We are seeking a skilled .NET Backend Developer to join our team at HITACHI ENERGY SPAIN, S.A.U. You will be responsible for designing, developing, and maintaining robust and scalable backend systems and APIs to support our critical applications. How you will make an impact Develop, test, and deploy high-quality, scalable, and maintainable backend services 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. Design and implement RESTful APIs and microservices. Work with various database technologies (e.g., SQL Server, PostgreSQL) for data storage and retrieval.

Write clean, efficient, and well-documented code following best practices and coding standards. Participate in code reviews to ensure code quality and adherence to architectural guidelines. Troubleshoot and debug production issues, providing timely resolutions.

Contribute to the continuous improvement of our development processes and tools. Stay up-to-date with emerging technologies and industry trends. Your background Bachelor's degree in Computer Science, Software Engineering, or a related field.

Proven experience as a .NET Backend Developer. Strong proficiency in C# and the .NET framework (.NET Core/.NET 5+). 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.



Excellent problem-solving skills and attention to detail. Ability to work independently and as part of a collaborative team.

Good communication skills in English and Spanish (both written and verbal). More about us A holistic range of competitive benefit program to support your financial, physical and mental wellbeing and personal development. We want you to truly thrive with us - in work and out.

For this role, depending on grade and experience we offer the following employee benefits (subject to the respective plan rules): Annual Incentive Plan, Versátil Working, Meal Allowance, Life Insurance, Medical Check-up, Psychological assistance, Language trainings, Coaching & Assessments. Job function Data Analytics | Warehousing & Business Intelligence Contract Regular Publication date 2026-09-16 Reference number R0117892 About Hitachi Energy We are a global leader in electrification, powering the electricity era to meet the energy demands of today, and the next 25 years. As the energy arm of Hitachi Group, over three billion people depend on our pioneering, mission-critical technologies to power their daily lives.

With over a century of innovation, we are addressing the most urgent energy challenge of our time: driving the evolution of the world’s energy system to ensure abundant, secure, affordable, and sustainable power for today’s generation and the next. With an unparalleled installed base in over 140 countries, we are the grid ecosystem partner across the utility, industry, data center, and transportation sectors. Headquartered in Switzerland, we employ over 56,000 people in 60 countries and generate revenues of around $20 billion USD.

We welcome you to apply today.

📌 .Net Backend Developper | Madrid, Spain
🏢 Hitachi Abb Power Grids
📍 Madrid