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SWE internships in 2026
Most software engineering internships run 10 to 12 weeks during the summer, though some companies offer fall and winter terms too. You'll typically work on a real codebase alongside a team, with a mentor assigned to guide you. You'll see these listed as Software Engineering Intern, Backend Intern, Frontend Intern, or Full-Stack Intern. Companies like Google, Amazon, Microsoft, Stripe, and hundreds of startups post these roles on Greenhouse, Lever, and Workday.
How to stand out as an SWE intern candidate
Nail the fundamentals: data structures, algorithms, and at least one language you're comfortable whiteboarding in. Side projects and open-source contributions help, especially if you can talk through design decisions in an interview. Apply early. Many top companies fill their intern classes by December for the following summer.
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