Roman M.

👨‍💻 About Me I'm a seasoned Full-Stack Software Engineer with a proven track record of delivering production-ready applications that drive business growth. Over the past 6+ years, I've architected and deployed 100+ web and mobile solutions for startups and established businesses, specializing in high-performance systems that handle millions of records and thousands of concurrent users. My approach combines technical excellence with business acumen—I don't just write code, I build solutions that solve real problems, scale efficiently, and deliver measurable ROI. 🚀 Core Expertise Full-Stack Development Frontend: React.js, Next.js, React Native, TypeScript, Redux, TailwindCSS Backend: Node.js, Express.js, RESTful APIs, GraphQL Databases: PostgreSQL, MySQL, MongoDB, Apache Solr, Prisma ORM Mobile: React Native (iOS & Android), Expo, App Store & Google Play deployment Cloud & DevOps Infrastructure: AWS (EC2, S3, RDS, Lambda), Vercel, Render, Digital Ocean Performance: Database optimization, query tuning, indexing strategies for high-volume data Scaling: Built systems serving 2,000+ concurrent users with sub-second response times AI & Automation Integrations: OpenAI API, custom AI workflows, intelligent automation Tools: Zapier, n8n, custom API integrations Solutions: AI-powered features, automated content generation, smart notifications 💼 What I Deliver ✅ Enterprise-Grade Applications: Scalable architectures handling millions of records ✅ Mobile Applications: Published apps on both iOS and Android app stores ✅ API Development: Secure, documented, and performant backend systems ✅ Database Optimization: Query optimization for systems with 100M+ records ✅ Authentication Systems: OAuth, Social logins (Google, Apple), secure user management ✅ Real-Time Features: Push notifications, WebSockets, live updates ✅ Payment Integration: Stripe, PayPal, custom payment workflows ✅ Complete DevOps: CI/CD pipelines, deployment automation, monitoring 🤝 Working With Me What You Can Expect: 📱 Daily Progress Updates: Clear communication and transparency 🎯 Business-First Approach: Solutions aligned with your goals ⚡ Fast Turnaround: MVP delivery in weeks, not months 📚 Clean Code: Well-documented, maintainable, and scalable 🔧 Post-Launch Support: I'm here even after deployment 💡 Proactive Solutions: I identify potential issues before they become problems 💬 Let's Build Something Great Whether you need: A high-performance web application from scratch Mobile app for iOS and Android Backend API with complex business logic Database optimization for existing systems AI integration and automation workflows Bug fixes and performance improvements I'm ready to turn your vision into reality. Let's discuss your project. What's your biggest technical challenge right now?