Question to CEH as a Software Developer

Hey Guys,

currently i´m a software developer with a good knowledge about cybersecurity.
My boss wants me to do the CEH (not Master) certificate to be ready for the next step in my career (software security and teamlead). I currently have the CASE certificate.

My question is, is the CEH feasible / learnable as a software developer with limited experience for now?

Should I first do the Essentials Ethical Hacking from ECCouncil or another certificate from ECCouncil to learn minor skills? Has anyone similar experience to me?