Certifications for an environmental engineer

I'm an Environmental Engineer, EIT and I would like to know what type of certifications would be good to have for any engineer in any field... I.e. AutoCAD? HAzWopper? .. I'm currently working in IT as a Project Manager and I really like what I study but for some reason I'm having trouble getting a job in the field that I love. Any suggestions?

I would really appreciated. Thanks in advance :)

-Cristina
posted by Cristina, Seattle, WA/ San Juan, PR on July 16, 2014