Job Detail

Senior React Developer

Web Development Full–time
ID: #1241
Posted: 2026-03-18
Salary

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 benchmarking, 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)

Hard Skills 8
Skill Source Confidence
JavaScript llm_hard
100%
React llm_hard
100%
Git llm_hard
100%
RESTful APIs llm_hard
100%
Azure (Microsoft) llm_hard
80%
Responsive Web Design llm_hard
80%
Google PageSpeed Insights llm_hard
80%
AWS (Amazon Web Services) llm_hard
80%
Soft Skills 10
Skill Source Confidence
Initiative llm_soft
100%
Team Player Attitude llm_soft
100%
Problem-Solving llm_soft
100%
Self-Motivation llm_soft
100%
Verbal Communication llm_soft
100%
Collaboration llm_soft
100%
Written Communication llm_soft
80%
Clarity of Speech and Writing llm_soft
80%
Decision-Making llm_soft
80%
Adaptability llm_soft
80%
Apply Options
Publisher Direct Link
LinkedIn No Apply
The Times Appointments No Apply
BeBee No Apply
Talents By StudySmarter No Apply
South East Jobs No Apply
TopNottinghamshireCareers No Apply
Nploy.net No Apply
TopSurreyCareers No Apply
LinkedIn No Apply
API Logs for this Job
Query Country Status Response ms Created
Senior React Developer extracted 4918 2026-03-21 22:53
Senior React Developer classified 543 2026-03-21 18:50
junior programmer in United Kingdom gb duplicate 16810 2026-03-21 17:48
graduate web developer in United Kingdom gb duplicate 20448 2026-03-21 16:02
junior frontend engineer in United Kingdom gb duplicate 11724 2026-03-21 15:25
junior web developer in United Kingdom gb processed 13421 2026-03-21 15:18
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