Lawrence D. Lopez, Contract Programmer, September 8, 2004
Lawrence D. Lopez
PO Box 370
New Boston, NH 03070

Phone 603 487 2807

Email: lopez@mv.mv.com
Web: http://www.mv.com/users/lopez
Areas in which I am an Expert:
Ports of kernels and applications
Unix internals, Unix system calls, Unix drivers
Unix System Administration
Real-time Unix based embedded software
Device drivers, kernels enhancement and maintenance
Telephony, PBX, call signaling, T1/E1 spans, ISDN/RBS
CVS, bash, sh, csh, ksh, Tcl/Expect
C/C++ language
TCP/IP/UDP/VOIP/RTP protocols. RTP is for VOIP.
RS 232/422, SCSI, Ethernet, ISA, PCI, VME, EXORMACS
Motorola M68000 seried, Intel Pentium
Mass Storage subsystems, disk/tape/raid, SCSI and TAPE
 Areas in which I have a good working basis, typically years:
Real-time VxWorks embedded software
Object oriented programming, mathematical algorithms
MGCP/TGCP VOIP Protocols
Electronics, Motor Controllers, Power Supplies
ISO 9001, Software Life Cycle
Linux, Solaris, Windows, NT, Samba
FORTRAN, assembly, ALGOL, ESPOL
ClearCase, SQL, MySQL, Informix. Windows XP, HTML, TCL/Tk
Astronomical Image Processing, FITS image format, DSP
PDP11, IBM 1130, IBM 1620, IBM 360, Power PC, PIC
Gigabit Ethernet, ALC (Airline Link Control)
 Areas in which I some experience:
JPEG, X/Motif, JavaScript, ADA, convolution, deconvolution
MATLAB, PERL, Python, Java, PHP, Visual Basic and .NET
Radar, VHDL, Xilinx FPGA, hardware level debugging
 Work experience:
Cisco Systems, Boxboro, Mass, Sr. Soft. Engr., 2000-2004
Real Time mixed radix FFT measurement tool.
In conjunction with QA's specifications I was solely responsible for creation of a scriptable test automation tool which generated/detected precise tones and the summarization of results in web pages. This was all done under FreeBSD.
 Cisco Systems, Chelmsford, Mass, Sr Soft Engr, 1998-1999 Part of a team which built a TCL based test called Tsunami tool for QA. I was responsible for the ISDN device driver. I was responsible for integration/debugging the other 3 device drivers. FreeBSD based. The Internet Travel Network, Palo Alto, California Sr. Soft. Engr., 1996 1998 Multi vendor computer reservation system backend. I was responsible for bringing in new hardware and creating new backend software to allow access to multiple computer reservation systems reservation systems (SABRE, Apollo, WorlDSPan, SystemOne, Amadeues). Basically it is a router. I was also responsible for provisioning, and problem resolution with the respective Network Operation Centers. This was SCO/SunOS based. I worked remotely. IDT, Hackensack, NJ, Sr. Soft. Engr., 1995-1996 Created a remote secure user/ppp account provisioning system for a IDT, for their associated ISP partners running Linux, FreeBSD and Solaris. Lockheed Sanders, Sr. Soft. Engr., 1994-1995 HOT SWAP 4 channel serial device driver under Solaris. HOT SWAP S-BUS/VME-BUS pseudo nexus device driver, SCSI device Drivers. This was part of the AFMSS program. I was solely responsible for this work and it required reverse engineering SUN kernel code in Solaris. Digital Equipment, Sr. Soft. Engr., 1993-1994 UFS, cdrom, and general file system utilities and kernel. Charles River Data Systems, Sr. Soft. Engr., 1991-1992 Port of Unos Kernel, creation of disk stripe and shadow, port of yellow pages, slip, file lock, LAN driver, SCSI driver, SIO driver I was solely responsible for these area. Geophysical Corporation of America Sr. Soft. Engr. 1989-1991 Fast database back end and communications facility. I was solely responsible for this work. Created, debugged, and documented data base engine for XLS semiconductor wafer stepper. This was a 37,000 line C++ program which directly provided data base functionality and communications to both Solaris and VxWorks components. The task included it's own data base backend. Education: University of Illinois Champaign-Urbana, Graduate Program
No degree achieved 1972 to 1979, 4.6/5.0
Concentration: Computer Science, virtually all courses taken.
 Cooper Union for the Advancement of Arts and Sciences B.E. Electrical Engineering 1972, GPA: 3.7/4.0
Concentration: Control Engineering
Member number:2458
Additional Contact information is available on the Informa tion Page.
The Software Contractors' Guild (www.scguild. com).
Copyright(c) 1998 Lawrence D. Lopez and The Software Contractors' Guild, Post Office Box 257, Nottingham, NH USA 03290-0257