- Linux (Intel, PPC, MIPS, ARM)
- Embedded Linux
- Windows Server/Desktop/Mobile
- iPhone, iPad, MacOS
- BSD, Solaris
- RTOS-32 (Beck IPC)
- Microcontroller (STM32, ATMEL, PIC, Texas Instruments/TI)
- C, C++, objective C
- Java, Java EE (Enterprise)
- php, Perl, Python
- html5, Javascript, DSLs
- Dot.NET C#
- Delphi, Delphi.NET
- Matlab
- OCaml, Haskell
- qt, qtopia, gtk, boost, openssl
- tomcat, glassfish, JBoss
- GWT, JSF, JSP, AspectJ, OSGi
- Spring, SWT, Gin, Liquibase
- Apache Commons, CXF
- Symfonie, jQuery, Zend, React
- AngularJS, Backbone.js, Dojo
- Various open source libs
- MariaDB / MySQL
- Oracle
- sqlite
- Postgresql
- Sybase
- Ethernet, W-LAN, UMTS, LTE
- rs232, rs422, rs485, USB
- CAN, CANopen, PROFIBUS
- Bluetooth, ZigBee, 6LoWPAN
- RFID, 3964R, GPIOs
- TWI, 1wire, i2c, UART, PWM
- Distributed systems / networks
- Client/server architectures
- Multi-tier architectures
- Smartcard reader/communication
- high security systems
- Common Criteria certification
