Mobile Software Engineer - iOS Performance

May 25, 2026
Apply for this position
Get daily iOS jobs and salary updates
Join iOS Market Pulse →

Team

Join TikTok's Creation Experience team, delivering core video production technologies across mobile platforms for hundreds of millions of creators. You'll work on camera features, non-linear editing on mobile devices, UGC creation workflows, and optimize performance of next-generation camera technologies.

Responsibilities

• Profile and optimize video creation performance and quality, refining user experience in every possible video production workflow for TikTok
• Develop new content creation features to support business requirements
• Bridge project communication and coordination across multiple teams for successful delivery of latest mobile video technologies

Requirements

• Bachelor or above degree in Computer Science or related majors
• Solid coding skills with Swift/Objective-C
• 3+ years of software development experience with iOS
• Familiar with multi-threading, common data structures, and common software design patterns
• Experience with performance monitoring, profiling, and optimization for mobile apps (CPU/GPU/memory usage and power consumption)

Preferred Qualifications

• Experience with applying on-device machine learning to product experience improvement
• Experience with applying AI into daily work process and product experience improvement
• Experience with one or more software frameworks: FFmpeg, Metal/OpenGL, AVFoundation, VideoToolBox
• Experience with one or more video codecs: H.264, H.265, etc.

Benefits

• Discretionary bonuses/incentives
• Restricted stock units
• Medical, dental, and vision insurance (day one)
• 401(k) savings plan with company match
• Paid parental leave
• Short-term and long-term disability coverage
• Life insurance
• Wellbeing benefits
• 10 paid holidays per year
• 10 paid sick days per year
• 17 days of Paid Personal Time (prorated upon hire, increasing with tenure)
• Opportunity to work on TikTok's core video creation technologies used by hundreds of millions of creators worldwide
• Global headquarters in Los Angeles and Singapore with offices worldwide
• Equal opportunity employer

Apply for this position

Sponsored Jobs

In partnership with
Looking for your next iOS opportunity?

Join the Mobile Signal Talent Directory and make your profile visible to hiring teams searching for iOS talent.

Join the Directory
© 2026 Mobile Signal. All rights reserved.
Made by
Stan
linkedin