Senior iOS Developer (f/m/d) at adjoe

✨ The Stack take on this adjoe job

• 🏢 adjoe has 15 jobs here, 15 with visa sponsorship see all
• 🛂 Visa: EU Blue Card. Minimum salary: €50,700 a year guide
• 💡 No salary shown. Ask adjoe if it is above the minimum.

Updated 2026-11-05, from our data and official sources.

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About the role

Responsibilities:
- Design, develop and maintain production-grade native iOS SDKs in Swift optimized for fast initialization and minimal binary overhead.
- Own end-to-end feature delivery: spec implementation, API design, testing, and rollout.
- Identify and handle platform edge cases at scale (memory, lifecycle, concurrency) and optimize performance.
- Build testability into the SDK, author automated tests and integrate them into CI pipelines.
- Collaborate with backend, cross-platform and mobile teams to ensure consistent APIs and integrations (Unity/Flutter/React Native wrappers).
- Keep the SDK up-to-date with iOS framework changes and propose/implement improvements.
- Mentor peers and contribute to architecture and quality discussions.

Requirements:
- 5+ years iOS development experience and a CS degree or equivalent practical experience.
- Proven experience building and maintaining production SDKs used by large user bases.
- Deep knowledge of Swift, SwiftUI, modern concurrency, iOS lifecycles and clean architecture principles.
- Strong skills in performance tuning, memory footprint reduction, and binary size optimization.
- Experience with automated testing, CI systems and observability for mobile code.
- Cross-platform exposure (Kotlin, React Native, Flutter, Unity) and AdTech experience are strong pluses.
- Willingness to relocate to Hamburg supported by company relocation assistance.

Responsibilities

Develop and maintain native iOS SDKs that power rewarded advertising for millions of users. Own feature development and iOS specification implementation end-to-end while ensuring minimal binary overhead.

Requirements

Requires 5+ years of iOS development experience with a focus on production SDKs and a degree in Computer Science or equivalent. Must possess deep knowledge of the iOS platform, including SwiftUI and modern concurrency.

Key skills

• Swift — in 41 other listings on The Stack
• iOS SDK Development — in 1 other listing on The Stack
• SwiftUI — in 8 other listings on The Stack
• Modern Concurrency — not in any other listing on The Stack
• Clean Architecture — in 22 other listings on The Stack
• CI Pipelines — in 2 other listings on The Stack
• Automated Testing — in 77 other listings on The Stack
• Kotlin — in 251 other listings on The Stack
• React Native
• Flutter
• Unity
• AdTech

Relocation terms mentioned in this listing

• relocation assistance

Quoted from the listing's text; confirm the details with adjoe.

On The Stack (as of 2026-11-05)

• adjoe has 14 other listings on The Stack, 14 of them marked as offering visa sponsorship.
• 166 visa-sponsored jobs in Germany on The Stack, posted in the last 60 days.

Frequently asked questions about adjoe

Is this Senior iOS Developer (f/m/d) role still open?

It was posted on 2026-05-29. Listings more than 30 days old may no longer be active, so check adjoe's site before applying.

Does adjoe offer visa sponsorship?

This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on adjoe's site.

Where is this role located?

The listing gives the location as Hamburg, Germany. It is marked remote.

What skills does this role ask for?

The listing names: Swift, iOS SDK Development, SwiftUI, Modern Concurrency, Clean Architecture, CI Pipelines, Automated Testing, Kotlin, React Native, Flutter, Unity, AdTech.