Tech Sensei

Expert Full-Stack Mobile App Developer

Fiverr • Freiberufler

Mar 2020 - Present • 6 yrs 2 mos

250+ Successfully Completed Orders. Specialized in turning "app ideas" into high-ranking, revenue-generating mobile products. I provide a seamless, end-to-end service that covers everything from initial logic and UI design to the final App Store/Play Store approval. Key Work & Responsibilities End-to-End Delivery: Managed the full development lifecycle for 290+ diverse projects, maintaining a high satisfaction rate by delivering clean, bug-free, and ready-to-launch applications. Cross-Platform Mastery: Built high-performance apps using Flutter and React Native, providing clients with a single codebase that works perfectly on both iOS and Android to save them time and budget. Backend & Database Expert: Integrated robust backends using Firebase and Node.js, ensuring real-time data syncing, secure user authentication, and scalable storage for growing businesses. Premium UI/UX Design: Translated client visions into modern, intuitive interfaces using Figma, focusing on user retention and high conversion rates for service-based and e-commerce apps. Complex Feature Integration: Specialized in "hard-to-build" features including Stripe/PayPal payments, Google Maps GPS tracking, Twilio SMS, and social media logins. App Store Consultant: Navigated the strict submission guidelines for Apple and Google, ensuring every project passed the review process and achieved optimal App Store Optimization (ASO). Performance Optimization: Revived "slow" or "buggy" apps by refactoring code and optimizing API calls, resulting in 30% faster load times and better user reviews for my clients.