About the role

As a software engineering intern at Semgrep, you'll help us build a new category of developer-focused security tools to prevent bugs and security vulnerabilities. You will be joining the team behind the widely used Semgrep. You will get to ship features that make it easier for teams to integrate Semgrep into their existing workflows or build improvements that help our services scale and remain reliable.

Along the way, you will work with a dedicated group of full-stack developers, security researchers, program analysis experts, and infrastructure engineers. You will learn from senior developers who bring experience and wisdom from Google, Facebook, and successful startups. You will work with our clients' security teams at companies ranging from early-stage startups to social-media giants. You will have opportunities to learn about their individual security philosophies and develop ways to make their lives easier. You'll attend lunch and learn sessions across the company - learning about everything from advanced type systems to product paradigms. As a member of our engineering team, you will get to speak directly with real customers who are using the features you build - something that makes interning at an early-stage startup so unique! We're excited to go on this journey with you!

Perhaps the best description of this internship comes from someone who has been where you will be.

• Tanisha Kholiya experience as a 2026 intern
• Solomon Graf experience as a 2026 intern

You will

• Design and ship new features in a full-stack codebase using Python, PostgreSQL, Typescript, and React
• Work with our users, product team, and design team to address user pain points
• Query our aggregated metrics and run experiments to help understand and improve core Semgrep workflows
• Collaborate with your team through code reviews, design discussions, and demos
• Learn from a peer mentor whose job is to help you succeed, and to help you get what you want out of your internship
• Present your work to the team at the end of your internship

You are ideal for this role if you

• Have taken multiple college courses in computer science or equivalent experience
• Are interested in making a career out of software or a related field
• Have experience in a dynamic language like Python, Ruby, Javascript, or PHP
• Are excited about software security and developer enablement
• Are able to work in our San Francisco office 5 days/week.
• Are you able to start on either Monday, May 24th, 2027 or Monday, June 14th, 2027

Example projects previous interns have worked on:

• Re-design and implement a frontend web page to be more intuitive and functional
• Build a Slack App integration for Semgrep-app with an authentication handshake
• Build seamless VSCode and IntelliJ Semgrep integrations
• Implement SSO authentication only onboarding
• Build a triage workflow using PR comments

What we offer

• $2,400 per week for our 11-week full-time internship
• Close 1:1 mentorship from full-time engineers on the team
• Regular feedback from your team's manager
• The opportunity to work in-person in our San Francisco office
• An intern cohort of peers