John MacMenamin

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Director of Product Design, AI Labs & Head of Design Systems, Zeta Global

hellojohnnymac@gmail.com · johnmacmenamin.com

20 years leading UX and product design teams across diverse sectors. KPI-driven playbooks that accelerate design, unblock engineering, and drive innovation in fast-growing startups. Proven track record in B2B enterprise SaaS, with the business fluency to communicate design's value to stakeholders and the craft to stay hands-on.

Experience

Director of Product Design, AI Labs · Zeta Global

2025-

Head of Design Systems · in partnership with OpenAI

  • {{TODO: John — 3-4 bullets for the Zeta Global role}}

Head of Design · Inworld AI

2023-2025

Gen AI character and voice platform · Microsoft and Nvidia partners

  • Designed 30 product features including Multi-Agent Chat, AI Fine-Tuning, and Narrative Graph.
  • Led design and development collaboration with the Microsoft team for an AI-driven app/game at GDC24.
  • Established and recruited three design pillars: Product Design, UX Research, and Design Systems.
  • Delivered a UXR program handbook saving 39% in testing costs while improving CSAT by 23%.

Design Architect · Meta Platforms (Facebook)

2021-2023

Family of Apps: Facebook, Instagram, WhatsApp, Workplace

  • Drove the V2 design system to 80% adoption, saving 1.73 million lines of code.
  • Led the 0-to-1 "Lightweight Groups" concept that was picked up and became Meta Threads.
  • Led the Messenger-to-Facebook-Web reintroduction, boosting revenue per visitor by 1.9% across 3.5B users.
  • Coordinated on the Architects Counsel to align cross-functional roadmaps; accelerated delivery from 6 to 2 months.
  • Won the Facebook Design rebrand and deployed the new identity at the Facebook Design Summit.

Founder · Pegasus Product Design, LLC

2020-2023

pegasusdesignsystem.com

  • Created the #1 trending Figma design system (a FigPick by the Figma core team), used by 80K+ people.
  • Honed an 80%-rule system serving diverse global users; scaled to the LowFlow wireframe library with four releases in a year.
  • Led Friends of Figma meetups in Kyiv and Sri Lanka on multi-brand design systems.

Director of UX, then Head of Product Design (VP) · Block.one

2018-2020

EOSIO blockchain ecosystem · Bullish exchange and the Voice social platform

  • Fifth employee; helped scale global recruiting from 5 to 400, partnering with HR, the CTO, and the CEO.
  • Built a coded component design system and established an Innovation Lab that guided Voice and Bullish from gated testing to scaled launches.
  • Led PM/UX strategy for the 200M ARR Bullish.com trading experience with teams in Hong Kong and Singapore.
  • Raised the design system Lighthouse accessibility score from 13% to 100% (WCAG 2.1).
  • Delivered 4 products and 2 site redesigns across 3 concurrent work streams.

Principal UX Designer · AIG

2016-2018

FinTech investments and healthcare (VALIC)

  • Created a 30-component React design system on atomic principles, reducing the engineering roadmap by 27%.
  • Lifted completion rate 23% with a platform suggesting specific local availability.
  • Reached WCAG 2.1 compliance across multiple properties, driving a 9% traffic increase.

Lead Product Designer · SalesStaff, LLC

2016

B2B demand generation platform

  • Designed a signup application that increased customer onboarding by over 80%.
  • Reduced sales legal redlines by 80% with an internal sales app launched in three months.
  • Spearheaded an internal product agency saving 27% over outside agencies.

Senior UI/UX Engineer · WM (Waste Management)

2012-2016

Logistics and recycling

  • Designed 36 machine-learning modules, increasing new-user signups by 52%.
  • Unified five apps into one customer-service portal, cutting search time from 20 seconds to 1.
  • Managed and optimized WM.com (2M page impressions per month) and 500+ domains.

Founder · Altered Studio

2006-2012

Creative design agency

  • Delivered brand identity, product design, and conversion work for clients including 3M, Nida-Core, and LexisNexis.

Education, awards, speaking

  • Indian River State College · Computer Science / Graphic Design
  • Project Management Professional training (PMTI)
  • Winner, Facebook Design Brand Identity Competition
  • Two Webby Awards (Bullish marketing campaign; WOL character with 8th Wall / Inworld AI)
  • Speaker: EOSIO Global Hackathon (Hong Kong, Australia, London), Virginia Tech Women in Tech, GDC24