Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Founding Software Engineer

Full-time

Simple Ai

About Simple

Simple AI is building state of the art voice AI agents for enterprise. Our realistic agents help iconic businesses like Doordash, xAI, and Omaha Steaks handle all kinds of phone operations, from customer support to order intake to lead qualifications. We are growing revenue like crazy and looking to hire a couple founding software engineers to help us stay afloat of current customer demand and also build out systems for the future. We are very excited about the potential for AI to change the world, and work out of our SF based office 5 days a week.

Simple AI is backed by world-class investors and operators like Y Combinator, Massive Tech Ventures, Michael Seibel (co-founder of Twitch), Jared Friedman (Scribd), Alexandr Wang (Scale AI), Matt Van Horn (June Oven and Lyft), Suhail Doshi (Mixpanel), JJ Fliegelman (WayUp) and Scott Wu (Cognition).

The Team

The founders ( Catheryn and Zach ) met while running software teams at YC, where they shipped tons of new products for YC founders, including YC’s co-founder matching site. Cat previously worked at Instagram and Facebook and earned degrees in math and computer science at MIT. Zach previously studied computer science and statistics at U Chicago and led software at PEAK6. We have grown into a strong team of 8 and are continuing to scale quickly

What We Offer

  • Competitive salary & meaningful equity

  • Employee-friendly equity terms

  • An office located in SF

  • Health, dental & vision insurance

  • Free lunch & dinner at the office

  • Free Ubers home after 8:30pm

  • Regular team events & offsites

What You'll Need

  • 4+ years of relevant work experience.

  • Strong problem-solving skills and enthusiasm for addressing technical challenges.

  • A customer-first mindset with strong communication skills and interest in product design and prioritization.

  • Self-motivated and able to work independently.

  • Passion about learning and keeping up with latest AI advancements.

Nice To Have

  • Previous experience with prompt engineering or working with AI/LLM-based platforms.

  • Experience as an early-stage startup engineer or founder.

  • Experience with TypeScript, React, Python, Ruby on Rails, PostgreSQL, AWS.

Fun fact: every engineer on our team has founded a company!

Vacancy posted 10 hours ago
Similar jobs that could be interesting for youBased on the Founding Software Engineer in San Francisco, CA vacancy
  •  ...professionals and organizations to work more effectively. As a founding member of the Legal engineering team, you will help define the technical foundation for...  .... About the Role As a Founding Full-Stack Software Engineer on the Legal team, you will help imagine,... 
    Suggested
    Full time

    OpenAI

    San Francisco, CA
    10 hours ago
  •  ...platform that makes that happen. About the role This is a founding engineering role. You'll own entire systems end to end — the backend and...  ...AI/ML to frontend. About you ~5+ years of professional software engineering experience, with a track record of designing,... 
    Suggested
    Full time
    Live in

    Navi Ai

    San Francisco, CA
    10 hours ago
  •  ...Founding Software Engineer - TruTec About TruTec TruTec is an AI-powered construction takeoff platform that is revolutionizing a $17 billion industry . We automate the tedious, manual process of site measurement and material estimation—turning hours or days of... 
    Suggested
    Full time
    For contractors
    Internship

    Pear Vc

    San Francisco, CA
    10 hours ago
  •  ...Hybrid or Remote-First) Type: Full-Time, Founding Team Member Compensation:...  ...entrepreneurs, AI researchers, and early engineers from companies such as Meta, Palantir, Dropbox...  ...productivity. The Role As a Founding Software Engineer , you’ll report directly to... 
    Suggested
    Full time
    Remote work

    Espa Labs

    San Francisco, CA
    10 hours ago
  •  ...Founding Software Engineer Location: San Francisco (preferred) Type: Full-time · Founding Team About Bracket Bot Bracket Bot is building low-cost, general-purpose robots that developers can program and deploy in days. We’re transforming the world’s ~... 
    Suggested
    Full time

    Bracket Bot Inc.

    San Francisco, CA
    10 hours ago
  •  ...Mission At Navi, engineers don’t just write code — they shape the future of aviation. Our...  .... About You Strong background in software engineering (backend, distributed systems...  ...of reliability and clarity. As a founding engineer, your fingerprints will be on the... 
    Full time

    Navi Ai

    San Francisco, CA
    10 hours ago
  •  ...times, and received some of the highest honors in the microelectronics and EDA industries. About the role As a founding software engineer at Bronco AI, you will be building world-class intelligent reasoning systems for chip verification. You’ll own the product... 
    Full time
    Night shift

    Bronco Ai

    San Francisco, CA
    10 hours ago
  •  ...simple interface to the vast array of tools being released daily. About the Role We’re hiring three exceptional Founding Software Engineers to help us scale the computational biology platform that powers our drug discovery pipeline. In this role, you’ll... 
    Full time
    Relocation

    Tamarind Bio

    San Francisco, CA
    10 hours ago
  •  ...We are looking for a founding backend engineer with unusually strong engineering and design taste. The world’s most critical infrastructure—...  ...systems, applied to some of the most critical enterprise software in the world. Learn why we're excited about mainframe... 
    Full time
    H1b
    Visa sponsorship
    Work visa
    Relocation package

    Hypercubic

    San Francisco, CA
    10 hours ago
  •  ...Founding Software Engineer (Mid–Senior Level) Why Zania Every enterprise spends millions of dollars on Governance, Risk, and Compliance (GRC). It's one of the most critical, yet universally painful, parts of running a business. For decades, this industry has been dominated... 
    Full time
    Work at office
    Relocation package
    Flexible hours

    Zania

    San Francisco, CA
    10 hours ago
  • $150k - $200k

     ...Join to apply for the Founding Software Engineer role at Attune (YC X25) Join to apply for the Founding Software Engineer role at Attune (YC X25) Get AI-powered advice on this job and more exclusive features. This range is provided by Attune (YC X25). Your actual pay... 
    Full time

    Attune (YC X25)

    San Francisco, CA
    2 days ago
  •  ...personalized AI assistant that understands everything about you and automatically arranges your trip for you. We're looking for a founding engineer to join the our team of 3-4. You'll tackle everything from optimizing LLM performance and building evals to integrating APIs... 
    Work at office
    Remote work
    Work from home
    Flexible hours
    Night shift

    Stardrift

    San Francisco, CA
    10 hours ago
  • $90k - $120k

     ...Join to apply for the Founding Software Engineer role at Canvas AI (YC F24) Join to apply for the Founding Software Engineer role at Canvas AI (YC F24) This range is provided by Canvas AI (YC F24). Your actual pay will be based on your skills and experience — talk with... 
    Full time

    Canvas AI (YC F24)

    San Francisco, CA
    10 hours ago
  •  ...which is leading the charge in transforming observability for today's data-driven world is looking for seasoned software engineer to join them as a founding engineer. As the founding engineer you will lead the design and development of their Telemetry Data Management Platform... 
    Flexible hours

    Xcede

    San Francisco, CA
    10 hours ago
  •  ...We’re searching for a founding engineer(s) who brings a mix of rapid iteration, meticulous craftsmanship, and an eagerness to dive into the...  ...1-3 (or more) years of experience building professional software with a very high quality bar. Ideally, you have demonstrable... 

    Decipher

    San Francisco, CA
    10 hours ago
  • $200k - $300k

     ...Job Description for Founding Software Engineer This position is provided by DGC Search. Your actual compensation will depend on your skills and experience — consult with your recruiter for more details. Base pay range $200,000.00/yr - $300,000.00/yr Direct message the... 
    Full time

    DGC Search

    San Francisco, CA
    2 days ago
  • $150k - $300k

     ...Funded | Future Leaders Wanted About the Role: We are seeking a Founding AI Engineer to join our early-stage, high-growth AI startup. This...  ...interviewing at Goliath Partners by 2x Sign in to set job alerts for “Software Engineer” roles. Mountain View, CA $145,000.00-$170,000.00 1... 
    Full time
    Summer work
    Internship

    Goliath Partners LP

    San Francisco, CA
    10 hours ago
  • $130k - $170k

    Founding Engineer Join now to apply for the Founding Engineer role at Nowadays (YC S23) . Base pay range $130,000.00/yr - $170,000.00/yr About Nowadays Nowadays is the first AI platform for planning corporate events. Our AI can contact venues by email and phone to get... 
    Full time
    Work at office

    Nowadays (YC S23)

    San Francisco, CA
    1 day ago
  • $200k - $275k

     ...0,000.00/yr - $275,000.00/yr Managing Recruitment Consultant at Harnham US — Data, AI & Tech → Mid-West & South Atlantic Founding Software Engineer $200,000 to $275,000 + COMPANY A cutting-edge AI company is transforming creative strategy with AI-driven insights, leveraging... 
    Full time

    Harnham

    San Francisco, CA
    3 days ago
  •  ...our clients Location: San Francisco (On-sit) Experience: 2–8 years Stage: Seed → Series B Role Type: Early hire / founding engineer Why This Role Exists You’ll help build the core product from the ground up. This is a hands-on role for someone who loves... 
    Full time

    Weekday

    San Francisco, CA
    10 hours ago
  •  ...government puts out a firehose of data every day, outlining what they bought and the capabilities they want to buy. You will be our Founding Engineer for building the pipeline to make this data useful, as well as talking to our users to see what’s the best way to browse and... 
    Full time
    Contract work
    Work at office

    Usul

    San Francisco, CA
    10 hours ago
  • $2,000 per month

     ...pathologically unfair at worst. Our mission is to reimagine the world of data with you. About The Role As a Founding Principal Software Engineer , you will help build out the next generation data platform to support decentralized analytical and ML workloads,... 
    Full time

    Nextdata Technologies Inc

    San Francisco, CA
    10 hours ago
  • $100k - $150k

     ...Join to apply for the Founding Full Stack Engineer role at Text.ai (YC X25) 2 days ago Be among the first 25 applicants Join to apply for the Founding...  ...Engineering and Information Technology Industries Software Development Referrals increase your chances of interviewing... 
    Full time

    Text.ai (YC X25)

    San Francisco, CA
    2 days ago
  • $175k - $275k

     ...Carma is hiring a Founding Full‑Stack Engineer to own product surfaces end‑to‑end — from ambiguous problem statement to scoped design to shipped enterprise software. Work on a TypeScript end‑to‑end stack (React, NestJS, PostgreSQL + Prisma, AWS). Ship a feature in the... 
    Day shift

    CertifiedDevs

    San Francisco, CA
    10 hours ago
  • $150k - $220k

     ...Autonomy: Drive your own initiatives and influence the company’s technical direction. About the Role We’re seeking a full-stack engineer with hands-on experience in building and deploying LLM-based products from scratch. You should take pride in your work and write... 
    Full time
    Work at office

    Gigaml

    San Francisco, CA
    10 hours ago
  • $8,000 - $10,000 per month

     ...Join Hire Hangar and work with fast‑growing global companies while building a long‑term, remote career. Job Title: Founding Full‑Stack Engineer Location | On‑Site — San Francisco, CA Time Zone | PST Role Overview We are seeking a Founding Full‑Stack Engineer to join the... 
    Remote work

    Hire Hangar

    San Francisco, CA
    3 days ago
  • $120k - $200k

     ...truly understands you. Our team of designers, AI researchers, and engineers is crafting voice interfaces that are both useful and...  ...team at a deep tech startup with over 100M in funding. As a software engineer at Wispr, you'll build the software platform for the... 
    Full time
    Relocation
    Relocation package
    Flexible hours
    Day shift

    Wispr Flow

    San Francisco, CA
    10 hours ago
  •  ...experience in a high growth tech company You are AI-enabled and can clone your productivity with AI tools. Experience in full stack software development, with emphasis on using NodeJS, GraphQL, PostgreSQL, React, Typescript, and TailwindCSS. Strong understanding of ML... 
    Work experience placement

    Cromatic

    San Francisco, CA
    10 hours ago
  •  ..., and builders of everything from robots and race cars to software with millions of downloads . We’re backed by the founders...  ...half a century. Dryft is powering the next. THE ROLE As Founding Fullstack Engineer , you’ll be the brain behind Dryft’s decision intelligence... 
    Relocation

    Dryft

    San Francisco, CA
    1 day ago
  • $120k - $250k

    Overview Founding Full-Stack Engineer role at Floot (YC S25). Base pay range is provided; your actual pay will be based on skills and experience...  ...function Engineering and Information Technology Industries Software Development We’re unlocking community knowledge in a new way... 
    Full time

    Floot (YC S25)

    San Francisco, CA
    1 day ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Founding Software Engineer. Be the first to apply!