Best X Builds

Product hiring in San Francisco

14 product jobs in San Francisco that were actually posted on X, not copied from a board. Location is whatever the original post said.

14 roles · updated 2026-10-31

Product Engineer

Engineering

Speedrun

Product engineer for the talent tools. Full time contract in San Francisco. Posted by the lead for talent.

San Francisco@justmazer

Creator Growth

Content / Media

X

Founding role on Creators Product. Bring creators to X and grow the ones already there. LA or SF preferred. Posted by Creators Product.

Los Angeles or San Francisco, United States@allegrajacchia

Andera

Product engineering lead for AI audit agents. San Francisco, on-site. Posted by a teammate.

San Francisco, United States@natashajchen

Product Engineer

Engineering

Andera

Product engineer for AI audit agents. San Francisco, on-site. Posted by a teammate.

San Francisco, United States@natashajchen

ASAPP

Enterprise contact-center AI. Ship, not just roadmaps. Posted by someone on the team.

New York / Mountain View@Aishwaryaradhya

Product Engineer

Engineering

Mintlify

Product engineer. Hiring across San Francisco and New York.

San Francisco / New York, USA@mintlify

General Medicine

PillPack founders. Own finding, pricing, booking, and follow-up for consumer healthcare. a16z Build list.

San Francisco, US@thedanigrant

a16z New Media

Build tools that help founders grow faster. Work with the a16z New Media team in SF.

San Francisco, US@thedanigrant

Town

Personal AI assistant after a $55M Series A. Rethink email, calendar, and contacts. Posted by a16z New Media.

San Francisco / New York, US@thedanigrant

Headway

Staff PM. Up to $331k. Posted by a16z New Media.

Remote / New York / San Francisco / Seattle, US@katieschwartz

Product Engineer

Engineering

Runta

Safer execution environment for agents. $20M seed. SDK, CLI, APIs, DX. Up to $200k. a16z Build list.

San Francisco, US@katieschwartz

Brix AI

AI Product Manager Intern role at an HF0-incubated AI company building proactive AI workforce agents.

Palo Alto / Shanghai / Remote@PeihongD