Senior Mobile SDK Engineer

About the role

We are looking for a Senior Mobile SDK Engineer to join a fast‑growing gaming loyalty platform. You will help build a high‑quality SDK that integrates with Unity‑based mobile games, enabling players to discover games, connect with friends, and earn rewards.

Key responsibilities

• Design, develop, and maintain a reliable SDK for integration into Unity mobile games.
• Implement native iOS (Swift) and Android (Kotlin) components and ensure seamless Unity/C# integration.
• Optimize SDK performance, handle threading, lifecycle, and debugging issues.
• Collaborate with product and engineering teams to define technical requirements.
• Lead or take ownership of SDK initiatives and mentor junior developers.

Required profile

• 5+ years of professional software development experience.
• Strong hands‑on experience building mobile SDKs used within Unity applications.
• 3+ years of Unity SDK development and 2+ years of native mobile development.
• Excellent communication skills and ability to work independently.

Required skills

• Kotlin (Android native development)
• Swift (iOS native development)
• C# and Unity integration
• Understanding of mobile app lifecycles, performance, threading, and debugging

What we offer

• Stable, professional environment with international projects.
• Legal assistance for independent contractor status and taxes.
• English courses and professional development opportunities.
• Team‑building events and career support.