Don Mallow
@donmallow
iOS engineer specializing in SwiftUI, modern concurrency, and shipping production mobile apps.
What I'm looking for
I am an iOS engineer with six years of experience building production apps, modernizing legacy projects, and contributing to Apple’s Develop in Swift curriculum. I embrace SwiftUI and structured concurrency to create maintainable, performant applications that delight users.
At Nutrisystem/Jenny Craig I transitioned UIKit codebases to scalable Swift/SwiftUI apps, implemented XCTest suites, StoreKit 2, REST API integrations, and payment flows. I helped increase engagement and reliability through testing, profiling, and CI/CD practices.
Earlier I built a regional Vineyard Association app that improved traffic and sales, implemented CoreData persistence, geofencing with MapKit, push notifications, and native SwiftUI components. I collaborate closely with product and design to iterate and deliver impactful user experiences.
Experience
Work history, roles, and key accomplishments
Contributed to the Develop in Swift App Development course, delivering views, data storage, and UX refinements while producing curriculum-aligned app examples and documentation.
iOS Developer
Nutrisystem
Nov 2022 - Mar 2025 (2 years 4 months)
Led migration of legacy UIKit projects to scalable Swift/SwiftUI apps using MVVM and async/await, implemented StoreKit 2 and payments, and built XCTest suites for REST API coverage.
iOS Developer
Fair Play Winery Association
Jun 2018 - Nov 2022 (4 years 5 months)
Built a vineyard association app that increased traffic 25% and regional sales, implementing Core Data persistence, geofencing with MapKit, push notifications, and inventory-linked tasting profiles.
Education
Degrees, certifications, and relevant coursework
National University
Master of Science, Computer Science
Master of Science in Computer Science from National University in La Jolla, CA.
The Ohio State University
Bachelor of Science, Computer Science
Bachelor of Science from The Ohio State University in Columbus, OH.
Availability
Location
Authorized to work in
Job categories
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