Keegan was born in 2341 on the planet Nolana 5, a farming colony close to the Klingon border. His family had owned a house there for 3 generations. He grew up farming, though he wanted something more for his life and ended up joining Starfleet, against his father's will. His father did not support him in his action and they have not spoken since. Keegan's mother did support him, though, and still talks to him when she gets the chance. Keegan quickly passed through the academy, he was always great in school, though he remained relatively friendless throughout his entire program. He began his service on a small patrol vessel and soon discovered that he didn't like the constant routine of patrolling several sectors. He transferred to a larger ship and found that the extended several year-long missions was too long without communication from his family. He decided to transfer to a starbase to see if he enjoyed the starbase life better.
Starfleet academy - graduated with honours in the extended engineering and systems development program. The program is aimed to challenge those already familiar with engineering systems, possibly preparing cadets for research assignments. Keegan specialized in combat systems, propulsion systems, and phaser rifles.
First starship - Nebula-class, the USS Phoenix. Began as ensign and graduated to Lieutenant junior grade after displaying impressive work in engineering and increasing the efficiency of several combat systems, including shields and phasers. He transferred off the ship in 2366.
Second starship - Excelsior-class, the USS Gorkon. The ship was sent on a three-year exploration mission, but was sidetracked as they experienced a large battle at the end of their first year. Here, Keegan was forced to take command of engineering as the chief engineer had been killed and the assistant chief engineer was trapped with two other high - ranking engineer officers in a service duct. He was promoted to Lieutenant after the ordeal and asked to be reassigned to a starbase with the chance to have away missions on a ship.