Swift developer job description template (2026)
A complete Swift developer job description you can copy, focused on language depth, Swift 6 strict concurrency, shared packages and Swift beyond the iPhone.
By the Ryz Labs team · Updated October 2026
A Swift developer job description should say where the Swift runs and how deep the language work goes. "Swift developer" can mean an engineer who owns shared Swift packages used by several Apple apps, someone building macOS tools, a developer running server-side Swift with Vapor or Hummingbird, or the person leading a Swift 6 strict concurrency migration. If the job is mostly shipping an iPhone app, you probably want an iOS developer job description instead. The template below targets a senior Swift developer focused on core libraries, concurrency and shared code across platforms. Copy it, adjust the platforms and cut what does not apply.
Swift developer job description template
Job title
Senior Swift Developer (Core Libraries and Concurrency)
Employment type: full-time or contract. Location: remote, with at least four hours of overlap with US Eastern time.
About the role
We are looking for a senior Swift developer to own the shared Swift code behind [product name]: the networking, data, sync and domain packages used by our [iOS / macOS / visionOS] apps and [our Swift backend services]. You will set standards for API design, concurrency and testing across our Swift codebase, lead our move to Swift 6 language mode and work with app teams who depend on your packages. You will join a team of [number] engineers and report to [title].
Responsibilities
- Design and maintain Swift packages with clear public APIs, semantic versioning and documentation generated with DocC.
- Lead the migration to Swift 6 strict concurrency: enable checks module by module, resolve Sendable and isolation errors and avoid papering over them with unchecked conformances.
- Model shared mutable state with actors, global actors and @MainActor where appropriate, and remove data races found by the compiler and Thread Sanitizer.
- Build structured concurrency flows with async/await, task groups, AsyncSequence and cancellation that actually propagates.
- Write performance-sensitive Swift with attention to copy-on-write, existential versus generic costs, allocations and ARC traffic.
- Build and run server-side Swift services with Vapor or Hummingbird on SwiftNIO, deployed in Linux containers.
- Maintain macOS tooling or apps, including sandboxing, notarization and distribution outside the App Store where needed.
- Write tests with Swift Testing and XCTest, including tests for concurrent code that are deterministic rather than timing-dependent.
- Keep build times healthy: module boundaries, macro usage, type-checker hot spots and package dependency hygiene.
- Review pull requests across app teams and teach Swift idioms, ownership and concurrency patterns.
Requirements
- 5+ years of professional software development, with at least 4 years writing production Swift.
- Deep knowledge of the Swift type system: protocols with associated types, generics, opaque and existential types, result builders and property wrappers.
- Strong practical understanding of Swift concurrency: async/await, actors, actor reentrancy, Sendable, task isolation and how they differ from GCD.
- Hands-on experience enabling strict concurrency checking or Swift 6 language mode in a real codebase.
- Experience designing and versioning Swift packages consumed by other teams or apps.
- Understanding of memory management under ARC, value semantics and how to find retain cycles and excess copies.
- Experience with Swift on at least one platform beyond iPhone: macOS, server-side Swift on Linux, or cross-platform packages.
- Testing discipline with Swift Testing or XCTest and a CI system that builds for multiple platforms.
- Clear written English for design docs, API documentation and pull request descriptions.
Nice to have
- Writing Swift macros with SwiftSyntax.
- Contributions to Swift Evolution discussions, the Swift compiler or popular open source packages.
- Swift and C or C++ interoperability, including the newer C++ interop mode.
- Experience with noncopyable types, typed throws or other recent language features in production code.
- Embedded Swift, Swift on Windows or Swift for WebAssembly.
- Observability for Swift services with swift-log, swift-metrics and distributed tracing.
Tech stack
Swift 6, Swift Package Manager, Swift Testing, XCTest, DocC, SwiftSyntax, Vapor or Hummingbird, SwiftNIO, Postgres, Docker on Linux, Xcode Cloud or GitHub Actions with macOS and Linux runners. Replace this list with your real stack and say which platforms your Swift code targets.
What success looks like in 6 months
- At least one core package compiles cleanly in Swift 6 language mode, with data races fixed rather than suppressed.
- App teams use your packages through stable, documented APIs, and breaking changes follow a clear versioning policy.
- You have improved one measurable pain point, such as clean build time, flaky concurrency tests or a hot path's allocations.
- You have written a design doc on a language-level decision, such as an actor model for shared state or a macro adoption plan.
How to apply and interview process
Send your resume or LinkedIn profile and a short note about a Swift library, service or migration you led. Our process has four steps: a 30-minute intro call, a technical conversation about Swift code you designed, a practical exercise or pairing session on a realistic concurrency or API design problem, and a final conversation with the team you would join. We aim to give feedback within a few days of each step.
Junior vs mid vs senior Swift developer
Swift seniority is mostly about language depth: knowing why the compiler rejects code, not just how to make the error go away.
| Level | Scope | Typical experience | Key skills |
|---|
| Junior | Well-scoped tasks inside existing packages or apps, with close review | 0-2 years | Optionals, structs versus classes, protocols, basic async/await, reading compiler errors |
| Mid-level | Features and modules end to end, including tests and package boundaries | 2-5 years | Generics, actors, Sendable basics, value semantics, Swift Testing, SPM |
| Senior | Shared libraries, concurrency architecture, migrations and mentoring | 5+ years | Swift 6 isolation model, API design, performance tuning, macros, Swift beyond iOS |
Tips for writing a Swift developer job description that attracts senior talent
- Say where your Swift runs. iOS apps, macOS, Linux servers or all three. A senior Swift developer who loves server-side work will skip a post that reads like a pure iPhone role.
- Be specific about concurrency status. "We are on Swift 5 mode with minimal checking and want to reach Swift 6" is a strong pitch for engineers who enjoy that migration.
- Do not use "Swift" as a synonym for "iOS". If the job is screens and App Store releases, title it iOS developer. Mislabeling attracts the wrong candidates on both sides.
- Mention who consumes the code. Packages used by four app teams carry different expectations around API stability than code in one app.
- Name the hard problem. Offline sync, a real-time audio pipeline or a shared rendering engine tells a senior candidate far more than "scalable architecture".
- Drop Objective-C as a hard requirement unless there is a large Objective-C codebase to maintain. If there is, say so plainly.
- Invite links to code. Open source packages and Swift Forums posts are strong signals for this role. Saying you value them draws in people who have them.
Skip the job post: hire a vetted senior Swift developer
Writing a good job description is the first step of a hiring cycle that can run for months. If you need senior Swift capacity sooner, Ryz Labs can match you with senior Swift developers from Latin America who join your team, your repos and your standups and work within an hour of US time zones. Only the top 1% of the engineers we interview make it through our vetting, which covers the Swift type system, concurrency and real-world code design.
Our staff augmentation model lets you add one Swift developer or several, working on your team, without rewriting your process. Ryz engineers work on your team, reporting to your leads. Talk to us to scope your team. If you are still running your own hiring loop, our Swift interview questions cover the topics we test for and what strong answers sound like.
FAQ
What should a Swift developer job description include?
A job title with seniority, the platforms your Swift targets, the codebase's Swift version and concurrency status, specific responsibilities, realistic requirements, your real tech stack, what success looks like after a few months and the interview steps. Be explicit about whether the role includes UI work.
Should a Swift developer job require Swift 6 experience?
Require solid Swift concurrency knowledge: async/await, actors and Sendable. Direct experience moving a codebase to Swift 6 language mode is valuable but still not universal, so list it as a strong plus unless leading that migration is the main job.
Can I hire a Swift developer for backend work?
Yes. Server-side Swift with Vapor or Hummingbird runs well on Linux, and teams use it to share models and logic with their Apple apps. The pool is narrower than for Go or Kotlin backends, so say clearly that the role is server-side and which framework you use.
Questions we didn't answer? Email info@ryzlabs.com.