iOS Developers for App Store Releases and Objective-C Takeovers

iOS developers at Cortance are engineers who take an app through App Store review and keep it stable after launch. Most of the iOS profiles we match are senior-level. Their project history covers subscription apps, VPN clients on Apple's NetworkExtension framework, enterprise document apps and Apple Watch and Apple TV builds.

We match on that history because the costly part of iOS work is rarely the first version. It is the release that fails review a week before launch, the Objective-C module nobody wants to touch, or the crash that only appears on older devices.

iOS engineers who own the release, not only the code

On many small teams nobody owns App Store Connect until something breaks. Dmytro K. handled that end to end on Vivi AI Academy and Cleanero: backlog, release planning, StoreKit subscriptions and App Store publication. On EmberVPN he also built the VPN layer with NetworkExtension and IKEv2. That is the kind of entitlement-heavy feature where a missing privacy disclosure or a wrong capability setting sends a build back from review. Apple's yearly SDK requirement adds to this. Every upload has to be built with a recent Xcode, so an app untouched for a year often needs work before it can ship a one-line fix. When a client tells us who will own releases, we look for engineers who have done it themselves.

Can an iOS developer take over an old Objective-C and UIKit codebase?

Yes, and in our network that work is common. Mychailo S. has maintained Glasscubes, a business collaboration app built in Objective-C and Swift. New features there have to ship without breaking backward compatibility for teams already using it. Karim A. modernized legacy code on a long-running food delivery app while adding location and map features. The failure mode we screen for is the eager rewrite. A team moves a working UIKit screen to SwiftUI mid-release, then spends the next sprint on layout and state bugs that did not exist before. A senior engineer migrates screen by screen, when the product has a reason for it.

iOS work beyond the iPhone: Apple Watch, Apple TV and Mac

Some products live on more than one Apple platform. Karim built subscription and registration flows for a personal security app with an Apple Watch companion. Severyn K. led tvOS and iOS channel apps for Cellcom, including live and on-demand video, music stations and parental controls on a shared SDK. Ivan D. worked on both the iOS and Mac versions of Readdle's Documents and PDF Expert. A large shared codebase and heavy file handling there leave no room for work on the main thread. If your roadmap includes a second Apple platform, we match for that from the start.

Use AI coding tools where they save an iOS team time

For example, Leonid L. used Cursor and project-specific AI tooling on a secure enterprise messenger. He debugged, refactored and navigated its large codebase, where legacy and modern code sit side by side. Mychailo also lists Codex on his profile. These tools shorten boilerplate, test setup, and searching through an unfamiliar project. They don't decide who owns an object in a closure, whether a background task will be killed on an older device, or what goes into the app's privacy disclosures. Those calls stay with the engineer, and we check them before a profile reaches you.

Send us your iOS version targets, the state of the codebase and what the next release has to include, and we will shortlist engineers with matching project history. See how hiring works at Cortance.