Junior Software Developer – SIM/eSIM Tools (Madrid)

About the role

We are looking for a Junior Software Developer to join our Operations team in Madrid. You will help create and maintain testing and personalization tools for SIM and eSIM manufacturing across our global factories.

Key responsibilities

• Develop software tools for SIM/eSIM testing and personalization processes.
• Support manufacturing and quality‑control operations.
• Collaborate with Technical, R&D, and Operations teams.
• Work with databases and integrate software components.
• Analyze and resolve technical incidents and development requests.
• Participate in SIM/eSIM qualification activities.

Required profile

• Vocational training (FP) or degree in Programming, Software Development, or Computer Science.
• At least 1 year of programming experience with MS.NET (VB.NET/C#) and C++.
• Good written and spoken English.
• Knowledge of MySQL, SQL Server, and Oracle databases.
• Strong problem‑solving and analytical skills.
• Eagerness to learn new technologies.

Required skills

• VB.NET
• C#
• C++
• MySQL
• SQL Server
• Oracle

What we offer

• Flexible working hours and remote‑work options.
• Private medical and life insurance.
• Opportunities to work on innovative, global technology projects.
• Multicultural, multidisciplinary teams and continuous learning environment.
• Inclusive culture that values diversity and equal opportunity.