76 to 100 of 187 Permanent WebSockets Jobs

Experience building real-time or streaming systems, or systems with very high throughput demands. Experience influencing the architecture and design of applications Tech Stack - Python, ReactJS, Kubernetes, APi's, websockets, AWS Staff Software Engineer GO/Python £600-£800/day Outside IR35 More ❯

Experience building real-time or streaming systems, or systems with very high throughput demands. Experience influencing the architecture and design of applications Tech Stack - Python, ReactJS, Kubernetes, APi's, websockets, AWS Staff Software Engineer | GO/Python | £600-£800/day | Outside IR35 More ❯

Experience building real-time or streaming systems, or systems with very high throughput demands. Experience influencing the architecture and design of applications Tech Stack - Python, ReactJS, Kubernetes, APi's, websockets, AWS Staff Software Engineer | GO/Python | £600-£800/day | Outside IR35 More ❯

Experience building real-time or streaming systems, or systems with very high throughput demands. Experience influencing the architecture and design of applications Tech Stack - Python, ReactJS, Kubernetes, APi's, websockets, AWS Staff Software Engineer | GO/Python | £600-£800/day | Outside IR35 More ❯

modern JavaScript (ES6+) Proven experience 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 capital markets Experience in data More ❯

modern JavaScript (ES6+) Proven experience 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 capital markets Experience in data More ❯

modern JavaScript (ES6+) Proven experience 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 capital markets Experience in data More ❯

modern JavaScript (ES6+) Proven experience 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 capital markets Experience in data More ❯

modern JavaScript (ES6+) Proven experience 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 capital markets Experience in data More ❯

modern JavaScript (ES6+) Proven experience 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 capital markets Experience in data More ❯

Pre-trade analytics (liquidity/pricing/scenario/what-if) and risk calculation services used in real time on the desk. Low-latency data services and streaming APIs (WebSockets/gRPC etc.) for live market and risk data. High-performance trader-facing UIs: time series views, blotters, RFQ/axe views, portfolio & risk dashboards. End-to-end systems: you More ❯

Pre-trade analytics (liquidity/pricing/scenario/what-if) and risk calculation services used in real time on the desk. Low-latency data services and streaming APIs (WebSockets/gRPC etc.) for live market and risk data. High-performance trader-facing UIs: time series views, blotters, RFQ/axe views, portfolio & risk dashboards. End-to-end systems: you More ❯

Pre-trade analytics (liquidity/pricing/scenario/what-if) and risk calculation services used in real time on the desk. Low-latency data services and streaming APIs (WebSockets/gRPC etc.) for live market and risk data. High-performance trader-facing UIs: time series views, blotters, RFQ/axe views, portfolio & risk dashboards. End-to-end systems: you More ❯

Pre-trade analytics (liquidity/pricing/scenario/what-if) and risk calculation services used in real time on the desk. Low-latency data services and streaming APIs (WebSockets/gRPC etc.) for live market and risk data. High-performance trader-facing UIs: time series views, blotters, RFQ/axe views, portfolio & risk dashboards. End-to-end systems: you More ❯

Pre-trade analytics (liquidity/pricing/scenario/what-if) and risk calculation services used in real time on the desk. Low-latency data services and streaming APIs (WebSockets/gRPC etc.) for live market and risk data. High-performance trader-facing UIs: time series views, blotters, RFQ/axe views, portfolio & risk dashboards. End-to-end systems: you More ❯

Pre-trade analytics (liquidity/pricing/scenario/what-if) and risk calculation services used in real time on the desk. Low-latency data services and streaming APIs (WebSockets/gRPC etc.) for live market and risk data. High-performance trader-facing UIs: time series views, blotters, RFQ/axe views, portfolio & risk dashboards. End-to-end systems: you More ❯

deployment. Maintain up-to-date knowledge of industry trends and technologies to keep our systems at the forefront. Required Qualifications Strong experience with React, Typescript, and Javascript. Experience with Websockets and other real-time data transport technologies. Proven track record of shipping multiple commercial products to an active user base. Attention to detail and delivering on a user-centric approach More ❯

of performance tuning and concurrency. Hands-on experience with Kubernetes , AWS , and modern cloud infrastructure . Proficiency with databases — schema design, performance optimization, and analytics. Familiarity with REST APIs , websockets, and authentication/security best practices. A disciplined engineering mindset — you think about reliability, maintainability, and long-term scalability. Nice-to-haves Experience with MLOps and model-serving infrastructure. Background More ❯

of performance tuning and concurrency. Hands-on experience with Kubernetes , AWS , and modern cloud infrastructure . Proficiency with databases — schema design, performance optimization, and analytics. Familiarity with REST APIs , websockets, and authentication/security best practices. A disciplined engineering mindset — you think about reliability, maintainability, and long-term scalability. Nice-to-haves Experience with MLOps and model-serving infrastructure. Background More ❯

end solutions Contribute to building real-time features and mobile-responsive interfaces Help shape user experience through thoughtful design and performance optimisation Tech Stack (Vue 3, Quasar, Axios, SignalR, Websockets, Capacitor, Cordova, Playwright) Key Skills & Experience Essential 1–2+ years of commercial experience with Vue.js Experience using Axios or working with REST APIs Strong skills in HTML, SASS, and responsive More ❯

of performance tuning and concurrency. Hands-on experience with Kubernetes , AWS , and modern cloud infrastructure . Proficiency with databases — schema design, performance optimization, and analytics. Familiarity with REST APIs , websockets, and authentication/security best practices. A disciplined engineering mindset — you think about reliability, maintainability, and long-term scalability. Nice-to-haves Experience with MLOps and model-serving infrastructure. Background More ❯

of performance tuning and concurrency. Hands-on experience with Kubernetes , AWS , and modern cloud infrastructure . Proficiency with databases — schema design, performance optimization, and analytics. Familiarity with REST APIs , websockets, and authentication/security best practices. A disciplined engineering mindset — you think about reliability, maintainability, and long-term scalability. Nice-to-haves Experience with MLOps and model-serving infrastructure. Background More ❯

of performance tuning and concurrency. Hands-on experience with Kubernetes , AWS , and modern cloud infrastructure . Proficiency with databases — schema design, performance optimization, and analytics. Familiarity with REST APIs , websockets, and authentication/security best practices. A disciplined engineering mindset — you think about reliability, maintainability, and long-term scalability. Nice-to-haves Experience with MLOps and model-serving infrastructure. Background More ❯

or Android (3+ years) Experience leading or mentoring engineers in a technical leadership role Deep understanding of Flutter architecture, state management, testing and deployment workflows Comfortable with REST APIs, WebSockets, microservices, Firebase and AWS Experience building CI/CD pipelines and working with tools like Git, Docker and Jenkins A collaborative communicator who enjoys solving complex technical challenges What’s More ❯

or Android (3+ years) Experience leading or mentoring engineers in a technical leadership role Deep understanding of Flutter architecture, state management, testing and deployment workflows Comfortable with REST APIs, WebSockets, microservices, Firebase and AWS Experience building CI/CD pipelines and working with tools like Git, Docker and Jenkins A collaborative communicator who enjoys solving complex technical challenges What’s More ❯