Senior Mobile SDK Developer (Android)

We’re seeking a Senior Android SDK Developer to lead the development of a reliable, scalable, and user-friendly SDK used by customers worldwide.

Key Responsibilities:

• Design, build, and maintain the Acoustic Connect Android SDK, enabling enterprise-grade customer engagement features for mobile apps.
• Deliver high-quality, performant, and scalable SDK modules that integrate seamlessly with client applications.
• Take ownership of the full SDK lifecycle: from architectural design to public documentation and ongoing developer support.
• Continuously improve SDK codebase with best practices in modularity, testability, and maintainability.
• Refactor or retire legacy code and modules, aligning the SDK with modern Android best practices (Jetpack Compose knowledge is a must) and long-term maintainability.
• Proactively identify performance bottlenecks and lead improvements using profiling tools

• Minimum 5 years of experience in mobile app development.
• Proven ability to develop concise and lightweight SDKs with excellent performance.
• Deep understanding and experience with Kotlin and Java.
• Knowledge of Android app lifecycle, memory management, and performance optimization techniques.
• Knowledge of best practices for API versioning, backwards compatibility, and public API design.
• Keeping up to date with Android ecosystem changes (new APIs, OS behaviors, privacy changes) and applying them in SDK development.

What will set you apart?

• Any experience with iOS SDK development, Flutter, or React Native is a bonus.

Not checking all of the above boxes but still feeling strong about a career in software development? We want to hear from you anyway!

What We Offer:

• Direct impact on our product and three growth paths: Architect, Principal Software Engineer, or Manager.
• Remote or hybrid work from our Gdansk office (up to you!)
• Competitive benefits, including tax-deductible costs, MacBook Pro, medical and life insurance, meal allowance, and a Multisport card.

We believe in an efficient and candidate-focused recruitment process:

• 30-minute screening and language check by our Talent Acquisition Partner.
• Up to 120-minute interview with the hiring manager and senior team members, covering general and technical aspects of the role (including coding).