HENADZ ZHYHARAU

Led feature planning and delivered mobile solutions across e-commerce, fintech, and healthcare. Introduced disciplined testing practices (component isolation + targeted integration tests) achieving a crash-free rate >99.8%, integrated analytics and A/B testing, migrated APIs from REST to GraphQL, and designed internal staff apps using Kotlin Multiplatform. Collaborated with product, design, and backend teams to ensure maintainable, high-performance code.

Introduced disciplined testing practices (component isolation + targeted integration tests), resulting in a >99.8% crash-free rate and measurable improvement in app reliability. Led feature planning and collaborated with product and design teams. Integrated analytics and A/B testing to validate new features. Migrated APIs from REST to GraphQL to improve data efficiency and flexibility. Designed and implemented additional internal staff apps using Kotlin Multiplatform. Collaborated with cross-functional teams to deliver reliable mobile solutions with a focus on maintainability and performance.

Delivered projects across banking, payment platforms, healthcare, and more. Participated in full development lifecycle from requirements analysis to deployment; conducted cross-team code reviews; mentored junior developers and supported onboarding.