Jones, who has also gathered substantial experience during numerous spells in Asia, will re-join the Jets from 6 July when recently appointed new coach Scott Miller officially begins.
Jones will be responsible for the planning and delivery of first-team strength and conditioning, including injury prevention, nutrition and recovery.
While Jones will be aligned to the medical department including head physiotherapist Justin Dougherty, he will also work closely with Jets senior assistant coach Jean-Paul de Marigny in the team's pre and post-match analytical phases. This will include video analysis, match coding and opposition scouting.
Miller said Jones would play an important role within the club's football department.
"The position of head of performance is a crucial one in the A-League," Miller explained. "Why Mark Jones was of interest to me was because of his skill-set and what he can bring to the club."
Jones said he was delighted to be back involved with his hometown club.
"I'm a Newcastle person and, for me, I just want to help secure a better result for the team and a better outcome for the club.
"I have a responsibility to do the strength and conditioning, the video analysis and assist with the technical side of the delivery of the football program, but I will help in any way I can to ensure that we get a better result," Jones said.
