iOS Engineer - On-Device Translation Platform | DHS/ICE Mission Environment What You'll Build A real-time speech translation app that runs entirely on-device: audio capture → speech recognition → translation → text-to-speech, coordinated across multiple services on hardware-constrained iPhones. You'll integrate vendor-provided ML models, manage background OTA model delivery from AWS, build peer-to-peer device communication, and ship to production through a federal accreditation pipeline. What You'll Own • 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 What You Bring • 5+ 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 - you'll have security and compliance teammates) The estimated salary range for this position is $100,000 - $160,000.This salary range is not a guarantee of compensation. The offered salary will be based on factors including relevant experience, geographic location, internal equity, and applicable contractual requirements. *Compensation may fall outside this range when appropriate. Who We Are Dev Technology is a growing IT company with an employee-centric culture that works on mission-critical projects for the federal government. We partner with our federal customers to deliver technology services and solutions, and to drive our clients’ missions forward through innovation. We use Agile and DevSecOps principles to provide services including application development, biometrics and identity management, cloud and infrastructure optimization, IT and legacy modernization, and data management. As a Washington Post Top Workplace award winner for the past THIRTEEN years in a row, the Top Workplaces USA for the past five years, and a recipient of the Companies As Responsive Employers (CARE) Award for the past six years, Dev Technology employees enjoy: • 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 Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans Dev Technology Group operates in the following states: AL, AR, AZ, CO, DC, FL, GA, ID, IL, IN, MD, MA, ME, MI, MN, MO, MS, NC, NJ, OH, OR, PA, SC, TN, TX, VA, WV. SMS Terms and Privacy Notice Dev Technology Group offers you the option to engage in SMS text conversations about your job application. By participating, you also understand that message frequency may vary depending on the status of your job application, and that message and data rates may apply. Please consult your carrier for further information on applicable rates and fees. Carriers are not liable for delayed or undelivered messages. Reply STOP to cancel and HELP for help. By opting-in to receiving SMS text messages about your job application, you acknowledge and agree that your consent data, mobile number, and personal information will be collected and stored solely for the purpose of providing you with updates and information related to your job application. No mobile information will be shared with third parties/affiliates for marketing/promotional purposes. All the above categories exclude text messaging originator opt-in data and consent; this information will not be shared with any third parties.