Startup Interns: How to Run a Summer Internship Program
A good summer intern can ship a real project, bring fresh energy to a small team and even become your next great hire. A poorly planned internship, on the other hand, leaves a student bored and a founder stretched even thinner. The difference is almost always preparation. Here is how to run a summer internship program at your startup that works for everyone involved.
Key takeaways
- Give each intern one meaningful project with a clear finish line, not a pile of leftover tasks.
- Pay interns fairly; rules on unpaid internships are strict in many places, so check the official guidance where you operate.
- Assign every intern a named mentor and set a weekly one-to-one from day one.
- Follow a simple week-by-week plan and finish with a demo day where interns present their work.
- Collect feedback at the end and keep in touch with the best interns for future roles.
By the middle of June, summer internships are in full swing. Some startups have interns already settling in, while others are realizing they could use an extra pair of hands for July and August. Either way, it is a good moment to look at how your program is structured. If your interns have already started, you can use this guide to tighten up the remaining weeks. If you are planning ahead for next summer, you can use it to design something great from scratch.
A quick note before we begin: rules on pay, working hours, young workers and right to work vary by country and state. This article is general information, not legal or employment advice, so check official government guidance and speak with an employment adviser before you bring interns on board.
Decide why you want interns
Start with an honest answer to one question: what do you want from this program? Your answer shapes everything else, from the projects you choose to the people you hire.
- A specific project. You have a well-defined piece of work, such as a customer research study, a set of help articles or an internal tool, that nobody has time for.
- A talent pipeline. You want to meet promising early-career people and potentially hire them after they graduate.
- Fresh perspective. You want people closer to your target users, or with skills your team lacks, to challenge your assumptions.
- Giving back. You want to help students learn how startups really work.
Most programs combine more than one of these goals, and that is fine. What matters is that you are clear about the main one. If you mainly want a talent pipeline, for example, you will invest more in mentoring and culture. If you mainly want a project done, you will invest more in scoping and support.
Common mistake
Hiring interns because "it would be nice to have some help" without a defined project. Interns without clear work quickly end up on low-value tasks, and they notice. They will also tell their friends, which affects your reputation with future candidates.
Get the basics right: pay, rules and paperwork
Before you post a role, sort out the practical and legal basics. These are the areas small companies most often overlook.
Pay
Paying interns is the fairest approach and, in many cases, the legally safer one. In the US, federal and state rules limit when an internship can be unpaid, especially at for-profit companies. In the UK, interns who count as workers are generally entitled to the minimum wage. EU countries have their own rules. Because these tests are detailed and change over time, check the current official guidance where you operate rather than assuming an unpaid placement is allowed. Paying also widens your talent pool, since many talented students simply cannot afford to work for free.
Contracts and right to work
Give every intern a written agreement covering dates, hours, pay, confidentiality and who owns the work they produce. Check right-to-work requirements, and be careful with international students, whose visas may limit the work they can do. If you take on interns under 18, extra rules on hours and safety usually apply.
Equipment, access and safety
Decide what interns will need: a laptop, accounts for your tools, building access and a place to sit if you have an office. Give them only the system access their project needs, and remove it on their last day. Include interns in your usual health and safety induction too.
Pro tip
Make a simple "intern setup" checklist with every account, device and document an intern needs, and who sets it up. Run through it the week before they start. Few things deflate a new intern faster than spending their first two days waiting for a login.
Design projects interns can actually finish
The best internship projects are real, contained and visible. They matter to the business, they fit within the summer and they produce something the intern can point to at the end.
- List candidate projects. Ask your team what they would tackle if they had an extra person for ten weeks.
- Check the scope. A good project could be finished by a capable beginner in roughly two-thirds of the internship, leaving time for learning and polish.
- Define "done." Write down exactly what a finished project looks like, such as "a research report with interviews from 12 customers and five recommendations."
- Remove blockers in advance. Make sure data, access and decision-makers will be available when needed.
- Pick a mentor. Every project needs one person who knows the work and has time to help, ideally a few hours a week.
- Add a stretch goal. Give strong interns an optional extension if they finish early.
Good examples for a startup include analyzing customer churn reasons, building a small internal dashboard, writing and testing onboarding emails, creating a library of help articles, researching a new market or improving a part of the product with a clear user benefit.
A 10-week summer internship plan
A simple week-by-week plan keeps everyone on track. Adjust the length to fit your program, but keep the same shape: a strong start, a long build phase and a clear finish. Copy the template below; the activities are examples for a ten-week project.
| Week | Focus | Intern goals (example) | Mentor actions (example) |
|---|---|---|---|
| Week 1 | Welcome and context | Meet the team, learn the product, read key documents, agree on the project brief | Daily check-ins, explain how decisions are made, share the definition of done |
| Weeks 2 to 4 | Research and first draft | Gather information, talk to users or teammates, produce a first rough version | Weekly one-to-one, review early work quickly, unblock access |
| Weeks 5 to 8 | Build and improve | Turn the draft into a finished piece of work, test it, ask for feedback | Midpoint review in week 5, connect the intern with other teams |
| Weeks 9 to 10 | Finish and present | Polish, document the work, present at demo day | Give written feedback, plan handover, discuss future options |
Keep this plan visible, for example in a shared document, and update it at the weekly one-to-one. If a project changes direction, change the plan too, so the intern always knows what success looks like.
Mentoring and everyday support
Interns usually learn the most from the person they work with every day. Mentoring does not need to be formal, but it does need to be consistent.
- Weekly one-to-ones. Thirty minutes to review progress, answer questions and talk about what the intern is learning.
- Quick daily contact. A short message or stand-up so small problems do not grow.
- A buddy outside the project. Someone from another part of the team the intern can ask "silly" questions.
- Learning sessions. Short talks from founders or team members about how the company works, from sales to fundraising to product decisions.
- Inclusion in team life. Invite interns to team meetings, socials and lunches. Feeling like part of the team makes a big difference to motivation.
Remember that many interns are early in their careers. Explain things that seem obvious to you, like how to write a clear update or when it is fine to interrupt someone. Small pieces of guidance like this are often the most valuable thing they take away.
Hypothetical example
Imagine Priya, co-founder of a small fitness booking app, hiring two paid summer interns. One works on interviewing gym owners about why they stop using the app; the other writes and tests a set of help articles. Each intern has a mentor, a written project brief and a ten-week plan. In week 5, the research intern finds that many gyms struggle with one confusing setup screen, and the team fixes it before the summer ends. At demo day, both interns present to the whole company. Priya stays in touch with them through the autumn and later offers one a graduate role.
End with a demo day and a proper goodbye
How an internship ends shapes how interns remember it, and what they tell other students about you. Plan the finish as carefully as the start.
- Demo day. Give each intern 10 to 15 minutes to present what they did, what they learned and what they recommend. Invite the whole team and celebrate the work.
- Handover. Make sure the work is documented and someone owns it after the intern leaves, so it does not sit unused.
- Written feedback. Share honest, specific feedback on strengths and areas to grow. Offer to act as a reference where appropriate.
- Ask for their feedback. A short survey or conversation about what worked and what did not will improve next year's program.
- Stay in touch. Add great interns to a "future hires" list and check in a few times a year.
Pro tip
Write a short "program review" within a week of the internship ending, while it is fresh. Note what you would keep, what you would change and which projects you might offer next summer. Your future self will thank you when planning starts again.
Your internship program checklist
- Decide the main goal of your internship program
- Check current rules on pay, hours, young workers and right to work
- Prepare a written agreement covering pay, dates, confidentiality and ownership of work
- Choose one real, contained project per intern with a clear definition of done
- Assign a mentor and a buddy for each intern
- Prepare equipment, accounts and access before day one
- Share a 10-week plan and hold weekly one-to-ones
- Run a midpoint review and adjust the plan if needed
- Hold a demo day, give written feedback and document the handover
- Collect intern feedback and keep in touch with strong interns
Frequently asked questions
Can a startup offer unpaid internships?
It depends on where you operate and how the internship is set up, and the rules are often strict for for-profit companies. Many startups avoid the question entirely by paying interns. Check the current official guidance in your country or state and ask an employment adviser if you are unsure.
How many interns should a small startup take on?
Usually no more than you have mentors for. A good rule is one intern per available mentor with real time to give. For a very small team, one or two interns is often plenty.
How long should a summer internship last?
Many summer internships run for around eight to twelve weeks, fitting around university holidays. Shorter placements can work for a narrow project, but give enough time for the intern to settle in and finish something meaningful.
Can interns work remotely?
Yes, but remote interns need even more structure: clear daily check-ins, written project briefs and regular video calls. Plan a few in-person days if you can, especially at the start and for demo day.
Related reading
The bottom line
A summer internship program works when you treat it like any important project: a clear goal, fair pay, real work with a defined finish, a named mentor and a plan for every week. Add a strong start, a proper demo day and honest feedback, and both your startup and your interns will get real value from the summer.
Whether your interns are already here or you are planning for next year, pick one improvement from this guide and put it in place this week. A little structure turns a busy summer into one your interns will talk about for years.
