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Engineering hiring in United States

123 engineering jobs in United States that were actually posted on X, not copied from a board. Location is whatever the original post said.

123 roles · updated 2026-09-27

Engineer, Prime Agent

Prime Intellect

Agent harnesses, cloud agents, self-improving loops, sandboxes, evals. SF, in person. Posted by someone on the team.

San Francisco, United States · Sep 24, 2026

engineeringai

Mobile AppSec Engineer

Shopify

Find and fix mobile vulnerabilities before they ship. Canada or US. Posted by Head of Mobile.

Canada or United States · Sep 24, 2026

securityengineering

Engineer

Pilgrim Labs

Hardware that engineers, manufactures, and deploys biology. Posted by founding team. Reach out.

United States · Sep 24, 2026

engineeringstartupfounding

Engineer

Aside

Memory, computer use, compaction, agent loop. $160k to $300k plus equity. SF, in person. Posted by the CEO.

San Francisco, United States · Sep 23, 2026

engineeringaifounding

GTM Engineer, Revenue Systems

Warp

Own Salesforce, Snowflake, Clay, Outreach, Gong as Warp goes from a handful of reps to 100+. NYC, in person. Posted by the CEO.

New York, United States · Sep 22, 2026

engineeringstartup

Senior Research Engineer, ASPIRE

NVIDIA

Same ASPIRE lab. Research engineer track for autonomous vehicles and Physical AI. Posted by the AV research lead.

Santa Clara, United States · Sep 22, 2026

researchengineeringai

Reverse Engineer

Jobbie

$150k to $200k, remote, US-based. Bot-building experience. Posted by the founder.

Remote, United States · Sep 22, 2026

engineering

Member of Technical Staff

Robocurve

Frontier robotics evals. $170k-$300k, $5k referrals. San Francisco, in person. Posted by the co-founder.

San Francisco, United States · Sep 20, 2026

engineeringairesearch

Mobile Engineer

True Markets

Mobile engineer in Noho, NYC. Posted by the founder and CEO.

New York, United States · Sep 20, 2026

engineeringweb3

DeFi Engineer

True Markets

DeFi engineer in Noho, NYC. Posted by the founder and CEO.

New York, United States · Sep 20, 2026

engineeringweb3

Trading Engineer

True Markets

Trading engineer in Noho, NYC. Posted by the founder and CEO.

New York, United States · Sep 20, 2026

engineeringweb3

Founding AI Engineer

Andera

AI agents for audit. $37M Series A. San Francisco, on-site. Posted by a teammate at Hack the North.

San Francisco, United States · Sep 20, 2026

engineeringaifounding

Product Engineering Lead

Andera

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

San Francisco, United States · Sep 20, 2026

engineeringproductai

Infrastructure Engineer

Andera

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

San Francisco, United States · Sep 20, 2026

engineeringcloudai

Lead AI Engineer

Andera

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

San Francisco, United States · Sep 20, 2026

engineeringai

Product Engineer

Andera

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

San Francisco, United States · Sep 20, 2026

engineeringproductai

Engineering Lead

Onramp

Player-coach engineering lead for bitcoin custody and money movement. Remote US. Posted by the founder.

Remote, United States · Sep 19, 2026

engineeringweb3

Founding Engineer

Shorebird

Founding engineer at a small Flutter tooling team. Posted by a teammate.

Remote, United States · Sep 18, 2026

engineeringfoundingstartup

Senior Mobile Engineer

Phantom

Senior-to-staff mobile engineer on an AI plus trading team. US and EU time zones. Posted by a teammate.

Remote, US and EU · Sep 17, 2026

engineeringweb3

Senior Backend Engineer

Phantom

Senior-to-staff backend engineer on an AI plus trading team. US and EU time zones. Posted by a teammate.

Remote, US and EU · Sep 17, 2026

engineeringweb3

Lead Aerothermal Engineer

Hop Aero

Lead aerothermal for hypersonic rocket cargo. Orange, CA. Posted by the founder.

Orange, CA, United States · Sep 17, 2026

engineeringstartup

Lead GNC Engineer

Hop Aero

Lead GNC for hypersonic rocket cargo. Orange, CA. Posted by the founder.

Orange, CA, United States · Sep 17, 2026

engineeringstartup

Propulsion Mechanical Engineer

Hop Aero

Propulsion mechanical engineer for hypersonic rocket cargo. Orange, CA. Posted by the founder.

Orange, CA, United States · Sep 17, 2026

engineeringstartup

Design Engineer

Kalshi

Design engineer for prediction markets. New York. Posted by talent on the team.

New York, United States · Sep 17, 2026

designengineering

Software Engineer

Novig

Software engineer at a sports prediction market. NYC, four days in office. Posted by a teammate.

New York, NY · Sep 16, 2026

engineering

Founding Engineer

Marble

Founding engineer, in person in NYC. YC S26, restaurant back-of-house AI. Posted by a co-founder.

New York, NY · Sep 16, 2026

engineeringaifounding

Manufacturing

Allen Control Systems

Manufacturing roles in Austin for Bullfrogs. Posted by the president.

Austin, TX · Sep 16, 2026

engineering

Design Engineer

LearnVector

Design engineer, in-person Mountain View. Andrew Ng's learning product. Posted by the hiring person on the team.

Mountain View, CA · Sep 16, 2026

designengineeringai

Senior Platform Engineer

Sprig

Senior platform engineer. Hybrid SF. Posted by someone on the team.

San Francisco, CA · Sep 16, 2026

engineering

Software Engineer

Factory

Engineering for Droid, the software development agent. Posted by a teammate.

United States · Sep 16, 2026

engineeringai

Senior Systems Engineer

Agility Robotics

Architecture, requirements, and integration for a humanoid already on a production floor. Hybrid. Posted by the company.

Fremont, CA · Sep 2, 2026

engineering

Applied Research

Proximal

Build the applied research function and sit with customers. North Beach, SF. Posted by a co-founder.

San Francisco, CA · Sep 2, 2026

researchengineeringai

Developer Relations Engineer, AI

Google Cloud

Gemini, Firebase AI Logic, and reference apps for full-stack developers. NYC. Posted by the team.

New York, NY · Sep 2, 2026

engineeringaicloud

Senior Backend Engineer

ZeroDrift

AI lab that trains its own models. Compliance on agent communications. NYC. Posted by the team.

New York, NY · Sep 1, 2026

engineeringai

AI Engineer, Evals and Agent Quality

Town

Model selection, routing, and evals so Townies get better, faster, cheaper. SF, $250k to $300k. Posted by the founder.

San Francisco, CA · Sep 1, 2026

engineeringai

Full-Stack Product Engineer

o1.exchange

Smart contracts, DeFi, backend and frontend. Global team across US, EMEA, and APAC. Posted by the founder.

Remote (US, EMEA, APAC) · Sep 1, 2026

engineeringweb3

Model Behavior Engineer

The Browser Company

Engineering-heavy prompt role on Dia. Prototypes, harnesses, evals, shipping in a large codebase. Posted by Nick Dobos.

New York, NY · Aug 29, 2026

engineeringai

Principal Design Engineer

Paper

Principal design engineer. Design and ship complex UI, hit 120 fps, small remote team. Posted by the CEO.

Remote (Americas, Europe, Australia) · Aug 29, 2026

designengineering

Engineering

NetBox Labs

Remote engineering roles in the US, UK, and Australia. Network and infrastructure management. Posted by the company.

Remote (US, UK, Australia) · Aug 29, 2026

engineering

Founding Engineer

Doji

Founding engineer, NYC. Same Doji careers post.

New York, NY · Aug 28, 2026

engineeringfoundingstartup

Research Engineer

Doji

Research engineer, NYC. Same Doji careers post.

New York, NY · Aug 28, 2026

engineeringresearchaistartup

Senior Full Stack Engineer

Rubin Observatory

Senior full stack for Education and Public Outreach. Interactive, data-driven web. Posted by the observatory.

United States · Aug 28, 2026

engineeringscience

Engineer

aaru

Engineers, NYC in person. Same team that is already hiring designers. DMs open.

New York, NY · Aug 27, 2026

engineeringstartup

Design Engineer

Baro

Design, build, and maintain websites for consumer brands. Contract, NY preferred. a16z speedrun. DMs open.

New York, NY · Aug 27, 2026

designengineeringstartup

Software Engineer

Alchemy

Software engineers and several other roles. SF and NYC. Posted by growth at Alchemy. DMs open.

San Francisco / New York, NY · Aug 27, 2026

engineeringweb3

Founding Engineer

Sugar

Founding engineer in NYC. Equity plus competitive comp, $10k referral. Posted by the founder.

New York, NY · Aug 27, 2026

engineeringfoundingstartup

Developer Advocate

Tessl

DevRel for agent skills and context. San Francisco. Posted by the company.

San Francisco, US · Aug 27, 2026

engineeringai

Developer Advocate

Tessl

DevRel for agent skills and context. New York. Same Tessl hiring thread.

New York, NY · Aug 27, 2026

engineeringai

Applied AI Engineer

Profound

Applied AI for an enterprise marketing harness. SF and NYC, no remote. Posted by the CTO.

San Francisco / New York, NY · Aug 27, 2026

engineeringai

Frontend Engineer

Profound

Frontend engineer. SF and NYC, no remote. Same Profound hiring thread.

San Francisco / New York, NY · Aug 27, 2026

engineering

Data Engineer

Profound

Data engineer. SF and NYC, no remote. Same Profound hiring thread.

San Francisco / New York, NY · Aug 27, 2026

engineering

Principal Engineer

Paradigm

Principal engineer. Singapore, New York, or remote. Posted by the company.

Singapore / New York, NY · Aug 27, 2026

engineeringweb3

Senior Engineer

Paradigm

Senior engineer. Singapore, New York, or remote. Same Paradigm hiring thread.

Singapore / New York, NY · Aug 27, 2026

engineeringweb3

Engineer

Merge

Engineers in SF and NYC. Connective layer for AI in product and workforce. Posted by the cofounder.

San Francisco / New York · Aug 25, 2026

engineeringai

Applied AI Engineer

Mintlify

Applied AI engineer. Hiring across San Francisco and New York.

San Francisco / New York, USA · Aug 19, 2026

aiengineering

Product Engineer

Mintlify

Product engineer. Hiring across San Francisco and New York.

San Francisco / New York, USA · Aug 19, 2026

engineeringproduct

Forward Deployed Engineer

Mintlify

Forward deployed engineer. Hiring across San Francisco and New York.

San Francisco / New York, USA · Aug 19, 2026

engineering

Research Engineer, Lab Automation

Periodic Labs

Turn scientists' experiments into hardware setups and instrument workflows. Up to $250k. a16z Build list, Aug 17.

Menlo Park, US · Aug 18, 2026

engineeringresearchaistartup

Lead Software Engineer

Northwood Space

Lead the Cloud team: antenna scheduling, booking, network orchestration. Up to $260k. a16z Build list.

Torrance / Los Angeles, US · Aug 18, 2026

engineeringstartup

Head of Engineering

Inferact

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

San Francisco, US · Aug 18, 2026

engineeringaistartup

Chief Engineer, Defense

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 · Aug 18, 2026

engineeringstartup

Founding Engineer

Munari

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

San Francisco, US · Aug 18, 2026

engineeringaifoundingstartup

Lead NVH Engineer

Waymo

Lead noise, vibration, and harshness strategy. Integrate the self-driving system with the vehicle. a16z Build list.

Mountain View, US · Aug 18, 2026

engineering

Tech Lead Manager, Education

OpenAI

Lead senior full-stack engineers building AI-native learning in ChatGPT. a16z Build list.

San Francisco, US · Aug 18, 2026

engineeringai

Full Stack Engineer

Airbase

Rebuild US radio spectrum infrastructure. Up to $225k, NYC. a16z Build list.

New York, US · Aug 18, 2026

engineeringstartup

Structures Engineer

Galadyne

Ex-SpaceX propulsion lead. Design primary and secondary structures for flight vehicles. a16z Build list.

Austin, US · Aug 18, 2026

engineeringstartup

Senior Product Engineer

a16z New Media

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

San Francisco, US · Aug 17, 2026

engineeringproductstartup

Member of Technical Staff

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 · Aug 17, 2026

engineeringaistartup

Founding Engineer

Tenera

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

San Francisco, US · Aug 17, 2026

engineeringaifoundingstartup

AI Product Engineer

Town

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

San Francisco / New York, US · Aug 17, 2026

engineeringaiproductstartup

Software Engineer

Uplift

Ex-SpaceX/Tesla founders, $7M out of stealth. Hiring software, mechanical, electrical, manufacturing. Posted by a16z New Media.

United States · Aug 17, 2026

engineeringstartup

Staff Software Engineer

Headway

Staff SWE on insurance rails so patients can get mental healthcare. Up to $336k. a16z Build list.

Remote / United States · Aug 17, 2026

engineering

Product Engineer

Runta

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

San Francisco, US · Aug 17, 2026

engineeringproductaistartup

Full Stack, Android, Mechanical and Hardware Engineer

Flyby Robotics

Build the aerial intelligence platform in person in LA. Full stack (React/TypeScript/Go/Python), Android (Kotlin/Compose), senior mechanical and senior hardware (PCB/firmware). US citizen or permanent resident.

Los Angeles, CA · Aug 15, 2026

engineeringstartup

Quant, Trading, Engineering and Product roles

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 · Aug 14, 2026

engineeringaiweb3productresearch

FDE, Full Stack and ML Engineer

Alloy Robotics

Just raised $8M at an $80M valuation to build agents over robotics data. Hiring FDE, Full Stack Software Engineer, ML Engineer, plus AE, Chief of Staff and Growth. Usage up 51% MoM.

Remote (US) · Aug 14, 2026

engineeringaistartup

Product Engineer

Overlap AI

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

US (Remote/Hybrid) · Aug 11, 2026

engineeringaiproduct