AI Research & Engineering Internship

About the role

Join Replit’s AI Research and engineering teams for a paid internship that tackles hard problems at the intersection of deep mathematics and applied AI. You will work directly with top executives, engineers, designers, and finance professionals on AI‑native software creation.

Key responsibilities

• Contribute to real engineering problems that push the boundaries of AI‑powered software creation.
• Collaborate with engineers, designers, and product managers on infrastructure that powers Replit’s platform.
• Prototype novel approaches to AI, systems, or tooling where mathematical rigor is the differentiator.
• Ship work that impacts millions of developers globally.

Required profile

• Currently pursuing a Bachelor’s, Master’s or PhD in Mathematics, Computer Science, Computer Engineering, Statistics, Physics, or a related quantitative field.
• At least one semester of schooling remaining after the internship.
• Demonstrated excellence in competitive mathematics (e.g., IMO, IOI) or advanced quantitative coursework.
• Genuine curiosity about AI, agent systems, company building, or developer tooling.

What we offer

• Competitive salary and equity.
• 401(k) program with 4% match (US only).
• Health, dental, vision, and life insurance.
• Short‑term and long‑term disability coverage.
• Paid parental, medical, and caregiver leave.
• Flexible time off plus holidays.
• Commuter benefits (in‑office, US only).
• Monthly wellness stipend.
• Autonomous work environment and office setup reimbursement.
• Quarterly team gatherings and in‑office amenities.