Staff Software Engineer — AI Agent Infra

Pinterest, Inc.; United States; Hybrid; USD 208,000 - 365,000; Full time

Job summary

Pinterest, Inc. is seeking a senior software engineer to architect, build and maintain durable execution platforms that support crash‑recoverable, stateful AI agent workflows.

You will design standardized Model Context Protocol (MCP) servers, SDKs and agent runtime interfaces for cross‑functional engineering adoption. This hybrid in‑office role requires 8+ years in distributed systems, hands‑on experience with LLM agent frameworks, and a proven ability to lead platform‑level decisions across

Qualifications

• 8+ years software engineering in distributed systems.
• Hands‑on experience with LLM agent frameworks and runtime internals.
• Ability to drive platform abstractions and cross‑functional alignment across infra, security and product teams.
• Experience with service identity and multi‑tenant security (mTLS, SPIFFE).

Responsibilities

• Architect, build and maintain durable execution platforms for crash‑recoverable AI agent workflows.
• Design MCP servers, SDKs and agent runtime interfaces for cross‑functional adoption.
• Establish observability, tracing, prompt versioning and token‑based cost governance across multi‑agent systems.

Skills

Distributed systems

LLM agent frameworks

Cross-functional leadership

Security & multi-tenant

Education

Bachelor’s or Master’s in CS

Tools

LangGraph

DeepAgents

Claude Agent SDK

Job description

Pinterest, Inc. is seeking a senior software engineer to architect, build and maintain durable execution platforms that support crash‑recoverable, stateful AI agent workflows.

You will design standardized Model Context Protocol (MCP) servers, SDKs and agent runtime interfaces for cross‑functional engineering adoption. This hybrid in‑office role requires 8+ years in distributed systems, hands‑on experience with LLM agent frameworks, and a proven ability to lead platform‑level decisions across