MEMORANDUM **

Gerard Chang appeals pro se from the district court’s judgment dismissing his action alleging various state and federal causes of action against his former employer and colleagues. We have jurisdiction pursuant to 28 U.S.C. § 1291. We review de novo, Mpoyo v. Litton Electro-Optical *513Systems, 430 F.3d 985, 987 (9th Cir. 2005), and affirm.

The district court properly dismissed the action on res judicata grounds because Chang raised, or could have raised, his claims in a prior federal action that involved the same defendants and “transactional nucleus of facts,” and was decided on the merits. Id. at 987-89 (affirming dismissal of action based on the doctrine of res judicata); Holcombe v. Hosmer, 477 F.3d 1094, 1097 (9th Cir. 2007) (“Under res judicata, a final judgment on the merits of an action precludes the parties or their privies from relitigating issues that were or could have been raised in that action.”).

Chang’s remaining contentions are unpersuasive.

AFFIRMED.