Founding Engineer (Product)

Alex AI; San Francisco (CA); On-site; USD 150,000 - 230,000; Full time

Benefits offered by this job

Health insurance

Equity

Unlimited PTO

Job summary

Alex AI is hiring an engineer who can sit at the intersection of product and engineering, talking to users, identifying high-leverage problems, and shipping the solutions themselves. You will own end-to-end features from ideation to deployment and work daily with the founding team in a fast-moving startup.

You will need strong product instincts, a technical depth beyond pure implementation, and a bias for ownership. This in-person SF role emphasizes speed, real outcomes, and user-focused design.

Qualifications

• Own features from concept to shipping with minimal hand-holding.
• Deep technical background while prioritizing user experience.
• Thrive in fast iterations and shipping tangible results.

Responsibilities

• Own live interview experiences with sub-200ms latency targets.
• Build enterprise hiring dashboards for quick visibility of results.
• Tune AI components to reduce hallucinations and improve humanity.
• Define and ship new product bets end-to-end with users.
• Integrate with customer ATS and HRIS systems across modules.

Skills

Product instincts

Ownership

Fast learning

Job description

Alex is one of the fastest-growing startups to come out of its YC batch — revenue-generating, well-funded, backed by premier investors, with years of runway.

They're building the future of hiring. Alex's AI recruiter conducts live job interviews, helping companies get deep hiring signals faster and more efficiently than ever before. Customers love the product — and they're just getting started.

Location: San Francisco — fully in-person, 5 days/week

Comp: Competitive salary + equity, health insurance, unlimited PTO

Stage: YC-backed, strong traction, well-funded

Pace: Ship fast, own outcomes, work daily with the founding team

Why This Role Is Different

Most engineering roles ask you to execute against a spec. This one asks you to help write it. You'll sit at the intersection of product and engineering — talking to users, identifying the highest-leverage problems, and shipping the solutions yourself.

What You'll Own

• Live interview experiences that feel instant — targeting sub-200ms response latency
• Enterprise hiring dashboards that present results visually and fast
• AI fine-tuning work to reduce hallucination and make Alex more human
• New product bets — from scoping to shipping to iterating with real users
• Integration with customer ATS and HRIS systems end-to-end

You Might Be a Fit If You...

• Have strong product instincts — you can spot what matters and cut what doesn't
• Are technically deep but care about the user experience, not just the implementation
• Thrive with ownership and minimal hand-holding
• Move fast, learn fast, and ship things people actually use
• Are based in SF or ready to relocate — this is fully in-person

Bonus If You've...

• Shipped 0-to-1 products that grew to real user bases
• Built AI-powered consumer or enterprise tools
• Worked on real-time or voice interfaces
• Been a founding engineer who helped define product direction
• Turned ambiguous problems into shipped features without a PM