Senior / Lead IOS Engineer

Say hello to possibilities. It’s not everyday that you consider starting a new career challenge.  RingCentral, Inc. (NYSE: RNG) is a global leader in cloud-based communications and collaboration software. We are fundamentally changing the nature of human interaction—giving people the freedom to connect powerfully and personally from anywhere, at any time, on any device. The company provides unified voice, video meetings, team messaging, digital customer engagement, and integrated contact center solutions for enterprises globally. RingCentral's open platform integrates with leading business apps and enables customers to easily customize business workflows. We’re a $2 billion company that’s growing at 30+% annually and we’re expanding our  Engineering Team to make sure we stay ahead of the competition. RingCentral is headquartered in Belmont, California, and has offices around the world. About RingCX: RingCX is RingCentral’s next-generation AI-powered Contact Center solution , designed to deliver seamless, intelligent, and personalized customer experiences across digital and voice channels. Built with a modern microservices architecture and deep AI integrations, it empowers businesses to automate, analyze, and act in real-time. Join us in shaping the future of customer engagement — where speed, empathy, and intelligence converge. Be part of a team that’s redefining how the world connects.   Responsibilities Architect, build, and maintain complex, feature-rich iOS applications. Drive the adoption of modern iOS frameworks, best practices, and design patterns. Collaborate closely with product managers, designers, and backend teams to craft seamless user experiences. Ensure optimal app performance, memory management, and responsiveness. Lead by example—mentor team members, conduct code reviews, and uphold engineering standards. Continuously evaluate emerging iOS technologies and advocate for improvements in app architecture and tooling. Create the detailed design of mobile applications, components and key implementation technology. Review the software design and implementation done by the team. Resolve tough technical issues. Effectively communicate and articulate the design and technology to the management and engineering teams. Qualifications: 7+ years of experience developing native iOS apps. Expert-level proficiency in Swift, with working knowledge of Objective-C for legacy support. Deep understanding of iOS frameworks: UIKit, CoreData, CoreAnimation, Combine, SwiftUI, and Foundation APIs. Strong grasp of architectural patterns (MVVM, VIPER, Clean Architecture). Experience with asynchronous programming, concurrency, and multithreading (GCD, async/await). Proven expertise with unit testing, UI automation, and CI/CD (Fastlane, Bitrise, or GitHub Actions). Strong debugging and profiling skills using Xcode Instruments. Prior experience publishing and maintaining apps on the App Store. Nice to have: Experience building modular app architectures or multi-target frameworks. Knowledge of Reactive programming ( RxSwift or Combine ). Familiarity with GraphQL, WebSockets , or real-time data streaming. Hands-on experience with Firebase, Analytics, and Performance Monitoring . Exposure to Swift Package Manager or CocoaPods customization. Familiar with OpenGL ES Prior exposure to Contact Center or Telecommunications systems   What we offer:  Mediclaim Benefits Paid Holidays Casual/Sick Leave Privilege Leave Bereavement Leave Maternity Leave Paternity Leave Wellness Coaching Employee Referral Bonus Professional Development Allowances Night Shift Allowances RingCentral’s Engineering team works on high-complexity projects that set the standard for performance and reliability at massive scale. What kind of scale? Millions of users today and hundreds of millions tomorrow. This is  your chance to help imagine, develop and deliver products that raise the technological bar, and power human connections. If you’re a talented, ambitious, creative thinker, RingCentral is the perfect environment to join a world class team and bring your ideas to life.  RingCentral’s work culture is the backbone of our success. And don’t just take our word for it: we are recognized as a Best Place to Work by Glassdoor, the Top Work Culture by Comparably and hold local BPTW awards in every major location. Bottom line: We are committed to hiring and retaining great people because we know you power our success. RingCentral offers on-site, remote and hybrid work options optimized for the ways we work and live now.