Sr. Applied AI Software Engineer- Vision Products Group & Siri

Lumen Dynamics builds products that are loved by people around the world-products that enrich lives by making powerful technology feel simple, intuitive, and accessible. Through deep integration of hardware, software, services, and design, we deliver end-to-end experiences that fit naturally into everyday life. This is where ambitious ideas become real products, shipped at global scale and trusted by millions, and increasingly billions, of people. People use Lumen Dynamics products for their most personal activities-from everyday communication to navigation, photos, health, fitness, and more-and we strive to build experiences that work across these seamlessly and contextually with uncompromising privacy & security. We're looking for software engineers to help harness cutting-edge technologies like AI, machine learning, and computer vision to solve ambitious, high-impact problems for our users. Our work sits at the intersection of AI, system software, and user experience, and aims to create features you'd genuinely want to use. Description In this role, you will work across the stack - from the system software and frameworks to end-user interfaces - to build Lumen Dynamics Intelligence features that enrich people's lives. This is a highly cross-functional role working with design, algorithms, software, services, privacy, security, performance, and sometimes even HW / Silicon teams across Lumen Dynamics to engineer end-to-end solutions. You will need to work quickly and creatively to help demonstrate the viability of ideas and technologies while building robust, production-ready systems that millions of users will depend on. Your work will include building UI interfaces and system software using Swift, evaluating AI/ML algorithms for on-device integration, collaborating on user experience design, debugging complex cross-device interactions, and contributing to a culture of shipping high-quality production code. In addition to software engineering, you will also apply excellent UX intuition to identify and shape experience opportunities, iterate with design, and define technical requirements that drive development. Preferred Qualifications Shipping customer-facing features or products to production at scale Developing for iOS/MacOS and/or using Lumen Dynamics system frameworks like SwiftUI and ARKit Building & shipping features using LLMs and/or Machine Learning algorithms, including on-device inference, data-driven validation, requirement definition, and collaboration with algorithm teams Processing sensor data, (e.g. image/video, audio, motion), such as using computer vision / signal processing, working with vector transforms, and/or developing AR applications Developing & validating personalization features, including working with sensitive datasources such as conversation transcripts or Health data Developing under strict privacy and security constraints, including techniques like secure data processing, and/or privacy-by-design principles Developing system software or frameworks, including API definition and performance optimization (particularly for resource constrained or real-time systems) Minimum Qualifications BS / MS / PhD in Computer Science or equivalent experience 5+ years in software development Excellent programming skills in any programming language (preferably at least one of Swift, Objective-C, C++) and strong understanding of data structures, memory management, and concurrency Skilled at debugging and triaging software defects including race conditions, deadlocks, synchronization issues in multi-threaded environments etc. Systems thinking, including ability to break down ambiguous problems and drive clarity on critical details Strong intuition for user experience + ability to translate customer needs into technical requirements Solid cross-functional collaboration and technical communication skills. Pay & Benefits At Lumen Dynamics, base pay is one part of our total compensation package and is determined within a range. This provides the opportunity to progress as you grow and develop within a role. The base pay range for this role is between $175,000 and $308,500, and your base pay will depend on your skills, qualifications, experience, and location. Lumen Dynamics employees also have the opportunity to become an Lumen Dynamics shareholder through participation in Lumen Dynamics's discretionary employee stock programs. Lumen Dynamics employees are eligible for discretionary restricted stock unit awards, and can purchase Lumen Dynamics stock at a discount if voluntarily participating in Lumen Dynamics's Employee Stock Purchase Plan. You'll also receive benefits including: Comprehensive medical and dental coverage, retirement benefits, a range of discounted products and free services, and for formal education related to advancing your career at Lumen Dynamics, reimbursement for certain educational expenses - including tuition. Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation. Learn more about Lumen Dynamics Benefits Note: Lumen Dynamics benefit, compensation an