Jacob K

App Development, Mobile App, Android App, Android App Development, Mobile App Developer, iOS App Development, Flutter App Developer

Fiverr • Freiberufler

Mar 2026 - Present • 4 mos

Responsibilities Designed and developed cross-platform mobile applications using Flutter for Android and iOS. Built custom mobile applications tailored to client requirements across healthcare, education, eCommerce, fintech, and service-based industries. Integrated REST APIs and third-party services to extend app functionality. Implemented Firebase services including Authentication, Firestore, Realtime Database, Cloud Messaging, Analytics, and Storage. Developed secure user authentication systems using Email/Password, Google Sign-In, Apple Sign-In, and OTP verification. Integrated payment gateways including Stripe, PayPal, and in-app purchases. Built scalable backend solutions and connected mobile apps with cloud databases. Configured push notifications for user engagement and real-time updates. Designed and developed custom admin panels for managing users, content, orders, and analytics. Optimized application performance, fixed bugs, and improved app stability across Android and iOS devices. Published and maintained applications on Google Play Store and Apple App Store. Collaborated with clients throughout the project lifecycle, from planning and UI implementation to testing, deployment, and post-launch support. Maintained clean, scalable, and well-documented code following industry best practices. Core Skills Flutter | Dart | Mobile App Development | Android Development | iOS Development | Firebase | REST API Integration | Authentication Systems | Push Notifications | Payment Gateway Integration | Admin Panel Development | Backend Development | Google Maps API | Cloud Firestore | SQLite | State Management (Provider, Riverpod, Bloc) | Google Play Console | Apple App Store Connect | App Deployment | Performance Optimization | Bug Fixing | UI/UX Implementation | Git & GitHub | app development | mobile app | android app | android development | mobile app developer | app creation | ios app development | flutter developer | app developer | ios app | android | ios App

Mobile App development For Timstapp

Udemy • Vollzeit

Oct 2025 - Present • 9 mos

I helped this buyer turn his idea into a fully functional app, and he was extremely happy with the result. He even gave me generous tips and expressed how pleased he was with the outcome. He also promised to refer me to others who need similar projects completed and said he’ll definitely reach out again for future work. kEYWORDS ai app developer, flutter developer, ai chatbot, gpt4 integration, mobile app ui ux, ai mobile app, app development, ai chatbot, ai website, mobile app, flutter developer, website development, ai developer, ios app development, chatgpt, ai app, android app, mobile app developer, ai development, ai saas app, ai, ai saas, app creation FRENCH application mobile IA, développement d’applications, chatbot IA, site web IA, application mobile, développeur Flutter, développement de site web, développeur IA, développement d’application iOS, ChatGPT, application IA, application Android, développeur d’applications mobiles, développement