Senior iOS Video Player Engineer - Live Streaming (Remote)

Kake; Warszawa; On-site; PLN 448,000 - 672,000; Full time

Benefits offered by this job

USD pay

Fully remote

Better Me Fund

Compassion culture

Job summary

Kake, a remote-first company and a people-first global community of senior engineers, is seeking a Senior iOS Video Player Engineer to own live playback experiences across iPhone, iPad, and Apple TV. You will design, build, and optimize playback in our high-scale streaming ecosystem.

The ideal candidate has 6+ years iOS development with Swift/Objective-C, strong HLS/AVPlayer expertise, and a track record of diagnosing playback issues, reducing startup time, and ensuring low latency while

Qualifications

• 6+ years of iOS development experience with Swift and Objective-C.
• Experience building and maintaining video players and live playback components for iOS/tvOS.
• Strong hands-on experience with HLS and AVPlayer, including tuning and troubleshooting playback behavior for live streaming.
• Demonstrated ability to debug and optimize playback performance, including rebuffering, startup time, and playback stability.
• Familiarity with video streaming protocols, live playback concepts (latency, live edge, drift), ABR logic, and DRM integration.
• Experience using video analytics or QoE metrics (e.g., Mux, Conviva) to diagnose and improve real-world playback performance.
• Excellent written and verbal communication skills in English.
• Ability to work independently in a remote, fast-paced environment.

Responsibilities

• Design, build, and maintain live video playback functionality for iOS and tvOS applications.
• Optimize HLS playback using AVPlayer, focusing on startup time, buffering, latency, and playback stability.
• Troubleshoot and resolve complex playback issues in live streaming environments, including errors, stalls, and drift from the live edge.
• Tune playback performance at scale to ensure reliable, high-quality viewing experiences.
• Use video analytics and QoE metrics to diagnose issues and improve real-world playback performance.
• Collaborate with cross-functional teams to ensure playback quality and reliability across devices.
• Contribute to best practices and continuous improvement initiatives across streaming projects.

Skills

iOS development

Swift

Objective-C

Video players

Live playback

HLS

AVPlayer

QoE metrics

English communication

Remote work

Remote work

Tools

Mux

Conviva

Job description

Kake, a remote-first company and a people-first global community of senior engineers, is seeking a Senior iOS Video Player Engineer to own live playback experiences across iPhone, iPad, and Apple TV. You will design, build, and optimize playback in our high-scale streaming ecosystem.

The ideal candidate has 6+ years iOS development with Swift/Objective-C, strong HLS/AVPlayer expertise, and a track record of diagnosing playback issues, reducing startup time, and ensuring low latency while