Principal iOS Mobile Developer (Swift)

📋 Description

• The iOS application: architecture, performance, memory management, and production releases
• Integration of on-device ML inference frameworks (Core ML, ONNX Runtime, WhisperKit) — loading
• Real-time audio pipeline: AVAudioEngine, voice activity detection, buffer management at
• Background model delivery: resumable multi-file downloads over URLSession, state persistence
• Peer-to-peer transcript sharing between devices via MultipeerConnectivity
• Swift concurrency across all of the above without data races, deadlocks, or jetsam kills on 6GB

🎯 Requirements

• 8+ years shipping production iOS apps in Swift
• Direct experience with AVAudioEngine or AudioUnit at the hardware callback level
• Track record integrating ML or signal-processing frameworks into iOS apps (Core ML, ONNX
• Proficiency managing memory and performance on constrained devices using Instruments
• Experience with background URLSession and resilient download/upload systems
• Comfort with protocol-oriented architecture, multi-module Swift packages, and testable service

🎁 Benefits

• Generous and flexible time-off policy
• Flexible work schedules and telework options, including remote work availability for eligible
• Career development opportunities including a mentorship program, technical and management training
• Industry-leading benefits including a choice of two health plans that include dental and vision
• 401K matching with a 5% matching contribution
• Regular team and company social events including our annual party, happy hours, fitness challenges