Founding Jobs Posted on X (Twitter)

If you want to work with me and are passionate about working with hardware companies, hmu i’m hiring founding engineers starting immediately. don’t dm me with random shit, send me your recent project

pratik

@pratik_satija

how lucky is it to be - working on your own company - around people you look up to - in a city with the most ambitious builders and after months of ups and downs developing conviction on the problem statement you’re working on DFQ all the way

12:47 AM · Sep 27, 2026

Read 20 replies

engineeringaifoundingstartup

Tushar | Vaani AI Research

Lead Product Designer

Vaani

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

India · Sep 27, 2026

@dstartupkid

We're hiring our first Lead Product Designer to occupy that empty chair in our garage office ⚡️⚡️ It’s the User Experience chair, and it’s been waiting for a while. At @VaaniHQ, we’re building the speech models & infra stack, with one product for both solo hackers and Show more

2:26 PM · Sep 25, 2026

designproductaifoundingstartup

Engineer

Pilgrim Labs

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

United States · Sep 24, 2026

Mauricio Moel

@MauricioMoel

Proud of the team and grateful to our backers. Very much Day 1 @pilgrimlabs. We’re building America’s biology prime to engineer, manufacture and deploy hardware for biology. We’re hiring engineers, scientists, and operators. Reach out.

Jake Adler

@jakeadler

1/ Biological threats can bring a country to a halt without a single shot being fired. Yet much of our biodefense infrastructure has barely changed in decades, even as America’s institutions produce extraordinary scientific breakthroughs.

6:05 PM · Sep 23, 2026

engineeringstartupfounding

Founding Marketer

Kepler

Founding marketer on the same hiring tweet. Posted by someone on the team.

Sep 24, 2026

Eddie Hammond

@HammondEddie

Replying to @lennysan

Hiring engineers as well as founding marketer and talent leads at Kepler! jobs.ashbyhq.com/kepler-ai

1:56 PM · Sep 24, 2026

Read 1 reply

contentfoundingstartup

Founding Engineer

Fluxera

Founding engineer. Base plus equity. Posted by the founder. DM.

Sep 24, 2026

Shubham Chansoriya

@Shubham_6x

We're hiring a founding engineer for Fluxera technologies. Base + Equity. Dm me if anyone is Interested.

Caleb Dean 🏴‍☠️🇦🇺

@CalebDeannn

Come change the world. We’re hiring more engineers. Dm me.

7:35 AM · Sep 24, 2026

engineeringfoundingstartup

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

jun

@hyojun_at

we're hiring engineers of @AsideAI $160k-300k + significant equity, in-person SF we're growing crazy fast (25% WoW) and now building v2 join us if you wanna build the harness from the ground up (memory, computer use, compaction, agent loop) and compete with frontier labs

4:37 AM · Sep 23, 2026

784

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engineeringaifounding

Founding Marketer

Maverick Intelligence

B2C playbook on B2B AI. Fluent in Claude Code or Codex, talks to camera, has opinions. London or San Francisco. Posted by the CEO.

London, United Kingdom or San Francisco, United States · Sep 22, 2026

MaverickFraser

@MaverickF39

tl;dr – I'm hiring a founding marketer. Location: London or San Francisco. One of my (many) hot takes is that the companies which will win B2B in the AI era will do it using a B2C marketing playbook.

10:38 PM · Sep 21, 2026

contentfounding

Founding Researcher

Banbury Road

Research lab around a multi-model scaling law. Email junyu@banburyroad.ai. Posted by someone on the team.

Sep 22, 2026

engineer cat 🐈

@MLCatttt

We’re hiring! If you think you’d be a great fit, reach out to junyu@banburyroad.ai Excited to build together!

Bella

@nazzari

I am helping hire founding researchers for a stealth startup! This is a research lab is building around a new scaling law: AI capability grows with the number of models trained together. Their 16-model system, matches or beats frontier models on science and reasoning benchmarks

7:13 PM · Sep 21, 2026

266

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researchaifounding

Chief of Storytelling

Remster

Owns story and growth, not cuts. Weekly GTM experiments, travel BLR and SF. DM a video. Posted by the founder.

Bangalore, India or San Francisco, United States · Sep 22, 2026

Sumukha nadig

@sumukhanadig8

recently made a hiring post and I can't believe how many DMs I got for video editors (it's probably my fault) we DO NOT want a video editor. we're hiring for a role we call "chief of storytelling" 💡 what we're looking for: - runs new GTM experiments each week - has a solid Show more

Sumukha nadig

@sumukhanadig8

here's some BTS (actually a hiring post) the past month in SF was intense. product demos, conferences, health mixers, studio podcasts, interviews, launches - we shot all of it. we're building the ultimate sleep system for longevity, starting with environmental control

6:10 AM · Sep 22, 2026

contentfounding

Applied AI, Startups (Tokyo)

OpenAI

Founding Tokyo seat on the Startups Applied AI team. ML engineers, founders, CTOs. Posted by the team lead.

Tokyo, Japan · Sep 22, 2026

Wulfie Bain

@wulfie_bain_

Hiring a founding Tokyo 🇯🇵 member of my Startups Applied AI team at @OpenAI. Technical, high-agency, startup-obsessed, and based in Japan? You’ll help build the market from the ground up in a team of ML engineers, founders and CTOs. Apply below ⬇️

7:33 AM · Aug 5, 2026

508

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aifounding

Creator Growth

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 · Sep 21, 2026

Allegra Jacchia

@allegrajacchia

The Creators Product team at 𝕏 is growing. I’m hiring someone to help bring more great creators to 𝕏 and help existing creators on the platform grow. This is a founding role on our small but mighty team, so I’m looking for someone who is highly independent, resourceful, and Show more

7:12 PM · Sep 20, 2026

4.3K

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contentproductfounding

UI/UX Designer

OmniforceAI

First designer. Agent interfaces, RankAgent, brand, client apps. Remote, global. Posted by a founder.

Remote · Sep 21, 2026

Joshua Vaz

@Omniforcejosh

We’re hiring our first UI/UX Designer at OmniforceAI. You’ll own the design of: → AI agent interfaces + dashboards → RankAgent → OmniforceAI’s website + brand → Client-facing AI applications

5:42 AM · Sep 21, 2026

Read 14 replies

designaifounding

Founding GTM Lead

TensorScale

Own GTM, positioning, acquisition, and expansion for a fast inference API. Posted by the CEO.

Remote · Sep 20, 2026

Yao Zhang

@YaoZhangX

We’re hiring a Founding GTM Lead at TensorScale. Since launch, we’ve seen tremendous interest from developers and AI teams. Speed, cost, and ease of integration are consistently resonating with customers. Thank you to everyone who has tried TensorScale and shared feedback with Show more

5:03 PM · Sep 7, 2026

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contentfoundingai

Founder's Office / Chief of Staff

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 · Sep 20, 2026

Sridhar A

@sridharfyi

i’m hiring 3 people to help me build @16vchq founder’s office / chief of staff 📍Bengaluru / London / SF we're building an early-stage VC from the ground up our team is already spread across NYC, Dublin, London, SF, Boston, Prague & Bengaluru the role is a bit of everything Show more

6:34 AM · Aug 27, 2026

426

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startupotherfounding

Founding Engineer

Maverick Intelligence

Founding engineer to turn AI agents into customers. Posted by the CEO.

Remote · Sep 20, 2026

MaverickFraser

@MaverickF39

I'm hiring a founding engineer for Maverick Intelligence DM me if you want to turn AI agents into customers.

Watch on X

11:16 AM · Sep 10, 2026

Read 6 replies

engineeringfoundingai

Product Manager

Elfina Health

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

Bangalore, India · Sep 20, 2026

Tanvi Agrawal

@tanviagrawal

We’re hiring a Product Manager at Elfina Health - a mental health startup. True 0-to-1 role: team of 7, building the founding team post pre-seed fundraise. 4+ yrs PM experience, shipped consumer. Full-time, on-site Bengaluru. Apply 👇

5:22 AM · Aug 11, 2026

Read 6 replies

productfounding

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

natashajchen

@natashajchen

We're in Waterloo at @HackTheNorth this week, hiring engineers to join our team in San Francisco! ⚙️ At Andera, we build AI agents that turn weeks of manual audit work into minutes. As an engineer, you'll make them reliably reason over messy financial data and produce accurate Show more

10:33 PM · Sep 17, 2026

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engineeringaifounding

Founding Engineer

Shorebird

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

Remote, United States · Sep 18, 2026

Abhishek Doshi 🥑🐤

@AbhishekDoshi26

We are hiring at @shorebirddev 🐦 🎉 🔧 Founding Engineer 📊 Business Operations Small team, real customers, early enough that what you build actually shapes the company. shorebird.dev/jobs

1:24 PM · Sep 16, 2026

engineeringfoundingstartup

Founding Engineer

Parisi Labs

Founding roles across ML, engineering, and commercial. World models. Posted by a co-founder.

Sep 16, 2026

James LePage

@jameswlepage

Hiring great people to build world models @Parisi_Labs. Founding roles across ML, engineering and commercial. Early, impactful! jobs.ashbyhq.com/parisi-labs Reach out if you have any questions.

8:40 PM · Sep 12, 2026

engineeringaifounding

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

Arjun Chaliha

@arjunjchaliha

We're hiring a CRACKED founding engineer to join us in person at Marble (YC S26) in NYC! We're fresh out of Y Combinator and have signed over 150 venues in under four months. The next frontier in applied AI are systems that can perceive, reason about, and act on the physical Show more

10:22 PM · Sep 14, 2026

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engineeringaifounding

Founding Engineer

Tsenta

Founding engineer in Bangalore. YC S26. Posted by the CTO.

Bangalore, India · Sep 16, 2026

Pulkit Gupta

@pulkit_gupta2

we’re hiring a founding engineer in bangalore! apply here: ycombinator.com/companies/tsen… or email me at pulkit@tsenta.com

12:49 AM · Sep 15, 2026

322

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engineeringaifounding

Aubrey Darwin Niederhoffer

Founding Brand Designer

Swoop

Founding brand designer, hybrid Lagos. Visual, motion, video. Posted by the founder.

Lagos, Nigeria · Sep 16, 2026

@needaubrey

We're hiring a Founding Brand Designer for Swoop! This is a very high-impact role shaping our visual identity from the ground up. You'll work across visual design, motion, and video. Role is hybrid in Lagos! Link to apply in replies:

2:06 PM · Sep 3, 2026

228

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designfounding

Head of Kairos Labs

Kairos

Design and lead the incubator for new AI safety orgs. Remote, $140-270k. Posted by a co-founder.

Remote · Sep 3, 2026

Agus 🔸

@austinc3301

I'm very excited to announce that Kairos just raised $50M from @coeff_giving to build talent infrastructure for AI safety. We're using it to ambitiously grow our team and portfolio of projects, and we're now hiring for 10 open roles. 🧵

12:03 AM · Sep 3, 2026

619

Read 69 replies

aifounding

Founding Designer

EXO Labs

Sovereign AI on consumer hardware. In-person London. Posted by someone on the team.

London, UK · Sep 2, 2026

alex funk

@alexzfunk

does anyone want to build a generational company? we are hiring founding designer at @exolabs dms are open

9:59 AM · Sep 1, 2026

Read 2 replies

designfoundingai

Founding Engineer

Sparkles

YC W26. Coding agents for people who do not write code. Reviewable GitHub PRs, not unchecked deploys. £100k to £150k plus 1 to 2 percent. Posted by the CEO.

London, UK · Sep 1, 2026

Dan

@aidaniil

We are hiring Founding Engineers and Founding GTM in London! a short thread

4:53 PM · Aug 31, 2026

298

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engineeringfoundingai

Founding Engineer

Doji

Founding engineer, NYC. Same Doji careers post.

New York, NY · Aug 28, 2026

Doji

@doji_com

We’re hiring a designer to help us invent the future of (social) fashion shopping. If this sounds exciting, apply at doji.com/careers

SIP

@spottedinprod

doji · fitstagram by @doji_com

Watch on X

9:42 PM · Aug 27, 2026

Read 10 replies

engineeringfoundingstartup

Founding Engineer

BotBot

Founding engineer and founding design engineer. AI-native company building. Posted by the CEO.

Aug 27, 2026

Michael Mayernick

@mmayernick

Replying to @mmayernick

And we're hiring for exactly this way of working - a founding engineer and a founding design engineer: botbot.com/careers

9:11 PM · Aug 26, 2026

Read 2 replies

engineeringfoundingaistartup

Founding Engineer

EarnKit

Founding engineer to make it simple for agents to earn onchain. DM the founder.

Aug 27, 2026

Jenil

@jenilt

I'm hiring a founding engineer to help us build @earnkit_ai. We’ll work on making it simple for agents to earn onchain. DM with links to your portfolio and past work!

Jenil

@jenilt

Another $MINI buyback and burn processed (links below) We're working on a big launch of @earnkit_ai. If you'd like early access, reply below 👇

11:47 PM · Aug 26, 2026

Read 7 replies

engineeringfoundingweb3startup

Founding Engineer

Sugar

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

New York, NY · Aug 27, 2026

Luka Ivicevic

@lukaivicev

I’m hiring a founding engineer in NYC! Equity + competitive comp. Paying $10k for a referral fee as well. DM

1:37 PM · Aug 25, 2026

engineeringfoundingstartup

AI Engineer

Karwaan Labs

First engineer from India. Remote-first, high ownership. Posted by the team.

Remote (India) · Aug 27, 2026

Samyak Sahu

@5amyak_

Replying to @lennysan

We’re hiring for our first engineer from India - remote-first, high-ownership Early stages of something amazing, come join us karwaanlabs.com/careers/ai-eng…

4:38 PM · Aug 14, 2026

Founding GTM Lead

Worldline

0 to 1 enterprise and public-sector GTM in India. Mid to senior, remote. Posted by the founder.

Remote (India) · Aug 27, 2026

Sumeet Chougule

@_sumeetc

We’re hiring a Founding GTM Lead in India. Own 0→1 enterprise and public-sector GTM for Worldline: sales, category marketing, partnerships and paid sovereign-AI design engagements. Mid to Senior, hands-on, remote. getworldline.com/careers

3:53 PM · Aug 17, 2026

otherfoundingstartup

Founding Growth Lead

Sixtyfour

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

San Francisco, US · Aug 27, 2026

Saarth Shah

@saarth_

Hiring a founding growth lead at Sixtyfour. Our agents do research for the world's largest enterprises that nobody could do before. Almost none of it is public yet. That's the job. SF, in person. $120K-$150K + equity. DMs open.

2:26 AM · Aug 20, 2026

Read 11 replies

otherfoundingstartup

Founding Engineer

Cluster

Founding engineer at Cluster (a16z speedrun). Infra between agents and markets. DM the cofounder.

Aug 25, 2026

Luis Costa

@CostaLaveron

We're hiring a founding eng at @getclusterai. If you - pay attention to detail - think about users first - like early stage chaos - want to own complex features end to end - want to ship like a demon - are autonomous - want the opportunity to ship the latest & greatest Show more

Bella

@nazzari

Im helping hire for 3 founding eng roles in sf and nyc! all 3 are @speedrun 007 companies. 1. Munari Labs - feedback layer for physical AI - founding eng, edge systems - founding eng, infra - founding ml eng - founding robotics eng 2. Baro - general manager for consumer

6:46 PM · Aug 24, 2026

Read 6 replies

engineeringaifoundingstartup

Founding Engineer

Loura

Founding engineer in Riyadh. Ambient AI for complex orgs. Cash plus equity. DM the cofounder.

Riyadh, Saudi Arabia · Aug 25, 2026

Hashim Alsharif

@hashim1

We’ve been quietly building Loura - Ambient AI for complex organizations. Loura is an attempt to make AI an independent, active actor alongside people in how organizations operate, coordinate, control themselves, and adapt toward their goals. We’re hiring a Founding Engineer Show more

4:54 PM · Aug 20, 2026

Read 9 replies

engineeringaifoundingstartup

Founding Business Generalist

Neosigma

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

Aug 25, 2026

Gauri Gupta

@gauri__gupta

We're hiring a Founding Business Generalist to work closely with us across product, business, gtm, strategy, and partnerships at @neosigma_ai. We're looking for someone who understands technology deeply but is most energized operating at the intersection of business, product, Show more

7:24 PM · Aug 22, 2026

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foundingproductstartup

Founding Design Engineer

Orchard

Founding design engineer at orchard robots. Apply on Ashby.

Aug 21, 2026

grace wang

@gracewangdesign

we're hiring a founding design engineer! @orchard_robots apply here: jobs.ashbyhq.com/orchard/1dc6ba…

Watch on X

11:45 PM · Aug 20, 2026

designengineeringfoundingstartup

Founding Engineer

Polar Browser

Founding engineer for an AI browser that automates hours of work. Email hiring@polarbrowser.com with 2–3 extraordinary things you've done.

Aug 20, 2026

Kevin Jiang

@jiang_kev

This is @PolarBrowser's ARR with 3 people. Now, we’re hiring a founding engineer and designer to multiply a billion knowledge workers. We’re obsessed with problems like: → How do you build systems that scale agents to automate the company? One thing more important than Show more

3:04 PM · Aug 19, 2026

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engineeringfoundingstartupai

Founding Designer

Polar Browser

Founding designer for an AI browser a billion knowledge workers could use every day.

Aug 20, 2026

Kevin Jiang

@jiang_kev

3:04 PM · Aug 19, 2026

Read 12 replies

designfoundingstartupai

Founding Security Engineer

The Bitcoin Way

Founding security engineer for self-hosted Bitcoin infrastructure.

Aug 20, 2026

The Bitcoin Way

@Thebitcoinway_

Looking for a #Bitcoin job? 👀 We're hiring! We're looking for a talented Security Engineer to join our technical team and assist in securing our self-hosted infrastructure Come and help us create sovereign individuals 💪 More details in the link below 👇

1:00 PM · Aug 20, 2026

Read 1 reply

securityfoundingweb3

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

just posted a new list of open roles / startups hiring right now feat @rmn & @alanyguo, @advaith_sridhar, @ianbrooke, @jamie_niu, @arthurmensch, @tbc415, @Kalshi, @zipline, @Flock_Safety, & many more thanks @nicoledebow for writing this one with me :)

12:54 PM · Aug 12, 2026

226

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engineeringaifoundingstartup

Founding Engineer

Discovered Materials

$9M to build AI scientists that discover semiconductor materials. a16z Build list.

Aug 18, 2026

12:54 PM · Aug 12, 2026

226

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engineeringaifoundingstartup

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

new list of open roles on the @a16z build newsletter. thanks @thedanigrant for writing this one with me :) feat @shklarski @KexinHuang5 @inferact @OrsakNicole @ValsAI @mjlbach @jgreze @tonydevincenzi @Jackmc and many more full list here: a16zbuild.substack.com/p/open-roles-a…

1:00 AM · Aug 14, 2026

Design Leader

Gravity

Invent the design language for human and agentic care. Clinician and patient interfaces. a16z Build list.

New York, US · Aug 17, 2026

1:00 AM · Aug 14, 2026

Founding MTS – Infra Engineer

Benchflow

Deeply technical founding infra engineer. Airflow, Medallion, 100TB-scale data. Grind-mindset startup seat.

Aug 15, 2026

Xiangyi Li

@xdotli

apart from this, @benchflow_ai is hiring for deeply technical infra engineer as founding mts if the following sounds familiar to you & you have grind mindset for startups, you probably are a good fit - 100TB - AirFlow - Medallion connect me on linkedin and let's chat!

Xiangyi Li

@xdotli

if you are a startup working on a product related to - devops - ai infra - observability - telemetry - rl / posttraining infra and looking for customer / design partners, i'd love to chat with you! we can pay up to 5-fig for design partnership to help you shape your product

2:49 AM · Aug 15, 2026

engineeringaicloudstartupfounding

Founding Engineer

Joey

Founding engineer at an AI dating startup.

Aug 14, 2026

- @cnitschelm (prev spacex) and @trevoroleary (prev tesla) just came out of stealth with $7M for Uplift to rethink how homes get built - @carlymalatskey is hiring a founding engineer for her AI dating startup, Joey - @freialobo & @jackiehluo just came out of stealth with sigil Show more

4:24 PM · Aug 14, 2026

engineeringaistartupfounding

Founding Engineer

Sigil

Just came out of stealth. Hiring a founding engineer.

Aug 14, 2026

4:24 PM · Aug 14, 2026

engineeringstartupfounding

Founding Engineer

Cardinal

Founding engineer role.

Aug 14, 2026

4:24 PM · Aug 14, 2026

engineeringstartupfounding

Founding Software Engineer (TypeScript / Node.js)

AI-native recruiting platform

Build the backend for an AI-native recruiting platform. TypeScript, Node.js, NestJS, PostgreSQL, Redis and AI agents. $100k to $200k plus 0.1% to 0.75% equity.

Remote (Worldwide) · Aug 11, 2026

Zamir Khotov

@ZamDeveloper

💼 Hiring Founding Software Engineer (TypeScript / Node.js) | $100K–$200K | Remote Worldwide Build the backend powering an AI-native recruiting platform, designing scalable TypeScript services, APIs, and infrastructure while helping define the architecture of an early-stage Show more

4:10 PM · Aug 11, 2026

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engineeringaistartupfounding