iOS Mobile Developer (Swift)

Dev Technology • Reston, VA

1d • $100,000 - $160,000 • Remote

About The Position

We are seeking an experienced iOS Mobile Developer to join our team. You will be responsible for building a real-time speech translation app that runs entirely on-device. This includes audio capture, speech recognition, translation, and text-to-speech, all coordinated across multiple services on hardware-constrained iPhones. Your work will involve integrating vendor-provided ML models, managing background OTA model delivery from AWS, building peer-to-peer device communication, and navigating a federal accreditation pipeline for production releases.

Requirements

• 5+ years of experience shipping production iOS apps in Swift.
• Direct experience with AVAudioEngine or AudioUnit at the hardware callback level.
• Proven track record of integrating ML or signal-processing frameworks into iOS apps (Core ML, ONNX, TensorFlow Lite, or similar).
• Proficiency in 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.

Nice To Haves

• FISMA experience is a plus.

Responsibilities

• Develop and maintain the iOS application architecture, performance, memory management, and production releases.
• Integrate on-device ML inference frameworks (Core ML, ONNX Runtime, WhisperKit), including loading, lifecycle management, and error recovery.
• Implement and optimize the real-time audio pipeline using AVAudioEngine, including voice activity detection and buffer management at hardware-thread priority.
• Develop background model delivery systems with resumable multi-file downloads over URLSession, state persistence, and network transition handling.
• Implement peer-to-peer transcript sharing between devices using MultipeerConnectivity.
• Ensure Swift concurrency across all features without data races, deadlocks, or jetsam kills on 6GB devices.

Benefits

• Generous and flexible time-off policy
• Flexible work schedules and telework options, including remote work availability for eligible projects
• Career development opportunities including a mentorship program, technical and management training through Dev University, hands-on learning through DevLab, tuition reimbursement, and paid training opportunities
• Industry-leading benefits including a choice of two health plans that include dental and vision, flexible spending account, commuter benefits, life insurance, and more
• 401K matching with a 5% matching contribution
• Regular team and company social events including our annual party, happy hours, fitness challenges, and more
• A focus on community engagement including company wide support activities, employer match for donations, and time off for volunteer efforts

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed