NET Fullstack Developer

Avanti Recruitment is working with a business in Rotherham that is looking for an experienced Web Developer / .NET MVC Developer to join its in‑house development team. This role will require you in the office 3 days per week.

The company has a substantial ASP.NET MVC application estate, with roughly 75% of the current work focused on MVC. The majority of this is legacy .NET Framework 4.8 MVC, alongside newer modern .NET projects as the business gradually modernises its systems.

This role is therefore particularly suited to someone who is comfortable working hands‑on with traditional .NET Framework MVC applications, rather than someone whose recent experience has mainly focused on APIs, Microservices or separate React/Angular frontends. Experience across both legacy MVC and modern .NET would be particularly valuable.

The Role

You will be involved throughout the application lifecycle, including design, development, testing, implementation and ongoing support.

Responsibilities:

• Designing and developing web-based applications


• Building web interfaces for new and existing business systems


• Working across internal applications and public-facing websites


• Developing and supporting communication and integration layers


• Working with internal users and project managers to capture requirements


• Testing applications and resolving coding issues


• Considering application performance and browser compatibility


• Supporting existing applications while contributing to the move towards modern .NET


• Working within an Agile development environment

What We Are Looking For

Strong hands‑on experience of Microsoft web technologies. The key requirement is genuine ASP.NET MVC experience, particularly working with traditional .NET Framework MVC applications and the browser-facing side of web development.

Key skills include:

• C#


• ASP.NET MVC


• .NET Framework 4+ / MVC


• SQL Server


• Visual Studio


• HTML5


• CSS3


• Bootstrap


• JavaScript / jQuery


• REST APIs


• SOAP / web-service integrations


• Git and/or TFS

Experience with ASP.NET Core MVC / modern .NET would be highly beneficial as the business continues to modernise its applications.

Experience with any of the following would also be beneficial:

• Blazor


• Azure


• Mobile or application development


• SSRS


• Crystal Reports


• .NET Aspire

You should be comfortable working across Models, Views and Controllers, maintaining and improving existing applications as well as contributing to newer development work.

Strong communication skills, the ability to work collaboratively and confidence using your own initiative are also important.

Salary £35k - £50k (DOE) + Benefits.