Michael Edgcumbe

Accomplished Product Design and Founding Engineer with over 12 years of experience in mobile development. Specialize in designing, developing, and launching innovative user experiences, most recently for visionOS. Expertise in immersive technologies like AR/VR, integrating SwiUUI, RealityKit, and Unreal Engine into cuting-edge solutions. Skilled in user-centered design, rapid prototyping, cross-functional collaboration, and data-driven decision-making.

iOS Application Engineering *

• Architected and replaced a legacy Abstract Syntax Tree (AST) ranking engine with a modern, cross-platform executor, improving system maintainability and performance.
• Achieved a 41% reduction in P90 latency (from 616ms to <380ms) for a core product feature, directly improving the user experience for millions of daily active users.
• Own and analyze performance metrics to drive data-informed engineering decisions for a large-scale, consumer-facing mobile product.
• Collaborated daily with product, design, and analytics teams to translate user needs into tangible performance improvements.

• Led the 0-to-1 development of new AI-powered consumer applications for iOS and visionOS, owning the entire product lifecycle from initial concept and user research to App Store launch.
• Deployed on-device Large Language Models (LLMs) and custom generative AI models (LLaMA, Vision, CoreML).
• Acted as a Founding Engineer & Product Architect, establishing development standards and processes for new mobile experiences.
• Engineered a high-performance media pipeline using Metal, RealityKit, and SwiftUI for synchronized 2D/3D AR overlays.
• Architected and built fluid, high-performance user interfaces entirely with SwiftUI, focusing on great UX and reusable components.
• Built and launched Tula House, a spatial computing application for visionOS, from concept to App Store deployment.

• Led rapid prototyping for on-device ML and AR features for Google Maps, building high-fidelity proofs-of-concept that directly influenced product roadmaps.
• Developed and patented a novel user experience concept that set the design and architectural direction for core engineering teams.
• Designed and built comprehensive, interactive prototypes demonstrating 35 end-to-end user journeys, which was instrumental in user research and securing leadership buy-in.
• Integrated diverse technologies (ARKit, MLKit, Firebase, GCP, Unreal Engine) to validate advanced AI-driven experience concepts with live data.
• Worked as a key partner to product and design teams, translating deep user insights into feasible, elegant technical solutions.
• Leveraged Google Cloud Platform for deploying and managing machine learning models used in iOS prototypes.

• Contributed to a large, cross-functional team to ship features for a subscription-based educational app with over 250,000 MAUs.
• Refactored major components, including the main navigation controller and audio asset handling, to improve performance and user experience.
• Established and configured CI/CD pipelines using Bitrise to streamline the development and release process.
• Designed and implemented a dynamic, CMS-driven contextual onboarding system.
• Collaborated on the implementation of OAuth for partner subscribers.

• Executed maintenance and feature development sprints for a popular social gaming app with over 300,000 MAUs, maintaining a 99.7% crash-free rate.
• Refactored the in-app purchase store and enhanced core UI components using Auto-Layout.
• Adjusted the distribution of in-app currency and pop-up advertisements to optimize monetization.

Screenshots

• Developed the MTV News iOS application, delivering pixel-perfect UI and animations for a major media brand.
• Integrated multiple social network sharing APIs (iMessage, Instagram, Facebook, etc.).
• Customized the GoNative wrapper to integrate native features with web content.

Video

mtv_news.m4v

Screenshots

• Acted as the sole engineer, handling both backend (Parse) and native iOS development to launch the initial product from scratch.
• Implemented a pixel-perfect design with a focus on seamless transitions and a custom card layout.
• Authored an administrative tool for database management.

Screencast

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Screenshots

• Designed and implemented core architecture for a cross-platform photo service, including the network client, CoreData model (MVVM), and a custom gallery layout algorithm.
• Developed a system to fetch photos from first-party and third-party repositories in both foreground and background processes.
• Built custom interfaces in Auto-Layout, including a card-based memory feed and collage editing view

Video

yarn.m4v

yarn_order_photos.m4v

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Screenshots

• Led a complete rewrite of the client interface to implement a new design for an on-demand booking application.
• Integrated multiple third-party SDKs for push notifications (Kahuna), analytics (mParticle), and credit card transactions.
• Produced and presented a data visualization of the purchase funnel to co-founders to inform user flow design.

Video

beautified.m4v

Screenshots

• Refactored an iPhone-only client into a universal app for both iPhone and iPad.
• Fixed critical, time-sensitive bugs in the in-app purchasing system for consumer-facing applications.
• Improved the performance and transition speed of scrolling through views with large image assets.

Weather Whiskers Screenshots

Smiley Central Screenshots