Leader in Engineering and Enterprise IT Services, ALTEN has nearly 60,000 employees, 88% of whom are engineers. With a presence in more than 30 countries, the Group supports its customers' development strategies in the areas of innovation, R&D and technological information systems.

Why choose ALTEN?   

The opportunity to take part in the greatest technological challenges;  

Close support in a collaborative work environment;  

A real career gas pedal in France and internationally 

We are looking for someone eager to grow their skills in mobile network testing and automation to join a project focused on 3GPP-based cellular modem verification.

In this role, you will support the team in testing, verifying and troubleshooting how cellular modems interact with global mobile networks. You will work with mobile network simulators (Keysight Anite 9000, R&S CMW500), develop automated test scripts, and collaborate with experienced engineers to ensure reliable connectivity in connected devices.

This is a fantastic opportunity to kickstart your career in telecom testing while working with cutting-edge technology in a supportive environment!

About the role

• Assist in planning and executing test cases for mobile network connectivity, including modem configuration and emergency call verification.
• Develop and maintain basic automated test scripts using Python and Robot Framework, with guidance from senior team members.
• Operate mobile network simulators (e.g., Keysight Anite 9000, R&S CMW500) to replicate network scenarios.
• Support troubleshooting modem and network signaling issues (e.g., VoLTE/VoNR failures, dual APN logic).
• Collaborate with the team to document and track issues using Jira.
• Learn and apply 3GPP standards and industry best practices for mobile network testing.

Required Skills & Experience

• Basic understanding of telecom or mobile networks, either through studies, internships, or personal projects.
• Familiarity with Python or another scripting language (e.g., Java, C++).
• Interest in test automation and willingness to learn tools like Robot Framework.
• Knowledge of embedded systems or Linux tools (e.g., Git, Jenkins) is a plus.
• Strong problem-solving skills and a proactive attitude.
• Good communication skills in English (both written and verbal).
• Eligibility for the VIE program under Business France regulations

Desirable Skills

• Exposure to mobile network testing or 3GPP standards (e.g., through coursework or projects).
• Experience with test automation frameworks (e.g., Robot Framework, pytest).
• Familiarity with VoLTE/VoNR, eCall, or IMS registration.
• Basic knowledge of CI/CD pipelines or Jira

Our Three Pillars of Commitment to Sustainable Development

ALTEN’s approach to sustainability and corporate social responsibility is built on three fundamental pillars:

People
We celebrate the richness of diversity among our employees, representing over 100 nationalities. We are committed to fostering an inclusive environment where everyone can thrive and make meaningful contributions.
We support skills development and actively guide our talents in their personal and professional growth.

Environment
Our mission is to minimize our environmental impact while promoting sustainable growth. We are committed to achieving carbon neutrality by 2050 — a goal that drives our operations and shapes our strategic initiatives.

Sustainable Innovation
At ALTEN, we view the challenges of sustainable development as opportunities for research and innovation. With 31% of our internal R&D dedicated to sustainable innovation, we are determined to transform these challenges into value-creating, progress-driven solutions.