.NET Backend Developer

Description

**Location:** Madrid, Spain **Job ID:** R0122853 **Date Posted:** 2026\-04\-13 **Company Name:** HITACHI ENERGY SPAIN, S.A.U. **Profession (Job Category):** Data Analytics/Business Intelligence **Job Schedule:** Full time **Remote:** No **Job Description:** **The opportunity** Hitachi, Ltd. is seeking a talented .NET Backend Developer to design, develop, and maintain robust and scalable backend systems and APIs, contributing to critical enterprise applications. **How you’ll make an impact** * Design, develop, and implement high\-performance, scalable, and secure backend services and APIs using C\# and the .NET framework. * Collaborate with front\-end developers, product managers, and other stakeholders to understand requirements and translate them into technical solutions. * Write clean, maintainable, and efficient code following best practices and coding standards. * Participate in code reviews to ensure quality and adherence to architectural guidelines. * Troubleshoot, debug, and resolve issues in existing applications and systems. * Develop and maintain technical documentation for new and existing functionalities. * Optimize applications for maximum speed, scalability, and security. * Contribute to the continuous improvement of development processes and tools. Stay updated with the latest industry trends, technologies, and best practices. * **Your profile:** * Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience. * Minimum 5 years of proven experience as a Backend Developer with strong proficiency in C\# and the .NET framework (.NET Core/.NET 8\+). * Solid understanding of object\-oriented programming (OOP) principles and design patterns. * Experience with relational databases (e.g., SQL Server, PostgreSQL) and ORM frameworks (e.g., Entity Framework Core). * Familiarity with RESTful API design and development. * Experience with version control systems, preferably Git. * Knowledge of cloud platforms (e.g., Azure, AWS) is a plus. * Understanding of microservices architecture and message queuing systems (e.g., RabbitMQ, Kafka) is beneficial. * Strong problem\-solving skills and attention to detail. * Excellent communication and teamwork skills. **More about us** * We offer an inspiring international environment committed to the energy transition. * We deliver high value‑added projects at the core of major industrial and technological challenges. * We support your professional development through training, internal mobility, and international opportunities. * We foster a collaborative and inclusive company culture focused on innovation. * We provide attractive benefits, including competitive compensation and flexible, hybrid working options. **Qualified individuals with a disability may request a reasonable accommodation if you are unable or limited in your ability to use or access the Hitachi Energy career site as a result of your disability. You may request reasonable accommodations by completing a** **general inquiry form** **on our website. Please include your contact information and specific details about your required accommodation to support you during the job application process.** ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ **This is solely for job seekers with disabilities requiring accessibility assistance or an accommodation in the job application process. Messages left for other purposes will not receive a response.** ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------