Vitalii Khaichenko

Senior Mobile & Full‑Stack Developer LinkedIn Headline: Senior Mobile Developer (iOS / Android / Flutter) | Full‑Stack Engineer (Laravel, PHP) | 10+ Years Experience | Apps in the Apple App Store | Mobile Apps, Web Platforms, E‑commerce, Automation Professional Summary Senior software engineer with more than 10 years of experience building high‑quality mobile applications and scalable web platforms. Specialized in iOS, Android and cross‑platform development using Flutter, Kotlin and Swift, as well as backend systems with Laravel and PHP. I have developed multiple production mobile applications published in the Apple App Store and delivered full‑stack solutions including e‑commerce platforms, automation tools, data scraping systems and high‑performance web applications. My focus is on building reliable, scalable and high‑performance products from idea to production. Core Competencies • Mobile Application Development (iOS, Android, Cross‑platform) • Full‑Stack Web Development • E‑commerce Development • High‑performance application architecture • Automation systems and bots • Data scraping / data parsing • Scalable backend systems • Performance optimization Technology Stack Mobile Development: Flutter, Kotlin, Swift, Android SDK, iOS SDK Backend Development: Laravel, PHP, REST APIs Frontend Development: HTML5, CSS3, Flexbox, Bootstrap, JavaScript E‑commerce: OpenCart Tools & Technologies: Git, API integrations, automation scripts Other: Data scraping, performance optimization, bots Professional Experience Freelance Senior Software Developer (10+ years) Developing mobile applications, web platforms, and custom software solutions for startups, entrepreneurs and businesses. Responsible for full development cycle including architecture, development, optimization and deployment. Key responsibilities: - Mobile application development for iOS and Android - Cross‑platform development using Flutter - Backend and API development using Laravel - Development of e‑commerce platforms - Automation tools and custom bots - Performance optimization of web applications Featured Mobile Applications (Apple App Store) • Super App Lock – Screen Time https://apps.apple.com/us/app/super-app-lock-screen-time/id- Application for controlling screen time and restricting access to apps. Helps users manage digital habits and improve productivity. • AI Pawsome Cat & Dog Translator https://apps.apple.com/us/app/ai-pawsome-catdog-translator/id- AI‑powered mobile application that interprets pet sounds and behaviors. Designed for entertainment and interaction between pet owners and their pets. • AuctionCar https://apps.apple.com/us/app/auctioncar/id- Mobile platform for browsing vehicle auctions and car listings. Allows users to explore cars available through auction systems. Services • iOS and Android mobile application development • Cross‑platform mobile development using Flutter • Full‑stack web application development • E‑commerce platforms and online stores • API development and integrations • Automation systems and bots • Data scraping and parsing solutions • Website speed and performance optimization Key Strengths • 10+ years of real‑world development experience • Production mobile apps published in App Store • Ability to build products from idea to release • Strong problem‑solving skills • Experience working with international clients • Fast development and high‑quality code Additional Information Open to remote collaboration, freelance projects and long‑term partnerships. Interested in building innovative mobile applications, SaaS products and scalable web platforms.