Professional Biography.

I work with CEOs and boards to build strong teams that ship products people love.

I lead Engineering, CTO, CISO, AI/ML, and Data functions and… sometimes… Product, Design/UX, IT, and parts of GRC, too.

Hands-on through fundraises, acquisitions, mergers, and liquidity events in 6 of 7 roles.

Still write code, mentor architects and PMs, and participate in tech and product reviews.

Firsts

  • Consumer-friendly software for the first neural-net-powered email and edge network security appliance, 2003.
  • Production deployment of Node + isomorphic JS at 100M+ DAU scale, 2013.
  • ML content personalization at billion-user scale, 2014.
  • First NFL game streamed live in HD to 15M+ viewers worldwide, across web and mobile, 2015.
  • NLP assistants in production; ML on EHR over FHIR, 2017.

Scale

  • Introduced real-time streaming quotes to the world's #1 finance site and app — and to Apple's native Stocks app and Siri.
  • Commerce to $25 billion, growing 91% in a year.
  • Fintech transaction processing from thousands of dollars to billions in a quarter — risk and yield optimized across a network of sponsor banks.
  • Engineering teams from 7 to 1,000: local, remote, global, hybrid.

Trust

  • Reported to the CEO, with direct board and investor engagement, last three companies.
  • App and routing infrastructure in the primary purchase path of Amazon, Uber, and Target.
  • Architected multiple systems with direct access to consumer bank and brokerage accounts — portfolio management and fund movement.
  • SOC 2 programs built at three companies; zero security incidents.
  • Core team on every fundraise; led technical diligence on every deal since 2018.
Work History
2025 —
Plausible Industries
Founder & CEO

AI-first product & technology studio. Building and advising in domains including healthcare, wellness, cinematics, and agentic assistants.

2023 – 25
Button
SVP, Engineering · CTO + CISO responsibility, Chief Science Officer as direct report

Shipped contextual retail-media and creator products and the company's first iOS app. Redesigned infrastructure, software, and operations to enable deals with Amazon, Target, and Uber; introduced ML and generative AI to improve core product performance and scalability. $25B all-time commerce, +91% YoY; one of three who negotiated the PSG recapitalization.

2021 – 23
Affinity
VP, Engineering · CTO + CISO as direct reports

Introduced mobile, data science, and ML practices; team 4× to ~90; revenue 2×; closed an $80M Series C. Migrated from an end-of-life third-party Postgres service to a horizontally scalable, AWS-native implementation fed by ML pipelines on Delta Lake / Databricks. Expanded the firmographic, demographic, and relationship graph by billions of items; improved its quality, breadth, and depth.

2018 – 21
EarnUp
VP, Engineering · CTO + CISO responsibility

Carved out Western Union's mortgage payment business and reimplemented it within EarnUp; scaled systems and team to support single-quarter growth of 100× customers and transaction processing from thousands to billions of dollars. Built ledgering and KYC/AML compliance, and optimized risk and yield through dynamic account creation, maintenance, and fund movement across a network of sponsor banks via API, ACH, and real-time bill-pay gateways. $25M Series B.

2017 – 18
ASAPP
VP, Engineering · Head of West Coast

Recruited NLP and ML teams, started the data team; incubated an AI healthcare platform (ML on EHR over FHIR) and iOS app; opened the West Coast office.

2015 – 17
Yahoo
VP, Engineering

1B users, $1.7B revenue. Ran the core consumer platforms and experiences: frameworks, infrastructure, content sites, search bar. Replatformed Yahoo's flagship websites (new OS, new code) and rebuilt its #1 mobile apps.

2013 – 15
Yahoo
Senior Director, Engineering

Worked with the CEO, alongside product and design partners, to redesign and relaunch the world's #1 website. Led the company-wide engineering effort to build, test, and ship; presented status regularly at company all-hands. Launched live on national television and exceeded all user engagement and revenue targets. Received the company's top internal 'Superstar' award.

2010 – 12
Yahoo Finance
Director of Engineering

Cut release cycles from months to twice-weekly at the world's #1 finance site: a $200M business, 80M+ monthly users, more traffic than its key competitors combined. Shipped realtime stock quotes and its first native mobile app, featured by Apple. Plus the last two quarters running PM and Design.

2005 – 10
Yahoo Small Business
Senior Engineering Manager

Prototyped, architected, and led development of the first browser-based WYSIWYG website builder; 1M+ subscribers, $100M revenue. Received the company's top internal 'Superstar' award.

2004 – 05
Tumbleweed Communications (Corvigo)
Sr. Software Engineer · UI Architect

Built the award-winning admin and end-user systems for the self-clustering, neural-net-powered email and edge network security appliance.

PocketMail
Director of Engineering

Owned the mail backend and infrastructure behind the world's first mobile email device. Built webmail, mobile apps (WAP, Palm, embedded), account, billing, and customer care from the ground up, PM and UX included. Worked with hardware engineering through device manufacture.

Microsoft (WebTV)
Software Developer

Built customer-support tools and systems for a mass-market internet set-top box.

SunTREC (UC Davis)
Director, Web Application Development

Fileshare and private-messaging collaboration for the DoD and State Department; first large-scale online voting, 1998.