Short answer: Not for every role. By April most large, structured programs have finished hiring, and NASA's Summer 2027 deadline (March 1, 2027) has passed. Smaller companies, startups, nonprofits and local employers still hire close to summer, and NASA's fall 2027 deadline is May 24, 2027.
What is usually still open in April
| Kind of employer | In April |
|---|---|
| Investment banks, consulting firms, big tech | Mostly closed; a few late or extra roles |
| Accounting, marketing, operations, healthcare | Some still hiring |
| Smaller companies, startups, nonprofits | Still hiring, often close to the start date |
| NASA OSTEM | Summer closed; fall 2027 open until May 24, 2027 |
The first three rows follow the hiring calendar Useno tracked for Summer 2027 on its recruiting timeline. Each employer sets its own dates, so read the deadline on every role.
How to use the time well
- Apply to new roles within a few days of posting. Many employers review applications as they arrive.
- Widen the search: local employers, research with a professor, and campus jobs count on a resume too.
- Write to people as well as applying. The cold email guide has templates.
- Have a plan B for summer: a part-time job, a class, or a project you can point to.
Where to look on Useno
The newest internships page lists roles newest day first. On November 9, 2026, Useno listed 6,910 Summer 2027 roles across the board, including 235 accounting internships and 293 marketing and sales internships.
How fast internships get posted
Last season, 11.0% of these roles were still posted after April 30. In the SimplifyJobs public list, which leans toward software, data and quant roles, here is the share of last season's 15,207 US internships that had been posted by each date:
| By | Share of Summer 2026 roles posted |
|---|---|
| Sept 30, 2025 | 24.7% |
| Oct 31 | 35.5% |
| Dec 31 | 48.0% |
| Jan 31, 2026 | 55.1% |
| Feb 28 | 68.0% |
| Mar 31 | 80.7% |
| Apr 30 | 89.0% |
This guide was last updated on November 9, 2026. The counts above are from that day and will be refreshed in April.
Sources
Employer dates come from each employer's own pages where they publish them. A date that only a third party reports is marked Third party. Useno counts are Useno's own data, read on November 9, 2026.
- OfficialNASA internship programsnasa.gov
- Third partySimplifyJobs public internship list (GitHub)github.com
- Useno dataUseno internship index, read November 9, 2026useno.app