Senior Backend Engineer (Agentic AI)

Location: Palo Alto, California, United States

Annual base salary: $350,000–$500,000, plus equity.

Company

Inflection AI is a Public Benefit Corporation building human-centered, emotionally intelligent AI products, including the Pi personal AI agent.

What you will do

• Design and build backend systems for production agentic workflows, including orchestration, memory, retrieval, and tool integrations.
• Operate high-availability inference and conversation pipelines while optimizing latency, cost, and quality.
• Build internal platform capabilities such as service templates, CI/CD, observability, evaluation harnesses, and rollout tooling.
• Partner with applied researchers and frontend engineers to design and iterate on user-facing AI features.
• Drive features from prototype to production and ensure reliability and performance at scale.

Requirements

• 10–15 years of backend engineering experience shipping production systems in cloud environments.
• Production experience building, shipping, and operating agentic AI systems with real user impact.
• Strong experience with Python, Postgres, Redis, and at least one major cloud platform: AWS, GCP, or Azure.
• Experience with containers, Kubernetes, and LLM application patterns including RAG, tool use, and evaluation loops.
• Ability to independently drive systems to production and operate them reliably.
• Bachelor’s degree or equivalent in a related field.

Nice to have

• Experience with LangGraph, LlamaIndex, OpenAI or Anthropic Agent SDKs, or equivalent orchestration systems.
• Experience with LangSmith, Braintrust, or similar evaluation tooling.
• Background in streaming, queueing, or vector data infrastructure at scale.
• Past on-call ownership of customer-facing services with strict SLOs.
• Contributions to open-source agent or LLM tooling.

Culture & Benefits

• Medical, dental, and vision coverage with employer contributions for HSA, FSA, and DFSA.
• 401(k) matching program.
• Flexible time off, 10 paid holidays, and 5 days of sick leave.
• Parental, medical, and family care leave.
• Cell-phone, wellness, and office setup stipends.
• Support for country-specific visa needs for international employees living in the Bay Area.