> Markdown version of [/jobs/ext/3761326-senior-ios-engineer-real-time-voice-performance](https://www.wearedevelopers.com/jobs/ext/3761326-senior-ios-engineer-real-time-voice-performance). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Ios Engineer: Real-Time Voice & Performance - **Company:** Cognizant - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Agile Methodology, Apple IOS, C++ (Programming Language), Software Engineering - **Published:** October 15, 2026 - **Apply:** https://www.buscojobs.com.es/senior-ios-engineer-real-time-voice-performance-en-madrid-ID-376037547 ## About the Role Cognizant in Barcelona seeks an experienced Senior iOS Developer to drive design and implementation of high-performance voice communication features for iPhone apps.You'll collaborate with product, engineering, QA, and cross-functional teams throughout the software lifecycle, ensuring secure, scalable delivery within the Apple ecosystem.Candidates should be proficient in Swift, Objective?C, and C/C++, with Agile experience and strong problem-solving skills. #J-*****-Ljbffr ## Description Cognizant in Barcelona seeks an experienced Senior iOS Developer to drive design and implementation of high-performance voice communication features for iPhone apps.You'll collaborate with product, engineering, QA, and cross-functional teams throughout the software lifecycle, ensuring secure, scalable delivery within the Apple ecosystem.Candidates should be proficient in Swift, Objective?C, and C/C++, with Agile experience and strong problem-solving skills.#J-*****-Ljbffr