Systèmes
| Linux (CentOS, Ubuntu, Debian,) | MacOS |
| Unix (BSD*, AIX, Solaris, HP-UX) | Windows |
| Z/OS – MVS |
Réseau
| Bind/DNS | CICS Transaction Gateway (CTG) |
| Firewalls PF, IPF, PFSense,Iptables, Linux bridge, OpenVSwitch | HTTP, SSL, API REST |
| IMSCONNECT | IPSec et ISAKMP (VPN), OpenVPN, Racoon |
| SMTP, Sendmail | SNA (LU 6.2, LU0, LU2) |
| Squid, DenyAll, Nginx, Apache | TCP-IP (architecture et développement) |
| X25 |
Programmation, protocoles, devOps & ateliers
| Ansible | AWT, GWT, Swing |
| C/C++ | C# |
| Eclipse, JDT, plugins Eclipse, IntelliJ | Google Polymer 1.0 & 2.0 |
| HTML, XML, CSS, XSL, Json | Java JEE |
| Javascript, Angular | Jython |
| NodeJS | Perl |
| PHP | Python |
| REST API, Swagger | Sensu |
| Shell-scripts, Bash | Vaadin, Applet, Widget |
MiddleWare & Web
| Amazon AWS (EC2, S3, SQS, SNS, SES) | Apache, IHS, Nginx |
| Connecteurs JCA (1.0, 1.5) | Docker |
| JMS, Websphere MQSeries, ActiveMQ | JQuery, AngularsJS, Ionic, Bootstrap, Polymer |
| LDAP : OpenLDAP, Active Directory | OpenSSL, OpenCA |
| Openstack | Spring |
| Tomcat, Jboss, GlassFish, WebSphere, WebLogic | Web Services SOAP, JAX-WS, JAXB, UDDI, Apache CXF |
| WordPress, WooCommerce | WSO2 APIM |
SGBD
| MongoDB | MySQL / MariaDB |
| Oracle | Postgresql |