Software Engineering Intern

Everything runs on a single Rails app and one Postgres database, deployed on Heroku. On-call rotates weekly and pays a flat stipend whether or not the pager goes off.

About the role:

We need a student who can write clean code, test it and explain what it does. Prior internships are not required. Remote, open to candidates across France. Few meetings, lots of written updates. We use Slack, Notion and Google Meet. Cameras on for team calls.

Responsibilities:

• Refactor old modules when asked, keeping behaviour the same.
• Pair with other engineers over screen share to work through tricky problems.
• Profile slow endpoints and suggest fixes, such as adding an index or caching a result.
• Debug failing builds in the GitHub Actions pipeline and note what caused them.
• Raise pull requests on GitHub and respond to code review comments within a day.
• Update the README and internal Confluence pages when you change how something works.
• Present a short demo of your work to the team every two weeks.
• Join the daily 15-minute standup on Google Meet and post a short written update in Slack.

Requirements:

• Eligible to work in France.
• Available for the full internship period.
• Basic understanding of data structures, OOP and how HTTP requests work.
• 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.

Duration: 5 months

Start date: Dec 2026

Stipend: €1,550 to €1,750 monthly

What we offer:

• Flexible hours.
• Mentorship.
• Paid public holidays.
• Possibility of a full-time offer.
• Internet allowance.

Candidates must be eligible to work in.

Duration: 5 months. Start: Dec 2026.

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