NET Fullstack Developer
In-house fullstack .NET developer role in Rotherham (office 3 days/week), mostly maintaining and extending legacy ASP.NET MVC (.NET Framework 4.8) apps while helping modernise towards modern .NET. Day-to-day: design, build, test and support internal and public-facing web apps using C#, SQL Server, HTML5/CSS3/JavaScript.
- Compensation
- £35K–£50K / yr
- Location
- Rotherham, United Kingdom
- Work setup
- Not specified
- Seniority
- Not specified
- Employment
- Not specified
- Experience
- Not specified
- Category
- Fullstack
- Posted
Skills
Must have
- Strong hands-on ASP.NET MVC experience, particularly with traditional .NET Framework MVC applications
- C#
- .NET Framework 4+ / MVC
- SQL Server
- Visual Studio
- HTML5
- CSS3
- Bootstrap
- JavaScript / jQuery
- REST APIs
- SOAP / web-service integrations
- Git and/or TFS
- Strong communication skills and ability to work collaboratively
- Comfortable working across Models, Views and Controllers
Nice to have
- Experience with ASP.NET Core MVC / modern .NET
- Blazor
- Azure
- Mobile or application development
- SSRS
- Crystal Reports
- .NET Aspire
Full description
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.