Senior iOS Developer - SWIFT / Objective C

Job Summary

We are seeking an experienced and highly skilled Senior iOS Developer with 7+ years of experience in building complex iOS applications focused on audio / video streaming, real-time communication, and low-level multimedia processing. The ideal candidate will have deep knowledge of frameworks like AVFoundation, CoreBluetooth, WebRTC, and streaming protocols such as RTP / UDP / TCP, HLS, and video / audio codecs like H.264 / H.265, MP4, G711, and Opus. Proficiency with Metal or OpenGL for custom rendering is highly Responsibilities :

• Design and develop advanced iOS applications with a focus on audio / video streaming and real-time communication.
• Integrate and optimize WebRTC, AVFoundation, and CoreBluetooth components.
• Implement and manage streaming protocols such as RTP, UDP, TCP, and HLS.
• Work with video codecs like H.264, H.265, MP4 and audio codecs such as G711 and Opus.
• Develop or integrate custom video rendering solutions using Metal or OpenGL.
• Troubleshoot and optimize streaming latency, buffering, and media sync issues.
• Collaborate with cross-functional teams including backend, design, and QA.
• Ensure code quality through unit testing, performance tuning, and memory management.
• Stay updated with the latest trends in iOS media technologies and streaming Skills & Qualifications :
• 7+ years of hands-on experience in native iOS development using Swift and Objective-C.
• Strong experience with :
• AVFoundation
• CoreBluetooth
• WebRTC
• RTP / UDP / TCP streaming protocols
• HLS streaming
• Video Codecs H.264, H.265, MP4
• Audio Codecs G711, Opus
• Metal or OpenGL for rendering
• In-depth understanding of low-latency media streaming, buffering, and adaptive bitrate streaming.
• Familiarity with iOS network stack, sockets, and custom media pipelines.
• Experience optimizing CPU / GPU usage for media-heavy apps.
• Proficient with Xcode, Instruments, and debugging performance issues.
• Strong problem-solving, debugging, and analytical skills.
• Excellent communication and collaboration abilities.

(ref : hirist.tech)

Skills Required

Xcode, Tcp, Udp, Metal, Instruments, Opus, h.264, Objective-c, Rtp, hls , Mp4, Opengl, Webrtc, Swift