Welcome! I'm John an engineer and startup founder

I'm a full-stack engineer with product, marketing, and sales experience. I was the co-founder and CEO of interseller.io (acquired by Greenhouse 2021). I have been a CTO and founder two other times, and I was one of the first engineers at Compass Real Estate.

Currently building Gotta Go Fast an engineering and product studio.

Reach out to me if you're interested in working together!



  • Gotta Go Fast

    gottagofast.comCo-Founder - Mar 2021 - Present
    Embedded product engineers for startups that Gotta Go Fast. Work alongside the best startup engineers in the world.
    1. Help engineers get paid while having time to build their own companies
    2. Partner with great startups: Polywork, Realm Home, Just Salad
    3. Created first product, ViewSource
  • Humming Homes

    humminghomes.comCo-Founder & CTO - May 2020 - Feb 2021
    Humming Homes is a technology and a service that empowers homeowners. By taking on end-to-end home maintenance, we guarantee you can rest assured knowing that your greatest asset is taken care of.
    1. Worked with Kevin Ryan and AlleyCorp
    2. Hired first several engineers
    3. Built initial product and launched to 100 homeowners
  • Candid

    candidco.comDirector of Engineering - Jan 2019 - Apr 2020
    At Candid, we’ve always put your health first—and now we’re offering our revolutionary clear aligners with even more doctor-directed care. Your journey to a healthier, more beautiful smile
    1. Built Growth and Revenue teams
    2. Modernized engineering processes
  • Interseller

    interseller.ioCo-Founder & CEO - Sep 2016 - Aug 2018
    Interseller is an outbound automation tool for recruiting teams to easily connect with new talent
    1. Acquired by Greenhouse in September 2021
    2. Built marketing site, web app and chrome extension
    3. Raised money from Expa (Garret Camp)
  • Rex Labs, Inc.

    rex.isDirector of Engineering - Aug 2015 - Aug 2016
    A simple way to share recommendations with friends.
    1. Launched iOS app and became Apple's editor choice
    2. Hired initial engineering team
  • Compass

    compass.comSenior Software Engineer - Jun 2013 - Aug 2015
    Compass is a tech-enabled real estate brokerage helping everyone find their place in the world
    1. Launched first version of the agent app
    2. Led communication team building out features for agents
    3. Hired initial mobile team


  1. JavaScript
  2. Swift
  3. Next.js
  4. ExpressJS
  5. TypeScript
  6. React Native
  7. React
  8. GitHub Actions
  9. fastlane
  10. GraphQL
  11. Expo
  12. Phoenix Framework
  13. Django
  14. Sentry
  15. Segment
  16. SwiftUI
  17. Python
  18. PostgreSQL
  19. Prisma
  20. Fivetran
  21. Snowflake
  22. dbt
  23. Objective-C
  24. Elixir
  25. Rails
  26. Java
  27. AWS Fargate