.Net Backend Developper

Hitachi Energy; Barcelona; Presencial; EUR 42.000 - 66.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Annual Incentive Plan

Flexible Working

Meal Allowance

Life Insurance

Medical Check-up

Psychological assistance

Language trainings

Coaching & Assessments

Descripción de la vacante

Hitachi Energy is seeking a skilled .NET Backend Developer to design, develop, and maintain robust backend systems and APIs in a Barcelona-based role. You will collaborate with cross-functional teams to deliver scalable services using C# and the .NET platform.

The ideal candidate has strong C#, experience with EF Core, RESTful APIs, and relational databases, plus English and Spanish communication skills for global collaboration.

Formación

• 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 (Core/5+).
• Solid understanding of OOP and design patterns.
• Experience with relational databases (SQL Server, PostgreSQL) and ORM (EF Core).
• Familiarity with RESTful API design and development.
• Experience with Git and version control.
• Knowledge of cloud platforms (Azure, AWS) is a plus.

Responsabilidades

• Develop, test, and deploy backend services using C# and the .NET framework.
• Design and implement RESTful APIs and microservices.
• Collaborate with frontend developers, product managers, and stakeholders to translate requirements into technical solutions.
• Work with SQL Server and PostgreSQL for data storage and retrieval.
• Write clean, efficient, and well-documented code following best practices.
• Participate in code reviews to ensure quality and architectural alignment.
• Troubleshoot production issues and provide timely resolutions.
• Contribute to process improvements and adoption of new technologies.

Conocimientos

C#

.NET Core/.NET 5+

RESTful APIs

OOP & design patterns

SQL & ORM EF Core

Git

Cloud platforms (Azure/AWS)

English & Spanish communication

Educación

Bachelor's degree in Computer Science or related field

Herramientas

Entity Framework Core

SQL Server

PostgreSQL

Git

Azure

AWS

Descripción del empleo

The Opportunity

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
• Flexible Working
• Meal Allowance
• Life Insurance
• Medical Check-up
• Psychological assistance
• Language trainings
• Coaching & Assessments

Publication date : 2026-09-16