Principal Engineer, Agentic AI Systems
Inflection · Palo Alto, California, United States
CHECKED 4H AGO
Frontier labonsiteprincipal$400k–$550k
At a glance
Highlights
- Lead architecture for production AI agents that reason and execute workflows.
- Build evaluation and observability systems for multi-step agent reliability.
- Turn ambiguous user problems into shipped AI-native experiences.
What they offer
- Meaningful equity component
- Robust medical, dental and vision options with employer HSA, FSA and DFSA contributions
- 401k matching program
- Flexible Time Off, 10 paid holidays and 5 days sick leave
- Parental, Medical and Family care leave
- Cell-phone, wellness and office setup stipends
Ideal candidate
A hands-on technical leader who loves turning ambiguity into shipped AI products, combining strong product judgment with ownership and collaboration to mentor others and raise the bar for reliable agents.
Requirements
- 10+ years of engineering experience, including 3+ years at staff/principal scope
- 2+ years building production-grade agentic or LLM-powered systems used by real customers
- Strong Python or TypeScript experience
- Experience building LLM-powered products, AI agents, RAG systems or model-integrated applications
- Strong backend fundamentals including APIs, databases, queues, testing and cloud infrastructure
- Experience with tool/function calling, structured outputs, retrieval and model evaluation
- Strong product judgment with ability to move from ambiguous problem to shipped product
- Bachelor's degree or equivalent in related field
- visa sponsorship
- Support of country-specific visa needs for international employees living in the Bay Area
Lab profile
About Inflection
Builds human-centered, emotionally intelligent AI combining EQ and IQ via Pi.
What they build
- Pi
- Inflection foundation model
Known for
- Emotionally intelligent AI
- Human-centered AI
- Agentic AI systems
- Realtime voice AI