Can you imagine modernizing a business-critical platform used in automotive workshops while shaping its transition to a modern web architecture?

Join our expert team to work on an Automotive sector modernization initiative, contributing to the evolution of a workshop management solution. You will apply your knowledge of .NET, API Development, AWS and modern software engineering practices to transform a legacy desktop application into a scalable web-oriented platform. You will collaborate with multidisciplinary teams while ensuring system stability and enabling continuous modernization. At ERNI, you are never just a number. Even if you work on an external project, you will feel part of the team and always supported.

What You Will Bring

Strong experience with .NET backend development.

Experience designing and implementing REST APIs.

Knowledge of AWS cloud services and CI/CD practices.

Experience supporting production environments and troubleshooting incidents.

Experience working with GitHub and Agile environments.





You will be responsible for designing and developing backend services and APIs using .NET while supporting the modernization of a legacy workshop management platform. Collaborating with multidisciplinary teams, participating in CI/CD processes and AWS integrations, providing production support and incident resolution, and contributing to the evolution towards scalable web-based solutions while maintaining system stability.

What if the project ends?
We work on a wide variety of projects, technologies, and sectors, allowing you to keep growing in different environments. If a project ends or you feel ready for a new challenge, we will find another one that aligns with your professional development.

Our working model
We ask you to be available for key meetings. Need to leave for a doctor’s appointment or to pick up your child from school? No problem. We trust you to deliver quality work within your 40-hour workweek.

Our model is hybrid: we usually go

📌 .NET Developer (Madrid)
🏢 Erni
📍 Madrid