Senior C# / .NET Developer
EU
June 25, 2026 at 10:46 AM
✨ AI summary
Location
- Bizkaia, Basque Country, Spain
Languages
- C#
- HTML
- JavaScript
- CSS
Frameworks
- ASP.NET Web API
- .NET 6
- Entity Framework
Cloud Services
- Microsoft Azure
Experience Level
- 5+ years ASP.NET development
- 3+ years RESTful API design
Location- Bizkaia Basque Country SPAIN
Job Overview
Job Overview
- We are looking for an experienced Senior ASP.NET Web API Developer to join a growing IT team. The ideal candidate has strong backend development expertise, excellent collaboration skills, and experience working in Agile environments.
- Collaborate with Product Owners to gather requirements and define user stories.
- Work closely with Front-End developers to design API integrations and system interactions.
- Design, develop, and maintain RESTful APIs and backend services.
- Design and optimize database architecture.
- Perform testing, troubleshooting, documentation, and support of developed solutions.
- Participate in the full software development lifecycle, from design through deployment.
- Bachelor's degree in Computer Science, Engineering, Mathematics, Physics, or a related field.
- 5+ years of experience in ASP.NET development (.NET 6 preferred).
- 3+ years of experience designing and developing RESTful APIs.
- Strong knowledge of SOLID principles, Dependency Injection, and backend best practices.
- 3+ years of experience with Entity Framework and backend testing.
- Experience with cloud-based microservices architectures is a plus.
- Experience deploying and maintaining backend applications using Azure, IIS, or similar platforms.
- Basic knowledge of HTML, JavaScript, and CSS.
- Intermediate to advanced English communication skills (B2+).
- Experience in manufacturing or industrial environments is advantageous but not required.