Join the YieldStar team at ASML, where we develop high-precision optical metrology tools used in semiconductor manufacturing. Log analysis plays a key role in diagnosing machine behavior across different operational phases. This internship focuses on enhancing a log analysis tool based on Tracy, an open-source Visual Studio Code extension developed by TNO. You will help improve its stability, expand its capabilities, and collaborate with TNO to contribute back to the open-source community.
 

In this non-thesis bachelor internship, you will work on improving a C# version of Tracy, which adds conditional color coding to log files. Earlier versions of the tool have shown promise but require further development and testing. You will gather user feedback, refine the tool’s functionality, and help prepare it for open-source release.
 

Your main responsibilities will be:

Analyze the current tool and identify areas for improvement.

Collaborate with stakeholders to gather feedback and define requirements.

Enhance the tool’s stability and expand its feature set.

Align the C# version with Tracy’s original TypeScript implementation.

Prepare the tool for contribution to the open-source community.

Work closely with TNO to ensure compatibility and shared goals.

Document the development process and user guidelines.
 

This is a vocational/HBO/WO bachelor internship for minimum 6 months, minimum 5 days per week (3 days on-site). The start date of this internship is as of February 2026.

To be suitable for the internship, you:

Are pursuing a bachelor’s degree in software engineering, computer science, information technology, or a related field.

Have an interest in log analysis and open-source development.

Are familiar with C# and/or TypeScript, or are motivated to learn both.

Are proactive, with strong communication skills.

Enjoy working in a collaborative, stakeholder-driven environment.
 

Other requirements you need to meet:

You are enrolled at an educational institute for the entire duration of the internship;

Attach your cover letter with a clear motivation why you are interested in this internship assignment in particular;

You need to be located in the Netherlands to be perform your internship. In case you are currently living/studying outside of the Netherlands, your CV/motivation letter includes the willingness to relocate.

If you are a non-EU citizen, studying in the Netherlands, your university is willing to sign the documents relevant for doing an internship (i.e., Nuffic agreement).

ASML is an Equal Opportunity Employer that values and respects the importance of a diverse and inclusive workforce. It is the policy of the company to recruit, hire, train and promote persons in all job titles without regard to race, color, religion, sex, age, national origin, veteran status, disability, sexual orientation, or gender identity. We recognize that inclusion and diversity is a driving force in the success of our company.

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