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Charles Repetti
Charlie.AT.Sandpiper-Inc.com |
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Summary
Over fifteen years as a Product Developer. A consistent focus on customer satisfaction has resulted in long-term success.
Professional Experience
“Stealth-mode”
startup (2005-present) Involves the programming of a wireless embedded system,
including board design and building using the XCircuit and PCB open-source tools, the Cypress
wireless USB chipsets, and several microcontrollers still under
evaluation. Wire wrapped and
surface-mounted working prototypes have been completed using PCB Express as a board manufacturer.
Multiplexed strain gage sensors are also integrated into the design.
Texas Instruments, (2003–present)
Camper-Thermostat,
Green Lizard,
LLC,
mPower Advisors, LLC, San Francisco, CA (2000-2001) Financial advice for a large group of 401k participants using industry standard risk management techniques over the Internet (see Banker's Trust below). A "dot com" start-up which was eventually sold to Morningstar.
Voter-Guide.com (1999, 2002) - Intended as a demonstration system, in order to find work in the Internet field. Using a formal approach, a set of questions concerning the customers' opinion about political issues are raised. Then, using a Solver I built myself, the simultaneous optimal set of candidates whose collective answers most closely match those given is presented. Linux/DSL, J2EE with JSP's, and a SQL database were used.
Parity Software, Sausalito, CA (1997-1998) - Produced releases 5.x of "VoiceBocx" computer telephoney ActiveX product. New features included routing functions for multi-line switching within a PC, but most work revolved around fixing product defects. Produced a "VOS RLL", a software extension for routing voice calls over an ATM (Asynchronous Transfer Mode) network. The company was bought by the Intel Communications Fund and later sold to a group of private investors.
Metalithic
Systems, Inc.,
Bankers
Trust,
The second system was first used by all seventy of the Bank's proprietary traders. Eventually it was used in the Bank's training program, and by a sizable proportion of the Bank's entire staff.
Its inputs are a portfolio expressed as a Delta-Gamma-Theta-Vega "Equivalent" Position in one or more of a few hundred benchmark instruments, and the price/yield series for the benchmarks. The output is a leverage ratio, which is used to rank the traders for management scrutiny. Volatility, volatility of volatility, correlation, eigenvalue and eigenvector, as well as the "square root" (though Cholesky decomposition) of the correlation matrix are calculated and used to scale a stream of random numbers for a massive portfolio stress test. A precalculation is performed quarterly, when the market price/yield feed is refreshed. Then, the system load time is just a few seconds, and most portfolios are analyzed in under ten minutes (on the best PC's).
The Excel front end to the system, as well as all documentation, data maintenance and distribution of the system, was performed by in-house staff. The code is written in C++, as an Excel add-in, with an ODBC data interface.
AlliedSignal,
Inc.,
The system showed views of the database as updateable facsimiles of the actual forms which are required to be submitted to the Federal Election Commission, as well as facsimiles of the other required printouts.
MS C++/MFC 4.0, MS ODBC, MS Access and MS Excel are used to produce this functionality. Previous versions used Gupta's SQLBase, Lattice dBC, dBase III, and dBase II as database servers, and the then current versions of the Windows SDK for those years in which it was available.
BlueCross/BlueShield,
Manufacturer
Hanover,
Education
Continuing
Education
San José State
University (San José, California), 2004-present
Candidate for a Masters of Science,
Electrical Engineering
College of Marin
(Kentfield, California), 2005-2006
Supporting course work for MSEE in
Mathematics
San Francisco City
College (San Francisco, California), present
Supporting course work for MSEE in Physics
Courant Institute of Mathematical Sciences
Masters of Science, Computer Science, 1992
Sponsored by AT&T Computer Systems and the Association for Computing Machinery
Master's Thesis Research - "Building a MIDI Controller - A Laboratory Experiment". Performed in NYU's Supercomputing Laboratory. Designed and constructed a musical instrument. An array of Motorola 68HC11 microprocessors performed all analog to digital conversions on signals from an original keyboard design implemented with Magnetic Hall Effect Transducers. The input is arbitrated over a synchronous serial ring network, and output over a 31.25 kbps asynchronous serial ring network (Musical Instrument Digital Interface standard) for conventional tone generation.
Bachelor of Arts,
Philosophy, 1988