Senior Security Engineer

LangChain is at the forefront of making intelligent agents ubiquitous, helping developers build mission-critical AI applications. Their open source frameworks - LangChain and LangGraph - are trusted by over 70+ million monthly downloads, serving top engineering teams at companies like Replit, Lovable, Clay, Klarna, and LinkedIn.

As the Senior Security Engineer, you'll take on the crucial role of being the hands-on security lead embedded within core product teams. Your mission will be to secure agentic workloads end-to-end, spanning from SDK through LangSmith/Graph services and customer integrations. This role combines deep technical expertise in security engineering with practical software development skills.

The position demands strong experience in cloud and Kubernetes security, with a focus on implementing robust security measures across the entire stack. You'll be responsible for designing and implementing authentication and authorization systems, managing vulnerability assessments, and ensuring the security of both cloud and self-hosted customer deployments.

Key responsibilities include owning product and platform security, implementing secure-by-default authentication and authorization, contributing to code reviews, managing infrastructure security, and leading incident response efforts. The role requires a minimum of 5 years of security engineering experience, with strong software development skills in Python or Go (TypeScript is a plus).

The position offers competitive compensation ($175,000-$215,000 USD) and equity, reflecting the critical nature of security in AI infrastructure. This is an in-person role based in either San Francisco, CA or New York, NY, requiring 5 days per week office presence.

Working at LangChain means being at the cutting edge of AI infrastructure security, helping shape how the industry approaches security in AI applications. You'll have the opportunity to work with modern technologies and frameworks while implementing security measures that protect critical AI infrastructure used by major technology companies.