React Router More ❯
Employment Type: Part-time
Posted:

Senior Developer (City of London)

City of London, Greater London, UK
83zero
refinement, and retrospectives Evaluate and improve the frontend architecture, including state management and API integrations Help implement real-time frontend/backend communication using WebSockets Extend and optimise the use of Nx for a frontend monorepo setup Leverage Zustand and TanStack Query for state/data handling, and React Router More ❯
Employment Type: Part-time
Posted:

Senior Software Engineer (City of London)

City of London, Greater London, UK
Intec Select
Azure, AWS, or GCP) Open to working with Python and React Desirable: Finance/trading experience React (Redux), Python, Docker, Azure DevOps, FIX protocol Websockets/SignalR, SQL optimisation Benefits: 25 days holiday, 7% pension, private health insurance £80/month gym benefit, life assurance Season ticket loan Senior .NET More ❯
Employment Type: Part-time
Posted:

Python Developer (City of London)

City of London, Greater London, UK
Hybrid / WFH Options
Uneek Global
Stack & Skills: Python & Django (APIs, data pipelines) Front-end experience (React/Node.js) Azure cloud & large-scale data systems CI/CD, REST APIs, WebSockets Bonus: Financial product knowledge, Docker/Kubernetes Key Responsibilities Build and maintain full-stack applications with a focus on high-performance back-end systems Design More ❯
Employment Type: Part-time
Posted:

Python Developer - LNG Energy Trading (City of London)

City of London, Greater London, UK
Hybrid / WFH Options
Templeton & Partners - Innovative & Inclusive Hiring Solutions
Vaults, etc.) Experience developing web UIs using ReactJS, TypeScript Familiarity with DevOps, CI/CD pipelines, and Agile best practices Understanding of APIs, OAuth2, WebSockets, and microservice architecture Bonus Skills Experience in energy, commodities, or financial trading environments Knowledge of data engineering, Kafka, Terraform, Conda, Bokeh Exposure to working directly More ❯
Employment Type: Part-time
Posted:

Software Engineer - Solution Design Exp (City Of London)

City of London, Greater London, UK
Lorien
using Angular. Solid Solution Deisgn Experience. Nice-to-Have : Experience with Event-Driven Architecture using AWS services (SNS, SQS, EventBridge). Knowledge of GraphQL, WebSockets, or real-time data streaming. Exposure to DevOps and observability practices (e.g., Prometheus, Datadog, AWS CloudWatch, OpenTelemetry). Prior experience in leading distributed engineering teams. More ❯
Employment Type: Part-time
Posted:

Full Stack Engineer (City of London)

City of London, Greater London, UK
algo1
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 More ❯
Employment Type: Part-time
Posted:

Senior Python Developer (City of London)

City of London, Greater London, UK
Venture Up
and accuracy. Core Tech Stack Languages: Python (Python 3.10+), JavaScript and TypeScript for frontend Tools: RabbitMQ and ZeroMQ for messaging; PostgreSQL for data storage; Websockets for frontend communication Environment: Linux servers Observability: Prometheus, Grafana, Zabbix Benefits: Working alongside other extremely talented and driven engineers Extremely lucrative salary, bonus upto More ❯
Employment Type: Part-time
Posted:

Lead Principal Software Engineer (City of London)

City of London, Greater London, UK
Harrington Starr
Proven record of complex software delivery in the Interest Rates domain Excellent Java 21, Spring Boot, strong practical experience with containers, REST APIs, and WebSockets Strong experience of Agile, SCRUM, and test-driven development processes Strong leadership experience (at least 5 years of leading a team) Contact Ciara Clarke at More ❯
Employment Type: Part-time
Posted:

Lead Software Engineer (City of London)

City of London, Greater London, UK
Venture Up
and accuracy. Core Tech Stack Languages: Python (Python 3.10+), JavaScript and TypeScript for frontend Tools: RabbitMQ and ZeroMQ for messaging; PostgreSQL for data storage; Websockets for frontend communication Environment: Linux servers Observability: Prometheus, Grafana, Zabbix Benefits: Working alongside other extremely talented and driven engineers Extremely lucrative salary, bonus upto More ❯
Employment Type: Part-time
Posted:

Senior Software Engineer (City of London)

City of London, Greater London, UK
Fruition Group
the in-house team in the near term. Tech Environment Stack: Next.js, Node.js Infrastructure: MongoDB Atlas, Heroku Tools: Auth0 (auth), AWS S3 (file storage), WebSockets Voice & AI: Twilio, OpenAI, ElevenLabs Who We’re Looking For Be a senior full-stack engineer with experience in fast-moving startup environments Have a More ❯
Employment Type: Part-time
Posted:

Android Engineer (City of London)

City of London, Greater London, UK
algo1
mobile architecture using modern patterns Work closely with design & product to ship polished, scalable user interactions Essential Qualifications: Experience with real-time protocols (eg. WebSockets gRPC, MQTT, SSE or similar) Experience with implementing on-device machine learning (eg. PyTorch Mobile, ML Kit, TensorFlow Lite) Strong understanding of Android performance: lifecycle More ❯
Employment Type: Part-time
Posted:

Front End JavaScript Developer (City of London)

City of London, Greater London, UK
Enigma Software Solutions
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: ASAP Purpose of the role More ❯
Employment Type: Part-time
Posted:

Site Reliability Engineer (City of London)

City of London, Greater London, UK
Global Fintech
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 investigation and diagnosis of incidents More ❯
Employment Type: Part-time
Posted:

Senior Frontend Developer (City of London)

City of London, Greater London, UK
Burns Sheehan
Senior Frontend Engineer | FinTech/DeFi | Up to £120,000 p/a + Bonus + Liquid Equity Senior Frontend Engineer - Up to £120,000 per annum Rising player in Decentralised Finance (DeFi) Up to £120,000 p/a More ❯
Employment Type: Part-time
Posted:

Quantitative Developer (City of London)

City of London, Greater London, UK
Avenir Group
Role Overview As a quantitative developer, you will play a pivotal role in building and optimising our quant trading systems, backtesting infrastructure, and research tools. You will collaborate closely with quantitative researchers, traders, and engineers to translate complex financial models More ❯
Employment Type: Part-time
Posted:

Product Engineer (backend C# .net core) (City of London)

City of London, Greater London, UK
Hybrid / WFH Options
VoxOps AI
Location: Hybrid, West Hampstead, London (2 days+/week in-office, non-negotiable) Salary: up to £75-£80k per annum About us: We're a Y-Combinator backed startup, founded by experienced engineers and repeat founders from companies like Revolut. More ❯
Employment Type: Part-time
Posted:

Senior Golang Developer (City Of London)

City of London, Greater London, UK
Orbis Group
A Senior Golang Developer is required to join the team powering one of the most respected names in crypto media, data, and events. As a key part of our growing engineering team, you’ll help build and scale high-throughput More ❯
Employment Type: Part-time
Posted:
WebSockets
Central London
10th Percentile
£100,750
25th Percentile
£107,500
Median
£120,000