MARCO, a globally recognised automation and technology company and part of the ATS Group, is seeking a dynamic Senior Software Developer to join our growing development team. We are looking for a capable and enthusiastic C# .NET Developer to join our team. You will be working across a mix of greenfield projects, R&D initiatives, and modernising legacy systems. This is a fantastic opportunity to flex your skills, while learning new ones along the way.
What We are Looking For: You will need to have solid experience, with the full software development lifecycle — from concept and design through to testing and deployment. We are looking for someone who can hit the ground running, contribute ideas, and enjoy being part of a collaborative, solution-focused team.
The ideal candidate will be within regular commuting distance to our dedicated office in Blaby, Leicester however outstanding candidates with significant desired experience will be considered on a remote basis.

CORE TECHNICAL SKILLS REQUIRED:

• Solid experience with C# and the .NET framework, with the confidence to build clean, maintainable code
• Solid experience with relational database design, in particular with SQL Server, with a thoughtful approach to data structure and performance

DESIRED EXPERIENCE WITH (SOME, BUT NOT ALL):

• Desktop application frameworks, such as WPF, WCF, or UWP
• Web technologies such as ASP.NET Core, JavaScript, jQuery, and Progress Kendo UI
• Entity Framework Core or other ORMs for data access
• Azure or other Cloud platforms—especially with an eye towards future deployments
• Clear, structured technical documentation, from design specs to testing materials
• Mobile app development, particularly with Xamarin or .NET for Android
• Hardware integration, including ESP32 microcontrollers or PLCs
• Source control using Git and collaborating via branches, pull requests, and versioning workflows
• SQL Server Management Studio (SSMS) for working with relational databases
• Visual Studio (latest version) for day-to-day development
• Strong interpersonal skills—interpreting customer needs, supporting users, and clearly communicating ideas within the team
• AI-enhanced development, such as using GitHub Copilot, coding with AI tools, or even training models
  This is a unique opportunity to contribute to our growth and be a key player in delivering cutting-edge solutions to the Fresh Produce industry across 45 countries.

• Contributing to the design and development of new software products and R&D projects
• Maintaining and modernising legacy systems by converting them to C# .NET
• Working across the full development lifecycle
• Collaborating with cross-functional teams
• Supporting the continuous improvement of development practices, tools, and workflows
• Participating in code reviews and sharing knowledge with other team members
• Occasionally liaising with internal stakeholders, or customers to clarify requirements or support installations and upgrades