Senior Full Stack Developer (React / C#)

The Role:

We are delighted to be supporting our client, a global, award-winning, tech-driven organisation, in their search for a Senior Developer to join their growing London-based team.

This is a fantastic opportunity for an experienced professional with a strong Front End background in React.js who is also confident contributing to Back End development using C# and ASP.NET Core.

You will work as part of a multi-disciplinary technology team, collaborating with Front End and Back End Engineers, DevOps, Product Managers, and UX Designers to deliver high-quality, innovative solutions.

Key Responsibilities:

• Lead and contribute to the design and development of scalable Front End applications using React.js (JavaScript/TypeScript).
• Collaborate with colleagues across disciplines to deliver robust, secure, and efficient solutions.
• Contribute to Back End development using C# and ASP.NET Core, ensuring seamless integration between systems.
• Apply knowledge of cloud platforms (Azure, AWS, or GCP) to build and deploy modern, cloud-native applications.
• Share expertise and mentor junior developers, contributing to a culture of knowledge-sharing and continuous improvement

Key Requirements:

• Expertise in React, JavaScript/TypeScript, HTML, CSS and responsive design principles.
• Experience with C# for building robust backend services and APIs.
• Comprehensive knowledge of both front-end and back-end development, with the ability to design, develop, and maintain end-to-end solutions.
• Ability to identify, analyse, and solve complex technical challenges across the stack.
• Strong focus on code quality, scalability, and maintainability.
• Experience with performance tuning and optimisation of both front-end and back-end systems.
• You have excellent communication skills and ability to articulate complex and technical concepts to non-technical audiences.
• You have a continuous improvement mind-set, staying up to date with emerging technologies and industry trends.
• Experience with cloud platforms such as AWS, Azure, or Google Cloud

This is an exciting time to join a well-established organisation experiencing significant growth. You will have the opportunity to work on cutting-edge projects, develop new skills, and progress your career within a supportive and forward-thinking environment.

• Hybrid working model – 2–3 days per week in the London office
• Excellent career progression opportunities
• Up to £80k plus bonus plus benefits

If you are a Front End specialist with React.js expertise, confident working across the stack with C#, and are seeking your next career move, please apply via ARC IT Recruitment for immediate consideration.