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About Semgrep

Semgrep, the leader in code security for builders, empowers invention without friction. Teams catch, flag, and fix real issues before they ship, powered by security that learns as they build. Semgrep secures code as it’s written and provides guardrails that pave the road for developers to move fast and stay secure. Built for builders and trusted by security, Semgrep lives where developers work, delivering fixes without breaking flow, and giving security teams visibility, control, and confidence. Semgrep gets smarter as you build, with AI that learns your context to cut false positives and prioritize reachable vulnerabilities, validated by 95% of security reviewers across 6M+ findings. Semgrep makes zero false positives a reality with AppSec teams triaging 80% fewer false positives across Code and Supply Chain, dramatically shrinking the backlog.

Founded in San Francisco and backed by Menlo Ventures, Felicis Ventures, Lightspeed Venture Partners, Redpoint Ventures, and Sequoia Capital, Semgrep is recognized by Gartner in Application Security Testing and is trusted by leading organizations, including Vanta, Lyft, and Dropbox. Learn more at semgrep.dev.

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 Tuesday, May 25th, 2027 or Tuesday, June 8th, 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

What we offer (FTE only)

Our goal is to competitively and fairly compensate every Semgrep employee with a system that equally rewards those who are vocal and those who are less comfortable making demands during the final steps of the hiring process. To that end, we generate internal compensation bands that are used when discussing and negotiating salaries. We update these based on market data to make sure they’re above the average for comparable roles.

We invest in our employees’ well-being and long-term success through a competitive, market-aligned benefits program that meets or exceeds local market standards across all of the regions in which we hire. Benefits offerings vary by location to reflect local requirements and norms. For more detailed, location-specific information, please visit Semgrep Benefits.

Who we are

We bring together people from a wide range of backgrounds and disciplines—from physics and philosophy to formal methods research and full-fledged corporations. We’re new parents and new grads, dog lovers and dogfooders. We get together often to bike, bake, and meet up in parks. In our interactions, we believe respect and honesty go hand in hand, and prioritize both.

Semgrep is an equal-opportunity employer seeking a diverse range of backgrounds. We value who you are — including your cultural heritage, your socioeconomic status, your age, your race, your gender, your sexual orientation, your disabilities. We value what’s vitally important to you — your family, your religion, your politics. We value what you love in this world — your music, your weekend pursuits. We believe in welcoming varied professional backgrounds, educations, and interests. If you’re exceptional in your role, believe in Semgrep’s mission, and treat Semgrep’s values as your own, you belong here.

Please Note: For US-based roles open to remote work, we are currently able to hire employees in the following states only: Arizona, California, Colorado, Connecticut, District of Columbia, Florida, Georgia, Illinois, Maryland, Massachusetts, Michigan, Missouri, Nebraska, New Jersey, New York, North Carolina, Oregon, Tennessee, Texas, Virginia, Washington, and Wisconsin.

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