OM

Oliver M. Paray

Available to hire

I’m an experienced iOS and Android developer who loves turning complex requirements into clean, reliable apps.

About

I’m an experienced iOS and Android developer who loves turning complex requirements into clean, reliable apps. I specialize in Swift, SwiftUI, Objective-C, Kotlin, and Jetpack Compose, and I’m proficient with testing automation using Appium, BrowserStack, and XCUITest. I enjoy delivering high-quality mobile products for media streaming, healthcare, education, and retail, and I’m always eager to contribute to innovative projects with a collaborative, hands-on approach.

Over the years I’ve worked across multiple industries, led or contributed to ground-up rewrites, and helped teams choose the right technology strategy. I stay curious, continuously learn new tools, and thrive in fast-paced environments where delivering great user experiences matters as much as solid architecture and maintainability.

  • 13 years' experience
  • Joined September 2025

Industry experience

  • Media & Entertainment
  • Healthcare
  • Education
  • Retail
  • Software & Internet
  • Computers & Electronics

Work experience· 48 roles

Mobile Application Developer · TekSystems / AppleApr 2025 – Sep 2025 · 6 mos

Developed Swift/SwiftUI iPad/MacOS internal apps and a cross-platform Swift package for internal use at Apple. Utilized Swift 6 Concurrency and reactive technologies (Combine) to boost performance and reliability. Built automated tests with Xcode, Swift Testing, and XCUITest; integrated third-party frameworks via Swift Package Manager to enhance capabilities and streamline development.

Mobile Application Developer · TekSystems / AppleApr 2025 – Sep 2025 · 6 mos

Developed Swift/SwiftUI iPad/MacOS applications for internal Apple usage, utilizing Swift 6 Concurrency and reactive technologies such as Combine; built a cross-platform Swift package; developed automated tests with Xcode, XCTest and XCUITest; integrated third-party frameworks via Swift Package Manager.

Mobile Application Developer · TekSystems / AppleApr 2025 – Sep 2025 · 6 mos

Completed a short-term on-site contract in Culver City, CA, ensuring project milestones were met and client expectations satisfied. Developed Swift/SwiftUI iPad/MacOS applications for internal use at Apple, utilizing Swift 6 Concurrency to enhance performance and reliability, and leveraged reactive technologies such as Combine. Built a cross-platform Swift package for internal use at Apple, integrating internal frameworks for seamless functionality. Created automated tests using Xcode, Swift Testing and XCUITest to validate code and user experience. Integrated various third-party frameworks via Swift Package Manager to enhance capabilities and streamline development.

Mobile Application Developer · TekSystems / AppleApr 2025 – Sep 2025 · 6 mos
Mobile Application Developer · Wescom Credit UnionMay 2024 – Sep 2025 · 1 yr 5 mos
Mobile Application Developer · Wescom Credit UnionMay 2024 – Sep 2025 · 1 yr 5 mos
Mobile Application Developer · Wescom Credit UnionMay 2024 – Sep 2025 · 1 yr 5 mos
Mobile Application Developer · Wescom Credit UnionMay 2024 – Sep 2025 · 1 yr 5 mos

Education

Bachelor's degree · University of Southern California1992 – 1996
Computer Engineering and Computer Science · University of Southern California1992 – 1996
B.S. in Computer Engineering and Computer Science · University of Southern California1992 – 1996
Bachelor of Science in Computer Engineering and Computer Science · University of Southern California1992 – 1996

Hire Oliver M. Paray today

Post a job and invite Oliver, or contact them directly. No hidden commission.

Post a job