Skills & Technologies
Requirements
- Experience
- 3+ years
Benefits
Joblaze summary
In this role, the JavaScript Engineer will focus on enhancing the LangChain and LangGraph packages, ensuring they meet the needs of developers building AI agents. Key skills include a solid background in software engineering and effective communication to engage with both technical and non-technical users. This position is ideal for someone with over three years of experience who thrives in dynamic environments and is eager to take ownership of their work. The Open Source team is integral to LangChain's mission, collaborating closely with the developer community to drive innovation.
Joblaze insights
- Listed about a month ago on Joblaze — tracked directly from LangChain's career page.
- LangChain has 101 other open roles including Enterprise Account Executive (Minneapolis), Web Lead, Commercial Sales Director - East.
- 500 active JavaScript roles on Joblaze right now.
- 77 active LangChain roles on Joblaze right now.
- 41 active LangGraph roles on Joblaze right now.
- Salary band is below the typical range for AI/ML (median ~$190,000).
Quick facts
- Is the JavaScript Engineer (Open Source Team) role remote?
- It's hybrid — LangChain expects some on-site time in San Francisco, CA.
- What's the salary range?
- LangChain lists $150,000–$225,000 for this role.
- How much experience is required?
- At least 3 years of relevant experience for this JavaScript Engineer (Open Source Team) role.
- Where is the role based?
- LangChain is hiring for this position in San Francisco, CA.
- What's the tech stack?
- Joblaze extracted these technologies from the posting: JavaScript, LangGraph, LangChain.
- What seniority level is this role?
- LangChain targets mid-level candidates for this position.
- Is this full-time or contract?
- Full-time for this JavaScript Engineer (Open Source Team) role at LangChain.
From the original posting
About Us
At LangChain, our mission is to make intelligent agents ubiquitous. We build the foundation for agent engineering in the real world, helping developers move from prototypes to production-ready AI agents that teams can rely on. We began as widely adopted open-source tools and have grown to also offer a platform for building, evaluating, deploying, and operating agents at scale.
With $125M raised at Series B from IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we’re at a stage where we’re continuing to develop new products, growth is accelerating, and all team members have meaningful impact on what we build and how we work together. LangChain is a place where your contributions can shape how this technology shows up in the real world.
Today, our platform includes LangSmith (Observability, Evaluation, Deployment, Fleet, and Sandboxes), our open source frameworks (LangChain, LangGraph, and Deep Agents), and the newly launched LangSmith Engine for autonomous agent improvement. We have 100M+ monthly open source downloads, 6,000+ active LangSmith customers, and 5 of the Fortune 10 use LangSmith in production (+ 35% of the Fortune 500 overall), including teams at Klarna, Clay, Coinbase, Workday, Lyft, Cloudflare, Harvey, Rippling, Vanta, LinkedIn, Monday.com, Nvidia, and Bridgewater.
About the Team
The Open Source team builds and maintains the core libraries that developers use to build AI agents with LangChain. The team works directly with the open-source community to improve the ecosystem, maintain core packages, and ensure developers can reliably build and deploy production AI systems using LangChain.
About the Role
We’re looking to add a core maintainer to the LangChain team. This person would be responsible for maintaining and improving the LangChain JavaScript package. In-person in SF preferred.
What You'll Do
Improve the core abstractions and runtime of the LangChain and LangGraph JavaScript packages
Improve documentation across the LangChain ecosystem
Answer user questions and resolve issues from the developer community
Use LangChain to build example applications that demonstrate best practices for developers building AI systems
What You'll Bring
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-minded approach to work, with the ability to manage your work efficiently and effectively without the need for close supervision
Compensation
Annual salary range: $160,000- $240,000
Compensation Philosophy:
We offer competitive compensation that includes base salary, variable compensation for relevant roles, meaningful equity, benefits, and perks. Actual compensation and offerings will vary based on role, level, and location. Team members in the EU, UK, and APAC receive locally competitive benefits aligned with regional norms and regulations.
Benefits
Benefits include medical, dental, and vision coverage, flexible vacation, a 401(k) plan, meals on in-office days in the US and more.