Best X Builds

Startup hiring in San Francisco

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

31 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

Engineer

Engineering

Paradev

Engineer, in the office in San Francisco five days a week. Show work you have shipped. Posted by a cofounder.

San Francisco@FlyaKiet

Bolt

Account executive. Up to $400,000 OTE plus equity. DM Mern.

New York or San Francisco@mrinalsingh02

CoreSpeed

Design engineer for the site, dashboard, and docs. $10,000 a month to start. Comment or DM Milton.

Remote or San Francisco@miltonheyan

GTM Engineer

Engineering

PumpGTM

Engineer for GTM and CRM products. Paid work trial, then long term. Office in San Francisco, remote okay.

San Francisco or remote@NamanyayG

Fluxera

Founding GTM. 100k to 120k plus equity. San Francisco startup and VC networks preferred. Posted by the founder. DM.

San Francisco preferred@Shubham_6x

Fluxera

Solutions engineer. 35k to 40k plus equity. Same post. DM.

Remote, San Francisco preferred@Shubham_6x

GTM Intern

Content / Media

Photon

GTM intern, two seats, on-site in San Francisco. Email juliec@mail.grokbot.com. Posted by the CMO.

San Francisco@0xJuliechen

Marketing

Content / Media

Photon

Full-time marketing, on-site in San Francisco. Same post. Posted by the CMO.

San Francisco@0xJuliechen

DevRel

Engineering

Photon

Full-time developer relations, on-site in San Francisco. Same post. Posted by the CMO.

San Francisco@0xJuliechen

Growth

Startups

Ambi

Growth hire in San Francisco, beside the marketing lead. DM her. Posted by the marketing lead.

San Francisco@sheetaverma

Human Archive

Robot learning intern in the San Francisco office. Posted by the founder.

San Francisco, CA@babugi28

Trigger.dev

Developer relations in San Francisco. Same hiring post. Posted by someone on the team.

San Francisco@jdkanani

16VC

Fundraising, investing, founders, research. Bengaluru, London, or San Francisco. Email hr@16vc.co. Posted by the GP.

Bengaluru, India / London, UK / San Francisco, US

Corgi

Chief of staff in San Francisco. Email b@corgi.com with the role in the subject. Posted by the founder.

San Francisco, United States

Corgi

Investor relations in San Francisco. Email b@corgi.com. Posted by the founder.

San Francisco, United States

Audacious HQ

Recruiting, community, and platform for GTM in SF and NYC. Posted by the founding partner.

San Francisco / New York, United States@hellosprice

Sixtyfour

Founding growth for agents that do enterprise research. SF in person. $120k to $150k plus equity. Posted by the CEO.

San Francisco, US@saarth_

Inferact

Head of Engineering on the vLLM inference stack. Up to $280k, SF. a16z Build list.

San Francisco, US@katieschwartz

Astro Mechanica

Top technical authority for the military aircraft program. Propulsion, avionics, flight controls. Up to $300k. Secret clearance. a16z Build list.

San Francisco, US@katieschwartz

General Medicine

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

San Francisco, US@thedanigrant

Munari

a16z Speedrun. Reliability infra so robots work in the real world, not just the lab. On-site SF.

San Francisco, US@katieschwartz

a16z New Media

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

San Francisco, US@thedanigrant

OpenEvidence

Elite engineer on special projects with the founders. Sequoia partner Shaun Maguire posting. Medical AI used by most US doctors.

San Francisco / Miami, US@shaunmmaguire

Tenera

a16z Speedrun-backed. Predict how users react to software before you ship. Own agent infra, backend, and frontend.

San Francisco, US@katieschwartz

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

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