Platform Engineer – AI Agent Runtime & Infrastructure

Hark; San Jose (CA); On-site; USD 170,000 - 400,000; Full time

Job summary

Hark, based in San Jose, CA, is looking for a Software Engineer to build the core platform that powers its AI agent. This high-ownership role involves developing the runtime, orchestration, and memory systems that define the product's capabilities.

The ideal candidate will have over 5 years of software engineering experience, a strong grasp of systems engineering, and a passion for AI. Competitive compensation ranges from $170,000 to $400,000 annually.

Qualifications

• 5+ years of relevant software engineering experience.
• Experience at a fast-growing AI or infrastructure-focused company.
• Genuine curiosity about AI and agentic systems.

Responsibilities

• Build the core runtime that powers Hark's agent platform.
• Own features end-to-end from prototype to deployment.
• Architect platform primitives for the product team.

Skills

Systems engineering fundamentals

API design

Infrastructure reliability

Performance reasoning

Curiosity about AI

Strong communication

Tools

Agent frameworks

Streaming architectures

Execution sandboxes

Memory systems

Job description

Hark, based in San Jose, CA, is looking for a Software Engineer to build the core platform that powers its AI agent. This high-ownership role involves developing the runtime, orchestration, and memory systems that define the product's capabilities.

The ideal candidate will have over 5 years of software engineering experience, a strong grasp of systems engineering, and a passion for AI. Competitive compensation ranges from $170,000 to $400,000 annually.