Frontend Developer - React

ClearRoute; Greater London; On-site; GBP 55,000 - 75,000; Full time

Job summary

A leading engineering consultancy in Greater London is seeking a Senior Frontend Developer with extensive React expertise. This role involves designing scalable front-end applications, collaborating with backend and AI teams, and deploying applications on cloud platforms like Azure. The ideal candidate has robust knowledge of modern JavaScript/TypeScript, performance optimization, and container technologies such as Docker. It is a unique opportunity to influence the direction of a growing organization while enjoying a flexible and inclusive work environment.

Qualifications

• Extensive experience as a Senior Front End Developer or similar role.
• Expert knowledge of React, including modern patterns, hooks, state management, and performance optimisation.
• Proven experience deploying applications to cloud platforms, ideally Microsoft Azure.

Responsibilities

• Design, build, and maintain scalable front-end applications using React and modern JavaScript/TypeScript.
• Collaborate on the deployment of applications to cloud environments (Azure preferred; AWS acceptable).
• Integrate front-end applications with AI-powered services, including LLM-based APIs.

Skills

React

JavaScript

TypeScript

Azure

Docker

Performance optimisation

Job description

Senior Frontend Developer (React)

ClearRoute is an engineering consultancy bridging Quality Engineering, Cloud Platforms and Developer Experience. We help enterprises reliably bring high-impact digital products to market faster, cheaper, and safer, working with technology leaders facing complex business challenges. We take as much pride in our people, culture and work-life balance as we do in making better software. We’re not just making better software. We’re making the making of software better. Collaborative, entrepreneurial and dedicated to problem solving, we bring the step change our customer need to sustain innovation. Our values challenge us to do the best we can for ClearRoute, our customers and most importantly our team. This is an opportunity for you to build the organisation from the ground up, use your voice to drive change and help transform organisations and problem domains.

Role

We are seeking a highly skilled Senior Frontend Developer with deep expertise in React and strong experience deploying applications to cloud platforms, ideally Microsoft Azure (AWS experience also welcome). This role will focus on building, deploying, and optimising scalable, high-performance web applications that handle large volumes of data and integrate AI-driven components. You will work closely with backend engineers, cloud specialists, and AI teams to deliver intelligent, production-ready applications at scale.

Responsibilities

• Design, build, and maintain scalable front-end applications using React and modern JavaScript/TypeScript.
• Build front-end solutions that support high data throughput, performance optimisation, and responsiveness at scale.
• Collaborate on the deployment of applications to cloud environments (Azure preferred; AWS acceptable).
• Integrate front-end applications with AI-powered services, including LLM-based APIs and workflows and Agentic AI systems.
• Automation and orchestration services (particularly within Azure).
• Work with containerised environments (e.g. Docker) and contribute to cloud-native deployment pipelines.
• Support CI/CD processes and promote reliable, repeatable deployments.

Required Skills & Experience

• Extensive experience as a Senior Front End Developer or similar role.
• Expert knowledge of React, including modern patterns, hooks, state management, and performance optimisation.
• Proven experience deploying applications to cloud platforms, ideally Microsoft Azure.
• Experience integrating front-end applications with APIs, microservices, and distributed systems.
• Familiarity with container technologies such as Docker and container-based deployment models.
• Experience working on applications that handle large datasets or high-traffic environments.
• Strong understanding of front-end performance, observability, and optimisation techniques.

At ClearRoute, we believe diverse perspectives lead to better outcomes, and inclusion creates the conditions for everyone to thrive. We are proud to have built a family friendly working environment and have many employees who have caring responsibilities alongside work. We welcome applications from people who require flexibility and will be happy to discuss needs on an individual basis. We are committed to fostering a culture where all team members feel respected, supported, and empowered to do their best work. We celebrate individuality and our differences and understand that some differences may mean that you require changes made to the interview process. We are happy to cater to your needs to make the interview accessible, if this is something you require please let us know by emailing us at [e-mail].