Senior iOS Engineer (CoreML / Real-Time Audio)

Foundrr.lab is seeking a Senior iOS Engineer to build an iOS application with real-time on-device audio processing powered by CoreML. This role focuses on developing production-ready features where all ML logic runs fully on-device with strict privacy standards and no raw audio storage.

• Build and maintain the audio processing pipeline: Microphone → Audio processing → Feature extraction → CoreML inference → UI
• Optimize latency and CPU usage for real-time audio processing
• Ensure stability and reliability across different iOS devices
• Handle background audio execution and mode management
• Maintain strict privacy standards by preventing raw audio storage
• Work independently with minimal onboarding required

• Proven commercial production experience with CoreML
• Demonstrated experience building real-time audio pipelines
• Hands-on expertise with AVAudioEngine
• Experience integrating audio streams into ML models
• Experience running audio and ML features in background mode
• Performance optimization expertise on real devices
• Nice to have: Experience with Accelerate/vDSP, SoundAnalysis framework, and acoustic event detection

This is a production-ready position requiring immediate delivery capability with no onboarding period. The role demands independent work from day one with expertise in on-device ML and real-time audio processing.