Product Software Engineer | San Francisco | $400k + meaningful equity

Harrison Clarke; San Francisco (CA); On-site; USD 140,000 - 240,000; Full time

Job summary

Harrison Clarke in San Francisco seeks a Product Software Engineer to shape the next generation of AI-powered autonomous agents. This hands-on IC role focuses on product interactions where users delegate tasks, observe agent activity, manage uncertainty, review outputs, and decide when to trust AI to act on their behalf.

You will own these problems end-to-end, contributing across product thinking, interaction design, and engineering with minimal process and high ownership.

Qualifications

• Strong generalists with exceptional product judgment.
• Think from first principles in problem solving.
• Have shipped production software and owned it post-launch.
• Care about craft, speed and performance.
• Operate with very little process.
• Use AI seriously and form opinions about where the technology is heading.
• Want responsibility and broad ownership.

Responsibilities

• Build experiences for interacting with autonomous agents and how users delegate work.
• Define how users understand what an agent is doing and how it works.
• Address uncertainty, review outputs, and guide trust in AI to act on behalf of users.
• Own these problems end-to-end as an individual contributor.

Skills

Generalist product judgment

Think from first principles

Ownership mindset

AI literacy / practical AI use

Job description

The best software engineers I know don't want to just write code.

They want to own the problem.

I'm working with a rapidly scaling AI company in San Francisco that is building something I think is genuinely interesting: the next generation of software where AI agents actually do the work.

They're looking for an exceptional Product Software Engineer to help define what that future feels like.

This isn't a traditional frontend role.

You'll be building the experiences through which people interact with autonomous agents - figuring out how users delegate work, understand what an agent is doing, handle uncertainty, review outputs, and ultimately trust AI to take action on their behalf.

And you'll own those problems end-to-end.

From:

• Product thinking & interaction design

The team is deliberately looking for strong generalists with exceptional product judgment, rather than someone who simply checks a particular stack.

They're looking for engineers who:

• Think from first principles
• Have shipped meaningfull production software and owned it after launch
• Care deeply about craft, speed and performance
• Are comfortable operating with very little process
• Use AI seriously in their own work and have formed strong opinions about where the technology is heading
• Want responsibility rather than a narrowly defined box

This is a hands-on IC role. Everyone builds.

And the opportunity is unusually high-leverage: you'll be working on product interactions that simply don't have an established playbook yet.

If you're the kind of engineer who could thrive at a top AI lab but would rather have outsized ownership over what gets built, I'd love to speak.