Caleb Ryker

Full Stack Developer | AI Developer | QA Engineer

Fiverr • Freelance

Apr 2022 - Present • 4 yrs 1 mo

I am a Full Stack Developer, AI Developer, and QA Engineer specializing in building modern digital solutions and ensuring high-quality software performance. I develop AI-powered websites, web applications, SaaS platforms, and mobile apps using technologies such as React JS, Next JS, NodeJS, Python, PHP, MySQL, WordPress, and Webflow. My focus is creating scalable, responsive, and high-performance applications that solve real business problems. Alongside development, I provide professional QA and testing services including website testing, app testing, QA testing, manual testing, usability testing, mobile app testing, Android and iOS testing, SaaS testing, beta testing, and bug reporting. I help clients identify issues, improve user experience, and ensure smooth product performance before launch. I also work with Google Play Console testing, closed testing programs, and structured feedback systems such as 12 testers and 20 testers setups for app validation and release readiness. Key responsibilities & achievements: Built custom AI websites and AI chatbot systems Developed full stack web applications and SaaS platforms Delivered responsive business websites and web apps Performed detailed QA testing and bug reporting for apps and websites Improved user experience through usability and UX testing Supported Android and iOS app testing and Play Store readiness Worked on frontend and backend development for scalable systems Provided detailed QA reports for developers and businesses I combine development and quality assurance to deliver complete digital solutions from building to testing ensuring products are functional, stable, and user-friendly.