Senior React Developer
other jobs INTEC SELECT LIMITED
Added before 2 hours
- England,London,City of London
- Full Time, Permanent
- £120,000 - £140,000 per annum
Job Description:
Senior React Developer - £120,000 - £140,000 – On-site (Central London)
Overview
We are hiring a Senior React Engineer to join a high-performance technology team within a leading financial services organisation operating in the oil and energy derivatives space. The business runs a cutting-edge electronic trading platform that serves both internal trading teams and external clients, offering low-latency, highly reliable trading access via a modern UI.
We are looking for a self-starter who takes ownership of technical challenges and delivers robust solutions, with the ability to work under pressure in a fast-moving trading environment. You must also be a collaborative team player who communicates clearly and contributes to a high-quality engineering culture.
Role & Responsibilities
*Design, build, and maintain a React/TypeScript trading UI, delivering real-time streaming data and a seamless user experience
*Integrate the UI with RESTful and streaming APIs (built in Rust and Python)
*Own performance improvements across dashboards, widgets, and live data visualisation
*Collaborate with QA and DevOps to enhance automated testing and deployment pipelines
*Lead efforts in securing, scaling, and monitoring the frontend environment
*Use observability tools (Prometheus, Grafana, Loki) to monitor UI health and performance
*Drive UI architectural decisions, performance bench-marking, and best practice implementation
Essential Skills and Experience
*5+ years of experience in frontend/UI engineering, with a focus on performance and scale
*Deep expertise in React, TypeScript, and JavaScript
*Strong understanding of WebSocket integration, low-latency data streaming, and threading
*Experience troubleshooting data-heavy UIs and optimising load times
*Familiarity with tools like Redis, Kafka, and cloud platforms such as Azure or AWS
*Proficient in Git and modern source control workflows
*Knowledge of performance diagnostics (e.g. Google PageSpeed Insights) and responsive UI optimisation
Package:
*Up to £140,000 (dependent on level of experience)
*Up to 20% bonus
*Excellent corporate benefits
*On-site (Central London)
Overview
We are hiring a Senior React Engineer to join a high-performance technology team within a leading financial services organisation operating in the oil and energy derivatives space. The business runs a cutting-edge electronic trading platform that serves both internal trading teams and external clients, offering low-latency, highly reliable trading access via a modern UI.
We are looking for a self-starter who takes ownership of technical challenges and delivers robust solutions, with the ability to work under pressure in a fast-moving trading environment. You must also be a collaborative team player who communicates clearly and contributes to a high-quality engineering culture.
Role & Responsibilities
*Design, build, and maintain a React/TypeScript trading UI, delivering real-time streaming data and a seamless user experience
*Integrate the UI with RESTful and streaming APIs (built in Rust and Python)
*Own performance improvements across dashboards, widgets, and live data visualisation
*Collaborate with QA and DevOps to enhance automated testing and deployment pipelines
*Lead efforts in securing, scaling, and monitoring the frontend environment
*Use observability tools (Prometheus, Grafana, Loki) to monitor UI health and performance
*Drive UI architectural decisions, performance bench-marking, and best practice implementation
Essential Skills and Experience
*5+ years of experience in frontend/UI engineering, with a focus on performance and scale
*Deep expertise in React, TypeScript, and JavaScript
*Strong understanding of WebSocket integration, low-latency data streaming, and threading
*Experience troubleshooting data-heavy UIs and optimising load times
*Familiarity with tools like Redis, Kafka, and cloud platforms such as Azure or AWS
*Proficient in Git and modern source control workflows
*Knowledge of performance diagnostics (e.g. Google PageSpeed Insights) and responsive UI optimisation
Package:
*Up to £140,000 (dependent on level of experience)
*Up to 20% bonus
*Excellent corporate benefits
*On-site (Central London)
Job number 3431231
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Company Details:
INTEC SELECT LIMITED
Company size: 10–19 employees
Industry: IT
Intec Select is a leading specialist IT Recruitment Consultancy which delivers bespoke recruitment services to some of the world’s leading organ...