About LangChain
At LangChain, our mission is to make intelligent agents ubiquitous. We help developers build mission-critical AI applications across the entire agent development lifecycle. Our open source frameworks — LangChain and LangGraph — see over 70+ million downloads per month. Developers rely on LangChain for composable integrations and LangGraph for controllable agent orchestration. Our commercial agent platform, consisting of LangSmith and LangGraph Platform, enables teams to build, test, run, and manage agents at scale across their organization.
Founded in 2023, LangChain powers top engineering teams at companies like Replit, Lovable, Clay, Klarna, LinkedIn, and more.
About the role:
LangChain is hiring a Backend Engineer to build the foundational product features and integrations that power user acquisition, rapid experimentation, and self-serve expansion. This is a high-impact 0→1 role on a newly formed team responsible for building growth systems from the ground up. You’ll work closely with product, design, GTM, and analytics to streamline activation, optimize packaging, and deliver a seamless growth story for developers and enterprise customers alike. This role will be in person 5 days/week in New York City, San Francisco, or Boston.
What you will do:
Design and build backend services and APIs in Go and Python to power growth features across the user funnel
Develop scalable experimentation systems and backend processes capable of targeting diverse growth metrics
Implement data pipelines, usage metering, and pricing/packaging logic for rapid iteration
Optimize backend systems for performance, reliability, and maintainability under high-volume workloads
Build and evolve growth levers including usage-based guardrails, smart upgrade triggers, and contextual system-driven CTAs
Collaborate closely with product, design, GTM, and analytics teams to identify, prioritize, and execute high-impact growth opportunities
How to be successful in this role:
Strong backend development experience using Go and/or Python
Deep familiarity with designing APIs, data models, and scalable backend architectures
Experience with usage metering, subscriptions, pricing systems, or internal tooling for growth experiments
Comfort working with Postgres, Redis, and modern backend infrastructure/cloud services
Product intuition and a track record of working on monetization, activation, or developer-facing features
Startup DNA with the ability to thrive in fast-paced, zero-to-one environments
Self-directed with an ownership mindset
Bonus: Experience building for developers or product-led growth platforms
Bonus: Familiarity with LLMs, GenAI applications, or agentic frameworks
Compensation & Benefits
Competitive salary and equity stake for role and stage of company. Commensurate with experience.
Annual salary range: $165,000-$195,000 USD for Senior Engineers
Top Skills
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