Founding Engineer, AI Agents (Visa Sponsorship - San Francisco, USA)

Visa sponsorship available. An early-stage AI company is building autonomous agents that can carry out complex computer-based work reliably over long periods. As a founding engineer, you will take ownership of core agent systems spanning execution, memory and evaluation, and help move agents from human-reviewed runs toward dependable autonomous operation.

What you'll do

• Build agents that pursue a goal over multiple weeks with little or no human intervention.
• Design memory systems that let agents retain knowledge and improve as they work.
• Develop evaluation frameworks that measure whether agents outperform human task baselines.
• Improve agent reliability so that each run needs less human review.
• Shape the agent architecture and engineering practices as the team grows.

What you need

• Hands-on experience building production agents that people rely on, with a clear grasp of their failure modes.
• Experience with agent memory, long-running execution, or multi-step reasoning systems that keep goals on track over time.
• Experience creating evaluation frameworks that inform real decisions and benchmark against human-level performance.
• At least 1 to 2 years at a fast-growing or AI-focused startup.
• A track record of published research others build on, or software shipped at meaningful scale.
• Strong engineering fundamentals; experience designing agent architectures is a plus.
• Collaborative approach and genuine conviction in the potential of AI agents.

How to apply

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