Currently on assignment to Bloomberg LP, midtown Manhattan.Porting legacy news feeds from Solaris to Linux operating system.

Member of the board of directors, for Unigroup of New York, Inc. Unigroup is the oldest and largest Unix User's Group (Unix/Linux/BSD) serving the Greater New York City Regional Area since the early 1980s.Unigroup is a not-for-profit, vendor and platform neutral, member funded, volunteer organization. Unigroup holds regular and special event meetings throughout the year on technical topics relating to Unix and the Unix User Community.Unigroup presentations cover topics relating to both Unix and Unix-like Operating Systems (Unix/Linux/BSD), as well as other related technologies including Computers, Communications, Cryptography, Internet, Networking, Security, Storage, Software Development, Web Development, Systems Administration, Free Software, Open Source and Software Tools.

Maintained and enhanced NYSE XDP proprietary data feeds, added new features to facilities to monitor the performance/latency of the XDP products. Supported NYSE Trade Reporting Facility (TRF). TRF accepts trades from outside firms, and reports these trades to the Financial Industry Regulation Authority (FINRA), and to the Nasdaq Systems Infomation Processor (SIP) and National Market Systems (NMS) tickers for distribution. Engineered the replacement of external servers that had sent data to the public tickers. Implemented new Market Data Process (MDP) into TRF implementing new binary protocols which replacing legacy ascii messaging to communicate with the Nasdaq SIP, and NMS CTS systems.Added XDP Trades functionality to the TRF Market Data Process.

Independent Software ContractorClients have included major telecomunications equipment manufacturers, medical equipment, and financial services firms. Including SIAC, NYSE EuroNext, Interconternental Exchange, Siemens Business Networks (DataBit), G-Tech, Genesis Infomation Systems, and SpaceLabs.,

Implemented custom high resolution image display system based on single board computer running Fedora Linux.Images displayed were controlled using radio frequency remote control, with receiver driving inputs on General Purpose Input Output lines (GPIO). Wrote drivers to read to provide application devices to read input from GPIO. A Samsung bh1721 light sensor was installed on the I2C bus, and I ported an Android driver using this chip, to measure ambient lighting. The driver was customized so that the voltage being applied display port adapter was modified based on a square wave signal applied to one of the GPIO output lines.

Universal Trading Platform (UTP) Market Data Publisher, update Enhanced UTP Market Data Publisher (MDP) enhanced to directly publish quotes and trades to Nasdaq SIP and SIAC NMS systems, using legacy ASCII protocols to communicate, later these were converted to the current binary protocols now supported by NMSWas part of the edge systems team implementing NYSE customer facing gateways. Implemented the NYSE Direct protocol a low latency binary protocol for order entry.Created new gateway type DMM Gateway (DMMGW), which implemented existing Specialist Application Protocol Interface (SAPI). SAPI functionality allowed specialist firms to provide custom code, and and parameters, to control and automate various trading functions. DMMGW was necessary to provide seamless transition from Display Book (DBK) Matching engine to UTP Matching engines.Was part of team implementing NYSE customer facing gateways. Implemented the NYSE Direct protocol a low latency binary protocol for order entry.

Participated in NYSE 3DTF project, an interactive 3D visualization of the NYSE trading floor. The 3DTF system collected and displayed market data, trading system status, video, ticker information in real-time.As part of the SIAC New Technologies group, was responsible for investigation and prototyping various products and technologies.Converted communications subsystem (CSSD) to permit direct communications between Tandem systems and DBK, using TCP/IP protocols.Designed and implemented the “Management Toolkit” (Mt), a library providing a standardized set of instruments for command and control of systems on a process level. The Mt and CSSD were utilized in both the DBK and Broker Booth Support Systems (BBSS).Implemented BBSS printer spooler subsystem, for printing broker orders on trading floor. The integrity of the messages was guaranteed by SNMP quires to the terminal servers supporting printers.Implemented original version CSSD, for DBK, utilizing OSI protocols to communicate with X.25 gateways. Ran vendor evaluation testing, to evaluate UNIX platforms for DBK.Participated in conversion of DBK communications from point to point X.25 connectivity to ethernet connectivity using Intel's OSI stack to communicate between the DBK processors and an in house built X.25/ethernet gateway.Implemented IBM Bisync protocols on Metacomp Multibus single board computer to create gateway where each device on Bisync line was assigned an X.25 address that was accessible from IBM mainframes.