Published on Feb. 11, 2026

Intern - Software developer (f/m/d)

CERATIZIT SA

About the job

100,000 products and tools made of the strong metals tungsten and molybdenum: This has been our mission and passion for over 100 years, shared by 11,000 employees all over the world.

We at the Plansee Group still have big plans – and we will get even better with you! Become part of our team!

Your tasks :

  • Contribute to the full development lifecycle

  • Collaborate closely with a team of Data Scientists, Data Engineers, and Software Engineers

  • Develop, improve, and maintain Python application(s)

  • Refactor and clean existing codebases to improve readability, structure, and long‑term maintainability

  • Implement automated tests (unit tests, integration tests) to ensure code robustness

  • Implement ML pipelines, APIs, data preparation and more!

  • Stay updated with the latest industry trends and technologies to continuously improve skills and knowledge

  • Support various AI and data-driven projects by helping industrialize and productionize prototypes


Your profile
:

  • Knowledge in Python. Experience/interest in AI / Machine learning is plus

  • Knowledge of software development methodologies and version control systems (Git)

  • Languages : Speaking fluently English

  • Be rigorous, methodical and enjoy working as part of a team

Our offer :

  • Attractive working conditions: flexible working hours, 2 days paid vacation per month, company restaurant...

  • Company bus from certain border areas and free shuttle bus from Mamer station

  • Professional experience in an environment that fosters team spirit and creativity

  • Internship with a leading international industrial group

  • A dynamic, friendly, and supportive team environment

Arthur Wolter | Recruiting Team | arthur.wolter@plansee-group.com


Plansee Group Functions Luxembourg S.A.

Apply Now

Required skills

English Python Git Machine Learning Software Development Methodologies Automated Testing Data Preparation