Remote Principal iOS On-Device Translation Engineer

Dev Technology Group; Washington (District of Columbia); Hybrid; USD 100,000 - 160,000; Full time

Benefits offered by this job

Flexible time-off policy

Telework options

Tuition reimbursement

401K matching

Job summary

Dev Technology Group is seeking an experienced iOS Engineer to own an on-device translation platform for real-time speech translation on constrained iPhone hardware. You will drive architecture, performance, and production releases of the iOS app, integrating on-device ML and ensuring robust real-time audio processing.

The role involves AVAudioEngine-based pipelines, Swift concurrency, and working in a federal accreditation environment with security/compliance teammates.

Qualifications

• 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, TensorFlow Lite, or similar).
• 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 layers.
• Ability to hold a clearance and work in a federal compliance environment (FISMA experience is a plus, not a requirement).

Responsibilities

• The iOS application: architecture, performance, memory management, and production releases
• Integration of on-device ML inference frameworks (Core ML, ONNX Runtime, WhisperKit) — loading, lifecycle, error recovery — not training the models
• Real-time audio pipeline: AVAudioEngine, voice activity detection, buffer management at hardware-thread priority
• Swift concurrency across all of the above without data races, deadlocks, or jetsam kills on 6GB devices

Skills

Swift

iOS architecture

Audio frameworks

ML frameworks

Instruments

URLSession

Swift packages

Security clearance

Tools

AVAudioEngine

AudioUnit

Core ML

ONNX

TensorFlow Lite

Job description

Dev Technology Group is seeking an experienced iOS Engineer to own an on-device translation platform for real-time speech translation on constrained iPhone hardware. You will drive architecture, performance, and production releases of the iOS app, integrating on-device ML and ensuring robust real-time audio processing.

The role involves AVAudioEngine-based pipelines, Swift concurrency, and working in a federal accreditation environment with security/compliance teammates.