In fact, the automated programme does the work so well, that the tech whizz even has to add in mistakes to make sure their secret system goes unnoticed.
But after six months of full-time pay and little work, guilt has started to kick in, and the computer geek took to Internet forum The Workplace to ask whether its ethical.
They wrote: "I've basically figured out all the traps to the point where I've actually written a program which for the past six months has been just doing the whole thing for me.
The anonymous tech worker wasn't sure if what they were doing was ethical, so took to an Internet forum to seek advice
"So what used to take the last guy like a month, now takes maybe 10 minutes to clean the spreadsheet and run it through the program."
They added: "Every week or so, I tell them I've completed some part of it and get them to test it. I even insert a few bugs here and there to make it look like it's been generated by a human."
The worker, who describes their work as glorified data entry, is a parent who works from home, and has enjoyed spending the extra time with their son.
They continued: "I really enjoy the free time but would it be unethical to continue with this arrangement without mentioning anything? It's not like I'm cheating the company.
The cheeky computer whizz has been "enjoying" their free time, but the situation has divided opinion
"The company has never indicated they're dissatisfied with my performance and in fact, are getting exactly what they want from employing me."
The predicament divided opinion on the forum. One person pointed out that they are not selling time, but results, and it's unethical to add in the mistakes.
But others disagreed, and said it was unethical to deceive the employer.
One wrote: "Although the answer seems obvious to me, perhaps your personal ethics lead you to conclude that this is okay.
The crafty tech worker manage to come up with a system which meant the computer did most of the work
"I suspect you know the truth though and perhaps this is more along the lines of a humblebrag than anything else."
The tech whizz then responded to the unimpressed internet user by saying: "It's not like I'm cheating the company".
They added: "It's not? Okay, then you should just tell the company what you have done and see if they agree. If you are right, they won't feel cheated, will say 'Good job! Carry on' and will continue to give you 40 hours worth of wages for 2 hours of work."