Mobile Development Proficiency:

1. Android & iOS Development: Skilled in building native apps using Kotlin for Android and Swift/Objective-C for iOS.
2. Cross-Platform Development: Knowledge of tools like React Native, Flutter, or Xamarin to build apps for both platforms efficiently.
3. Familiar with APIs and third-party integrations, including payment systems and real-time data.

E-Commerce Expertise:

1. Payment Systems: Proven experience integrating payment solutions such as Stripe, PayPal, and Braintree within mobile apps.
2. Shopping Cart & Checkout: Deep knowledge of e-commerce features like cart management, checkout flows, product filtering, and wishlists.
3. User Profiles & Authentication: Expertise in creating secure, user-friendly login systems with options for social logins and biometric authentication (fingerprint, face recognition).

Security & Compliance:

1. Strong knowledge of PCI-DSS requirements, GDPR, and best practices for securing payments and user data.
2. Understanding of encryption, SSL/TLS protocols, and other techniques to safeguard sensitive data.

Performance & Optimization:

1. Experience optimizing mobile apps for speed and scalability, ensuring smooth performance on all devices.
2. Expertise in caching, lazy loading, and minimizing app load times to deliver a fast, engaging shopping experience.

UX/UI & Design:

1. Ability to work with Material Design (Android) and Apple's Human Interface Guidelines (iOS) to create intuitive, mobile-first interfaces.
2. Experience building responsive designs that adapt seamlessly across devices and screen sizes.

Collaboration & Problem-Solving:

1. Strong teamwork skills to collaborate with designers, developers, and business teams to deliver the best shopping experience.
2. Analytical mindset to troubleshoot, debug, and improve app functionality based on user feedback and performance metrics.