Fullstack Developer

ClearRoute; Greater London; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Profit share

Home office budget

Private healthcare

Salary benchmarking

Employee assistance program

Job summary

ClearRoute, an engineering consultancy, is seeking a Senior Fullstack Developer with deep React expertise to build, deploy, and optimize high-performance web applications. The role focuses on cloud deployment, AI integration, and scalable architecture, collaborating across backend, cloud, and AI teams.

Ideal candidates will have extensive React experience, strong UI performance skills, and a track record of delivering production-grade, data-intensive software on Azure (AWS also considered).

Qualifications

• Extensive experience as a Senior fullstack 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 technique.

Responsibilities

• Design, build, and maintain scalable front-end applications using React with TypeScript.
• Build front-end solutions that support high data throughput and performance at scale.
• Collaborate on deployment of applications to cloud environments (Azure preferred; AWS acceptable).
• Integrate front-end apps with AI-powered services and LLM-based APIs.
• Support CI/CD processes and promote reliable deployments.
• Work with containerised environments (Docker) and cloud-native pipelines.

Skills

React

TypeScript

Performance optimization

CI/CD

Azure deployment

Docker

API integration

Tools

Azure

Docker

APIs / microservices

Job description

About Us:

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 Fullstack 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.

Key Responsibilities:

• Design, build, and maintain scalable front-end applications using React, python 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 Experience:

• Extensive experience as a Senior fullstack 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 technique

Working at ClearRoute

We have grown from six founders to 180+ people across five countries in three years, and what sets us apart isn't the pace, it's how we grow.

Real flexibility, in practice. We trust you to perform at your best and still have a life outside of work, with genuine hybrid working, a home office budget, an open feedback culture where your voice shapes decisions, and time off when life needs it (birthday included).

When ClearRoute wins, you win. We offer profit share so success is shared, meaningful recognition for great work, and benefits that look after you and your family, including private healthcare, competitive salary benchmarking, and a confidential employee assistance program covering counselling, mental health support, and financial wellbeing.

A community you'll genuinely want to be part of. Interest based communities like running and book clubs, Women in Tech group, monthly socials, and cross regional events bring people together across the company. An inclusive, collaborative culture where you don't need to conform to succeed, where people support one another and feel comfortable being themselves.

Where meaningful work meets real growth. You will tackle complex, real world problems at the forefront of platform engineering, AI, security, and scalable systems. Your growth is supported by learning budgets, Udemy access, a clear career framework, internal mobility, and thought leadership opportunities that take your impact beyond ClearRoute.

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]