Senior iOS Developer – VoIP/RTC

About the Role

We are seeking a highly experienced iOS developer with deep expertise in Swift, real-time communication (VoIP/RTC), and modular app architectures. You will lead the development of production-quality UCaaS/CCaaS mobile applications, focusing on VoIP, low-latency audio/video, and scalable architectures.

Location: Remote (India) – must have some overlap with Portugal timezone
Experience: 5–8 years in iOS development

Key Responsibilities

• Develop, maintain, and optimize iOS mobile applications for real-time audio/video communication.
• Implement features using Clean Swift (VIP), MVVM, or VIPER architectures.
• Integrate and troubleshoot CallKit, PushKit, and other VoIP/RTC flows.
• Collaborate with Android and Web teams to ensure consistent user experience across platforms.
• Build and maintain CI/CD pipelines (Fastlane, Codefresh, or similar) and automated testing.
• Monitor app stability and performance using Bugsnag, Crashlytics, or similar tools.
• Mentor junior developers and share best practices.
• Participate in agile workflows including backlog grooming, sprint planning, and estimation.

Core Requirements

• 5–8+ years of professional iOS development experience.
• Strong proficiency in Swift and the iOS SDK.
• Hands-on experience with modular architectures: VIP, MVVM, or VIPER.
• Experience with VoIP/RTC features (CallKit, PushKit, audio/video optimization).
• Solid understanding of networking, RESTful APIs, asynchronous programming, and background execution.

Preferred Skills

• Experience with Twilio or Acrobits SDKs.
• Familiarity with SIP and SFU architectures.
• Experience setting up and managing CI/CD pipelines.
• Exposure to app monitoring tools like Crashlytics/Bugsnag.

Skills Required:

Swift, iOS SDK, Clean Swift (VIP), MVVM, VIPER, CallKit, PushKit, VoIP, RTC, RESTful APIs, Networking, Asynchronous programming, Background execution, Production app development

Job Types: Full-time, Permanent

Pay: ₹1,200,000.00 - ₹2,000,000.00 per year

Benefits:

• Health insurance
• Paid time off
• Provident Fund
• Work from home

Education:

• Bachelor's (Required)

Experience:

• total work: 5 years (Required)