About Warmly
Warmly is a fast-growing Series A company backed by Y-Combinator, Felicis, and Sequoia, with a high-velocity, transparent, and data-driven work culture. Our AI sales platform saves hundreds of hours/week for sales teams while helping our customers achieve their mission faster. We are scaling from $3M to $10M in ARR and 250 to 500 customers in advance of a Series B. We foster a work environment where ideas are encouraged, experiments thrive, and individuals take ownership to drive impact.
We are looking for a Staff AI Engineer to lead the architectural evolution of our Inbound, Outbound, and Signal Agents. You will be responsible for turning raw intent signals into high-conversion pipeline through LLM-driven reasoning, advanced identity resolution, and seamless workflow automation.
What You’ll Build
Autonomous Inbound Agents: Lead the development of AI agents that don't just "chat," but identify, qualify, and route leads using our proprietary Inbound Identity graph.
Signal Intelligence: Architect the data pipelines that ingest millions of signals to determine "Strategic/Executive Value" for our customers.
LLM Ops & Scalability: Build the infrastructure to move from "prompt engineering" to "agentic reasoning," ensuring our AI is reliable, cost-efficient, and fast enough for real-time web traffic.
Data Room Ready Engineering: Maintain rigorous documentation and clean architecture, ensuring our tech stack is a "plug-and-play" asset for our Series B due diligence.
Tech stack:
Backend: TypeScript, Node.js, GraphQL, tRPC
Infrastructure: PostgreSQL, Redis, Elasticsearch, Google Cloud Platform, Kubernetes, Docker
Third-party Integrations: Salesforce, Hubspot, Pipedrive, Outreach, Apollo, Slack
Experience with TypeScript
Experience with Node.js
Experience with React
Experience with PostgreSQL, Redis
Who You Are
The 10x Architect: You have a track record of taking AI products from 0 to 1 and then scaling them to 100. You understand that "Growth at all costs" is dead—you build for unit economic efficiency.
Technical Depth: Expert in Python, TypeScript, and the modern AI stack (LangChain/LlamaIndex, Vector DBs, OpenAI/Anthropic APIs).
Product-Minded: You don't just build features; you solve problems for our core personas—Marketing, Sales, and RevOps.
Lean & Mean Mindset: You are excited about the challenge of a high-performance, consolidated team and thrive in an environment where speed-to-market is the primary metric.
8+ years of experience
Why Warmly?
Proven PMF: Our top champions are already buying for Inbound Identity. You are joining a rocket ship that already has its trajectory set.
Series B Readiness: We are sharpening our tools and our team to dominate the market. You will have a seat at the table as we scale the engineering org.
Equity & Impact: High-leverage role with significant equity upside as we prepare for our next major milestone.
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