Senior Developer at Fourth

Are you ready to shape the technology that powers restaurants and hospitality businesses around the world? We invite you to bring your expertise to Fourth and help us deliver the SaaS solutions our clients rely on every day.

What you bring

We are looking for a Senior Developer to join our HR UK team on a full-time basis. In this hybrid role you will work from our London office one day each week and contribute across the entire software delivery lifecycle using Agile and Scrum practices. Your background in software engineering within the hospitality and SaaS sectors, together with hands-on experience in SQL, C#, .NET Framework, .NET Core, REST APIs, unit testing, TDD, Jenkins, and Azure DevOps, will be central to our success.

• Collaborate with product, engineering, and stakeholders to translate requirements into high-quality solutions that meet acceptance criteria.
• Design and implement complex software features independently while writing clean, maintainable, and efficient code.
• Take part in code reviews, mentor junior colleagues, and apply advanced troubleshooting skills throughout the development lifecycle.

This position is based in the United Kingdom.

Requirements

You will have five to seven years of professional software development experience, including at least five years working with Microsoft SQL Server and stored procedures as well as five or more years building applications in C#, .NET Framework 8.x and above, and .NET Core. Hands-on experience maintaining and extending legacy code bases in VB6 and Classic ASP is essential, along with proven delivery of REST APIs on the Microsoft stack. You should be comfortable applying unit testing and test-driven development, and you will have worked with Jenkins or Azure DevOps for continuous integration. Strong communication skills, a collaborative mindset, and the ability to work both independently and as part of a team are equally important. The working language is English, and a degree or equivalent professional experience in computer science or a related field is expected. Familiarity with Blazor, Octopus Deploy, Azure, Kubernetes, or Terraform is considered an advantage.

What we offer

In addition to a dynamic hybrid environment, we provide a comprehensive benefits package that supports your wellbeing, growth, and work-life balance.

• 25 days of annual leave, increasing to 30 with service, plus your birthday and all bank holidays.
• Flexible working hours and hybrid arrangements.
• Wellness programs and gym subscription discounts.
• Home office budget for equipment and laptop.
• Medical insurance and healthcare expense claims.
• Professional development support including certifications.
• Commuter benefits such as the cycle-to-work scheme and season ticket loans.
• Life insurance and pension options.

How to Apply

If this opportunity aligns with your experience and ambitions, we encourage you to apply and become part of our global team. We look forward to learning more about how you can contribute to Fourth’s continued growth.