[nostrademons]

You could use "developer hours", which is gender-neutral, more specific, and seems to be used more often in the tech industry anyway.

[s73v3r]

Which ignores things like design, planning, and testing.

[nostrademons]

Those are all still developing. "Developer" (as opposed to "software engineer") usually has connotations of being a full-stack role where you do everything needed to get a software product out the door. I've been doing graphic design in Photoshop for the last couple days, for example.