Swift is the easy part of iOS hiring. The difficult and valuable knowledge is everything around the language: how releases are managed when a bad build stays live until a new one clears review, what the store will and will not accept, and how to keep an app fast and small on devices that are not new.
Hire dedicated iPhone developer talent on release discipline, not language fluency
Mobile releases are batched and effectively irreversible: you cannot hotfix in minutes the way you can on the web, and a defect stays with users until a replacement is reviewed and rolled out. Ask a candidate how they stage a release, whether they use phased rollout, how they gate risky changes behind a remote flag, and what they do when a crash spike appears after release. Someone who has shipped a real app answers immediately and with scars.
Store review is knowledge worth paying for when you hire dedicated iOS developers
Apple's App Store Review Guidelines decide what you can ship and when, and the recurring traps are consistent: account deletion must be available in app if you offer account creation, permission requests need justification, subscriptions have disclosure requirements, and user generated content needs filtering, reporting and blocking. A developer who has been rejected and resolved it is materially more useful than one who has only built, because rejections cost days at the worst moment.
Ask about the unglamorous engineering
App size, cold start time, memory behaviour on older devices, background task handling and battery impact are what users actually feel, and none of them appear in a portfolio. Ask what they would profile first in a sluggish app, how they decide between native frameworks and a dependency, and how they handle state restoration when the system terminates the app. These questions separate people who have maintained an app from people who have launched one.
Accounts, ownership and continuity
Whoever you hire, keep the developer account, signing certificates and provisioning profiles in your own name with the developer granted access. Require an express written copyright assignment, since under 17 USC 101 commissioned software is not automatically a work made for hire. And if you are contracting through an agency, name the individual, because iOS knowledge is deep and personal and a replacement is not a like for like substitution.
Questions people ask about hire swift developer
When you hire iPhone app developers, what matters more than Swift fluency?
Release discipline and store review experience. Mobile defects stay live until a replacement clears review, so phased rollout, remote feature flags and crash response are the skills that protect you. Language fluency is comparatively easy to find.
What causes most iOS submission rejections?
Missing in-app account deletion when accounts are offered, unexplained permission requests, subscription disclosure problems, and inadequate controls on user generated content. All are published in the App Store Review Guidelines and all are avoidable in design.
Who should own the Apple developer account?
You, with the developer granted access. The account holds the app's identity, reviews and install base, and recovering it from a departed contractor is painful when it is possible at all.