6’4 centre forward Jack, who can also play in central defence, joined Dumbarton in February 2026 after an impressive first-half of the season at Edinburgh City – where he scored six times in his debut campaign in the SPFL.

24-year-old Jack started his career with Hibernian, before spending time with Livingston, Cowdenbeath, Tranent, Broxburn and in Northern Irish football with Portadown and Dundela.

Now he’s signed up at The Marbill Coaches Stadium, having already impressed against us for the Citizens earlier in the season.

Boss Frank McKeown said: “Jack is someone who caught my eye during his time with Edinburgh. He’s a very physical, powerful player who is a real handful for defenders and has a determination to be a success as a Dumbarton player.

“He’ll add a new dimension to our attack and is someone who has all the attributes and leadership qualities to be a big player for us this season. We’re looking forward to working with him.”