David Crescent Email & Phone Number

Mclean, Virginia

Bethesda, Md

Scaled a prototype metadata collector to millions of transactions per minute while keeping the user interface responsive, enabling the product to be commercially viable.Removed all single points of failure from the metadata collector to ensure high availability.Designed and developed threat detection that automatically ingests the latest security intelligence, queries collected metadata, then alerts users of malicious activity on their network.Enhanced the above to allow users to specify their own or third-party sources of malicious indicators and apply filters to increase detection accuracy.Enhanced a range of other Fidelis products, focusing on MySQL and Vertica database interaction and management primarily using SQL , C/C++, and Python.Wrote specifications and documentation.Interviewed and mentor other developers, including code reviews.Adhered to strict security standards.

Developed and maintained the C++ engine for Analytics-On-Demand that modeled financial securities using complex collateral projections based on standardized data:Enhanced the proprietary scripting language for payments according to strict industry standards Customized amortization routines for various collateral typesHandled script for unique collateral processingVastly increased the complexity of the mathematical models and accepted assumptions Handled single scalar values, indexed arrays, or multiple arrays in order to specify exchange rates, prepayments, defaults, index rates, counterparty defaults, and other assumptionsManaged and mentored other developers, including code reviews and regular use of ValgrindExtensive optimizationWrote release notes and product documentationEnhanced IDE using Microsoft Foundation Classes (MFC) with a custom debugger that allows breakpoints and stepping through the scriptMaintained and enhanced web application front-end that adheres to a Model-View-Controller architecture using Java 2 Platform, Enterprise Edition (J2EE) with extensive use of Beans, Java Server Pages and Remote Method Invocation (RMI) to off load intensive processing to a cluster

Developed Java client-server program for Dr. John Duffy of The Department of Economics, University of Pittsburgh to test elements of Game Theory for published researchConstructed an abstract syntax tree and wrote multiple programs in Java to simplify the proof of the Kepler Conjecture for Dr. Tom Hales of the Department of Mathematics, University of Pittsburgh Provided documentation and validation of the above proof for publicationManaged web administration using Perl and MySQL on FreeBSD for Dr. HalesAutomated data processing using Visual Basic for Dr. David Schwartzmann of the Electro-Physiology Division of the Cardiology Department at Presbyterian Hospital Wrote user programs in C for Adam Fineman and Manas Saksena of Linux Division of TimeSys Corporation to test performance and reliability of a kernel based on Linux to ensure high priority processes will gain access to the processor within strict time constraintsWrote and modified data processing routines in C and Fortran for Dr. Jim Mueller of the Department of Physics and Astronomy, University of Pittsburgh to analyze proton-electron collisions in search of the eta particle