Skills

Python JavaScript Rust TypeScript DevOps Monitoring git benchmarking Azure react AWS cloud platforms Redis Kafka Prometheus Grafana Loki

Job Specifications

Senior React Engineer - £700 - £800 p/day – 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.

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

Degree in Computer Science, Engineering, or a related field
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:

Initial 6 month contract (high possibility of extension)
Up to £800 p/day (dependent on level of experience)
Up to 20% bonus
Excellent corporate benefits
On-site (Central London)

About the Company

Intec Select is a leading specialist IT Recruitment Consultancy which delivers bespoke recruitment services to some of the world’s leading organisations. With 20 years’ experience in IT Recruitment in London and Kent, Intec Select was founded on a wealth of experience and high-level, highly regarded expertise. Intec Select has built and established long-term relationships with our clients by delivering a quality service at competitive prices. As a trusted advisor to our clients we fully understand not just their technical... Know more