JavaScript Engineer; Source Team

About the Role

We’re looking to add a core maintainer to the Lang Chain team. This person would be responsible for maintaining and improving the Lang Chain JavaScript package. In-person in SF preferred.

• Improve the core abstractions and runtime of the Lang Chain and Lang Graph JavaScript packages
• Improve documentation across the Lang Chain ecosystem
• Answer user questions and resolve issues from the developer community
• Use Lang Chain to build example applications that demonstrate best practices for developers building AI systems

• 3+ years of software engineering or applied machine learning experience
• A background in software engineering
• Strong written and oral communication skills, with the ability to explain technical concepts clearly and concisely to both technical and non-technical stakeholders
• The ability to thrive in a fast‑moving environment and view unstructured environments as an opportunity to identify the most impactful work and help define the future success of the company
• An ownership‑mindful approach to work, with the ability to manage your work efficiently and effectively without the need for close supervision

• We offer competitive compensation that includes base salary, meaningful equity, and benefits such as health and dental coverage, flexible vacation, a 401(k) plan, and life insurance. Actual compensation will vary based on role, level, and location. For team members in the EU and UK, we provide locally competitive benefits aligned with regional norms and regulations.

Annual salary range: $150,000- $225,000