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 adaptable, hybrid working options.

📌 .NET Backend Developer (Madrid)
🏢 JobFlurry
📍 Madrid