Frontier AI Engineer: Build Production-Ready Agents

ATOM; San Francisco (CA); On-site; USD 300,000 - 400,000; Full time

Benefits offered by this job

Medical coverage

Flexible PTO

Wellness reimbursement

Monthly lunch stipend

Donation matching

In‑office collaboration

Job summary

Postman, the world’s leading API platform, is seeking Frontier AI Engineers to design, build, and deploy real AI and agentic systems in production. You will work directly with ambitious customers to create tool‑enabled agents, RAG pipelines, and end‑to‑end AI workflows across the stack.

This hands‑on role requires deep systems thinking, collaboration with AI and platform teams, and a focus on secure, observable, and scalable AI solutions.

Responsibilities

• Build real AI systems with LLMs, agents, MCP, APIs, tool calling, RAG, vector search, structured outputs, multimodal models, and production AI workflows.
• Design agentic systems that can reason across tools, APIs, enterprise data, and workflows while maintaining proper identity, permissions, policy, and execution controls.
• Work across the model layer, experimenting with foundation models, model routing, inference, prompt engineering, and the tradeoffs between quality, latency, cost, and reliability.
• Make AI measurable by building evaluation systems for agents and LLM applications, including task success, tool correctness, hallucination detection, regression testing, safety, latency, and cost.
• Make AI production ready by building observability, tracing, guardrails, fallback strategies, rate limits, retries, caching, and the infrastructure to operate AI systems at scale.
• Solve the context problem by helping customers reason about retrieval, memory, grounding, context windows, embeddings, vector databases, and enterprise data.
• Secure agent actions with authentication, authorization, secrets management, API access, policy enforcement, auditability, and controls when AI systems can take actions.
• Own problems end to end from architecture to prototype to evaluation to production, staying close to the code and shipping.

Job description

Postman, the world’s leading API platform, is seeking Frontier AI Engineers to design, build, and deploy real AI and agentic systems in production. You will work directly with ambitious customers to create tool‑enabled agents, RAG pipelines, and end‑to‑end AI workflows across the stack.

This hands‑on role requires deep systems thinking, collaboration with AI and platform teams, and a focus on secure, observable, and scalable AI solutions.