Senior Mobile Developer

Czym będziesz się zajmować?

Project and role:

• Support advertising delivery and display in a high traffic native iOS application for a major Polish e commerce platform.
• Work at the intersection of native mobile development and AdTech, applying IAB standards while balancing monetization, user experience and main thread performance.
• Use JavaScript in WebViews to investigate ad creative event reporting while maintaining the native technology stack.
• Work 100% remotely with flexible organization, long term cooperation in a stable ecosystem and regular integration meetings.

• Integrate video, display and native ad formats in the main application.
• Optimize video ad playback, transitions and tracking events.
• Collaborate with Core Mobile teams on architecture, security and performance.
• Maintain GDPR consent management and adapt privacy solutions to system changes.
• Debug issues across native code, advertising SDKs and web creatives.
• Design communication between the mobile app and advertising systems.
• Support high traffic scale and work with reactive programming, Jetpack Compose, coroutines, A B testing, open source and Agile Scrum.

• Over 5 years of commercial experience developing native iOS applications with Swift.
• In depth understanding of MVVM, MVI and Clean Architecture.
• Practical WebKit and WKWebView experience, including WKScriptMessageHandler and native to web communication.
• Solid JavaScript, HTML and CSS knowledge for web advertising integration and debugging.
• Experience with REST APIs, asynchronous programming and efficient data processing.
• Proficiency in unit and integration testing, plus knowledge of Git, software engineering principles, data structures and algorithms.

• Reactive programming with RxJava, RxKotlin or Combine, plus Jetpack Compose and coroutines.
• Experience with A B testing frameworks, open source or a strong GitHub profile, and Agile Scrum.
• Proactive problem solving and focus on excellent user experience.

• iOS
• Swift
• MVVM
• MVI
• Clean Architecture
• Unit testing
• Integration testing

• WebKit
• WKWebView
• WKScriptMessageHandler
• JavaScript
• HTML/CSS

• Polski
• Angielski

• 20k–24k PLN netto/m (B2B)
• B2B - Elastyczne godziny pracy (100%)
• Praca zdalna: W całości

We provide complete software development teams, who will take complex care of your software. We are experienced in building teams uniquely suited to the specific needs of our clients. One team - a range of skills, diverse personalities, and various approaches.