Published on Feb. 10, 2026

Intern - Software developer (f/m/d)

Plansee Group

About the job

100.000 Produkte und Werkzeuge aus den starken Metallen Wolfram und Molybdän: das ist seit über 100 Jahren unsere Mission und unsere Leidenschaft, die 11.000 Mitarbeiter:innen aller Welt teilen.

Wir von der Plansee Group haben noch viel vor – und werden mit Ihnen noch besser! Werden Sie Teil unseres Teams!
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.

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Required skills

Data Analysis Attention to Detail English Python Git Machine Learning Software Development Methodologies