
Mike S
Pro Mobile App, Web Developer
Skills

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Portfolio
Work experience
UI/UX & Frontend Performance Engineer
Creative Code Lab • Self-employed
Dec 2025 - Feb 2026 • 2 mos
This helped me focused on the intersection of aesthetics and performance. I ensure that websites not only look modern but also perform flawlessly across all device types. Achievements: Revamped the frontend architecture of an international e-learning platform, improving mobile accessibility scores to 95+ on Google Lighthouse. Implemented "Glassmorphism" and modern UI trends to create high-converting landing pages for tech startups. Ensured 100% cross-browser compatibility and responsive design for all projects.
Native Mobile App Development
AppLaunch Studio • Freelance
Jun 2025 - Jan 2026 • 7 mos
Dedicated to building fluid, native-feeling mobile experiences using cross-platform frameworks. I prioritize clean state management and responsive UI to ensure high user retention. Achievements: Developed a FinTech mobile wallet with secure biometric authentication and real-time transaction tracking. Reduced app crash rates to under 0.1% by implementing rigorous error-handling protocols and unit testing. Integrated third-party APIs for map services, payment gateways (Stripe/PayPal), and social logins.
Backend & API Infrastructure Developer
Core Systems Inc. • Part-time
May 2025 - Dec 2025 • 7 mos
Expert in building the "brains" of a website. I specialize in secure server-side logic, complex API integrations, and ensuring data integrity for large-scale applications. Achievements: Developed a custom booking engine for a hospitality group, synchronizing data across multiple third-party travel platforms. Established secure RESTful and GraphQL APIs that handle thousands of concurrent requests with zero downtime. Implemented JWT-based authentication systems to ensure high-level security for user data.