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Technical Achievements and Experience |
James R. Bergsten 8 Brightwood Way Danville, CA 94506-1915 (925)
838-4615 |
With more than thirty years experience
in computing, I have developed many successful, high-quality, low-maintenance,
easy-to-use hardware and software products.
Have architected, designed, developed, debugged, tested, and documented
six award-winning software products, and two hardware/firmware products. Many of these are presently in productive use
worldwide -- some have been running “bug-free” for over twenty years.
Have personally developed three proprietary operating systems, two real-time
storage array and virtualization systems, disaster recovery and business
continuation applications, financial applications, database applications,
application and systems development and debugging tools, and graphical display
systems.
Have written well over half a million
lines of debugged production code, and several thousand pages of technical
documentation. Have twelve sole-inventor
“crown jewel” Patents Issued, and four Patents Pending.
Product Development Experience
Operating System Development
Architected and developed a
platform-independent real-time operating system, supporting n-way
multiprocessing and multitasking, scheduling and dispatching, memory allocation
and management, device virtualization, rudimentary file system, system
initialization and shutdown, device discovery, security, encryption, resource
locking, semaphores, system debugging and console command processing.
Developed an entire multi-homed
TCP/IP stack from scratch. Developed
servers for Telnet, FTP, HTTP, SNMP, and multiple vendor-specific protocols.
Architected and developed a
complete fault-tolerant, multipathing I/O subsystem.
Developed device drivers for initiator
and target mode SCSI and Fibre Channel, iSCSI, ATA, SATA and SAS, serial and
parallel ports, disk, tape, CD/DVD, flash memory, EEPROM, NVSRAM, UPS, timer,
real-time clock, keyboard, USB, Ethernet/Gigabit, and simple graphics. Developed extensive software for device
exercising and testing, bring-up, compliance, data-integrity-verification,
fault-isolation, diagnostics, and performance analysis and reporting.
Storage Array Subsystem Development
Architected and developed an
interface-agnostic, SCSI-compatible storage product with support for disks,
tapes and CD/DVD, device simulation, caching, device virtualization, zoning,
transparent local and remote device access, n-way local, remote, and cascaded
mirroring and snapshot, no single point of failure, n+1 failover/fallback,
multiple active coherent cache, data error detection and recovery, customizable
performance and tuning, configuration, extensive reporting, and support for
user, operator, administrator, and maintenance console commands.
Started porting of this application to Linux and/or BSD.
Developed SATA and iSCSI drivers for LSI Logic storage arrays. Took over development, debugging, and
documentation for defunct storage array supplier.
Application Development
Designed, managed, and/or developed six
successful products for the IBM mainframe environment including: XMENU, a multiple-award winning
windowing tool for mainframe terminals (pioneered what-you-see-is-what-you-get
screen layout editing, and symbolic-field-naming), KPROBE, a post-mortem operating system debugging tool, XDEBUG, an interactive application and
system debugging tool, SQLEXEC and SQLMENU – interactive SQL development
tools, and KDES, a file encryption
tool. Also developed program product
distribution and maintenance tools.
Co-developed a pharmaceutical tracking system using radio frequency
identification (RFID) technology, web programming, and SQL databases. Developed a financial application for
testing, simulating, and validating equities trading and portfolio management. Developed tools for product development,
test, and installation.
Platform
Experience
Personal Computers and Servers
Microsoft Windows-- all variants
-- product design and development, modifications, device drivers, installation,
performance and tuning, maintenance, testing, operation, experience with
virtually all popular software products.
Subscribe to MSDN. Maintain
multiple personal XP and Server systems, including SQL, web servers, email
servers, communications servers, and application servers.
Linux -- all variants -- product
design and development, installation, testing, performance and tuning,
operation, device drivers. Maintain
multiple personal Redhat and SuSE Linux systems.
UNIX/BSD -- product design and
development, installation, performance and tuning, operation,
administration. Maintain multiple
personal FreeBSD, NetBSD, OpenBSD, and Solaris systems.
Mainframes
VM -- all variants -- product
design and development, modifications, installation, performance and tuning,
testing, operation, experience with virtually all program products
MVS -- all variants -- product
design and development, installation, testing, performance and tuning,
operation, experience with most popular program products
SQL databases -- product design
and development, installation, performance tuning, operation, administration
Storage management -- product
design and development, performance tuning, operation, administration
MIS management -- hardware and software
procurement, installation, operation management, maintenance, physical
planning, and disaster recovery – managed multiple enterprise computer centers.
Minicomputers, Workstations
Intel x86 -- product design and
development, hardware and software acquisition and installation, performance
and tuning, BIOS development, own Pentium development and test systems, with
personal copies of over fifty software development, application, and tool
products, Windows SDK and DDK, Windows
XP/Vista SDK, DDK, and HAL..
Power PC -- NT, AIX --
firmware/diagnostics/system bring up.
Windows NT SDK, DDK, and HAL
Novell NetWare, Windows, Linux,
BSD, Solaris -- network setup and administration
Experience with UNIX systems dating back
to first UNIX version shipped outside Bell Labs to AUX/Solaris/UTS/Linux
Languages
C, C++, Microsoft Visual C++,
Intel, Gnu -- product design and development
REXX -- product design and
development
FORTRAN
Turbo Pascal and Pascal/VS
Minor experience with many other
languages
Many assembler languages
Many microcoding languages – developed
proprietary microcode compiler
Several prototyping/object oriented
languages (Actor, Smalltalk V)
Documentation, Web Design, Multimedia, Image, and Graphics
Microsoft Word and PowerPoint,
Word Perfect, Adobe Acrobat, Framemaker, and Pagemaker
Adobe Photoshop, Illustrator, and
Premiere, Corel Graphics Suite, Microsoft Visio
IBM DCF, GML, BookMaster including macro
development
Hardware, Device Drivers, Vendors, and Standards
Parallel SCSI (LSI), Fibre
Channel (QLogic, Emulex, LSI), iSCSI (QLogic, Intel, others), SAS (LSI), PCI,
PCI-x, PCI Express, Infiniband, IDE/ATA/SATA (Intel, Marvell, Promise,
Broadcom), Ethernet/GigE (Intel, Broadcom), ISA/EISA., BIOS, ACPI
ATA/SATA, SCSI, FC, SAS drives (Seagate, Maxtor, Western Digital, Hitachi,
others), various CD/DVD and tape drives
Extensive IBM mainframe
experience -- diagnostic development, test cases, advanced function design and
specification, ESCON, channel programming including virtually all peripherals
x86, Power PC, X-scale, MIPS -- systems
architecture (embedded Linux, RedBoot, OpenBoot, grub) – various chipsets
(Intel, Broadcom, Marvell)
Miscellaneous
Spreadsheet -- Excel
General Accounting -- Peachtree
Project and Development
Management -- Microsoft Project, Track, Delta, SourceSafe
Contact Management - ACT
Communications -- Procomm, PC
Anywhere, Carbon Copy, LapLink
Large complement of development and
debugging tools
Music Studio
Large complement of music,
electronic, and digital recording and mixing equipment
Digidesign Pro Tools HD system
Sony Acid, Vegas, Sound Forge
Tascam Gigastudio, Cakewalk Sonar
Many custom applications, large
complement of samples