# Senior AI Software Engineer

**Company:** [Semgrep](https://hotfix.jobs/companies/semgrep)
**Location:** San Francisco, CA, Boston, MA, Denver, CO, New York, NY
**Role:** ML Engineering
**Salary:** $163k – $247k/yr
**Skills:** LLMs, Gpt-4, Codex, Claude, TypeScript, React, Python, Flask, Sqlalchemy, Kubernetes, AWS
**Posted:** 2026-02-02

> Develops AI-powered solutions using LLMs to improve code security vulnerability detection, prioritization, and remediation. Collaborates with customers, implements end-to-end features, and evaluates models through experimentation on real-world data.

## Job Description

## Responsibilities
- Apply LLM technologies throughout the stack to enhance Semgrep’s security vulnerability detection, prioritization, and remediation capabilities.
- Work directly with customers to understand their pain points.
- Own the end-to-end implementation of AI-powered solutions.
- Rigorously evaluate the efficacy of different prompts and models through experimentation with real-world data.
- Prototype and ship quickly, working on a little bit of everything throughout the stack.

## Requirements
- Comfortable working with significant ambiguity.
- Professional experience with LLMs including GPT-4/GPT-5, Codex, and Claude (preferred but not required; open to learning quickly).
- Experience with Typescript and React (Frontend), Python, Flask, SQLAlchemy (Backend), Kubernetes, AWS (preferred but not required).

## Compensation
- Estimated starting annual salary range: $163,000 to $246,500 USD.
- Total compensation may include equity, variable compensation, and benefits.

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