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Salary: USD 150,000 - 215,000 / annual
LangChain is seeking a Deployed Engineer for its Professional Services team to work directly with enterprise customers building production-ready AI agents. The role bridges LangChain's platform and customer engineering teams, translating enterprise workflows into concrete software specifications and guiding implementation.
Key responsibilities include:
- Advising on agent architecture design, evaluation strategies, and production best practices for enterprise customers
- Co-building with customer engineering teams across the full Agent Development Lifecycle (ADLC), including architecture design, orchestration patterns, evaluation frameworks, custom conversational UIs, and production deployment
- Serving as an embedded engineer within customer organizations for extended engagements, operating as a de facto team member to ship agent systems directly
- Applying deep AI expertise in post-training, supervised fine-tuning, harness engineering, trace mining, model selection, and evaluation methodology
Required qualifications:
- 4+ years of software engineering experience with deep Python expertise (TypeScript/JavaScript a plus)
- 2+ years of hands-on experience building and shipping production agent systems
- Strong client-facing communication skills with ability to articulate architectural decisions to technical stakeholders (engineers, architects, CTOs)
- Deep experience with LangChain, LangGraph, Deep Agents, or comparable frameworks, including multi-agent patterns and state management
- Strong familiarity designing and implementing evaluation methodologies for non-deterministic AI systems
- Comfort operating across advisory to embedded delivery models
Nice-to-have skills include exposure to dataset curation and post-training techniques (SFT, DPO, RLHF) using tools like Axolotl, Unsloth, or Hugging Face transformers, and experience with trace mining for continuous improvement loops.
LangChain is a Series B company ($125M raised from IVP, Sequoia, Benchmark, CapitalG, Sapphire Ventures) with 100M+ monthly open-source downloads and 6,000+ active LangSmith customers, including 5 of the Fortune 10 and 35% of the Fortune 500.
About LangChain
AI / Data / Infrastructure — developer platform and framework for building LLM applications and agents.
