Joe Sepi is a technologist

A software engineer who bridges technical execution and organizational alignment for impact among developer communities.

AI and Agentic Platforms

  • Leading work on Agentic AI platform strategy and implementation, advancing open, interoperable agent frameworks.
  • Served as time series domain expert for IBM’s Granite Foundation Models team.
  • One of the driving forces behind open-sourcing the InstructLab project, enabling community-driven model instruction and governance.

Open Source Contributor & Ecosystem Stewardship

  • 15+ years contributing to open source in cloud native, JavaScript, and Node.js communities.
  • Among the architects who merged the Node.js Foundation and JS Foundation to form the OpenJS Foundation.
  • Board Director (community-elected) and Chair of the Cross Project Council (technical steering committee) at OpenJS.
  • Active collaborator across major projects including Node.js, Express, LoopBack, Node-RED, and ESLint.
  • Oversees $350K+ in annual foundation membership revenue, aligning technical priorities with sustainable funding models.

Security, Compliance & Policy Leadership

  • Founded and co-leads the Security Collaboration Space at OpenJS, coordinating ecosystem-wide responses to supply chain risk.
  • Developed security and compliance guidance for JavaScript projects aligned with SBOM, CRA, and other emerging standards.
  • Partnered with corporate CISO teams to align open source practices with enterprise security postures.
  • Frequently called into critical vulnerability response efforts for the broader JavaScript ecosystem.

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Joe Sepi is a musician

Playing in bands since he was 15, Joe has moved all around the country chasing musical adventures. His first band’s release was produced by Built to Spill’s Doug Martsch and his recent release features friends from Silkworm, Chevelle, Wrong War, and even Lil Bub’s human. While he’s been in many bands you’ve likely never heard of, the only constants in this journey of sound have been Joe’s heart-on-sleeve voice, magic rocket guitar, and change.

His new band, Discount Fireworks, is about to blow up. LOOK OUT! 💥
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Please enjoy this Youtube playlist of songs from Joe Sepi's many musical adventures: