SharePoint SSOM, CSOM, JSOM, [login to view URL], REST Services, Excel Web Services, BI Services, BCS Services, Farm Setup, Site Collection Setup, sub-Site setup, Search Configuration, Central Administration Activities.
SharePoint On-Premises: SPFarm Solution, SP Sandbox Solutions, SP Features, Event Receivers, Web Parts, Visual Web Parts, Timer Jobs, Backup, PowerShell, Installation & Configuration of Farm, Form Authentication, SSRS, InfoPath solutions, Excel Web Services Configuration, Client-Side Workflows, Master Pages, ASPX pages, Bootstrap, Branding etc.
SharePoint Online: Migration, Branding, Provider hosted apps, InfoPath Solutions, Excel Web Services, External Lists, ETL Tools, Event Receivers, Web Parts, XSLT Web Parts, SPD Workflows, List Pages, JavaScript Pages, Content Editor Web Parts, MVC Web Applications, Dealing with Threshold Limits etc.