Ruslan G.

React Native | Kotlin | Swift | Supabase | OpenAI | Gemini | Cursor

Senior Mobile & AI Engineer (React Native ▪ iOS/Android ▪ OpenAI ▪TypeScript ▪ AWS) 👋 I'm Ruslan - a Senior Mobile & AI Enginee & CTO with 8+ years building intelligent, secure mobile apps for iOS and Android. I help startups and enterprises ship AI-powered mobile products, scalable backends, and cloud-native systems using React Native, TypeScript, OpenAI APIs, AWS, and Node.js. I specialize in mobile-first engineering with AI integration, real-time features, and enterprise-grade security - turning product ideas into production-ready iOS/Android apps that users love. My work includes mobile apps used by leading US banks, real-time auction platforms, and sports management systems serving thousands of active users. 🔹 Why work with me ▪ 8+ years of mobile & AI-powered engineering ▪ Mobile-first approach: React Native expert for iOS & Android ▪ AI integration specialist: OpenAI API, ChatGPT, Assistants API, Google Gemini ▪ Proven track record with enterprise & Fortune 500 clients ▪ Team Lead & CTO experience - architecture, leadership, delivery ▪ Expert in secure, real-time, cloud-backed mobile systems ▪ Clean, maintainable code with predictable delivery 🔹 Highlights & Impact ▪ Y Combinator-featured security platform - built passwordless authentication system now used by leading US banks and a major stock investment app ▪ #1 Asia-Pacific auction marketplace - engineered real-time bidding with WebSockets, integrated MOLPay payments (similar to eBay) ▪ Large-scale Sports Management App - connects thousands of athletes & coaches with performance tracking and training workflows ▪ Mobile AI products - built conversational AI features, intelligent assistants, and automation workflows directly into mobile apps ▪ Cross-platform mobile leadership - Team Lead & CTO delivering iOS/Android apps at scale 🔹 What I deliver I build AI-powered mobile apps, secure backends, and intelligent automation systems: ▪ Mobile App Development - React Native (iOS & Android), Swift, Kotlin, cross-platform delivery AI Integration & Automation - OpenAI API (ChatGPT, Assistants), Google Gemini, n8n workflows, intelligent features ▪ Full-Stack Mobile Engineering - React Native frontend + Node.js/Supabase backend ▪ Cloud & Serverless Architecture - AWS Lambda, API Gateway, event-driven mobile backends ▪ Real-Time Mobile Features - WebSockets, live updates, push notifications ▪ Security & Authentication - passwordless auth, biometric login, enterprise-grade security ▪ Backend & APIs - Node.js, Express.js, Supabase, PostgreSQL, REST/GraphQL ▪ Modern Mobile Tooling - TypeScript, Redux, CI/CD, App Store & Google Play deployment 🔹 Toolbox React Native • iOS • Android • Swift • Kotlin • TypeScript • Redux • OpenAI API • ChatGPT • Assistants API • Google Gemini • n8n • Cursor • Node.js • Express.js • Supabase • PostgreSQL • AWS Lambda • Serverless • CI/CD • Docker You get a mobile engineer who ships AI-powered iOS/Android apps with clean architecture, modern tooling, and reliable delivery - not just code fragments. If you need a React Native expert who integrates AI and delivers fast - let's talk."