Senior Full Stack Software Engineer
Semgrep, San Francisco Office +3
- Pay
- $163K–$247K / year
- Work type
- Hybrid
- Level
- Senior
- Area
- Software engineering
- Posted
- Feb 2, 2026
About the role
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 http://semgrep.dev.
ABOUT THE ROLE
As a Fullstack Engineer, you’ll work across the stack to design, build and maintain a fast and reliable user experience for our customers. You’ll collaborate closely with designers and product managers to develop flows that help AppSec professionals and developers alike to achieve their security goals, own the end-to-end implementation of features in our frontend and backend and scale these systems as we continue to grow rapidly this year.
Our stack utilizes Typescript and React on the Frontend, Python, Flask and SQLAlchemy on the Backend, is deployed via Kubernetes and hosted on AWS. Professional experience with these technologies is preferred but not required provided you are open to learning them quickly!
This is a hybrid role with the expectation you’ll join us 3+ days per week in our San Francisco, New York, Boston or Denver offices depending on team. Remote employment will be considered for exceptional candidates as well.
COMPENSATION
The estimated starting annual salary range for this position is $163,000 to $246,500 USD.. The actual base salary will be determined based on a number of factors, which may include job-related skills, relevant experience, qualifications, location, internal equity, and market data. In addition to base salary, total compensation may include equity, variable compensation, and benefits. We view equity as a meaningful part of our compensation philosophy and a way for employees to share in the long-term value they help create.
Compensation ranges are reviewed regularly and may be adjusted as the role, individual performance, or market conditions evolve.
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.
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Listed on Semgrep's Ashby job board; checked 19 h ago. First seen by us 20 h ago. Being listed doesn't mean the team is actively interviewing. We found this board in a public directory and haven't yet confirmed it against the company's own careers page.