Maksym R.

🚀 Need a production-ready AI mobile app or scalable AI SaaS platform built fast—without the usual tech debt circus? 🤡 I'm a Mobile App Developer, Full Stack Developer, and AI Engineer who turns messy "what if" ideas into lightning-fast, high-converting products. Whether you need a sleek cross-platform React Native app, a high-performance web dashboard, or brainy Generative AI integrations (think custom RAG systems, sharp LLM workflows, and chatbots that actually answer the question instead of making things up 😅), I’ve got you covered. I help fast-moving startups and enterprise teams ship clean code, scale smart, and outpace the competition—all while keeping the development process smooth and headache-free. ⚡ 📩 Click "Invite to Job" for a quick audit of your project! With over 7 years of commercial experience, I am a Certified Mobile Application Developer and Full-Stack Engineer with deep backend skills (Python, Django, Node.js, REST APIs). My core strength is building scalable multi-platform architectures (Web + Mobile) and integrating intelligent AI SaaS development features — custom AI chatbots, automated quoting tools, smart user workflows, and EU AI Act compliance. Where I Bring the Highest Value: AI Development & Automation: Building AI-driven SaaS platforms, implementing smart RAG/LLM chatbots (OpenAI / Claude API), and automating complex business logic across web and mobile — a core part of my work as an AI mobile app developer. Mobile Application Engineering: Developing high-performance, cross-platform and native mobile apps using Expo, React Native, and iOS/Android native tools. As a mobile application developer, I focus on smooth UI/UX, offline-first sync, push notifications, and App Store / Google Play publishing. Advanced Frontend Engineering: Creating responsive UIs with Vue.js (2/3), Nuxt.js, React.js, and Next.js. Expert in SSR optimization, state management (Pinia/Redux), and TypeScript. Scalable Backend & Infrastructure: Designing robust backend systems with Python/Django/Node.js, managing complex databases (PostgreSQL, MongoDB, MySQL, Supabase), and architecting APIs (GraphQL/REST) for mobile and web apps. Selected Project Highlights: 🔹 AI-Driven SaaS & Mobile Marketplace: Engineered a multi-provider web and mobile platform from scratch with automated AI quoting tools and custom chatbot interfaces — a full ai saas development build from architecture to launch. 🔹 High-Performance Cross-Platform Mobile Apps: Built feature-rich mobile apps with offline support, real-time sync, secure payment gateway integrations, and biometric authentication. 🔹 Enterprise High-Load Platform Migration: Migrated legacy systems to modern static/SSR and mobile-first architectures, improving overall performance and load speeds by ~40%. Why Work With Me: ☑️ Top Rated Plus & 100% Job Success: Proven track record of high-quality delivery, clean code structure, and clear communication. ☑️ Unified Architecture That Scales: As a mobile app developer based in Ukraine, I construct maintainable Web & Mobile architectures that share core business logic, growing with your business and cutting future development costs. ☑️ Modern Workflows: I leverage mobile-first design principles and AI-assisted development to deliver high-quality, scalable apps significantly faster. Let's elevate your digital product with modern UI, seamless mobile experience, and smart AI capabilities. Send an invite to discuss your technical stack and project requirements!