> Markdown version of [/jobs/ext/4625689-principal-software-security-engineer](https://www.wearedevelopers.com/jobs/ext/4625689-principal-software-security-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Principal Software Security Engineer

- **Company:** Anthropic Limited
- **Location:** New York, NY, United States
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), Artificial Intelligence, Cyber Security, Python (Programming Language), Machine Learning, Role-Based Access Control, Software Safety, Software Engineering, TypeScript, Rust (Programming Language), Software Security, Vulnerability Analysis
- **Published:** November 7, 2026
- **Apply:** https://www.juju.com/job/28_25304_506ece6495dc0ff37e36513e7509506c

## About the Role

* Have 15+ years of software development experience with a security focus.
 * Experience building and scaling a Security program. Proactively identifying and solving systemic and ambiguous security challenges.
 * Experience setting technical direction for ambiguous technical challenges in the Security space.
 * Experience mentoring Security engineers across a range of disciplines.
 * Have experience applying security best practices, like the principle of least privilege and defense-in-depth, to complex systems.
 * Are proficient in languages like Rust, Python, Javascript/Typescript.
 * Have a track record of launching successful security initiatives and working cross-functionally to enact such changes.
 * Are passionate about making AI systems more safe, interpretable, and aligned with human values.

Strong candidates may also:

 * Have experience supporting fast-paced startup engineering teams
 * Care about AI safety risk scenarios
 * Experience as a tech lead or manager

## Description

* Design and implement secure-by-default controls as they relate to our software supply chain, AI model training systems, and deployment environments.
 * Perform security architecture reviews, threat modeling, and vulnerability assessments to identify and remediate risks.
 * Support Anthropic's responsible disclosure and bug bounty programs and participate in the Security Engineering team's on-call rotation.
 * Accelerate the development of Anthropic's security engineers through mentorship and coaching, and contribute to company building activities like interviewing.
 * Help build greater security awareness across the organization and coach engineers on secure coding practices.
 * Lead and contribute towards large efforts such as building multi-party authorization for AI-critical infrastructure, helping to reduce sensitive production access, and securing build pipelines.