> Markdown version of [/jobs/ext/1267293-senior-ios-developer](https://www.wearedevelopers.com/jobs/ext/1267293-senior-ios-developer). 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 Developer - **Company:** Cognizant - **Location:** Barcelona, Spain - **Contract:** Permanent contract - **Skills:** Testing (Software), Clean Code Principles, Agile Methodology, IOS Applications, Applications Architecture, Application Performance Management, App Store (IOS), C++ (Programming Language), Code Review, Continuous Integration, Mobile Application Software, Performance Tuning, Release Management, Software Engineering, WebRTC, Swift (Programming Language), Information Technology, Objective C++, Software Version Control - **Published:** July 15, 2026 - **Apply:** https://dejobs.org/x/x/85157BD4AD134C1F9FDC45BEFFBC531A/job/ ## About the Role Bachelor's degree in computer science, Engineering, or a related field. Proficiency in Swift, Objective-C, and C/C++. Solid understanding of iOS application architecture, performance optimization, and development best practices. Experience working within Agile development environments. Demonstrated problem-solving, analytical, and collaboration skills. Experience with CI/CD pipelines, version control systems, software testing, and technical documentation is preferred. Knowledge of mobile application deployment and maintenance processes within the Apple ecosystem. ## Description We are seeking an experienced Senior iOS Developer is sought to support the development, enhancement, and maintenance of iOS mobile applications. This role focuses on designing, implementing, and optimizing high-performance, real-time communication features for iOS platforms using Swift, Objective-C, and C/C++. The individual in this role will collaborate with cross-functional teams to deliver secure, scalable, and reliable voice communication capabilities that contribute to modern mobile communication solutions and enhance the user experience., Contribute to the implementation, enhancement, and release of the MCX application for iPhone. Design, develop, and maintain high-quality real-time communication features for iOS devices. Implement reliable and scalable voice communication capabilities using Swift, Objective-C, and C/C++. Collaborate with product, engineering, quality assurance, and other cross-functional teams throughout the software development lifecycle. Ensure application performance, security, stability, and compliance with development standards. Participate in code reviews, testing activities, troubleshooting, and continuous improvement initiatives. Support the publication, maintenance, and release management of applications within the Apple ecosystem, including the App Store and related distribution channels. Contribute to technical documentation and knowledge-sharing activities within the development team. ## Related Videos - [An (In-)Complete Guide to C++ Object Lifetimes](https://www.wearedevelopers.com/videos/1060-an-in-complete-guide-to-c-object-lifetimes) - [Are Code Reviews Worth It? Insights from 16 Years of Review Data](https://www.wearedevelopers.com/videos/1135-are-code-reviews-worth-it-insights-from-16-years-of-review-data) - [Transforming Education: A Journey from interactive Markdown to Remote-Labs](https://www.wearedevelopers.com/videos/941-transforming-education-a-journey-from-interactive-markdown-to-remote-labs) - [There's an app for that - on the role of cross platform development in the app development ecosystem](https://www.wearedevelopers.com/videos/278-there-s-an-app-for-that-on-the-role-of-cross-platform-development-in-the-app-development-ecosystem) - [Unleash your web skills on native!](https://www.wearedevelopers.com/videos/122-unleash-your-web-skills-on-native) - [SwiftUI In Production](https://www.wearedevelopers.com/videos/134-swiftui-in-production) ## Related Articles - [Cross Platform Mobile Development Frameworks to Use in 2025](https://www.wearedevelopers.com/magazine/404-cross-platform-mobile-development-frameworks-to-use-in-2025) - [A Guide to Choosing the Right Tools for App Developers](https://www.wearedevelopers.com/magazine/391-a-guide-to-choosing-the-right-tools-for-app-developers) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers)