I occasionally help founders and CEOs be better leaders. Sometimes, I help them feel seen and feel less alone, or find new perspective, or learn a new leadership skill, or get tactical on a specific business problem.If you are interested in working with me, please find someone I know to introduce us.

Sift is the leader in Digital Trust & Safety. We protect you from bad actors (chargebacks, fake accounts, spam, account takeover, etc.) and help you reduce friction and grow revenue. Our customers include LinkedIn, Twitter, Airbnb, Match.com, Wayfair, OpenTable, Indeed.com, Yelp, and other leading retailers, financial services, marketplaces, and content sites.We've raised $205M+ from amazing investors, including Y Combinator, Max Levchin, Marc Benioff, Rich Barton, First Round Capital, Union Square Ventures, Spark Capital, Insight Venture Partners, and Stripes Group.It takes an afternoon to integrate -- try it at https://sift.com

Local business sentiment analysis. Acquired by IAC (Match.com, Vimeo, Citysearch etc.) in April of 2011.

First engineer at a VC-backed startup. Built a real-time B2B online marketing product to track SEO, lead conversion, and social media. Responsible for several core systems: pageview and form tracking across millions of visits to customer sites, keyword tracking, lead intelligence, user and account management. Actively involved in recruitment of other early employees.

* Broker feeds, a scalable system for automatically processing feeds of property listings and uploading them to our site. this effort grew Zillow's inventory of for-sale listings from 200k to the current 3+ million in less than a year, and was the driving force behind achieving a company-wide goal of one million listings by March '07* Second-generation map & search page (35% of all pageviews)* Iteration of the home page with personalization (20% of all pageviews)* Led a cross-industry effort with Trulia, Yahoo, Google, and other real estate players to design a unified XML schema for property listings. * Image upload, complex emails, home details page, postings* Became a domain expert and go-to guy for quickly debugging and advising on critical live-site problems* Actively involved in recruiting, mentoring new hires/interns, organizing and leading company cultural events. attempted an amateur rap career by writing lyrics about our products and performing at launch parties.

Phantom Works R&D division, Intelligent Graphics group.Designed and implemented OCR algorithms (C++) to intelligently recognize airplane wire diagrams.