Former All Star Paddy Bradley made a goal-scoring return after eight months out with a torn cruciate ligament.
But there was bad news for UUJ as Antrim and St Gall's star CJ McGourty sustained a suspected broken ankle in the first half of what proved an open and entertaining encounter.
Derry led 0-8 to 0-5 at the interval but Bradley's intervention in palming home after an intricate move on 52 minutes proved decisive despite Jordanstown's attacking endeavour.
Scorers - Derry: C O'Boyle 0-5 (3f), P Bradley 1-1, E Lynn 0-4, (3f) M Lynch 0-3, G O'Kane 0-2, C Gilligan 0-1. UUJ: K Hughes 0-4 (4f), D McNulty 0-3, E Wade 0-2, C McGinty, N McAdam, C Clarke, C Donnelly (1f), P Devlin 0-1 each.
DERRY - P Morgan; B McCallion, L Morrow, R Dillon; A McAlynn, D McBride, M Bateson; J McCamley, N Holly; N Forrester, M Lynch, G O'Kane; E Lynn, C O'Boyle, Ciaran McGoldrick. Subs: M Drumm for Bateson (h-t), P Bradley for McGoldrick (43), J Diver for Holly (48), C Gilligan for McAlynn (55).
UUJ - S McCormack; N Donnelly, A McClean, R Pickering; C McGinty, L McLoone, E Wade; J Carron, N McAdam; C Clarke, C Donnelly, C Sheridan; CJ McGourty, K Hughes, D McNulty. Subs: P Devlin for McGourty (24), D Mone for Clarke (55), C Davey for McGinley (67), C Duggan for Carron (67).
Ref - S McNamee (Tyrone).