Derek Mordarski

About

Senior iOS Engineer with 10+ years of native iOS development experience, specializing in Swift, SwiftUI, and UIKit. Expert in building and delivering scalable, high-performance consumer applications serving millions of users. Proven track record architecting modern iOS solutions using MVVM, Combine, RxSwift, and integrating complex backend systems. Strong background in mobile app lifecycle management from design to App Store deployment, with additional expertise in Android and enterprise Java environments. Portfolio of published mobile applications available upon request.

Experience

• Senior Mobile Software Engineer · Napster Corp. (formerly Infinite Reality)04-01-2022 – 12-01-2025

  Led iOS development across metaverse R&D, SDK engineering, AI integration, and consumer music apps. Built an iOS metaverse app using Unreal Engine capturing live AV from a user's device and projecting it into a real-time 3D multiplayer scene with virtual camera broadcasting to YouTube and Twitch. Designed and developed a Unity SDK for multiplayer and live AV streaming. Architected a TypeScript package wrapping Shopify's API with a WebSocket connection to an LLM for AI-powered product discovery. Ported the social feed feature from a retiring app into the Napster Music app.

• Sr Mobile Software Engineer · Dynata04-01-2013 – 04-01-2022

  Designed and developed QuickThoughts and iPoll iOS apps for mobile marketing research, featuring location-based survey capabilities and offline data support. Built an offline-first data layer, collaborated with UX to implement MVVM architecture; integrated with a scalable backend API platform. Implemented CoreLocation geofencing and background location tracking for proximity-based survey triggers; explored BLE beacon-based services and optimized battery usage. Built secure authentication and data synchronization with URLSession, Keychain, Core Data, and RESTful services. Delivered end-to-end mobile solutions for large-scale consumer research apps.

• Senior Android Developer · Parallel Logic02-01-2013 – 05-01-2013

  Developed an Android application for the energy resource field for collecting customer information and generating quotes for energy saving programs.

• Senior Android Developer · deets, Inc.09-01-2012 – 03-01-2013

  Designed and developed a group communicator Android application on the Android platform allowing members to communicate in private groups with multiple profiles. The application also allows for contact synchronization between deets members and the user’s mobile device.

• Senior Software Engineer · IPC Systems, Inc.07-01-2009 – 09-01-2012

  Served as Java/J2EE and .NET Senior Software Engineer for a large telephony product used by Traders around the world. Aided in designing and developing the Pulse Mobile (v2) iPad application. Designed and developed server-side application framework deployed on Oracle Communications Converged Application Server. Developed desktop application core and plugin framework. Created UI using WPF. Wrote softphone component leveraging the SofiaSIP stack and Global IP Solutions Voice Engine.

Education

• Lyman Hall High School

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