Justin Bean

Hands-on Technical Leader for Seed to Series B Startups

I am a fractional CTO at my company, Subatomic Agency, whose mission is to optimize founders’ superpowers and build world-changing products alongside them. My work has generated millions in revenue & funding for dozens of companies.

I have helped founders raise capital from and be ready to close deals with companies such as: Google Ventures, Apple, ServPro, Snap, Bayer, Cedars-Sinai and Johnson & Johnson to name a few.

Justin Bean



  • Elly


    Co-founder and Chief Technology Officer

    Dec 2019 - Present

    • Built an Elixir JSONApi compliant API with robust content management backend • Sourced, vetted and hired staff for iOS development, backend team, design and product • Led the architecture and technical decision making on the Elly system design • Implemented and maintained HIPAA compliancy within software and infrastructure

    • After a 3+ year consulting arrangement, the company decided to grant me equity and offer me a role as co-founder and CTO.
  • Subatomic Agency

    Subatomic Agency

    Founder and Chief Executive Officer and Chief Free Electron

    Dec 2018 - Present

    I founded Subatomic Agency as an avenue for my fractional CTO work over the last 5+ years. I have helped startups with the following: ⚛️ Fractional Technical and Product Leadership ⚛️ Software Engineering ⚛️ Product Development ⚛️ Information Security and Devops ⚛️ Go-to Market Strategies ⚛️ Candidate Vetting and Hiring

    • Built a $1M business in three years from a personal consulting practice.
  • ConsenSys


    Lead Elixir Engineer at Codefund

    Mar 2018 - Oct 2018

    • Designed and built a highly reliable and scalable web advertisement system in Elixir that generates 5 million impressions a month on average • Brought test coverage up from 15% to 80% in around two months and improved speed of CI/CD in Travis by 20% • Optimized large impressions database using materialized views for faster reporting • Built a Google Analytics reporting system that allows for real time geospatial impression tracking and campaign metrics

    • Led the development and community contributions around an open source project
  • Roster


    Director of Engineering and Technical Cofounder

    Mar 2017 - Dec 2017

    • Led the overall technical vision for roster's product line and contributed heavily to overall business strategy • Scaled department to a total size of four • Led delivery of a production iOS application in three months that was revenue generating • Designed a distributed Elixir application architecture built for long term scalability • Implemented and ran an Agile process composed from elements of XP and Scrumban

    • Built a new product and team to expand on from what we learned at Useful Systems.
  • Useful


    Director of Engineering

    Dec 2016 - Feb 2017

    • Led company through a product strategy change and acquisition by ServPro in 2017 (eventually became roster technologies) • Represented technical leadership externally facing to investors • Built a CQRS platform which allowed work order changes to be completed on mobile app during low-connectivity periods and synced to API when back online • Served as lead architect and author in charge of rewriting API layer using Elixir, AMQP, InfluxDB and PostGreSQL • Implemented event sourcing using InfluxDB • Extended legacy API written in Node, MongoDB and Ruby and retroactively wrote tests

    • I was hired as a staff engineer here and eventually grew into the CTO role.
  • Hobbydb


    Software Engineer

    May 2015 - Jan 2016

    • Optimized slow running code by reducing object enumerable actions by tuning queries to a complex PostgreSQL database with JSONB array columns • Maintained and improved a highly decoupled Rails application utilizing Engines to promote separation of concerns • Migrated platform from Heroku to AWS using CloudFormation, Elastic Beanstalk and RDS • Collaborated in an "extreme programming" engineering culture, which included full time pair programming directly with CTO and strict test driven development

    • Participated in TechStars 2015 Boulder class
  • Gloo


    Senior Rails Developer

    Jan 2014 - Aug 2014

    • Contributed heavily to vision and codebase for next generation architecture, moving from monolithic Rails application to system of single purpose applications • Acted as team lead on v2 API development • Maintained and added features to Ruby on Rails based API and content management system • Mentored and trained junior developers to help individuals and department meet objectives • Prototyped platform components in Ruby/Sinatra and Go.

    • Mentored students at Galvanize coding academy.
  • Dom & Tom

    Dom & Tom

    Web Developer

    Apr 2013 - Dec 2013

    • Worked as lead developer on a variety of PHP, jQuery and Backbone projects • Created and maintained API that provided product recommendations and social networking functionality for a mobile application • Developed a number of customer facing Facebook web applications for Tyson, which heavily leveraged AJAX, jQuery and Canvas

    • Became domain expert on Laravel 4 internally when company was mostly using older frameworks.
  • Hyatt Hotels Corporation

    Hyatt Hotels Corporation

    Ecommerce Specialist

    Jul 2010 - Jun 2011

    • Managed website content for domestic and international website properties using enterprise content management system. • Designed and maintained HTML/CSS hard-coded minisites. • Collected and analyzed email marketing metrics for international email marketing campaigns.

    • Developed automation processes for image creation and styling to match brand standards.
  • Acco Brands

    Acco Brands

    E-commerce Data Specialist

    Mar 2008 - Dec 2009

    • Managed and monitored content of ACCO websites and product display on clients’ sites • Advised and coordinated on-going web and email promotions from business unit and enterprise level • Controlled creative and web project flow with multiple out of house vendors • Designed graphical content to be displayed on ACCO and client sites • Collaborated on promotion plans with business unit marketing leaders to successfully improve revenue

    • Built the basis for a direct to consumer store for the ACCO brands portfolio.

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