Software Engineering Intern

Who we are

Since 2009, the company has sold practice management software to dental and veterinary clinics in Switzerland. Clients range from single-location retailers to franchise groups with hundreds of stores, all running our point-of-sale and loyalty software.

The internship

This is a hands-on coding internship. Most of the work is in Python and Node.js, with some SQL and a bit of shell scripting. The internship is fully remote. Interns join our Basel team on daily calls and get a named mentor. Working hours overlap with Central European Time.

Day to day

• Present a short demo of your work to the team every two weeks
• Add unit tests with pytest or Jest so new code does not lower coverage
• Raise pull requests on GitHub and respond to code review comments within a day
• Debug failing builds in the GitHub Actions pipeline and note what caused them
• Profile slow endpoints and suggest fixes, such as adding an index or caching a result
• Fix bugs from the Jira backlog, starting with small, well-defined tickets
• Write and test backend features in Python or Node.js under the guidance of a senior developer
• Update the README and internal Confluence pages when you change how something works

Requirements

• Eligible to work in Brazil
• Currently enrolled in a bachelor's or master's degree, graduating 2026 or 2027
• Available for 30 to 40 hours a week for the full internship period
• Comfortable writing simple SQL queries (SELECT, JOIN, GROUP BY)
• Own laptop with at least 8 GB RAM and a reliable internet connection

What you'll learn

• You will ship at least one feature that real users touch before the internship ends
• Certificate and letter of recommendation on completion, plus a pre-placement offer for strong performers

Duration: 4 months

Start date: Dec 2026

Stipend: R$10,000 - R$11,000 monthly

What we offer

• Online learning budget
• Letter of recommendation
• Mentorship
• Company laptop
• Paid public holidays

Please mention your notice period and expected salary.

Duration: 4 months. Start: Dec 2026.

Demo job created on 11jobs for testing and demonstrations. It is not an actual opening at Chalkmark Labs AG.