Senior Developer (Delphi, PL/1, COBOL), IT Consultant

Betriebssysteme
- Android: Nutzung (Entwicklung)
- AOS/VS: Legacy Support
- iOS: Nutzung, Entwicklung, Training
- macOS: Nutzung (Entwicklung)
- Linux: Grundkenntnisse
- Novell NetWare: Legacy Support
- OS/390 (z/OS): ISPF, JCL, TSO
- Synology DSM: Administration
- Windows Desktop, Server: Installation, Administration, Support, Training
- Alte Betriebssysteme: BS2000, CP/M, MS-DOS, OS/2

Datenbanken
- Data General DBMS und INFOS_II
- DB2
- IMS
- Informix
- Interbase / Firebird
- MariaDB / MySQL
- Microsoft Access
- Microsoft SQL Server
- Oracle (einschl. PL/SQL)
- Sybase
- SQLite
- Paradox, xBase

Programmiersprachen
- C++, C#, Basic
- COBOL
- Delphi: AQB, CIS, DevExpress, EMS, EurekaLog, HTML Component/Editor/Report Library, Korzh Localizer, LMD, RxLib, TMS, TRichView, TurboPower
- HTML / CSS / XML
- Java / JavaScript / JSON
- PHP
- PL/1

Sonstige
Produkte
- HelpNDoc
- Microsoft Office (Support & Training)
- WordPress (Installation & Support)

Versionskontrollsysteme
- Git
- Mercurial
- Microsoft Visual Source Safe
- Subversion

Datenmodellierung
- ModelMaker
- TMS Data Modeler

Reporting (Delphi)
- Fast Reports
- List & Label
- Report Workshop

Bug Tracker
- BugZilla
- MantisBT
- FogBugz