Aidan Rahill joined the Fairfield University men's soccer coaching staff in July of 2023.

Rahill comes to Fairfield with five years of coaching experience, most recently serving as the First Assistant Men's Soccer Coach and later Interim Head Coach at Manhattanville College. During his tenure at Manhattanville the Valiants achieved a No. 7 Regional ranking and the 2022 Skyline Conference Regular Season Title. Rahill had two athletes named to the United Soccer Coaches NCAA Division III All-Region three team, seven athletes named to the Skyline All-Conference teams and the Skyline Conference Defensive Player of the Year. The Valiants finished their season with a 9-5-4 overall record.

Rahill also spent 2023 working with the New York Red Bulls as an Academy Performance Analyst, working closely with the U13, U14, U15 and U17 academy teams out of Whippany, New Jersey. His role involved pre-match, in-game and post-match analysis, along with individual clipping and opposition scouting. In his time with New York Red Bulls, Rahill worked closely with many talented players. He travelled with the U15 academy team to Dallas, Texas and played a part in their run when they were crowned the 2023 MLS Next Cup Champions.

Previous to Manhattanville and New York Red Bulls, Rahill served as the First Assistant Men's Soccer Coach and later Interim Head Coach at Coastal Bend College for the 2021-22 season. While with the Cougars, Rahill assisted with the development of weekly practice plans and evaluations of student-athletes. Rahill was also the recruiting coordinator for Coastal Bend men's soccer, helping to recruit student-athletes and attending camps across the world to recruit players. In addition to organizing and planning team travel and breaking down opponent film, Rahill was the team's social media manager, helping to develop an identity for Cougar Men's Soccer online. Coastal Bend reached a No. 5 national ranking while Rahill was on the sidelines in the 2021 season and mentored three All-Region XIV players. 

After finishing the 2021-22 season at Coastal Bend, Rahill served as a First Team Assistant Coach and Head Reserve Coach at St. Louis Lions of the USL 2 as they narrowly missed out on a playoff spot. The St. Louis Lions were ranked as high as No. 14 Nationally in the USL 2 during the 2022 season.

Prior to making his way to Coastal Bend, Rahill served as an Assistant Coach at Barca Academy in Charlotte, North Carolina earlier in 2021, conducting practice sessions while joining a travel team that made its way along the east coast throughout the summer. Rahill also served as a coach for the Football Association of Ireland in 2018. He currently holds a USSF "C" License. 

Rahill was a member of the Missouri Valley College men's soccer team from 2017 to 2021, serving as the team's vice-captain in his senior year. Missouri Valley men’s soccer would claim the NAIA National Championship in the 2020-21 season for the first time in the programs very successful history. Rahill was also a 2020 NAIA Scholar Athlete whilst a student-athlete with the Vikings. Rahill played for the St. Louis Lions of USL League Two in 2019 before playing for Alamo City SC out of San Antonio, Texas in 2020.

Rahill is a 2021 graduate of Missouri Valley College, earning a Bachelor of Science in Business Administration and Management along with a Minor in Accounting. He currently resides in Fairfield, CT.