Bill He

Software Engineer at Phantom

San Francisco Bay Area

About

- Strong proficiency in full stack web development: Node, React, graphql/relay, MongoDB - Developed multiple web systems from end to end - Lead numerous projects through full development life cycle - Expertise in Firebase, Google Cloud, AWS - Motivated problem solver, can quickly understand and apply new technologies

Experience

  • Software Engineer at Phantom
    Jul 2025 - Present · 1 yr

  • Senior Software Engineer at dYdX
    Feb 2023 - Jan 2025 · 2 yrs

  • Senior Software Engineer at Twitter
    May 2018 - Jan 2023 · 4 yrs 9 mos

    - Web tech lead for various high impact projects such as Twitter Circle and Conversation Controls - Web tech lead for onboarding team, executing first time UI experiments resulting in +2.5% DAU - Experienced in mentoring and guiding growth in junior developers - Complete overhaul of Twitter video UI to be fully accessible using React to be more extensible and flexible - Deep understanding of the new Twitter webapp - the most used and advanced Progressive Web App - Contributed to the complete revamp of the new Twitter website

  • Software Engineer at Tenor
    Mar 2017 - Oct 2017 · 8 mos

    - Created and fully developed the Tenor Facebook messenger add-in/chat-bot, most used add-in for messenger, averaging over 3000+ concurrent users, 400,000+ daily shares - Complete redesign of the company website with heavy focus on SEO - Initiated and owned multiple products such as Tenor Branded Pages, and API Key registration

  • Software Engineer at Scalable Press
    Oct 2015 - Jun 2016 · 9 mos

    - Led development on new company products using Node, React, MongoDB - Sole Engineer responsible for creating scalable, fully automated poster printing process from scratch (3000+ prints daily)