Base Salary
$150k - $215k/yr
Responsibilities
- Advise enterprise customers on agent architecture, evaluation strategy, and production best practices.
- Co-build agent systems with customer engineering teams across the full Agent Development Lifecycle.
- Embed within customer organizations as a deployed engineer and ship agent systems alongside their engineers.
- Design orchestration patterns, evaluations, custom conversational user interfaces, and production deployments.
- Apply post-training, supervised fine-tuning, harness engineering, trace mining, model selection, and evaluation methodologies.
Requirements
- 4+ years of software engineering experience with deep expertise in Python.
- 2+ years of hands-on experience building and shipping production agent systems.
- Strong client-facing communication skills and the ability to explain architectural decisions to technical stakeholders.
- Strong experience with LangChain, LangGraph, Deep Agents, or comparable frameworks, including multi-agent patterns and state management.
- Deep familiarity with designing and implementing evaluation methodologies for nondeterministic AI systems.
- Ability to work across advisory, co-building, and embedded delivery engagements.
- Preferred: experience with dataset curation and post-training techniques such as SFT, DPO, and RLHF on open-weight models.
- Preferred: experience with Axolotl, Unsloth, Hugging Face Transformers, TRL, and trace mining.
Benefits
- Medical, dental, and vision coverage.
- Flexible vacation.
- 401(k) plan.
- Meals on in-office days in the US.
- Meaningful equity and other benefits and perks.
- Location: San Francisco, California.
Tech Stack
Categories
About LangChain
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. What began as widely adopted open-source tools has grown into a platform for building, evaluating, deploying, and operating agents at scale. LangChain provides the agent engineering platform and open source frameworks developers need to ship reliable agents fast. LangSmith offers observability, evaluation, and deployment for rapid iteration. Our open source frameworks, LangGraph, LangChain, and Deep Agents, help developers build agents with speed and granular control. LangSmith is trusted by leading AI teams at Zip, Vanta, Klarna, Workday, Linkedin, Cloudflare, and more.