Principal Group Engineering Manager, serving the 4 teams that make up Yammer's Infrastructure: Compute, Storage, Telemetry & SecurityAlso previously manager of the San Francisco Core Services team, creating high throughput, low latency services that power Yammer.

Co-founded Paper Culture, an online retailer delivering a 100% eco-friendly product lineup of personalized holiday cards, birth announcements, invitations, stationery, and wall art.Highlights: Hit profitability in 2 years (Holiday 2010); coverage in The Wall Street Journal, Real Simple, Parenting, People & more; 132,000+ Facebook fans; planted 100,000+ trees as part of our Million Tree Pledge.• Created a robust e-commerce platform for personalized products, coupled with services where a professional designer reviews & edits every order• Architected the cloud design, print & CRM platform that powers our services. Highlights: Adobe plugins for designers to automatically create & publish products; HTML5 personalization tool for customers; real-time print engine to create images and PDFs; platform for designers to resume & edit proofs automatically in Adobe tools; large custom CRM integration with Salesforce• Created partner integrations with Snapfish, Giggle & fulfillers; created an automated Mail & Message service, where we will address, mail & include a message on each card• Created a print-quality photo cloud platform that stores customer photos, with services to scale, crop, rotate, colorize & more

Omniture acquired Offermatica in late 2007 and was acquired by Adobe in 2009. The Offermatica SaaS product lives on as the market leader and is now called Adobe Test & Target.

A founding and principal architect of the Offermatica product, a SaaS targeting, testing & optimization tool. Serves over 200 clients including some of most recognized global brands including CNET, The Financial Times, Siemens, Accenture, McAfee, Skype, Verisign, Intuit, ESPN, and Monster.comIdea based on a product I created for Best Buy. Created core architecture and platform from the ground up, as well as build environments and software development processes for a global engineering team.• Created an architecture that supports billions of transactions per week (all profile backed, not static); among the highest volume and highest performance Java applications• Best of breed architecture makes use of non-blocking algorithms, caching, buffering, async processing and thread executor pools to leverage multi-cpu/core hardware• Designed and built an “Edge” cloud computing architecture to run the application geographically close to end users. Global app delivery runs in multiple data centers in the US and abroad.• Implemented core targeting and testing (multivariate and A/B testing) features and a product recommendations engine.• Grew a formidable global engineering team.

Projects include:• Best Buy - Technical Lead, Marketing Control Center, an optimization and targeting platform• Nike - Technical Lead, Nike.com Online store• Martha Stewart - Developer, Online store• Fleet Securities - Technical Lead, mutual fund trading system• Kaplan - Developer, test prep commerce site

Technical lead for an optimization and targeting tool for Best Buy called Marketing Control Center. Designed as a marketer friendly web application, allowing them to create and test marketing campaigns and target products. Precursor to the new Optimization, Targeting and Testing market that Offermatica came to lead.

Worked with team to re-implement existing C++/CORBA-based online white-label trading systems and back-end administrative application onto a J2EE platform on BEA Weblogic. In addition to Quick & Reilly, system supports over 30 client institutions. Integration with multiple legacy systems, including ADP for trade processing.Personally developed mutual fund trading white label application, the first implementor of the new ADP mutual fund trading API based on IBM MQ with XML messaging (MFRS).

Technical lead on a re-implementation of the Nike.com online store from InterShop to ATG Dynamo 5.0.• First ATG Dynamo 5 commercial implementation. Worked closely with ATG to identify and fix bugs in the Dynamo 5.0 Beta• Responsible for design, implementation, testing and deployment of the Nike catalog. Led Nike catalog development team.

Developer and a de-facto technical lead for the Kaplan test prep e-commerce site, kaptest.com