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Senior Kotlin Developer – Mobile
Location
Poland
Posted
22 days ago
Salary
zł110 - zł150 / hour
Seniority
Senior
Job Description
Senior Kotlin Developer – Mobile
Spyrosoft
• Develop and maintain cross-platform modules using Kotlin Multiplatform Mobile (KMM) • Design and implement secure authentication and authorization flows (OAuth 2.0, OpenID Connect, MFA, SSO) • Integrate with identity providers and enforce Zero Trust principles (least privilege, continuous verification) • Collaborate with security architects to embed security best practices into mobile client design • Ensure secure storage of credentials and tokens using platform-specific secure storage mechanisms • Monitor and respond to runtime security signals (e.g., device integrity, jailbreak/root detection) • Write clean, maintainable, and testable Kotlin code for both shared and platform-specific modules
Job Requirements
- Strong experience with Kotlin and mobile development (Android or cross-platform)
- Hands-on experience with Kotlin Multiplatform Mobile (KMM)
- Solid understanding of authentication and authorization protocols (OAuth 2.0, OpenID Connect)
- Experience working with identity providers and secure session/token management
- Good understanding of mobile security best practices
- Experience implementing or working with Zero Trust Architecture principles
- Familiarity with secure storage solutions on mobile platforms
- Strong problem-solving skills and attention to detail
- Good command of English (B2+)
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