RPLN0252945 – Software Engineer

CERTAIN ADVANTAGE; London; Hybrid; GBP 150,000 - 200,000; Full time

Job summary

A leading technology recruitment agency is looking for a JavaScript React Developer to join a global team in London. The developer will showcase strong front-end capabilities and solid cloud experience, focusing on delivering business-critical applications. If you have over 8 years in the field, particularly with React, TypeScript, and Azure, this hybrid contract role may be for you.

Qualifications

• 8+ years of software development experience.
• Strong proficiency with JavaScript, React, and TypeScript.
• Experience with CI/CD pipelines and cloud technology.

Responsibilities

• Design and build modern web applications using React and TypeScript.
• Collaborate with global teams on solution design and technical delivery.
• Ensure applications meet high performance and accessibility standards.

Skills

JavaScript

React

Redux

TypeScript

Agile delivery

Cloud experience

Tools

Azure DevOps

Docker

Git

Jenkins

Job description

JavaScript React Developer
London (Hybrid)
6 month contract
Rates: Negotiable

Overview

We are seeking an experienced Software Engineer to join a global technology team within a leading energy trading business. This role is suited to a developer with strong front-end expertise, solid cloud experience, and a track record of delivering business-critical applications in fast-paced environments.

The ideal candidate will have excellent problem-solving skills, a user-focused mindset, and the ability to thrive in Agile delivery teams.

Key Responsibilities

• Design and build modern web applications using React, TypeScript, CSS, Jest/Vitest, Webpack, and Ag Grid.
• Apply modern JavaScript coding, testing, debugging, and automation techniques.
• Contribute to the creation and optimisation of CI/CD pipelines and deployment practices.
• Collaborate with global teams on solution design, technical delivery, and integration with APIs, databases, and cloud infrastructure.
• Ensure applications meet high standards of performance, accessibility, and user experience.
• Support functional excellence through the adoption of best practices, standards, and tooling.
• Work independently within defined workstreams, delivering high-quality, tested, and documented code.

Essential Skills & Experience

• 8+ years of software development experience.
• Strong proficiency with JavaScript / React / Redux / TypeScript.
• Styled Components and React Testing Library.
• REST APIs integration.
• Azure DevOps / VSTS – CI/CD build and release pipelines.
• Cloud experience, particularly Microsoft Azure.
• Agile delivery (Scrum, Kanban).
• Strong knowledge of software design principles and patterns.
• Familiarity with deployment and automation tools (e.g., Jenkins, Docker, Git).
• Solid grounding in Computer Science fundamentals (data structures, algorithms, system design)

If you are interested and keen to find out more, please apply now with your updated CV and reach out to Tom Johnson at Certain Advantage - Ref: 79086