Best X Builds

Product Jobs Posted on X (Twitter)

PMs and a few product-engineer hybrids. Thin on purpose; X is louder about engineering than product. 57 roles on this page.

57 roles · updated 2026-11-04

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

Cloudflare

Product manager for Workers AI, AI Gateway, AI Search, or web search. DM Michelle.

@michellechen

Sunday Robotics

Senior product manager for infra, scaling consumer robot deployment. Posted by the head of product.

Redwood City, CA@brainstub

CD PROJEKT RED

Technical producer in Warsaw. Same hiring post. Posted by the company.

Warsaw@CDPROJEKTRED

Fuse Energy

AI product owner on the same hiring tweet. Posted by talent on the team.

@JakeTheTechRec

Product Marketer

Content / Media

Propaganda

Product marketing on the same hiring tweet. Posted by someone on the team. DM.

@BobbyThakkar

Vaani

First product designer. Speech models and infra. Co-own flows with the founders. Posted by a founder.

India@dstartupkid

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

Tighten

Technical PM. North and South America strongly preferred. Posted by the CEO.

North America / South America@mattstauffer

Elfina Health

0-to-1 PM after pre-seed. 4+ years, shipped consumer. On-site Bengaluru. Posted by the founder.

Bangalore, India@tanviagrawal

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

GitHub

Product manager on the Code product team. Posted by a teammate.

United States@pierceboggan

GitHub

Senior product manager on the Code product team. Posted by a teammate.

United States@pierceboggan

Blockworks

Senior product manager for crypto data products. Posted by a teammate.

United States@MikeIppolito_

Offchain

Enterprise commercial lead for Arbitrum and ZeroDev. Remote. Posted by a co-founder.

Remote@sgoldfed

Ethena Pay

Head of product for Ethena Pay. Fully remote. Posted by the company.

Remote@EthenaPay

Colate

Product manager for Colate's AI-native tools. London. Posted by the founder.

London, UK@YogiYaramchitti

ASAPP

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

New York / Mountain View@Aishwaryaradhya

The Browser Company

The product-leaning prompt role on Dia. Open to designers, artists, and other non-traditional backgrounds. Same post.

New York, NY@NickADobos

Tessl

Product manager, London hybrid. Same Tessl hiring thread.

London, UK@tessl_io

Neosigma

Founding generalist across product, GTM, strategy, and partnerships. Former founders and early operators. Posted by the CEO.

@gauri__gupta

Polymarket

Core product managers for trading, social, sports, crypto, and personalization. Apply on Ashby.

@srishtiespn

Product Engineer

Engineering

Mintlify

Product engineer. Hiring across San Francisco and New York.

San Francisco / New York, USA@mintlify

Expedier

Own the lifecycle for cross-border payments, FX, virtual accounts and remittances. 4–6 years, fintech preferred.

Hybrid@amosuibk

favorited

Own notifications, sharing, and core mobile flows. Up to $168k. a16z Build list.

Santa Monica, US@katieschwartz

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

Wintermute

Open roles across C++ quant and trading-platform engineering, ML research, options and prediction-market trading, DeFi trading, and product. London, NYC, Singapore and more.

London / NYC / Singapore@wintermute_t

Elfina Health

Building India’s next therapy, psychiatry and coaching journey. Lead Engineer (6–7+ years) owns tech and infra; Senior PM shapes clinical + tech + ops; Designer owns visual language and web.

India@tanviagrawal

Skydo

Three PM roles. 2–4 years PM experience. Cross-border B2B payments.

Bangalore, India@movinj

Product Engineer

Engineering

Overlap AI

Build outcome-based pricing product. High shipping velocity. US work authorization required.

US (Remote/Hybrid)@caseytraina

Brix AI

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

Palo Alto / Shanghai / Remote@PeihongD