Summer Software Engineering Intern

About Walnutcraft

Our main product is a payroll and timekeeping app for hourly workforces, sold by subscription and supported from New York City. Customers use our platform to manage equipment rentals: reservations, check-out, damage photos, invoicing and QuickBooks sync. Laptops are MacBook Pros, and you pick your own editor.

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 New York City team on daily calls and get a named mentor. Core hours are 9:00 AM to 1:00 PM US Eastern.

Responsibilities

• Fix bugs from the Jira backlog, starting with small, well-defined tickets
• Profile slow endpoints and suggest fixes, such as adding an index or caching a result
• Present a short demo of your work to the team every two weeks
• Debug failing builds in the GitHub Actions pipeline and note what caused them
• Write and test backend features in Python or Node.js under the guidance of a senior developer
• Join the daily 15-minute standup on Google Meet and post a short written update in Slack

Who can apply

• Available for the full internship period
• Based in Germany for the duration of the internship
• Currently enrolled in a bachelor's or master's degree, graduating between December 2027 and June 2028
• A GitHub profile with at least two projects you wrote yourself
• Some experience with Git, even if only on college or personal projects
• Available for 30 to 40 hours a week for the full internship period
• Own laptop with at least 8 GB RAM and a reliable internet connection

Bonus points

• Familiarity with Django, Flask, FastAPI or Express
• Contributions to an open source project, however small
• Exposure to Docker or a cloud platform such as AWS or GCP

What you'll learn

• Writing tests is part of the job here, and you will get good at it
• Weekly 1:1 with your mentor to go over what went well and what to work on next

Duration: 3 months

Start date: Jan 2027

Stipend: €3,100 - €3,300 per month

Perks

• Possibility of a full-time offer
• Company laptop
• Letter of recommendation
• Internet allowance
• Flexible hours

The posting will close once we have a strong shortlist.

Duration: 3 months. Start: Jan 2027.

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