Before the 2024–2025 season, the 25-year-old leaves the Bibiani-based club to join the Phobians.
Amofa, who formerly competed in the Ghana Premier League with Liberty Professionals, is anticipated to bolster the team's defense in front of the upcoming season.
"Joining Hearts of Oak, one of the largest clubs in Africa, makes me extremely delighted," he declared.
Along with Nations FC's Asamoah Boateng Afriyie and Michael Awuah, he becomes the club's third signing of the window.
They will also play a friendly match against Medeama SC five days later as part of Tarkwa T&A Park's launch.