Objective

Highlights

• Designed and implemented Searchme's production vertical search indexing subsystem - handling millions of user searches and 10's of billions of document updates per month.
• Maintained and advanced web log data mining system capable of complex real-time traffic queries on data sets as large as 80 million unique users traversing 650 million URLs. Designed and implemented general purpose data mine system with pre-aggregative approach applied to schema derived (hence flexible) relational models (utilizing pre Y2K hardware)
• Maintained and advanced program trading systems central to the most active institutional trading desks. One system managed a desk on the NYSE executing up to 20% of the exchanges total daily volume
• Successfully adapted legacy chemical instrument analysis package for rapid product enhancement, saving market share and brand presence at customers' laboratories. This success, completed prior to the final (OEM) hardware selection, permitting ample time for further software enhancement prior to product release
• Advanced state of the art in CAPTCHA visual challenge with contextual innovation

Summary of Qualifications

• Decades designing and developing software, including tools and servers for scientific, business, web services, and consumer applications on Linux, Windows, and Macintosh platforms
• Valuable organizational and interpersonal skills necessary for strategic teamwork and consumer interaction
• Creative approaches and innovative methodologies from design and analysis through implementation of systems
• Practical, yet visionary, attending to details while realizing the goal of successful completion
• Broad background in computer science, physical sciences, mathematics, and engineering for everything from chemistry experiments to financial instruments, Photoshop graphics to advanced data retrieval and analytics systems.

Skills

• Modeling, analytics, machine/experiment simulation and control, adaptive/automated programming, symbolic/linear mathematics, data visualization, statistics, multi-threaded programming, distributed services, advanced algorithms, information retrieval, real-time and embedded systems
• Primarily Unix BSD/Linux/Solaris programming, experienced on both MacOS, and Windows systems
• OOD/OOP,  gcc, dbx, Oracle, MySQL, STL, boost, C/C++, Java, Pascal, Fortran, assembly, perl, python, php, shell
• LAMP, Apache,  HTTP/HTML, XML

Experience

• Sustain and advance search functionality on eBay, the largest and most diverse marketplace on earth.
• Develop algorithms, datastructures, and systems to evaluate logistic features for reporting, recalling and ranking items in a realtime search environment.
• Advance algorithms and analytic tools that support grid computation for a large scale internet marketplace.

• Designed and developed distributed budget service for multi-server high volume advertisement optimization service(AdOpt).
• Utilized Oracle Template Library(OTL) and database such that business logic, and data structure are entirely abstract and leveraged to support AdOpt service.

• Invented and developed novel highly compressed direct access index for terms, concepts, or other document related features
• Designed and currently developing compressed key mapping table
• Designed incremental and self-optimizing method of quickly updating, adding, and deleting content from fixed indexes on a live search engine
• Successively increased document count given fixed resources while expanding document features and improving accuracy