Tommy Johnson
Founding Partner at Exo
Washington, District of Columbia, United States
Summary
👤
Senior🎓
Top SchoolTommy Johnson is a founding partner and seasoned engineer with a decade-plus of experience who has focused on building financial primitives and front-end tooling for the Solana ecosystem since 2020. He combines hands-on full-stack development with product and business leadership, having led multi-national teams and shipped both blockchain infrastructure and consumer-facing hospitality technology. At The Guestbook he architected a maintainable, cross-platform browser extension and a live rate crawler that enabled a small team to operate large-scale functionality. Earlier ventures include co-founding an AI-enabled recruiting marketplace where he implemented microservices, ML preprocessing, and custom real-time chat systems. Tommy’s open-source contributions include enhancements to Solana governance UI—adding treasury token handling and Serum trading support—demonstrating a practical focus on on-chain UX for token flows. Based in Washington, DC, he blends hardware roots in embedded systems with modern cloud and blockchain stacks to tackle product and system-design challenges end-to-end.
8 years of coding experience
7 years of employment as a software developer
Electrical Engineering, Electrical Engineering at University of MarylandNorthwest High School
Github Skills (12)
uid10
typescript10
javascript10
typescripts10
front-end-development10
ui-design10
solana10
react10
typescript-types10
walletconnect9
wallet9
nextjs9
Programming languages (7)
Github contributions (5)
solana-labs/governance-ui
Mar 2022 - Jan 2023
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:13 commits, 16 PRs, 19 comments in 9 months
Contributions summary:Tommy primarily focused on front-end development within the Solana governance UI. Their contributions included adding features for handling treasury tokens, specifically SOL and SPL token accounts. They implemented UI components for displaying and sending tokens, including creating a generic send modal. The user also made improvements to existing features by refining the UI, fixing bugs, and addressing linting issues. Additionally, the user added support for trading with Serum.
mithraiclabs/governance-ui
Mar 2022 - Oct 2023
Contributions:83 pushes, 21 branches in 1 year 7 months
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