Quantitative Engineering Intern (AI)

Location: Foster City, CA (Hybrid)

Company

Replit is an agentic software creation platform that enables anyone to build applications using natural language, democratizing software development for millions of users worldwide.

What you will do

• Contribute to real engineering problems that push the boundaries of AI-powered software creation.
• Collaborate with engineers, designers, and product managers on infrastructure powering the platform.
• Prototype novel approaches to problems in AI, systems, or tooling where mathematical rigor is the differentiator.
• Ship work that impacts millions of developers globally in an environment where ideas are heard and implemented.

Requirements

• 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), quantitative research, or advanced coursework.
• Genuine curiosity about AI, agent systems, company building, or developer tooling.
• Extremely bullish on Replit and the future of AI-native software creation.

Culture & Benefits

• Competitive salary and equity.
• 401(k) program with a 4% match (US Only).
• Comprehensive health, dental, vision, and life insurance.
• Flexible Time Off (FTO) and paid holidays.
• Monthly wellness stipend and quarterly team gatherings.
• Commuter benefits and in-office setup reimbursement (In-Office Only).