Senior React Developer (TypeScript) – Build Complex Energy Platforms

JR United Kingdom; Stevenage; On-site; GBP 80,000 - 100,000; Full time

Job summary

Join a leading organisation in the energy sector as a Senior React Developer focusing on building robust internal applications for mission-critical operations. You will work in an agile team to modernise systems and handle complex data while ensuring the stability of the energy grid.

Benefits

Competitive day rate with potential for extension

Contribute to critical systems used daily by energy control teams

Be part of a forward-thinking, agile team

Qualifications

• Proven experience with React & TypeScript.
• Experience managing complex state/data flows.
• Knowledge of regulated sectors such as energy or finance preferred.

Responsibilities

• Design and develop scalable front-end systems using React and TypeScript.
• Work with large datasets and integrate secure APIs/microservices.
• Modernise and refactor legacy codebases to enterprise standards.

Skills

React

TypeScript

Node.js

Material UI

HTML/CSS

Docker

Azure

Job description

Senior React Developer (TypeScript) – Build Complex Energy Platforms

Join a leading organisation in the energy sector as a Senior React Developer, focusing on building robust internal applications that support mission-critical control room operations.

This role involves advanced programming tasks, managing complex data streams, and delivering tools to ensure the stability of the energy grid.

• Design and develop scalable front-end systems using React, TypeScript, and Next.js
• Work with large datasets and integrate secure APIs/microservices
• Modernise and refactor legacy codebases to enterprise standards
• Collaborate within a DevSecOps environment with strict CI/CD and compliance requirements

Requirements:

• Proven experience with React & TypeScript, with strong programming fundamentals
• Experience managing complex state/data flows and performance tuning
• Knowledge of Node.js, Material UI, HTML/CSS, Docker, Azure
• Background in regulated sectors such as energy, finance, or utilities (preferred)

Benefits of Applying:

• Contribute to critical systems used daily by energy control teams
• Be part of a forward-thinking, agile team driving innovation
• Competitive day rate with potential for extension