Name:     Jan Kratochvil
English:  technical: fluent, general: communicable
Born:     1979
Sex:      male
eMail:    job@jankratochvil.net
Projects: http://www.jankratochvil.net/project/
Resume:   http://www.jankratochvil.net/resume/
OpenPGP:  4D2089DB


Fulltime Jobs
-------------

2006/07-...: Red Hat
  GNU Compiler Tools development: primarily GDB

2005/04-11: VA Linux Systems Japan
  Linux kernel based development

2004/01-11: Sun Microsystems
  Java Enterprise System Quality Assurance (JES QA), technical lead
  JES components compatibility analysis, automation of QA tasks, JES testing,
  QA frameworks pilot deployments, architecture and lead of the team projects,
  team programming guidelines


Freelance Commercial Projects
-----------------------------

2005-2006: MMS2: Alternative center for mobile phones multimedia messages (MMS)
	Web interface was outsourced.
  Commercial service management held together by company JK-Invent.
   * Designed to coexist with existing GSM networks service servers
   * MMSE/WAP-Push/web/mail convergency featuring smart transformations
   * Credits charging by ISDN IVR + automatic bank transaction acceptance
   * Completed mobile phones firmware bugs analysis and workarounds
   * Free gatewaying program to avoid targetted GSM operators firewalling

2004: HotelGate: Internet Public Access Gateway
  Plug&Play TCP/IP for clients, selectively ticketed and/or free access,
  simplified interface for reception desks, easy and unified management.
  European facility installations provided by JK Labs.

2002-2003: Captive: The first free NTFS read/write filesystem for GNU/Linux
  Featured on slashdot.
  Analysis of portions of 80MB+ i386 disassembly dumps of MS-Windows XP kernel
  and ntfs.sys for the first binary compatible reimplementation of the
  undocumented XP kernel subsystems.
  Written TraceFS: Microsoft Windows Kernel API Tracer: MS-Windows Kernel API
  Tracer as native W32 kernel hooking driver for run-time analysis of the NT
  Cache Manager XP kernel subsystem.
  UNIX userland of Captive provides GnomeVFS interface to the MS-Windows kernel
  based MS-Windows filesystem isolated by the CORBA/ORBit interface.


Contractor Jobs
---------------

2001-2002: Advanced Telecom Services
  Mobile technologies
   * MMS framework client via EuroTel GSM operator
     by technologies GSM MMS, Perl, XML, SOAP
     Project included pilot MMS Center debugging with Ethereal,
     fixes of Ethereal.
   * Multimedia EMS support implemented by GSM::SMS patch
   * Implementation of protocol BIP (based on Nokia CIMD2 protocol) for GSM SMS
     Center direct communication by extending gnokii for EuroTel GSM operator

1999-2000: SuSE
  Partition Surprise: GPLed Partition Magic clone
  Project was completed as a team work. The code is based on Gnome
  technologies. As one of the subtasks to keep system bootability I implemented
  Int13Sniff to ease Microsoft boot loaders disassembly across partition
  modifications.

2001-2002: ReadyNote
  Mobile technologies for embedded devices
   * Completed debugging of gnokii GSM software modem for Nokia 5190
   * Port of gnokii and my mdsms (Mobile Device SMS Tool) to embedded uClinux

1999-2003: JKLabs
  System administration of GNU/Linux and FreeBSD,
  techsupport: GuestNET, Eclipse, GlobaLoop, Fresco
  Ad hoc technical support challenges such as i386 IRQ redirector, Middleman
  port (HTTP proxy ported to FreeBSD) or ssht (Unattended intranet host
  accessibility by SSH tunnel).

2001: GTS
  tac_plus auth: Cisco TACACS+ NAS host based authorization

1999: Unicom
  Technical translations from English

1998-1999: Geoinvest
  Mobile technologies, embedded devices
   * 332: AmigaOS kernel port to embedded Motorola 68332
   * Siemens M1 GSM modem daemon for GPS, client/server setup,
     remote GSM terminals

1999: TENcom Trade
  Mobile technologies
   * MobilDock SMS Tool: SMS communication software for Digital UNIX

1998: European Law Students' Association
  STEP: Custom web database application incl. fixes of PHP and PostgreSQL

1993-1996: Profes J&K
  PC assembly and customer service

1993: Japhila
  StampMan: Database application (MS-DOS: Pascal, plainTeX)


Awards
------

1997: Bronze medal in the International Olympiad in Informatics, Cape Town
1997: 2nd in an MO-P national contest - mathematics Olympiad, the programming
1997: 1st in the International Competition in Programming
1996: 4th in the International Competition in Programming
1995: 7th in the Central European Olympiad in Informatics


Experience Summary
------------------

Major Areas:
  mobile technologies, filesystems, embedded devices
Platforms:
  GNU/Linux/i386/UNIX/FreeBSD, W32 kernel, Amiga/680x0, MS-DOS, ZX Spectrum,
  handheld PC-E500S
Languages:
  C (Gnome/GCC), Perl, bash/awk/sed..., Java, C++, Pascal, Basic, REXX, S-Lang,
  Foxplus, Prolog
Tools/Metalanguages:
  autoconf, automake, libtool, m4, CVS, gettext, bison, flex, ld script,
  gdb script, Maple V
Assemblers:
  i386/x86_64, Motorola 680x0, Zilog Z80, Intel 8051, MIPS R2/3000,
  (Hitachi SH-8)
WWW-Related:
  HTML/XHTML, CSS, PHP, SQL (PostgreSQL, MySQL), JavaScript, CGI
Documentation:
  plainTeX, LaTeX, DocBook, DocBook Lite, XML/NS/Schema, gtk-doc, nroff, pod
Libraries:
  Gnome/GTK+/GLib, POSIX/BSD/SysV/threads/sockets, X11, OpenGL, NCurses,
  S-Lang, GnomeVFS, libxml, libneon, SVGALib, NIS, Qt,...
RPC:
  CORBA/ORBit, SOAP, WSDL, Sun RPC
Protocols:
  GSM SMS/PDU/Nokia Smart Messaging/EMS/WAP/WTP/WSP/MMSE/SMIL/WML/AMR/ETSI
  stds/3GPP stds, IPv4, HTTP, SMTP/RFC822/MIME, FTP, SSH, DHCP, POP3, IMAP4,
  NFS v2/v3, PPP/LCP/IPCP,...
Filesystems:
  ext2, FAT, AmigaFFS, ISO-9660
Certificates:
  RHCE 805008572734652


$Id$