The article the implies that you are the only developer for this software bundle.
The use of the article a would've implied that you were one of the developers, part of a team.
There's also the tendency to use no article when a person's position is unique:
'And last week, when Turner dismissed Johnson as coach, King again was asked to head the team for the final two games.' (There's only one coach in the team, so no article is used) (Chicago Tribune, via Google News)
But even if it's unique, it seems that it could be okay to still use the in "as-phrases":
I hope that as the president, you actively seek out opportunities to expand peaceful relations and alliances with countries who we are currently friendly and those who we may not have yet befriended. (Letters to President Obama, 2009)
(caveat: I'm not an English native speaker, and article use is sometimes cryptic to me)