Web Application Developer

About our client

Our client is a highly successful and profitable engineering technology business, developing innovative software and hardware solutions for customers across automotive, robotics, autonomous systems and advanced engineering markets worldwide.

With continued growth and investment in its technology function, the company is expanding its software development capability, with a particular focus on modernising and developing its suite of web-based applications.

Combining the financial stability of an established business with an innovative, product-focused engineering culture, this is an excellent opportunity to join a company where software plays an increasingly important role in its future growth.

About the role

We're looking for an experienced Senior Software Engineer with strong C#/.NET and React experience to join a collaborative, multidisciplinary development team based near Bicester.

This is a full-stack, product-focused development position, with a particular emphasis on building, enhancing and modernising web applications using C#/.NET on the backend and React on the frontend.

You'll be working on applications that support the company's wider technology portfolio, including platforms used to configure products, visualise complex data, monitor performance and provide customers with intuitive, feature-rich interfaces.

Working alongside other Software Engineers, as well as Electronics, Firmware and Systems Engineering teams, you'll contribute to the design and delivery of modern, scalable applications that interact with sophisticated engineering technologies.

You'll have the opportunity to influence technical decisions, introduce new ideas and play a key role in shaping the company's evolving web application architecture.

The role

• Design, develop and maintain modern web applications using C#/.NET and React.
• Build robust, scalable backend services and RESTful APIs using .NET.
• Develop responsive, intuitive frontend interfaces using React, JavaScript and TypeScript.
• Work on data-rich applications, including dashboards, visualisation tools and product configuration interfaces.
• Contribute to the modernisation of existing software applications and the development of new web-based products.
• Collaborate with Software, Electronics, Firmware and Systems Engineers to integrate applications with wider engineering systems.
• Participate in architectural decisions, technical discussions, peer reviews and code reviews.
• Write clean, maintainable and well-tested code, following modern software engineering best practices.
• Take ownership of features throughout the full software development lifecycle, from initial requirements through to deployment and ongoing improvement.

What are we looking for?

• Strong commercial software development experience using C# and .NET / ASP.NET Core.
• Hands-on experience developing modern frontend applications using React.
• Good knowledge of JavaScript and/or TypeScript, HTML and CSS.
• Experience designing, developing and integrating RESTful APIs.
• A solid understanding of object-oriented programming, software architecture and design principles.
• Experience working with relational databases, ideally SQL Server or similar.
• Familiarity with modern software development practices, including Git, automated testing and CI/CD.
• The ability to work confidently across both frontend and backend development.
• Strong problem-solving skills and the ability to work collaboratively within a technically experienced engineering team.

Desirable, but not essential

• Previous experience developing applications for engineering, scientific, industrial or hardware-related products.
• Experience working with real-time data, data visualisation or complex dashboard applications.
• Exposure to Azure or other cloud platforms.
• Knowledge of desktop technologies such as WPF, or experience migrating desktop applications towards modern web-based solutions.
• An interest in emerging technologies and modern approaches to application development.

What's on offer?

• Salary up to £45k
• Discretionary annual profit share bonus
• Hybrid working – 4 days in the office, 1 day from home
• 27 days' annual leave plus bank holidays
• 5% employee / 5% employer pension (Scottish Widows salary sacrifice scheme)
• Private Medical Insurance
• Group Income Protection
• Death in Service Scheme
• Electric Vehicle Scheme
• Smart casual dress code

Our client is also happy to consider candidates seeking a four-day working week, offering genuine flexibility around working arrangements.

This is an excellent opportunity for a Senior Software Engineer who enjoys working across the full stack and wants to develop modern web applications within a technically sophisticated, product-led engineering business.

You'll be joining a financially strong, growing organisation where your work will have a direct influence on the development of innovative products used by customers around the world.