.NET Developer

Jumbo Interactive Limited; Lancaster; Hybrid; GBP 35,000 - 45,000; Full time

Benefits offered by this job

Annual regional bonus

25 days annual leave

Employee Assistance Program

Reward & Recognition programme

Worldwide travel down to 4 weeks

Job summary

StarVale requires a .NET Web Developer to rewrite PHP sites in .NET, migrate them to the .NET stack, and integrate with core business systems. You will collaborate across teams to shape shared architecture, perform code reviews, and document edge cases before decommissioning legacy PHP sites.

You will maintain and modernise our legacy .NET systems while supporting operations, using EF Core, SQL Server, and frontend basics. A hybrid role with 50% office work is offered in Lancaster.

Qualifications

• Solid commercial experience with C# and ASP.NET Core (or ASP.NET MVC with path to Core).
• Experience with EF Core and SQL Server relational databases.
• Frontend basics (HTML, CSS, JavaScript) with server-rendered .NET views or Razor Pages.
• Experience migrating/integrating systems between platforms/frameworks.
• Ability to translate PHP (Laravel/CodeIgniter) functionality into .NET.
• Good understanding of web fundamentals: routing, authentication, forms, SEO basics.

Responsibilities

• Design and build ASP.NET Core websites targeting modern .NET versions (including .NET 10).
• Migrate Laravel and CodeIgniter sites to the .NET platform while preserving functionality, SEO, and data integrity.
• Work with Umbraco CMS — extending existing implementations or building new sites where appropriate.
• Integrate websites with core .NET business systems and SQL Server databases.
• Write and maintain EF Core data access code, including migrating data from MySQL to SQL Server.
• Document business logic and edge cases from existing PHP sites before decommissioning.
• Contribute to shared architecture decisions, internal libraries, and coding standards.
• Write clean, tested, maintainable code and participate in code reviews.

Skills

C#

ASP.NET Core

ASP.NET MVC

EF Core

SQL Server

HTML

CSS

JavaScript

PHP translation

Routing

Authentication

SEO basics

REST API design

Agile (Kanban/Sprints)

Tools

Umbraco CMS

Blazor

Azure

Job description

Over the past 30 years, we’ve grown from humble beginnings with a single computer into a diversified, global, technology-enabled lottery and prize draw company (ASX: JIN). Today, Jumbo operates across Australia, the UK, Canada and the US, bringing together technology, creativity and purpose to create premium digital experiences people love.

Based in Galgate, StarVale is dedicated to strengthening the fundraising power of charities, not‑for‑profits, and hospices across the UK. We combine specialist lottery management with a genuine commitment to helping organisations maximise their impact, so more communities receive the support they deserve.

What will you be doing?

We’re looking for a .NET Web Developer to join us in this hands‑on build‑and‑migrate role. You will be rewriting existing PHP websites in .NET, integrating them with our business systems, and helping shape how we structure our shared architecture going forward. Working closely with cross‑functional teams, you will support day‑to‑day business needs, solve complex technical challenges, and contribute to high‑quality engineering practices through code reviews, documentation, and collaborative solution design.

What Your Day-to-Day Will Look Like

Your daily work will centre on maintaining, modernising, and progressively transforming our legacy .NET systems while supporting the smooth running of core business operations across StarVale. You can expect to:

• Design and build ASP.NET Core websites targeting modern .NET versions (including .NET 10)

• Migrate Laravel and CodeIgniter sites to the .NET platform while preserving functionality, SEO, and data integrity

• Work with Umbraco CMS — extending existing implementations or building new sites where appropriate

• Integrate websites with core .NET business systems and SQL Server databases

• Write and maintain EF Core data access code, including migrating data from MySQL to SQL Server

• Document business logic and edge cases from existing PHP sites before decommissioning

• Contribute to shared architecture decisions, internal libraries, and coding standards

• Write clean, tested, maintainable code and participate in code reviews

What You’ll Be Able to Bring to the Role

Essential

• Solid commercial experience with C# and ASP.NET Core (or strong ASP.NET MVC experience with a clear path to Core)

• Experience with Entity Framework Core (or EF) and relational databases (SQL Server)

• Comfortable working with front-end fundamentals (HTML, CSS, JavaScript) alongside server-rendered .NET views or Razor Pages

• Experience migrating or integrating systems between different platforms or frameworks

• Ability to read and understand PHP (Laravel and/or CodeIgniter) well enough to translate existing functionality into .NET — you won't be writing new PHP, but you'll need to understand what's there

• Good understanding of web fundamentals: routing, authentication, forms, SEO basics (URL structure, redirects)

Mindset & Soft Skills

• Migration Mindset: Confidence to evaluate legacy code, challenge outdated practices, and guide non-technical stakeholders through modernized technical solutions.

• Problem Solver: Highly resourceful with strong initiative, able to own projects independently from requirements‑gathering to deployment.

• Communication: Excellent people skills to liaise effectively between technical teams, external auditors, and cross‑departmental stakeholders.

Preferred:

• Experience with Umbraco CMS

• Experience with Blazor

• Familiarity with Azure or other cloud hosting for .NET applications

• Experience leading or contributing to a platform migration or legacy system modernization

• Understanding of REST API design, for connecting websites to internal business systems

• Ability to work within agile environments, including Kanban and Sprints.

Salary Banding: £35,000–£45,000 per annum, depending on experience.

Our Ways of Working

At StarVale, we value balance and flexibility. You will be based in our office in Galgate, Lancaster. This role is a flexible hybrid, typically averaging 50% in the office (2-3 days per week). We prioritise results and collaborate to make sure everyone can contribute effectively, while enjoying flexibility and balance in how they work.

Why Join StarVale?

Find Your Freedom - https://bit.ly/Jumbointeractive

At StarVale, our team thrives because we invest in our people. Here’s what you can expect from us;

• An annual regional bonus scheme that rewards your contributions, dependent on company performance.

• 25 days annual leave + public holidays + your birthday off.

• Access to our Employee Assistance Program, providing counselling and coaching.

• Reward & Recognition programme and length of service benefits.

• The freedom to work from almost anywhere in the world for up to 4 weeks a year.

Candidates who are offered a position will be required to complete pre-employment checks through our partner, Checkmate, which will include referencing, Right to Work in the UK and DBS checks. We are, unfortunately, unable to offer sponsorship opportunities.

We are a 2026 Circle Back Initiative Gold Employer – we commit to respond to every applicant.