Software Engineering Intern

Harborlane Labs employs 440 people across engineering hubs in London and three other locations, building ERP software for mid-market manufacturers.

About the role

Our Platform team is five engineers working fully remote across two time zones. The intern picks up small backend tickets first and moves to bigger features once comfortable. Remote, open to candidates across the UK. Most of our work is async, and meetings are kept short. You get a company laptop and a headset before you start.

What you'll do

• Add unit tests with pytest or Jest so new code does not lower coverage.
• Refactor old modules when asked, keeping behaviour the same.
• Debug failing builds in the GitHub Actions pipeline and note what caused them.
• Pair with other engineers over screen share to work through tricky problems.
• Raise pull requests on GitHub and respond to code review comments within a day.
• Profile slow endpoints and suggest fixes, such as adding an index or caching a result.

Requirements

• Eligible to work in the UK.
• Available for the full internship period.
• Currently enrolled in a bachelor's or master's degree, graduating between December 2027 and June 2028.
• Based in the UK for the duration of the internship.
• Able to communicate clearly in written English on Slack and in pull requests.
• Some experience with Git, even if only on college or personal projects.
• Basic understanding of data structures, OOP and how HTTP requests work.

What you get out of it

• Code review on every pull request, so expect a lot of feedback on naming, tests and structure.
• Certificate and letter of recommendation on completion, plus a pre-placement offer for strong performers.

Duration: 4 months

Start date: Mar 2027

Stipend: £26,000 - £32,000 per annum

What we offer

• Reference on completion.
• Graduate scheme fast-track interview.
• Flexible working hours.
• Laptop provided.
• Mentoring from an experienced team member.
• Paid holiday accrued during the placement.

We may close the vacancy early if we receive a high number of applications.

Duration: 4 months. Start: Mar 2027.

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