· Principal engineer of cloud storage platform for Memories (photo cloud backup system implementing microservices architecture on AWS).

· Built “Criteria Segmentation” system for Customer Engagement Platform, integrating disparate databases with Facebook's PrestoDB SQL engine to target customers classified by various attributes. Data sources included Postgresql, MySQL, DynamoDB, and Neo4j. A web frontend (jQuery QueryBuilder) allowed ad-hoc construction of criteria.

· Experimented with convolutional neural networks to identify both aesthetic photos and photos with technical flaws; initially using idealo’s image-quality-assessment on github, based on Google NIMA.

· Redesigned and moved "Telemetry & Analytics Platform" from Azure-based C# application to Java services deployed in AWS, and migrated data from Azure Tables to DynamoDB.

· Lead engineering teams as tech lead for journey teams and projects with major clients including Docomo, Verizon, and AT&T.

Defined hardware & software for all levels of Wells Fargo Internet Services (3,000 staff division). Provide architectural direction for public web site, on-line banking, single sign-on systems, fraud prevention services, and marketing applications:

· SAML 2.0 (external federation) from proof of concept to implementation

· Architected high-availability as required

· Single-Sign-On architecture

· Targeted advertising platforms (Omniture integration and Epiphany application)

· Reference architecture for Side-by-side deployment (dual deployment)

Validated architecture, identified & fixed Java & J2EE container issues, and developed deployment architecture. Implemented major infrastructure projects: migrating C++ banking application to WebLogic, Single Sign-on with SAML 1.1 (Sun Access Manager), and JVM tuning. Wrote proxy framework for WWW server side applications to connect to third parties

Implemented a workflow automation system for the Internet Learning Solutions Group.