hey nicholasandrewhalls
Irony catches the readers attention. Not all loglines have irony, but most of the good ones do, for example .

A lawyer that can not lie (liar liar) a king that can’t speak to his people (The kings speach) That is irony.

“a future where criminals are arrested before the crime occurs, a drug addicted cop struggles on the lam to prove his innocence for a murder he has not yet committed. (Minority Report) Irony.

Jacobs own work turns out to be his down fall? Irony?

Your logline should be in between 25-30 words.

Names and age are irrelevant unless they are relevant to the story.
The protag is a developer. How would you describe him, character-wise? Lonely? obsessive-compulsive? Drug addict? (like Minority Report) Something that he needs to overcome at the end of the story.

“After being warned from a woman claiming to be from the future. A obsessive developer must make the choice to heed her warning or continue his work that may bring the downfall of man”

something like that but better… Hope it helps.