Brother of star Linfield Ladies forward Kirsty McGuinness with 2 other younger sisters in Linfield Ladies Academy teams.
"Caomhan joined Linfield during the summer from SOPFC and has consistently been a top performer for the Swifts. His sister Kirsty is a star forward for Linfield and Northern Ireland." Steel and Sons cup final programme December 2017
Unused sub for the first team in the final 2 home games of the 2017/18 season.
“A product of the Oliver Plunkett Academy, Caomhan has had a great first season at Windsor Park. Swifts regular with a big heart and skills Caomhan recently made the bench in David Healy’s first team.” Bryan McCarroll Youth Cup Final programme 2018
First team debut as a sub in a 5-0 League Cup home win against Institute on October 30, 2018.
Signed his first professional contract in January 2019 until the end of the 2020/21 season.
Agreed a loan deal with Dungannon Swifts on August 8, 2019 until the January transfer window.
Loan extended on January 3, 2020 until the end of the 2019/20 season
LINFIELD CAREER RECORD
(at end of 2019/20):
Played: 3 (including 2 as sub)