Cognizant in Barcelona is seeking an experienced Senior i OS Developer to design, implement, and maintain high-performance i OS apps. You will build real-time voice features using Swift, Objective-C, and C/C++, collaborate with cross-functional teams, and ensure robust app performance and security across the Apple ecosystem. You will contribute to architecture, code reviews, testing, and release processes, delivering scalable mobile solutions for our clients while thriving in an Agile environment #J-18808-Ljbffr