Senior React Developer (TypeScript) – Build Complex Energy Platforms

JR United Kingdom; Watford; On-site; GBP 100,000 - 125,000; Full time

Job summary

A leading organisation in the energy sector is seeking a Senior React Developer (TypeScript) to tackle high-impact programming tasks. This role involves managing complex data streams and delivering innovative tools for mission-critical operations. The successful candidate will work within a forward-thinking agile team focusing on energy control applications.

Benefits

Competitive day rate

Strong extension potential

Qualifications

• Advanced React & TypeScript experience.
• Skilled in managing complex state/data flows.
• Experience in regulated sectors preferred.

Responsibilities

• Design and deliver scalable front-end systems.
• Work with large datasets and integrate secure APIs.
• Modernise and refactor legacy codebases.

Skills

React

TypeScript

Node.js

HTML/CSS

Docker

Azure

Job description

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Senior React Developer (TypeScript) – Build Complex Energy Platforms, Watford, Hertfordshire

Client:

GL Global

Location:

Watford, Hertfordshire, United Kingdom

Job Category:

Other

EU work permit required: Yes

Job Views:

3

Posted:

04.06.2025

Expiry Date:

19.07.2025

Job Description:

Senior React Developer (TypeScript) – Build Complex Energy Platforms

Are you a React expert ready to take on high-impact, data-intensive challenges? Join a leading organisation in the energy sector, building robust internal applications that support mission-critical control room operations.

This is not your typical front-end role. You’ll be tackling advanced programming tasks, managing complex data streams, and delivering powerful tools that help ensure the stability of the energy grid.

• Design and deliver 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 in a DevSecOps environment with strict CI/CD and compliance requirements

Experience:

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

Why Apply?

• Shape critical systems used daily by energy control teams
• Join a forward-thinking, agile team driving real innovation
• Competitive day rate with strong extension potential