Ruslan G.

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