AI Agent Engine Engineer — Frontier Intelligence Systems

Perplexity; San Francisco (CA); On-site; USD 180,000 - 240,000; Full time

Job summary

Perplexity in San Francisco is seeking energetic engineers for the Agent Engine team to build frontier intelligence systems for millions of users. You will design and implement agent harnesses, integrate with our Perplexity Computer and Agent API, and collaborate with research.

You should be proficient in Python; experience with TypeScript/Go/Rust is a plus. You’ll own features end to end, ship reliable products, and help define secure, scalable architectures.

Qualifications

• Strong foundational familiarity with the AI systems stack.
• Proficiency in Python (bonus points for TypeScript, Go and Rust).
• Experience in at least one of: Harness engineering; Agent skills and plugin architectures; Model training and RL; Browser technologies (CDP, Playwright, extensions).
• Strong technical intuition and taste for UX excellence.
• Comfortable working with a small, fast-moving team; ownership bias.

Responsibilities

• Design frontier agent harnesses and systems for high-stakes work.
• Develop models and architectures to enable agents to achieve user objectives.
• Ensure consistent experiences across local and cloud environments with robust design.
• Collaborate with engineering and research to ship reliable features.

Skills

AI systems familiarity

Problem solving

Team collaboration

Tools

Python

TypeScript

Go

Rust

Job description

Perplexity in San Francisco is seeking energetic engineers for the Agent Engine team to build frontier intelligence systems for millions of users. You will design and implement agent harnesses, integrate with our Perplexity Computer and Agent API, and collaborate with research.

You should be proficient in Python; experience with TypeScript/Go/Rust is a plus. You’ll own features end to end, ship reliable products, and help define secure, scalable architectures.