Job Summary: We are seeking a .NET Backend Developer to build and evolve applications, ensuring code quality, performance optimization, and service integration. Key Highlights: 1. Development of high-impact Back-End solutions using .NET Core and C#. 2. Design with advanced architecture and best practices such as SOLID, KISS, and DRY. 3. Collaboration within an agile, multidisciplinary team, sharing knowledge. Would you be interested in further developing your career as a **.NET Developer** at a **leading international transportation sector company**, within a **collaborative environment**, applying **advanced architectural principles**, and promoting **development standards, code reviews, and best practices**? At **Oxigent Technologies**, we are looking for a **.NET Backend Developer** whose primary mission will be to **build and evolve applications**, ensuring **code quality**, **performance optimization**, and **integration with various services** and **databases**. **What will your main responsibilities be?** * **Develop high-impact Back\-End solutions:** Create and implement scalable C\# (.NET Core) applications and REST APIs as part of the modernization of critical platforms. * **Design with architecture and best practices:** Apply development principles such as SOLID, KISS, and DRY, and participate in designing robust, maintainable, and efficient solutions. Propose technical improvements and innovations to optimize system performance. * **Ensure quality and performance:** Design and execute unit and automated tests, optimize database queries and access, and ensure code complies with the highest quality standards. * **Collaborate and grow professionally:** Work within an agile, multidisciplinary team, participate in code reviews, share knowledge, support junior colleagues’ development, and learn from industry experts. **What do you need for this role?** * Minimum **5 years’ experience in Back\-End application development** (C\# 8+, WebAPI services, .NET Core 5+). * Experience in designing and implementing **REST APIs** (minimum 2 years). * Knowledge of **web services, handling requests (handles, callHttp), and messaging (RabbitMQ).** * Experience with **Async/Await** * Experience with **relational databases (SQL Server).** * Proficiency in **Entity Framework, LINQ, and ADO.NET.** * Knowledge of **Redis as a distributed caching system.** * Experience in **Unit Testing and automated testing.** * Experience working in continuous integration and **continuous deployment (CI/CD) environments, preferably with Azure DevOps.** * Knowledge of profiling and performance analysis (desirable). * Desired experience using **Postman and/or designing regression tests.** **What do we offer?** * **Indefinite contract through Oxigent.** * **Salary commensurate with experience provided** (between €40,000 – €43,000 gross annual salary). * **Flexible working hours and intensive workday on Fridays and during summer months.** * **Remote work 4 days per week.** * **Training Voucher** to develop professionally in areas most relevant to you. * **Private health insurance.** * **Flexible compensation** applicable to health insurance, meals, transportation, childcare, and training. * **Gym and sports activity access app** across Spain with discounts. * **And many other benefits!** **Join the Oxigent team!** A company committed to sustainability and equal opportunities, where talent and technology know no gender. Location: Spain \- Barcelona Date: 02/10/2025 Salary: €43,000 Employment Type: Employee