.NET Backend Developer

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.

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