Programming languages
Java
PHP
C#
.NET
Ruby
C++
UI and Web development frameworks
Ajax and JavaScript
Web technologies
Mobile
BI
Web Services
Messaging Middleware
IDE
Versioning Control
Build tools
Continuous integration tools
Databases/Data storages
Application and web servers
Cloud computing
Enterprise Service Bus
Sales Force Management
UX Tools
UI and graphic Tools
Testing tools and frameworks
Issue management tools
Project planning and management
Effort estimation
Risk identification, evaluation and minimization
Software development methodologies
Quality planning
Product Innovation
UML tools and techniques
Database modeling tools