Senior .NET Developer Full Stack

I-Ray IT Solutions AB is looking for an experienced Senior .NET Developer to join our development team in Sweden. We are looking for someone who enjoys building and maintaining business applications, solving technical problems, and working closely with both technical and business teams. About the Role As a Senior .NET Developer, you will work with both backend and frontend development and take responsibility for developing, improving, and maintaining enterprise applications. You will work in an Agile/Scrum environment and collaborate with developers, testers, business analysts, product owners, and other stakeholders. The role also involves troubleshooting complex technical issues, supporting users when needed, and sharing knowledge with other team members. You will be expected to take ownership of your work, contribute to technical discussions, and help less experienced developers through knowledge sharing and mentoring. Key Responsibilities Develop, enhance, and maintain applications using C# and .NET Work with both frontend and backend development Design and develop REST APIs and business services Develop and optimize Microsoft SQL Server databases Create and maintain stored procedures and complex SQL scripts Work with React and TypeScript for frontend development Use Git for source code management Work with Azure DevOps for development, CI/CD, and project activities Participate actively in Agile/Scrum ceremonies and team activities Investigate and resolve complex technical issues Collaborate with business stakeholders and translate requirements into technical solutions Contribute to testing, troubleshooting, and production support Support onboarding and knowledge sharing within the development team Follow good practices for code quality, security, documentation, and maintainability Required Skills and Experience Minimum 5 years of professional IT development experience in a Microsoft/.NET environment Minimum 4 years of professional experience with C# Minimum 4 years of experience with .NET Framework 4.8 Minimum 1 year of experience with .NET 8 or later Minimum 5 years of experience with Microsoft SQL Server Strong experience with advanced SQL, including stored procedures and complex SQL scripts Minimum 5 years of experience with Git or similar version control systems Minimum 3 years of recent experience working with Agile methodologies Minimum 3 years of recent experience with Azure DevOps Minimum 3 years of recent experience with React and TypeScript Ability to work independently as well as collaboratively in a team Strong problem-solving and communication skills Good spoken and written Swedish English communication skills are also expected Who We Are Looking For We are looking for a responsible and proactive developer who enjoys solving problems and taking ownership of technical tasks. You should be comfortable communicating with both technical and non-technical stakeholders and have an interest in supporting the development of other team members.