Software Engineer Intern

About Quarryfield IT

Based in Cologne, Quarryfield IT also runs a small colocation rack for clients who want local backups. From the Cologne office, we cover clients within about a two-hour drive and support remote sites through RMM tools.

The internship

The intern will work on internal tools and APIs used by our support and operations staff. Daily standup on Google Meet, everything else async on Slack. The company is based in Cologne, Germany. The team is distributed across several countries. The internship is fully remote. Interns join our Cologne team on daily calls and get a named mentor. Working hours overlap with Central European Time. Day-to-day communication is in Slack and Google Meet.

What you'll do

• Refactor old modules when asked, keeping behaviour the same
• Pair with other engineers over screen share to work through tricky problems
• Query and update data in PostgreSQL or MySQL, including simple migrations
• Present a short demo of your work to the team every two weeks
• Write and test backend features in Python or Node.js under the guidance of a senior developer
• Profile slow endpoints and suggest fixes, such as adding an index or caching a result
• Raise pull requests on GitHub and respond to code review comments within a day

Who can apply

• Based in the US for the duration of the internship
• Available 40 hours a week for the full internship
• Currently enrolled in a bachelor's or master's program, graduating 2027 or 2028
• Good grasp of at least one programming language: Python, Java, JavaScript or C++
• Must be able to overlap at least 4 hours a day with the team's working hours
• Available for 30 to 40 hours a week for the full internship period
• Some experience with Git, even if only on college or personal projects

Bonus points

• Contributions to an open source project, however small
• Any previous internship, hackathon or freelance coding work

What you get out of it

• Writing tests is part of the job here, and you will get good at it
• How a production codebase is organised, deployed and monitored

Duration: 10-12 weeks

Start date: Summer 2027

Stipend: $40.50 - $53.50 per hour

Perks

• Paid company holidays
• Return offer opportunities
• Flexible hours
• Mentorship from a dedicated buddy and manager
• Home office setup stipend

Duration: 10-12 weeks. Start: Summer 2027.

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