i recently started on a node project and two of the modules i\'m using is express and EJS. but default i usually use eclipse as my IDE, it works well for java and decent for htm
As an addendum to rlegendi's answer, if you'd also like the proper html coloring, you need to go to "Content Types" (right above "Editors" in the Preferences). From here, select Text -> HTML and click on "Add..", including .ejs