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Hire Swift Developers From Latin America Who Take Swift Beyond the iPhone: macOS, SDKs, Servers and Swift 6.

Screened on Swift concurrency and memory management, architecture and testable code, English, and how they review AI-generated Swift.

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Swift talent network

Senior Swift developers for hire, available now.

A sample of senior Swift developers for hire from across LatAm, with production work on macOS apps, Swift packages and SDKs, Objective-C migrations, Swift 6 concurrency and Vapor services. Each one passed a live technical interview in Swift. Hiring for an iPhone or iPad app specifically? Our page on iOS developers covers that role. The full profile opens inside the platform.

+68,000
engineers in our talent network
88%
still on the team after year one
24–48h
average match time
2 weeks
from call to start
0–4h
overlap with U.S. teams
Maximiliano RVerified Expert
Senior Swift Engineer (macOS & iOS)
BrazilUTC −03:009 years of experience

Maximiliano refactored a macOS camera component that handles up to nine simultaneous 2K/60 FPS streams, using custom actors, Sendable types and async streams, with GCD only on the hottest paths. He bridges SwiftUI and AppKit for window and panel management, keeps legacy Objective-C interoperable, and has contributed backend services in Vapor.

SwiftSwift ConcurrencyAppKitSwiftUIAVFoundationCore ImageVaporObjective-C
Assessment score96%
Interview outputScorecard + recording
Hire Maximiliano R
Emiliano TVerified Expert
Senior Swift Engineer (macOS & iOS)
BrazilUTC −03:008 years of experience

Emiliano is building a VPN product from scratch with a reproducible, signed build pipeline across multiple platforms, including the macOS installer workflow at 80% unit test coverage. He upgraded the codebase to Swift 6 and modern concurrency, and split core logic into Swift packages to cut incremental build times.

Swift 6Swift Package ManagerAppKitSwiftUImacOSXCTestCI/CD
Assessment score95%
Interview outputScorecard + recording
Hire Emiliano T
Valentín CVerified Expert
Senior Swift Engineer (Libraries & Architecture)
BrazilUTC −03:006 years of experience

Valentín led an iOS team on an app used across many countries, where he implemented an internal payment library and planned the modular architecture that replaced legacy parts of the codebase. He works in Swift and Objective-C, supports CI/CD automation, and has built facial recognition and authentication flows.

SwiftObjective-CSwiftUISDK developmentModular architectureCI/CD
Assessment score95%
Interview outputScorecard + recording
Hire Valentín C
Lorenzo GVerified Expert
Senior Lead Swift Engineer (Full Stack)
BrazilUTC −03:0016 years of experience

Lorenzo writes Swift, SwiftUI and Objective-C, and builds APIs in Node.js and Express, with Python and TypeScript in his stack as well. He has led multinational teams while staying hands-on, handles concurrency with GCD, OperationQueue and async/await, and contributes to CI/CD and AI-assisted development workflows.

SwiftSwiftUIObjective-Casync/awaitNode.jsTypeScriptPython
Assessment score92%
Interview outputScorecard + recording
Hire Lorenzo G
Cristóbal DVerified Expert
Senior Swift Engineer
BrazilUTC −03:008 years of experience

Cristóbal handles concurrency with async/await, actors and GCD, and ships features that run outside the main app, such as Live Activities and App Clips. He builds modular codebases with Server-Driven UI, automates deployment with Fastlane, and keeps coverage high with snapshot testing.

SwiftActorsasync/awaitSwiftUIApp ClipsFastlaneSnapshot testing
Assessment score90%
Interview outputScorecard + recording
Hire Cristóbal D
Patricio MVerified Expert
Senior Swift Engineer (Modernization)
BrazilUTC −03:006 years of experience

Patricio delivered two Objective-C to Swift migrations of core features on a social platform with more than 450 million monthly active users, and broke its monolith into Swift modules. He raised unit test coverage in his team's scope from 60% to 85% with TDD and AI-assisted test generation.

SwiftObjective-CSwift Package ManagerCombineasync/awaitXCTestHealthKit
Assessment score86%
Interview outputScorecard + recording
Hire Patricio M

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Swift resources

How to Hire Swift Developers: The Master Guide

Swift developer or iOS developer, what a Swift 6 migration really takes, and the questions that separate language depth from app experience.

Read the guide now
Swift use cases

What companies build when they hire Swift developers.

Six problems U.S. teams bring to us when the job is Swift itself, not only an iPhone app: a Mac product, shared code, a server, or a codebase that has to move to a new version of the language.

  • Ship a native macOS app

    A Mac app in SwiftUI with AppKit where SwiftUI stops, window and menu behavior Mac users expect, sandboxing, and notarized builds for distribution inside or outside the Mac App Store.

    • SwiftUI
    • AppKit
    • App Sandbox
    • Notarization

  • Extend one Swift codebase to Watch, Vision Pro and iPad

    Shared models and business logic in Swift packages, with a thin platform layer for watchOS complications and workouts, visionOS windows and spaces, and iPad multitasking.

    • watchOS
    • visionOS
    • RealityKit
    • Swift Package Manager

  • Build backend services in Swift

    APIs on Vapor or Hummingbird, running on SwiftNIO in Linux containers, that share Codable models and validation with your Apple apps instead of maintaining two copies.

    • Vapor
    • Hummingbird
    • SwiftNIO
    • Docker

  • Move a shared codebase to Swift 6 language mode

    Apps, internal packages and server targets moved to full data-race checking in dependency order, with public APIs annotated for Sendable so the teams that consume them are not left with the warnings.

    • Swift 6
    • Actors
    • Sendable
    • Swift Testing

  • Retire Objective-C without a rewrite

    Leaf classes first, nullability annotations on everything Swift still calls, behavior locked down with tests, and the bridging header shrinking with every release instead of growing.

    • Objective-C
    • Bridging headers
    • Nullability
    • XCTest

  • Ship a Swift SDK other teams depend on

    A Swift package or XCFramework with a stable public API, semantic versioning, DocC documentation, and Swift wrappers over the C or C++ code that does the heavy lifting.

    • Swift Package Manager
    • XCFramework
    • DocC
    • C++ interop
Smart hiring, better ROI

The real cost to hire Swift developers:
Latin America vs. the U.S.

The U.S. figure is base pay only, before payroll taxes, benefits, equipment and recruiting fees. Ours is all-inclusive, with the same working hours for code review, CI failures and release days.

U.S. software developer$135,980Median base salary (BLS, May 2025). Employer taxes, benefits and hiring costs come on top.
LatAm senior via BEON.tech30% to 44% below U.S. median base
$75.6K – $94.8KAll-inclusive, same vetting bar, same time zone
Cost breakdownU.S. software developerLatAm senior (BEON.tech)
Base salary$135,980 median (BLS, May 2025)$6,300 – $7,900 / month, all-inclusive
Payroll taxes & employer contributionsPaid by employer, on top of salaryIncluded
Benefits & insurancePaid by employer, on top of salaryIncluded
Equipment & onboardingPaid by employerIncluded
Recruiting / sourcing feesInternal recruiting time or agency feeIncluded, no separate fee
Total annual cost$135,980 + employer costs$75,600 – $94,800

Where an engineer lands inside the range depends on seniority and on the scope of the role: an engineer adding features to a macOS app, an engineer who owns a public SDK, and a lead running a Swift 6 migration across apps and server do not price the same. We quote after a 30-minute call.

Hire Swift TalentSee the cost calculator
Swift vetting process

How BEON.tech evaluates the top 1% of Latin American Swift developers.

Four gates, all of them before you spend a minute interviewing. The counts are per 100 engineers who enter the process; 20,775 have so far. Every rate below says which stage it measures.

1
Inbound + outbound
SourcingHalf inbound, half outbound: LinkedIn and referrals, senior Swift profiles with production work on Apple platforms, Swift packages, Objective-C codebases and server-side Swift. The count is who answered and entered the process, not who we contacted.
Not counted as rejectionsEngineers whose Swift is limited to a React Native bridge go to our React Native interview instead, and engineers not open to a move never entered. We don't count them as filtered.
2
In English · Live
Cultural fit & English collaborationIn English: a live stand-up, a breaking change in a shared package explained to the teams that depend on it, and a trade-off explained to a non-engineer, such as why a Swift 6 migration pauses one feature for a sprint. We want a blocker surfaced on day two, not week three. The hardest gate: only 30% clear it.
Cut at this stageEngineers whose English is fine on paper and breaks in real-time work, and anyone who waits to be told what to do.
3
Senior-led · Swift
Technical interviewOne senior-led session in Swift, run on our Apple-platform track. Coding: a small feature that calls an API, decodes the response into Swift models, and keeps the logic testable through dependency injection. Technical Q&A: ARC and retain cycles, threading, async/await and actors, and architecture choices. AI judgment: how they use coding assistants during the exercise and what they check before trusting the output. 47% pass.
Cut at this stageSwift concurrency is where most candidates fall short: they cannot write basic async/await code or explain what an actor protects. Others hand the core logic to an AI assistant and cannot fix a small bug without it. Years of Swift on a résumé do not get anyone past this gate.
4
Your call
Client interviewThree engineers, each with the full scorecard and the interview recording. Most partners finalize after one or two rounds.
What reaches youThree interviews instead of thirty. Everything before this gate happened without you in the room.
5
Net result
You hire 1 of every 3.Ninety-seven of every hundred never reach your calendar. Of the three you do meet, partners hire one on average, and the other two stay in the pool for your next role.
Hire the Top 1%Platform depth beyond iOS (macOS, Vapor, SDK work) comes from each engineer's track record, which we match against your role; the interview verifies the Swift underneath it. Matched on platforms, Swift version and language mode, Objective-C or C++ interop, and team fit.
Swift Tech Output

Marketplaces send résumés. We send the interview output.

Every shortlist arrives with the same internal scorecard our staffing team uses: coding exercise breakdown, technical Q&A summary, Swift and concurrency ratings, evaluator notes, soft-skills results, and a link to the full interview recording.

“To reach our 1%, a remote engineer clears three gates: the code, the conversation, and the identity behind both.”

Julián FuksJulián FuksChief Operating Officer, BEON.tech
Real interview output
Technical Interview ResultMaximiliano R.Swift · Senior Engineer
Approved
Tech StackSwift (Apple-platform track)
Proficiency LevelExpert · L2
Interview RecordingView link →
Overall Technical Score96%Top 1% percentile
  • Coding exercise94%
  • Technical Q&A98%
  • AI codingAssisted
Skills & highlights
  • Swift Concurrency & actorsPRO
  • Threading & synchronizationPRO
  • Memory management (ARC)PRO
  • ArchitecturePRO
    The BEON.tech advantage

    Why U.S. companies choose BEON.tech to hire Swift developers.

    Since 2017, BEON.tech has connected leading U.S. companies with the best tech talent in Latin America. We match each hiring need with the right people: one Swift engineer for a macOS app, or a team that owns your Apple apps, shared packages and Swift services.

    • High-end vetting process

      Swift appears on almost every mobile résumé, including engineers who have only touched it through a cross-platform bridge, so we act as your filter. Only 30% of the engineers who enter our process clear cultural fit and English, and 47% of those who reach the technical interview pass it. You meet the ones who wrote working Swift live and explained ARC, threading and actors.

    • Strong industry experience

      #1 for IT staffing worldwide in Clutch organic rankings since 2022, and the top-ranked B2B company in Argentina. When companies find talent that stays, they don't go anywhere else.

    • Time-zone alignment

      Every BEON.tech developer works in a LatAm time zone with 0 to 4 hours of overlap with U.S. teams. A review on a shared package, a red Linux build of your Vapor service or a notarization failure before a Mac release gets handled during your working hours.

    • Long-term retention

      88% of the engineers we place are still on the team after year one, with an average tenure of 2.9 years. The engineer who knows why your package boundaries, availability checks and concurrency annotations look the way they do is the one you can't replace quickly.

    • Speed without compromising quality

      First Swift profiles in 24–48 hours and a 2-week start, without lowering the bar.

    Timeframe

    Hire a dedicated Swift developer in 2 weeks.

    1. Day 0

      Discovery call

      30 minutes on the platforms you ship (iOS, macOS, watchOS, visionOS, server), Swift version and language mode, how much Objective-C or C++ is left, your package structure, and team fit. No commitment.

    2. 24–48h

      Matched shortlist

      2–3 profiles, each with the full interview scorecard and recording. Not résumés.

    3. Week 1

      Your interviews

      Most partners finalize after 1–2 rounds; the technical screening is already done.

    4. Week 2

      Onboard & retain

      Repository and signing access, every target and package building locally, a walkthrough of CI on macOS (and Linux, if you run Swift on the server), and a first pull request in review. A dedicated TEM supports retention from day one.

    And then they stay88% stay past year one
    Engagement models

    3 ways to engage Swift developers.

    • Staff Augmentation

      Most popular

      Hire dedicated Swift developers who join your team on BEON.tech's payroll; you keep full technical direction, repository access and code review standards. Flexible contracts, no setup fees, and the TEM™ retention program throughout.

      Best forTeams growing in LatAm with one long-term partner that runs recruitment, hiring and retention end to end, with the flexibility to scale up or down.
      All-inclusive monthly rateLearn more

    • Contract-to-Hire

      Built for CTOs curating a long-term team: your Swift engineer works embedded in your team first, and you bring the best onto your internal payroll. Fully managed until then: payroll, compliance, and equipment covered.

      Best forA Swift engineer who works embedded in your team, part of your culture and ways of working, until you are ready to bring them onto your payroll.
      All-inclusive rate + one-time conversion feeLearn more

    • IT Recruitment

      Hire Swift developers directly under your own payroll. We source, run the full vetting loop, and shortlist; you own the employment from day one. 3-month satisfaction guarantee.

      Best forCompanies already set up to employ LatAm talent directly: payroll, compliance and logistics in place, and a culture used to working with remote engineers.
      One-time recruitment feeLearn more
    Swift retention framework

    The stability engine: our Talent Experience Management™ Framework.

    Senior Swift engineers who have shipped beyond the iPhone, on the Mac, in public packages or on servers, are a small group, and every Apple-platform team is trying to hire them. Our framework is how 88% of the engineers we place stay past year one.

    1. From day one

      A dedicated Coach, exclusively yours

      Your Talent Experience Manager™ knows the actual work your engineer does, so retention conversations are about that work, not a generic satisfaction survey.

      In practice
      • They know whether your engineer is shipping a first Mac release, carrying a package five apps depend on, or halfway through a Swift 6 migration.
    2. Ongoing

      Career advancement and recognition means retention

      Experienced engineers stay when they see a future. We map the paths Swift work actually offers and tie each one to work on your roadmap.

      The paths we map
      • Swift engineer into Apple-platform lead
      • iOS-only into multi-platform work on macOS, watchOS and visionOS
      • App engineering into server-side Swift
      • Feature work into SDK, tooling and build ownership
    3. Biweekly

      Proactive monitoring, no resignation surprises

      Biweekly check-ins track the signals that come before a resignation. All of it surfaces before a notice period does.

      Signals we track
      • A Swift 6 migration stalled at warnings with no time on the roadmap.
      • One engineer fielding every integration issue from the teams that use your SDK.
      • An inbound offer at a higher band.
    4. Every 6 months

      The 6-month recalibration

      Every six months we run a formal review on performance, compensation and scope, where a pay gap gets addressed on your terms instead of in a counteroffer.

      Why it matters in Swift
      • Engineers who own concurrency safety, public APIs and Swift on the server are a smaller group than app feature developers. Once your engineer grows into that scope, the market prices them differently.
    About us

    The experts behind our Swift talent screening.

    • Damian Wasserman & Michel Cohen

      Co-Founders

      Since 2017 they have watched Swift grow from Apple's new app language into one that also runs services, SDKs and Linux builds. They built the in-house loop behind our 30% cultural-fit and 47% technical pass rates, including the rule that every engineer is interviewed in the language they would actually write, Swift included.

    • Ana Chirinos

      Recruiting Manager

      A Human Capital Management degree and deep IT experience. Ana runs intake for the Swift pipeline, where the key early call is separating engineers who know Swift as a language (concurrency, generics, interop) from engineers who know one app's screens.

    • Sofía Lamela

      Staffing Lead

      IT expertise combined with psychology. Sofía aligns with partners on complex technical needs: iOS or macOS, app or server, a new package or a ten-year-old Objective-C core. The matches last.

    Support

    Any questions?
    We got you.

    Here you'll find answers to the most common questions about hiring Swift developers with BEON.tech. If you need more details, feel free to reach out!

    • What does a Swift developer do?

      A Swift developer writes software in Swift, Apple's open-source programming language. Most build apps for iPhone, iPad, Mac, Apple Watch or Vision Pro, but Swift also runs backend services on Linux, shared libraries and SDKs, and code that calls into C and C++. The common thread is the language itself: its type system, memory model and concurrency model.

    • What is the difference between a Swift developer and an iOS developer?

      An iOS developer builds iPhone and iPad apps, and almost always writes Swift to do it. A Swift developer role is usually broader: macOS or watchOS apps, a shared Swift package, a Swift 6 migration across several targets, or services in Vapor. If the job is one iPhone or iPad app, hire for iOS on our page for iOS developers; if it spans platforms or the server, hire for Swift.

    • How much does it cost to hire a Swift developer?

      A senior LatAm Swift developer through BEON.tech costs $6,300 to $7,900 per month all-inclusive ($75,600 to $94,800 per year). For reference, the U.S. median base salary for software developers is $135,980 (BLS, May 2025), before employer costs. Where an engineer lands in the range depends on seniority and scope.

    • How long does it take to hire a Swift developer?

      With BEON.tech you receive a vetted shortlist in 24–48 hours, and most engineers start within two weeks of the first call, including your own interview rounds.

    • Can Swift be used for backend development?

      Yes. Vapor and Hummingbird are the main Swift server frameworks, both built on SwiftNIO and deployed on Linux. Apple rewrote its Password Monitoring service from Java to Swift on Vapor and reported close to 40% more throughput, instances using hundreds of megabytes instead of tens of gigabytes, and about 85% fewer lines of code (Swift.org, June 2025). The payoff is largest when the same team also owns the Apple apps and can share models; for a general backend, compare with our backend engineers.

    • Swift vs. Objective-C: should we migrate?

      New code should be Swift. For existing Objective-C, migrate where you are actively changing code and leave stable, well-tested modules alone until you need to touch them. A good migration starts with nullability annotations and tests, converts leaf classes first, and ships continuously instead of waiting for a big-bang rewrite.

    • What does a Swift 6 migration involve?

      Swift 6 language mode turns data-race checks into compiler errors. The work is making shared state safe: marking types Sendable, isolating mutable state in actors or on the main actor, and fixing the captures the compiler flags. Plan it module by module, starting with the packages everything else depends on, and treat shortcuts like @unchecked Sendable as debt to remove, not a fix.

    • Can Swift run outside Apple platforms?

      Yes. Swift is supported on Linux and Windows, Swift 6.3 (March 2026) included the first official release of the Swift SDK for Android, and Embedded Swift and WebAssembly support improved again in Swift 6.4 (September 2026), per Swift.org. In practice, most non-Apple Swift in production today is server code on Linux and shared business logic.

    • Should I hire a Swift developer or a React Native developer?

      Hire Swift when you need native performance, Apple APIs on release day, a Mac or Watch app, or Swift on the server. If you need one codebase for iOS and Android and the app is mostly forms, lists and API calls, React Native engineers may be the better fit.

    • How does BEON.tech vet Swift developers?

      Senior engineers run a live technical interview in Swift: a coding exercise, technical questions on memory management, threading, concurrency and architecture, and a look at how the candidate uses AI tools. We also assess English in conversation at C1 or above, plus team fit. Roughly 30% clear the cultural-fit and English stage, and 47% of those clear the technical interview. You receive the recording and scorecard with every profile.

    Searching for specific roles?
    Find related ones.

    In this guide
    Understand the roleWhat Swift Developers DoTypes of Swift DevelopersSeniority You NeedOne Developer or a Team
    Evaluate and interviewJob DescriptionSkills, Layer by LayerHow to InterviewInterview QuestionsRed Flags
    Hire and onboardWhat It CostsNearshore in LATAMHiring Model ComparisonThe First 90 DaysHiring with BEON.tech
    Skip ahead and talk to us.First Swift profiles in about 24 to 48 hours.Book a discovery call →
    Mega guide

    How to hire Swift developers: a practical guide for U.S. engineering and HR leaders.

    Written by Damian Wasserman

    When Apple rewrote its Password Monitoring service from Java to Swift, it reported close to 40% more throughput, about 50% of the service's Kubernetes capacity released for other work, and close to 85% fewer lines of code (Swift.org, June 2025). That is a server, not an app. Swift is still the language of iPhone apps, but a growing share of Swift jobs is somewhere else: Mac products, shared packages, SDKs, backend services, and codebases that have to move to Swift 6. This guide covers how to choose the right dedicated Swift developer for that kind of work.

    What Swift developers do

    A Swift developer writes production software in Swift, the open-source language Apple introduced in 2014. What separates the role from "iOS developer" is where the code runs and who depends on it. A Swift developer might own a macOS app, a package that your iPhone, iPad and Watch apps all import, an SDK that customers embed in their own apps, a Vapor service on Linux, or the migration of a mixed Objective-C and Swift codebase to Swift 6.

    The work that does not change across those settings is the language: value and reference semantics, protocols and generics, memory management through ARC, and the concurrency model that Swift 6 made part of the compiler. If the job is one consumer iPhone app, hire an iOS developer; the skills overlap, but the day-to-day priorities (App Review, device features, UI polish) are different.

    Types of Swift developers

    ProfileOwnsTypical stackHire when
    Apple multi-platform engineerApps on macOS, watchOS, visionOS or iPad next to iPhoneSwiftUI, AppKit, WatchKit, RealityKit, shared packagesYou ship on more than one Apple platform.
    Library and SDK engineerPackages and frameworks other teams or customers depend onSwift Package Manager, XCFrameworks, DocC, library evolutionYour code is someone else's dependency.
    Modernization engineerObjective-C retirement, Swift 6 migration, modularizationObjective-C, bridging headers, actors, Sendable, SPMThe codebase is older than your team and slowing it down.
    Server-side Swift engineerAPIs and services in SwiftVapor, Hummingbird, SwiftNIO, Docker, PostgreSQLYou want one language across apps and backend.
    Systems and interop engineerSwift over existing C or C++ code, performance-critical pathsC and C++ interop, @c, Embedded SwiftA core library in C or C++ needs a safe Swift surface.

    Most senior Swift developers cover two of these well. Decide which two matter before you write the job description.

    Seniority you need

    • Mid-level developers work well inside an established architecture. They need review on concurrency, public API changes and anything that touches Objective-C interop.
    • Senior developers own a module, package or service end to end, including its tests and its public surface. They can explain why a type should or should not be Sendable, and they can plan a Swift 6 migration without stopping feature work.
    • Lead engineers set the conventions: module boundaries, minimum OS versions, the language mode, versioning rules for shared packages, and CI across macOS and Linux. If this person will also define the system across apps and services, you may be hiring a software architect rather than a senior developer.

    One developer or a team

    One senior Swift developer can own a macOS app, a shared package or a focused migration. Move to a team when several apps depend on the same packages, when a migration and feature work have to run in parallel, or when Swift services are going to production. A common shape is one or two Swift engineers on the Apple apps, one engineer who owns shared packages and server-side Swift, and backend engineers for the rest of your stack.

    Job description essentials

    A useful Swift job description answers what candidates actually filter on:

    • Platforms and targets: iOS, iPadOS, macOS, watchOS, visionOS, Linux server, and the minimum OS version for each.
    • Swift version and language mode: Swift 5 mode, partial strict concurrency, or Swift 6 language mode already on.
    • Legacy code: share of Objective-C, and any C or C++ the Swift code calls.
    • Packaging: Swift packages, XCFrameworks, whether anything ships to external customers, and how versions are released.
    • Server: Vapor or Hummingbird, database, deployment target (containers, Kubernetes, serverless).
    • Testing and CI: XCTest or Swift Testing, CI on macOS and Linux, who owns build times.
    • AI tooling: which assistants the team uses and how generated code is reviewed.
    • Team and hours: team size, who they report to, required overlap with U.S. hours.

    Skip "5+ years of Swift". Five years of the same UIKit screens is a different hire from five years of packages, migrations and services.

    Skills, layer by layer

    The language

    • Value versus reference semantics, protocol-oriented design, and generics that remove duplication instead of adding indirection.
    • some versus any: opaque types for performance and API stability, existentials where heterogeneity is real.
    • Error handling with throws and typed throws, not try? everywhere.

    Concurrency

    • async/await, structured concurrency with task groups, cancellation, actors, @MainActor and Sendable.
    • Swift 6 language mode and what it enforces. Swift 6.2 added an option to run code on the main actor by default and a @concurrent attribute for work that should run in parallel (Swift.org). Swift 6.4 added awaiting async code in defer and a withTaskCancellationShield API (Swift.org, September 2026).
    • Actor reentrancy: state can change across every await, so invariants must be checked again after it.

    Apple platforms beyond iPhone

    • SwiftUI across platforms and AppKit where SwiftUI stops on the Mac; sandboxing, entitlements and notarization for Mac distribution.
    • watchOS constraints (background time, complications, workouts) and visionOS windows, volumes and RealityKit.
    • The yearly SDK cycle: since April 28, 2026, App Store Connect uploads must be built with Xcode 26 or later using the iOS, iPadOS, tvOS, visionOS or watchOS 26 SDK (Apple Developer).

    Interop

    • Objective-C bridging: nullability annotations, NS_SWIFT_NAME, and what changes when a class moves from Objective-C to Swift.
    • C through module maps, and the @c attribute from Swift 6.3 for exposing Swift to C. C++ interop, including Swift 6.4's bridging between C++20 std::span and Swift's Span (Swift.org).

    Packages and server

    • Swift Package Manager (Swift Build is the default build system in Swift 6.4, so packages build the same way on Linux, macOS and Windows), semantic versioning, @available deprecations, and library evolution for binary frameworks.
    • Vapor or Hummingbird on SwiftNIO: never block an event loop, and know when work belongs on a thread pool.

    Quality and AI-assisted work

    • Swift Testing and XCTest, which since Swift 6.4 can be mixed in the same tests during a migration; DocC for public APIs; CI on every platform you ship.
    • Reviewing AI-generated Swift: data races that Swift 5 mode lets through, silenced warnings, deprecated or invented APIs, and missing tests.

    How to interview

    1. 1Screen (30 min)Walk through the most complex Swift code they own. Ask who depends on it, what broke, and how they found out.
    2. 2Live exercise in SwiftA small feature that loads data, decodes it into models, runs work concurrently, and has injected dependencies and one test. Add a shared mutable cache and see whether they reach for an actor.
    3. 3Code review (30 min)A pull request with a non-Sendable type captured in a Task, an @unchecked Sendable added to silence a warning, a blocking call inside a Vapor route, and a public API change with no deprecation. Ask for review comments.
    4. 4Role-specific deep diveObjective-C interop for a migration, versioning for an SDK, AppKit for a Mac app, SwiftNIO for a server.
    5. 5Team conversationHow they announce a breaking change in a shared package, and how they disagree in a review.

    Interview questions

    • What does an actor protect, and what is actor reentrancy?Best answerSerialized access to mutable state; every await inside an actor method lets other calls interleave, so state must be re-checked after suspension points.
    • When is a type Sendable, and when would you use @unchecked Sendable?Best answerValue types with Sendable members, or final classes with immutable state. @unchecked only with documented internal synchronization, such as a Mutex, never to silence the compiler.
    • When do you return some Protocol and when any Protocol?Best answerOpaque types keep the concrete type hidden and fast; existentials when callers need different types in one collection. Knows the cost and the API-evolution impact of each.
    • Five apps depend on your Swift package. How do you ship a breaking change?Best answerSemantic versioning with a major bump, @available deprecations first, a migration note, and library evolution settings if the package ships as a binary framework.
    • An Objective-C class is about to be called from Swift. What do you fix first?Best answerNullability annotations, Swift-friendly names, tests around current behavior, then migration of leaf classes before the core.
    • A Vapor route calls a blocking library and latency spikes. Why?Best answerThe call blocks a SwiftNIO event loop and every request on it. Move to an async API or offload to a thread pool, then measure.
    • How would you share code between an iOS app, a macOS app and a Swift server?Best answerA platform-agnostic package for models and business rules, platform code behind #if os or canImport, and CI that builds the package on Linux.
    • AI-generated Swift compiles in Swift 5 mode and fails in Swift 6. What do you look for?Best answerShared mutable globals, non-Sendable captures in tasks, missing main-actor isolation, and the difference between fixing the race and hiding it with nonisolated(unsafe).

    Red flags

    • They cannot explain ARC, retain cycles or what an actor protects.
    • Every concurrency warning ends in @unchecked Sendable, @preconcurrency or nonisolated(unsafe).
    • They have never changed a public API that other people depend on, for a role that owns shared packages.
    • They cannot read Objective-C, for a role that is a migration.
    • Blocking calls inside server request handlers.
    • They trust AI-generated Swift because it compiles.
    • Their only Swift experience is a single app built from a template.

    What it costs

    The U.S. median base salary for software developers is $135,980 (BLS, May 2025), before payroll taxes, benefits, equipment and recruiting. Senior Swift developers who own SDKs, migrations or server code usually sit above that median.

    A senior LatAm Swift developer through BEON.tech costs $6,300 to $7,900 per month, all-inclusive ($75,600 to $94,800 per year). Use the LatAm developer cost calculator to compare by country and seniority.

    Nearshore in LATAM

    Latin America works in U.S. hours, 0 to 4 hours from Eastern time. For Swift teams that matters most when work crosses boundaries: a package change that breaks another team's build, a Linux CI failure on a Swift service, or a notarization problem the day before a Mac release. Our network includes more than 3,500 Swift engineers, about two thirds of them senior or above. For a broader view of the region, see our guide to hiring Latin American developers.

    Hiring model comparison

    ModelSpeedVetting done for youPayroll & complianceBest for
    In-house U.S. hireSlowestNoYouRoles that must be U.S.-based
    Freelance marketplaceFastPartial, résumé levelContractorA small, well-defined fix or prototype
    Apple app development agencyFast to startAgency's ownAgencyA fixed-scope app you do not plan to own in-house
    Staff augmentation (BEON.tech)24–48h shortlist, 2-week startYes, live interview + recordingBEON.techOngoing Swift work on your team
    Contract-to-hire (BEON.tech)Same as staff augmentationYesBEON.tech, then youA migration or new service you want to trial first
    IT recruitment (BEON.tech)Shortlist first, then your processYesYouLead roles that own packages, language mode and tooling

    The first 90 days

    • Week 1: repository and signing access, every app target, package and service building locally, a CI walkthrough, and a first small pull request merged.
    • Weeks 2 to 4: owns a scoped change in a package, app or service end to end, including tests and release notes.
    • Month 2: proposes one improvement with a plan: build times, test coverage, a migration order for Objective-C or Swift 6, or a versioning policy for shared packages.
    • Month 3: owns an area. If a migration was the reason for the hire, it has milestones and the first modules are done.

    Hiring with BEON.tech

    Tell us the platforms you ship, your Swift version and language mode, how much Objective-C or C++ is left, and whether Swift runs on your servers. Within 24 to 48 hours you get two or three senior Swift developers, each with the recording and scorecard of a live technical interview in Swift. Most engineers start within two weeks, and 88% are still on the team after year one.

    Your next senior Swift developer is already in our network.

    Two weeks from this call to "good morning" on your standup.

    Book a Discovery Call