Profile

Michael E. Kromer
With IT Architect


May 5, 1984
Vienna, Austria

Married, 3 children

Bayernstr. 18b
D-86343 Königsbrunn

+49 (179) 9300840
mkromer@medozas.de
http://medozas.de
"The real danger is not that computers will begin to think like men, but that men will begin to think like computers." - Sydney Harris English (fluent), German (fluent),
Dutch (very basic)

Professional Experience

Vice President (VP) Technology & Architecture
Kopano, The Netherlands

2016 - current

  • Designing & Defining protocols, standards and interoperability of Kopano product suite
  • Product owner of Kopano Core, the foundation of Kopano products
  • Lead of Kopano Core development team
  • Chief technologist. Defining the technological path for Kopano products
  • Geek to ask when something unexpected™ happens.

CEO
NETitwork, Germany

2015 - current

  • Highly specialized Linux/IT services company
  • Focus on linux-based solutions, delivering world-class software on demand
  • Escalation Management
  • Founded as GmbH from the foundations of NETitwork Security Solutions GbR (founded 2007).
  • Solving your IT problems, without discussion.

Vice President (VP) Products & Architecture
Zarafa, The Netherlands

2013 - 2016

  • As chief technologist lead the path for new products acompaning the existing product line, effictively designing the architecture of the future business model, called Kopano, enabling a vibrant marketplace and partner platform
  • Design & architect next generation communication products based on industry standards such as WebRTC and WebDAV
  • Technical lead of international and geographically split development teams
  • Tripled amount of existing and released products within 2 years

Head of Professional Services DACH
Zarafa Deutschland, Germany

2012 - 2013

  • Standardization of high availability product line
  • Leader in design & implementation of scalable, fault tolerant implementations of Zarafa from local data centers to geographical cluster split over continents
  • Responsible for very important customers, from governmental to automotive sector
  • Speaker at many events, such as CeBit
  • Filed patent for "System and method for sharing data storage devices"

Principal IT-Consultant & Linux Engineer
Millenux & Topalis AG, Germany

2008 - 2012

  • Principal Consultant leading technological development of custom developed software
  • Project lead for infrastructure projects at many customers, for example T-Systems, Maersk, Bosch & Continental Automotive
  • Development of first stable USBoverIP (URB-to-IP encapsulation) in linux kernel
  • Testing & enhancements of LIO iSCSI kernel target as successor to STGT in mainline kernel
  • Mainstream and first production implementations of software-enabled write-through caches based on bcache
  • Application development, such as complete-from-scratch development of the only alternative NX-compatible client (OpenNX)
  • Enterprise migrations, such as multiple-overlap NIS-migrations to Active Directory with PBISE (PowerBroker Identity Services Enterprise), formerly Likewise Enterprise

Chief Executive Officer (CEO)
NETitwork Security Solutions, Germany

2007 - 2015

  • Lead of small, strongly specialized consulting firm with customers in automotive and information technology sectors
  • Specilized in data center services (PaaS, SaaS)
  • Security auditing and security penetration tests
  • Strongly customized development projects, ranging from custom linux OS development (kernel & user-space) to cross-platform application development

Chief Technology Officer (CTO) & Chief Development Officer (CDO)
CC GmbH, Germany & SSDI, CA/USA

2002 - 2008

  • Design & implementation of first SRTP/SIPS implementation in asterisk VoIP PBX
  • Lead of development with targeting systems, effectively on GPS and sensor callibration systems for laser based target marks
  • Development of first multiple-uplink based routing for linux kernel (multi-route SNAT based on weighted algorithms)

Developer & Engineer
C-Soft GfSK, Germany

2000 - 2002

  • Implementation of first web-based Microsoft Visio-to-JPG export tool based on server-side processing, exposed with ASP
  • Enhancement of automated quality assurance & analytics systems at Siemens Healthcare & VDO

Security & Application Developer
Computer Century, Inc., NV/USA

1998 - 2000

  • First firewall designs based on ipchains, later iptables
  • Security auditing of multiple core infrastructure components (Mainframe)
  • Design of connection-initiation-agnostic filesystem CCGFS

Achievements

Certifications Public Presence
  • Red Hat Certified Engineer (RHCE)
  • NCLE (Novell Certified Linux Engineer)
  • Zarafa Advanced Engineer
  • Digium Certified Asterisk Professional (dCAP)
  • Microsoft Certified Professional (MCP)
  • Senior Level Linux Professional (LPIC-3), incl. 302 & 303
  • Univention Certified Professional (UVCP)
  • EC-Council Certified Ethical Hacker (CEHv5)
  • VMware Certified Professional (VCP)
  • Citrix Certified Administrator (CCA)
  • IT Infrastructure Library (ITIL) v3 Foundation
  • 2016, Chemnitzer Linuxtage
    Behind the scenes: Zarafa & Outlook – geht es auch besser?
  • 2016, CeBit Open Source Forum, Keynote
    Arbeiten und Kommunizieren im Office - 365 Tage im Jahr mit Open Source
  • 2016, DataCenterDynamics @ CeBit
    How Zarafa uses open source technologies to deliver innovative services to enterprises
  • 2015, Zarafa Tour
    Keynote Technology
  • 2015, Linux-Stammtisch München
    Zarafa Architektur
  • 2014, Zarafa Tour
    Keynote Technology
  • 2014, Mailserver Konferenz
    Darum ist Zarafa die beste Groupware
  • 2013, Chemnitzer Linuxtage
    Zarafa als Exchange-Ersatz in der (private|public) Cloud
  • 2013, LinuxTag & Open IT Summit
    Zarafa als Exchange-Ersatz in der (private|public) Cloud
  • 2010, openSUSE Conference
    X2go installation, configuration and best practices
  • 2011, Zarafa SummerCamp
    Advanced Proxying with Zarafa
  • 2010, Zarafa SummerCamp
    Install SUSE packages across 6.40.x and 7.x by one command

Recognition

  • 2011, Zarafa, Most contributing partner
  • 2010, Zarafa, Partner of the Year
  • 2004, SSDI, youngest C-level executive in company history (to date)

Publications

Google "Chrome" ohne Google? - Wie sich der Web-Browser "Iridium" durchsetzen will

DE

Bayerischer Rundfunk - B5 Aktuell

3/2016

US patent #20140250322 - System and method for sharing data storage

USA

US Patent Office

11/2013

Netzwerk-Dateisysteme im Geschwindigkeitstest

DE

Linux Magazin

02/2013

Filesystems Benchmarked

Worldwide

Linux Magazine

07/2012

NAS-Filer von vier bis 40 TByte im Vergleich

DE

Admin Magazin

03/2012

Anwenderbericht: Rechenzentrum auf Open-Source-Basis

DE

Millenux Corporate

06/2011

Sichere 9, PostgreSQL bringt Replikation und HA

DE

Linux Magazin

02/2011

Vorgelesen: Bücher über Nagios und VMware vSphere

DE

Linux Magazin

01/2011

Different Doorkeeper

Worldwide

Linux Magazine

11/2010

Virtualbox als Private Cloud

DE

Linux Magazin Technical Review

11/2010

Schrittmacherdienste

DE

Linux Magazin

11/2010

Zugriff nach Bedarf: Terminaldienst X2Go bekommt einen Webclient

DE

Linux Magazin

10/2010

Giraffenherde: Skalierbare Zarafa-Farm mit Round Robin DNS und HA

DE

Linux Magazin

09/2010

Besser abgesichert mit LinOTP

DE

Linux Magazin

02/2010

MySQL vs. PostgreSQL

DE

Linux Magazin Technical Review

12/2009

Netz und doppelter Boden

DE

Linux Magazin

09/2009

Knowledge

Operating Systems

  • Microsoft Windows NT 4.0 - 10
  • Microsoft Windows Server 2000 - 2008/R2
  • Red Hat Enterprise Linux (RHEL) ≥ 4
  • SUSE Linux Enterprise Server ≥ 9
  • Debian ≥ 4
  • Ubuntu ≥ 8.04
  • Gentoo ≥ 1.4
  • openSUSE (formerly SUSE Linux) ≥ 5.2
  • FreeBSD ≥ 4.0
  • Unix (Solaris ≥ 8, AIX ≥ 4.3, HP-UX ≥ 10.20, Tru64 ≥ 5.0, MPE-IX)

Development Languages / Interpreter

  • C, C++
  • Python
  • PHP
  • Javascript

Development Methodologies

  • Scrum
  • Kanban

Networking

  • IPv4, IPv6
  • IPSEC (incl. PKI based on x509)
  • ipchains, iptables, ebtables, BSD pf
  • tc (HTB, HSFC, CFQ)
  • Wireless LAN (802.11a/b/g/n/ac), WMM, WPA/WPA2
  • Bonding
  • WiMax
  • OSPF, BGP
  • Cisco PIX

Virtualization

  • VMware ESX
  • KVM
  • Xen (incl. XenServer, XenDesktop)
  • VirtualBox

Enterprise Services & Products

  • Zarafa Enterprise
  • Microsoft Active Directory
  • Microsoft Exchange ≥ 2000
  • Apache2, nginx, IIS
  • JBoss EAP
  • ISC bind, Microsoft DNS Services
  • ejabberd
  • Squid, SquidGuard
  • openLDAP, 389DS, Novell eDirectory, Apple Open Directory
  • Postfix, Exim, Sendmail
  • Amavis, Postgrey, ClamAV, Spamassassin
  • Dovecot, Courier, Cyrus IMAP, Sieve
  • HP/SIM
  • Nagios, Check_MK, Thruk, Icinga

Databases

  • MySQL, MariaDB ≥ 3.23
  • PostgreSQL ≥ 8
  • Oracle 9/10/11/12
  • INGRES, OpenINGRES
  • HP/DB (MPE-IX)

Backup

  • Veeam Backup
  • Legato Networker
  • Acronis TrueImage
  • AMANDA, Mondo Backup
  • SEP Sesam
  • Percona XtraBackup
  • dd, dd_rescue, rsync, robocopy

Terminal Services

  • Microsoft RDP
  • Citrix ICA, HDX
  • NoMachine NX3, NX4
  • X2Go

Voice/Video over IP

  • Asterisk
  • Freeswitch
  • SIP(S), (S)RTP
  • openSER/Kamailio
  • WebRTC

Version-Management

  • Subversion
  • git

Other

  • Extended security check by german government (§9 SÜG: Ü2)
  • Hunting License
  • Falconry License
  • Pilot in Training (PPL-A with VFR, NVFR, IFR), postponed until more time (ETA 2019)