2 English: technical: fluent, general: communicable
5 Licenses: motorcycle, car
6 eMail: job@jankratochvil.net
7 Projects: http://www.jankratochvil.net/project/
8 Resume: http://www.jankratochvil.net/resume/
9 OpenPGP: pub 1024D/26A802B2 2004-01-17
10 sub 2048g/A74DF86D 2004-01-17 [expires: 2007-01-16]
16 2005/04-11: VA Linux Systems Japan
17 Linux kernel based development
19 2004/01-11: Sun Microsystems
20 Java Enterprise System Quality Assurance (JES QA), technical lead
21 JES components compatibility analysis, automation of QA tasks, JES testing,
22 QA frameworks pilot deployments, architecture and lead of the team projects,
23 team programming guidelines
26 Freelance Commercial Projects
27 -----------------------------
29 2005: MMS2: Alternative center for cheaper mobile phones multimedia messages (MMS)
30 Web interface was outsourced.
31 Commercial service management held together by company JK-Invent.
32 * Designed to coexist with existing GSM networks service servers
33 * MMSE/WAP-Push/web/mail convergency featuring smart transformations
34 * Credits charging by ISDN IVR + automatic bank transaction acceptance
35 * Completed mobile phones firmware bugs analysis and workarounds
36 * Free gatewaying program to avoid targetted GSM operators firewalling
38 2004: HotelGate: Internet Public Access Gateway
39 Plug&Play TCP/IP for clients, selectively ticketed and/or free access,
40 simplified interface for reception desks, easy and unified management.
41 European facility installations provided by JK Labs.
43 2002-2003: Captive: The first free NTFS read/write filesystem for GNU/Linux
45 Analysis of portions of 80MB+ i386 disassembly dumps of MS-Windows XP kernel
46 and ntfs.sys for the first binary compatible reimplementation of the
47 undocumented XP kernel subsystems.
48 Written TraceFS: Microsoft Windows Kernel API Tracer: MS-Windows Kernel API
49 Tracer as native W32 kernel hooking driver for run-time analysis of the NT
50 Cache Manager XP kernel subsystem.
51 UNIX userland of Captive provides GnomeVFS interface to the MS-Windows kernel
52 based MS-Windows filesystem isolated by the CORBA/ORBit interface.
58 2001-2002: Advanced Telecom Services
60 * MMS framework client via EuroTel GSM operator
61 by technologies GSM MMS, Perl, XML, SOAP
62 Project included pilot MMS Center debugging with Ethereal,
64 * Multimedia EMS support implemented by GSM::SMS patch
65 * Implementation of protocol BIP (based on Nokia CIMD2 protocol) for GSM SMS
66 Center direct communication by extending gnokii for EuroTel GSM operator
69 Partition Surprise: GPLed Partition Magic clone
70 Project was completed as a team work. The code is based on Gnome
71 technologies. As one of the subtasks to keep system bootability I implemented
72 Int13Sniff to ease Microsoft boot loaders disassembly across partition
76 Mobile technologies for embedded devices
77 * Completed debugging of gnokii GSM software modem for Nokia 5190
78 * Port of gnokii and my mdsms (Mobile Device SMS Tool) to embedded uClinux
81 System administration of GNU/Linux and FreeBSD,
82 techsupport: GuestNET, Eclipse, GlobaLoop, Fresco
83 Ad hoc technical support challenges such as i386 IRQ redirector, Middleman
84 port (HTTP proxy ported to FreeBSD) or ssht (Unattended intranet host
85 accessibility by SSH tunnel).
88 tac_plus auth: Cisco TACACS+ NAS host based authorization
91 Technical translations from English
94 Mobile technologies, embedded devices
95 * 332: AmigaOS kernel port to embedded Motorola 68332
96 * Siemens M1 GSM modem daemon for GPS, client/server setup,
101 * MobilDock SMS Tool: SMS communication software for Digital UNIX
103 1998: European Law Students' Association
104 STEP: Custom web database application incl. fixes of PHP and PostgreSQL
106 1993-1996: Profes J&K
107 PC assembly and customer service
110 StampMan: Database application (MS-DOS: Pascal, plainTeX)
113 For referees e-mails please see: http://www.jankratochvil.net/resume/
119 1997: Bronze medal in the International Olympiad in Informatics, Cape Town
120 1997: 2nd in an MO-P national contest - mathematics Olympiad, the programming
121 1997: 1st in the International Competition in Programming
122 1996: 4th in the International Competition in Programming
123 1995: 7th in the Central European Olympiad in Informatics
130 mobile technologies, filesystems, embedded devices
132 GNU/Linux/i386/UNIX/FreeBSD, W32 kernel, Amiga/680x0, MS-DOS, ZX Spectrum,
135 C (Gnome/GCC), Perl, bash/awk/sed..., Java, C++, Pascal, Basic, REXX, S-Lang,
138 autoconf, automake, libtool, m4, CVS, gettext, bison, flex, ld script,
141 i386/x86_64, Motorola 680x0, Zilog Z80, Intel 8051, MIPS R2/3000,
144 HTML/XHTML, CSS, PHP, SQL (PostgreSQL, MySQL), JavaScript, CGI
146 plainTeX, LaTeX, DocBook, DocBook Lite, XML/NS/Schema, gtk-doc, nroff, pod
148 Gnome/GTK+/GLib, POSIX/BSD/SysV/threads/sockets, X11, OpenGL, NCurses,
149 S-Lang, GnomeVFS, libxml, SVGALib, NIS, Qt,...
151 CORBA/ORBit, SOAP, WSDL, Sun RPC
153 GSM SMS/PDU/Nokia Smart Messaging/EMS/WAP/WTP/WSP/MMSE/SMIL/WML/AMR/ETSI
154 stds/3GPP stds, IPv4, HTTP, SMTP/RFC822/MIME, FTP, SSH, DHCP, POP3,
155 NFS v2/v3, PPP/LCP/IPCP,...
157 ext2, FAT, AmigaFFS, ISO-9660