Change Management (Business and Management)

Language of Instruction: English, German

Network Security (Computer: Security)

Language of Instruction: English, German

VPN, packet filtering, routing concepts, redundancy

Linux (Computer: Operating Systems)

Language of Instruction: English, German

HA storage, security, redundancy, configuration management

SCM (Computer: Programming)

Language of Instruction: English, German

Subversion, TRAC

Finance (Accountancy)

Language of Instruction: English, German

Accounting, reporting, budget management, auditing, business statistics

IT consultant

Genedata AG, Switzerland

May 2006 - Present

HA storage, SCM, networking

High availability storage
- Clarion CX3-20 on switched fibre and Linux w/ QLA & EMC PowerPath [replaced by DM.multipath]
- Clarion CX3-20 on switched fibre and Linux w/ QLA & DM.multipath
- iSCSI (MD3000i, OpenFiler and iSCSI enterprise target) on Linux w/ DM.multipath
Software change management
- SVN (multi generations)
- TRAC (multi generations)
- JIRA
Networking & network security
- WAN re-setup of 6 sites (2xUS, 3xEU, 1xJP) w/ OpenVPN and Linux (Slackware & CentOS) core systems
- Nagios monitoring w/ event handling for automated service recovery
Certificate authority / cryptography
- client certificate authentication for OpenVPN (OU based config -> concentrator mod)
- client certificate authentication for web based services

Chief technician

PloenK.NeT Informationstechnik e.K., Germany

Mar 2003 - Present

Linux/Unix, software development, ERP, project management, budgeting, accounting

Linux/Unix (Slackware, CentOS, Solaris)
- automated installation
- software packet creation
- configuration management
- services (DNS, mail, DHCP, VPN)
- database optimizing (PostgreSQL & Oracle)
software development
- C programming
- JAVA programming [basics only]
- PERL programming [basics only]
- revision control systems (RCS, CVS, Subversion, GIT)
- issue tracking systems (TRAC, JIRA)
- OS independent installations
ERP & project management
- SQL-Ledger
- ProjectOpen
- Gantt (OpenProj, GanttProject) and import into ERP/PM
- in-depth project structure analysis and dependency-based re-alignment
Budgeting & accounting
- multi-site, multi-currency and multi-chart budgeting and resource analysis and planing
- automated project accounting (filters between systems)

Scientific assistant

University of Mannheim, Germany

Mar 1998 - Feb 2003

Cryptography, Certificate authority, Smartcards, HelpDesk server

Cryptography
- PGP, GnuPG
- OpenSSL
Certificate authority
- high throughput CA w/ secured offline request batch processing
- PGP keysigning
- OpenSSL / x509 certificate issuing
- automated (active) CRL distribution [no client implementations given at that time]
- PostgreSQL DB backend w/ own crypto extensions [experimental]
Smartcard
- ISO 7816 based cards
- CardOS M4, TCOS 2.x [in cooperation w/ Siemens/Infineon, T-Sec]
- key generation on-card
- client applications using CT-API & PKSC#11
HelpDesk server
- replacement for Applix Enterprise server on 7 sites
- inter-instance case and FAQ sync
- Oracle 9 DB backend w/ PL/SQL to optimize mangling