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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Asp.Net Web Api Developer - **Company:** Teccodd Careers - **Location:** Vitoria-Gasteiz, Spain (Remote available) - **Contract:** Permanent contract - **Skills:** ASP.NET, HTML, JavaScript (Programming Language), Microsoft Azure, Cascading Style Sheets (CSS), Databases, Dependency Injection, Entity Framework, Internet Information Services (IIS), Software Requirements Analysis, Asp.net Web Api, Software Application Programming, Backend, Integration Tests, Solid Principles, Front End Software Development, Api Design, Restful APIs, Api Management, Microservices - **Published:** August 8, 2026 - **Apply:** https://www.buscojobs.com.es/senior-asp-net-web-api-developer-en-vitoria-ID-365845682 ## About the Role Your daily responsibilities will include:Requirements Gathering: Partnering with Product Owners to refine software requirements and break them down into actionable User Stories.Frontend Collaboration: Working closely with Frontend Developers to design API contracts, communication pathways, and system dependencies.Architecture & API Development: Designing and implementing robust REST API architectures and optimized database schemas.Quality Assurance: Managing technical documentation, comprehensive unit/integration testing, and advanced system troubleshooting for all implemented backend components.Job Requirements Candidates must fulfill the following technical benchmarks:Minimum Qualifications Education: Technical Engineering degree (Ingeniería Técnica), Mathematics, Physics, or a highly related technical field.Core Framework: Minimum of 5+ years of hands-on experience in the ASP.NET framework (ideally ASP.NET Core 6.0 or higher). API Development: 3+ years of specialized experience building and maintaining REST APIs . Software Patterns: Expert-level mastery of SOLID principles, with profound experience implementing Dependency Injection . Testing & Databases: 3+ years of backend testing experience along with 3+ years of working with Entity Framework . Desirable / Valued Extras Experience with cloud-native microservices architectures.Experience deploying backend applications (e.G., Azure, IIS). Familiarity with frontend fundamentals (HTML, JavaScript, CSS). Intermediate English proficiency B2 level or higher.Familiarity or professional background within the machine tool, manufacturing, or industrial production industries.Work Schedule & Hybrid Model Hours: 40 hours per week (Full-time). Schedule: Monday to Friday, 08:00 to 13:00 and 13:30 to 16:30.Remote Work: Hybrid Model. 2 days of remote work per week / 3 days on-site in Zaldibar. (Note: The remote work distribution schedule is fixed). Recruitment Process The selection setup consists of 3 assessment phases . Key Screening Questions for Candidates How many years of experience do you have developing applications with ASP.NET? Have you worked with ASP.NET Core 6.0 or superior versions? How many years of experience do you have developing REST APIs? Do you have proven experience applying SOLID principles and Dependency Injection? Do you reside in Bizkaia or have full availability to work in a hybrid setup in Zaldibar? Please describe your most relevant project developing REST APIs with ASP.NET Core. Briefly mention your role, the tech stack, and the core features you built. ## Description JOB ID ****Roles & Responsibilities Developers in this department manage the full lifecycle of the applications they build.Your daily responsibilities will include:Requirements Gathering: Partnering with Product Owners to refine software requirements and break them down into actionable User Stories.Frontend Collaboration: Working closely with Frontend Developers to design API contracts, communication pathways, and system dependencies.Architecture & API Development: Designing and implementing robust REST API architectures and optimized database schemas.Quality Assurance: Managing technical documentation, comprehensive unit/integration testing, and advanced system troubleshooting for all implemented backend components.Job Requirements Candidates must fulfill the following technical benchmarks:Minimum Qualifications Education: Technical Engineering degree (Ingeniería Técnica), Mathematics, Physics, or a highly related technical field.Core Framework: Minimum of 5+ years of hands-on experience in the ASP.NET framework (ideally ASP.NET Core 6.0 or higher).API Development: 3+ years of specialized experience building and maintaining REST APIs .Software Patterns: Expert-level mastery of SOLID principles, with profound experience implementing Dependency Injection .Testing & Databases: 3+ years of backend testing experience along with 3+ years of working with Entity Framework .Desirable / Valued Extras Experience with cloud-native microservices architectures.Experience deploying backend applications (e.G., Azure, IIS).Familiarity with frontend fundamentals (HTML, JavaScript, CSS).Intermediate English proficiency B2 level or higher.Familiarity or professional background within the machine tool, manufacturing, or industrial production industries.Work Schedule & Hybrid Model Hours: 40 hours per week (Full-time).Schedule: Monday to Friday, 08:00 to 13:00 and 13:30 to 16:30.Remote Work: Hybrid Model.2 days of remote work per week / 3 days on-site in Zaldibar.(Note: The remote work distribution schedule is fixed).Recruitment Process The selection setup consists of 3 assessment phases .Key Screening Questions for Candidates How many years of experience do you have developing applications with ASP.NET?Have you worked with ASP.NET Core 6.0 or superior versions?How many years of experience do you have developing REST APIs?Do you have proven experience applying SOLID principles and Dependency Injection?Do you reside in Bizkaia or have full availability to work in a hybrid setup in Zaldibar?Please describe your most relevant project developing REST APIs with ASP.NET Core.Briefly mention your role, the tech stack, and the core features you built.#J-*****-Ljbffr ## Related Videos - [Why you must use TDD now!](https://www.wearedevelopers.com/videos/114-why-you-must-use-tdd-now) - [Building Multi-Tenant ASP.NET Core Applications: Best Practices and Real-World Solutions](https://www.wearedevelopers.com/videos/1552-building-multi-tenant-asp-net-core-applications-best-practices-and-real-world-solutions) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [Blazor – the new SPA Framework for everyone who hates JavaScript](https://www.wearedevelopers.com/videos/699-blazor-the-new-spa-framework-for-everyone-who-hates-javascript) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)