Jamie Devitt has previously played for Hull City, Darlington, Shrewsbury Town, Grimsby Town, Bradford City, Accrington Stanley, Rotherham United, Chesterfield and Morecambe.
Danny Grainger's last-gasp winner for Carlisle denied Newport County a point.
Jamie Devitt put Carlisle two goals in front within 12 minutes, sliding home to finish and then curling home from long-range past the despairing Joe Day.
Newport forward Padraig Amond gave Newport heart by heading home to reduce the arrears before the interval.
Dan Butler thought he had earned Newport a point on 87 minutes with an equaliser, but Danny Grainger's late thunderbolt won the day for Carlisle.
Newport County manager Michael Flynn told BBC Sport Wales:
"I am gutted to lose that game, apart from the opening 15 minutes I thought the boys were absolutely outstanding, they played some of the best football this club will ever see.
"They were switching play, through balls, we ripped them apart at times.
"But you can't start games the way we did and we paid the price.
"But we could have had four penalties today and definitely should have had at least two stonewell penalties. You expect one of them."
