Job Summary: We are seeking a C#/.NET developer to design, develop, and maintain web applications, collaborate within teams, mentor colleagues, and apply best practices and innovative solutions. Key Highlights: 1. Web application design, development, and maintenance in .NET 2. Collaboration with multidisciplinary teams and mentoring colleagues 3. Application of best practices and innovative solutions We are knowmad mood! We are a leading digital transformation company, continuously evolving and at the forefront of technology. We were founded to drive real change through innovation and sustainable development, with a mission to deliver value to our clients and empower our talent. Composed of more than 3\.000 creative, digital, and innovative people connected to a shared purpose and capable of building connections with individuals worldwide. A responsible, flexible team with high adaptability to our clients’ and the market’s needs—while consistently delivering value, vision, creativity, expertise, professionalism, and passion for technology in every project. Our core values guiding us toward excellence are collaboration, innovation, commitment, fun, and trust. **What do we value?** * **4\+ years of experience in C\# development** and .NET. * Knowledge of **ASP.NET Core / ASP.NET (MVC, WebAPI)** and **REST APIs / SOAP services / microservices**. * Experience with **relational databases** (Microsoft SQL Server, PostgreSQL) and **NoSQL databases** (MongoDB, Redis). * Proficiency in **JSON, XML**, and best practices for **scalable and maintainable code**. * Application of **design patterns** (DDD, SOLID) and industry standards. * Experience with **unit and integration testing, code coverage, and mocking**. * Experience with **version control (Git)** and **CI/CD tools**. * Capacity for **continuous learning**, teamwork, and mentoring. * Experience working with **agile methodologies**, and ownership of services throughout their entire lifecycle. **What would be your responsibilities?** * Design, develop, and maintain **web applications** in .NET. * Collaborate with development teams, architects, DevOps, and business stakeholders. * Propose and implement **technical solutions to complex problems**, and optimize existing solutions. * Apply best practices for scalability, stability, quality, and accountability. * Mentor less experienced colleagues and contribute improvement ideas for products and services. * Actively participate in projects featuring diverse architectures, adapting solutions to each specific case. Hybrid work model: offices in **Madrid or Palma de Mallorca** Working hours: Mon–Thu 08:00–14:00 / 15:00–17:30; Fri 08:00–14:00 No summer intensive schedule *At* ***knowmad mood*** *we are committed to equal opportunities and respect for diversity. We implement our Equality Plan and the principle of non-discrimination across all our recruitment processes.* Stay updated on our latest news by following us here \-\> knowmad mood