Lead .NET Software Engineer (a)

• 25 June 2026 • 100% • Indefinite duration • 8001 Zürich • Log in to see the jobup.ch salary estimate We are ERNI. Since 1994, we have been advising and supporting companies in innovation and technology with the goal of increasing our customers' entrepreneurial performance and thus paving the way into the digital tomorrow. Our key to success: people like you and our mindset shaped by Swiss values. We want our customers to be more effective and innovative than anyone else. Together we achieve these high goals - in partnership, as a real team and with real values. This is how we design processes as simple and smart as possible - with around 800 employees at 18 locations in 8 countries and perhaps soon with you! What awaits you: ## • Technical responsibility for architecture, design and implementation of modern software solutions in the .NET environment (hands-on coding). • Development of backend services with ASP.NET Core as well as cross-platform applications in the .NET environment (e.g., with .NET MAUI). • Design and implementation of database solutions using technologies such as Entity Framework Core, SQL Server or SQLite. • Ensuring software quality, security (authentication & encryption) and clean code standards through code reviews and best practices. • Technical leadership within the project (no disciplinary leadership) as well as close cooperation with customers and interdisciplinary teams. • Support in technical presales phases and active co-design of technical solutions. What you bring: ## • Completed studies in computer science or business informatics (ETH, FH, Uni or HF) • Several years of experience in software development with a focus on C# and .NET (.NET Core / .NET 10). • Experience in a senior or technical lead role with a focus on architecture and hands-on development. • Very good knowledge of ASP.NET Core as well as experience in the development of cross-platform applications in the .NET environment; knowledge of .NET MAUI is a great advantage. • Experience with modern data access technologies (e.g., Entity Framework Core) and relational database systems (e.g., SQL Server, SQLite) as well as with secure authentication and security concepts. • Confident handling of Visual Studio, Azure DevOps as well as common collaboration tools (Jira, Confluence). • Experience with Microsoft Azure (e.g., Azure Portal, VMs) or Telerik is a plus. • Very good German and English skills in spoken and written form That is why we offer you: ## • Individual development program that promotes your professional and personal potential • Remote work up to 5 weeks per year outside of Switzerland, but within Europe • Flexible working hours for an ideal balance between professional and private life • Unforgettable team and company events that strengthen cohesion • Generous pension fund contribution, where we cover two thirds of the pension contributions, while your share is only one third Become curious? Take a look at our website and experience for yourself what makes us special - or discover on Kununu what our team has to say about us.