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Expert React Native & Expo mobile app developer with over 8 years of hands-on experience building high-performance, scalable, and user-friendly cross-platform applications for both iOS and Android. I specialize in turning ideas into successful published apps — from MVP development to App Store & Play Store deployment, user acquisition, and post-launch growth using mobile measurement and marketing tools. 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 Core Stack: — React Native (Advanced / Expert level) — Expo (Bare Workflow, Custom Dev Client, EAS Build & Submit) — TypeScript, JavaScript (ES6+) — Redux / Redux Toolkit / Zustand / MobX (State Management) — React Navigation, React Query (TanStack Query), Axios Key Tools & Integrations: — Payments & Subscriptions: Stripe, RevenueCat, Superwall (paywall optimization) — Analytics & Marketing: Appsflyer (MMP), Firebase Analytics, Mixpanel, Amplitude — Backend: Firebase, Supabase, Node.js, AWS Amplify — UI/UX: NativeBase, Tamagui, Styled Components, Reanimated 2/3, Gesture Handler, Lottie — Performance Optimization: Hermes Engine, Flipper, React Native Debugger, Code Splitting, Memoization, Image Optimization, App Size Reduction — Testing: Jest, Detox, React Native Testing Library — CI/CD & Deployment: EAS (Expo Application Services), Fastlane, GitHub Actions Mobile Platform Experience: — Deep knowledge of iOS (Swift bridging when needed) and Android (Kotlin/Java modules when required) — App Store and Google Play publishing, ASO (App Store Optimization), provisioning profiles, code signing, and release management 𝐖𝐡𝐚𝐭 𝐈 𝐃𝐞𝐥𝐢𝐯𝐞𝐫 I don’t just code I help you build market-ready mobile products. My typical project flow includes: — Rapid MVP development (usually 4–8 weeks depending on complexity) — Pixel-perfect, smooth, and native-like UI/UX with excellent performance — Subscription-based apps with optimized paywalls (strong experience with Superwall + Stripe) — Deep integration with Appsflyer for attribution, fraud prevention, and marketing analytics — App performance optimization (60fps animations, fast loading, low battery consumption) — Secure, scalable, and maintainable codebase following best practices — App Store / Play Store submission and rejection handling 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞 — Fast delivery without compromising code quality — Strong focus on performance & user experience — apps that feel truly native — Clean, well-documented, and scalable code (easy for other developers to continue) — Proactive problem-solver who suggests better technical and product solutions — Excellent English communication and regular updates — Long-term mindset — I treat your app like my own Whether you need a new app from scratch, a redesign, performance optimization, subscription system implementation, or post-launch marketing integration (especially with Appsflyer), I can help you achieve your goals efficiently. I’ve successfully delivered more than 15 mobile applications (most built with React Native + Expo) across various industries including fintech, health & fitness, social, e-commerce, and productivity. 𝐑𝐞𝐚𝐝𝐲 𝐭𝐨 𝐛𝐮𝐢𝐥𝐝 𝐬𝐨𝐦𝐞𝐭𝐡𝐢𝐧𝐠 𝐠𝐫𝐞𝐚𝐭 𝐭𝐨𝐠𝐞𝐭𝐡𝐞𝐫? If you're looking for a reliable, skilled, and results-oriented React Native Expo expert who understands both development and the business side of mobile apps (subscriptions, user acquisition, analytics), feel free to message me. Let’s discuss your project and see how we can work together to bring your idea to life successfully.

I'm an AI Product Engineer with a focus on helping startups and businesses leverage AI and adapt to the modern software industry, which is now more accessible than ever. That includes full-stack development, AI automation, AI integration, prototyping, custom development, and, of course, taking over what you've already built and turning it into a production-grade solution. 𝐁𝐫𝐢𝐧𝐠 𝐢𝐧 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐭𝐨𝐭𝐲𝐩𝐞 𝐛𝐮𝐢𝐥𝐭 𝐰𝐢𝐭𝐡 𝐀𝐈 𝐚𝐧𝐝 𝐈'𝐥𝐥 𝐭𝐮𝐫𝐧 𝐢𝐭 𝐢𝐧𝐭𝐨 𝐚 𝐩𝐫𝐨𝐟𝐢𝐭𝐚𝐛𝐥𝐞 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧! 𝐈𝐟 𝐲𝐨𝐮'𝐫𝐞 𝐧𝐨𝐭 𝐬𝐮𝐫𝐞 𝐚𝐛𝐨𝐮𝐭 𝐲𝐨𝐮𝐫 𝐢𝐝𝐞𝐚, 𝐣𝐮𝐬𝐭 𝐬𝐞𝐧𝐝 𝐦𝐞 𝐲𝐨𝐮𝐫 𝐛𝐚𝐬𝐢𝐜 𝐬𝐩𝐞𝐜𝐬 𝐨𝐫 𝐑𝐅𝐏, 𝐚𝐧𝐝 𝐈'𝐥𝐥 𝐭𝐮𝐫𝐧 𝐢𝐭 𝐢𝐧𝐭𝐨 𝐚𝐧 𝐀𝐈 𝐩𝐫𝐨𝐭𝐨𝐭𝐲𝐩𝐞 𝐰𝐢𝐭𝐡𝐢𝐧 𝟑𝟎 𝐦𝐢𝐧𝐮𝐭𝐞𝐬 𝐚𝐭 𝐧𝐨 𝐜𝐡𝐚𝐫𝐠𝐞. 𝐅𝐨𝐫 𝐦𝐞, 𝐢𝐭'𝐬 𝐣𝐮𝐬𝐭 𝟑𝟎 𝐦𝐢𝐧𝐮𝐭𝐞𝐬 𝐨𝐟 𝐰𝐨𝐫𝐤. 𝐅𝐨𝐫 𝐲𝐨𝐮, 𝐢𝐭'𝐬 𝐚 𝐠𝐫𝐞𝐚𝐭 𝐰𝐚𝐲 𝐭𝐨 𝐯𝐚𝐥𝐢𝐝𝐚𝐭𝐞 𝐲𝐨𝐮𝐫 𝐢𝐝𝐞𝐚 𝐛𝐞𝐟𝐨𝐫𝐞 𝐢𝐧𝐯𝐞𝐬𝐭𝐢𝐧𝐠 𝐟𝐮𝐫𝐭𝐡𝐞𝐫. 🔐 𝗞𝗲𝘆 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀: 1. AI Automation: streamlining workflows and business processes with AI 2. AI Prototyping: building fast, working proof-of-concepts to validate ideas 3. AI Hardening: taking over existing solutions and bringing them into production 4. Full-Stack Development: end-to-end product development, from frontend to backend 🌠 My background is in custom software development, and I spent a while working as a hands-on engineer. I was lucky enough to spend my entire career working with fast-growing, large-scale, and enterprise clients, representing an outsourcing vendor. 🌌 Apart from development activities, I was engaged in many others: interviewing engineers, participating in pre-sales, training programs, leading and driving development processes, and much more. I was always a company guy and was interested in and open to everything. 👴🏻 That’s where I matured as an engineer. I learned a lot along the way, saw how painful the software development process could be, and understood the pros and cons of different organizations, including where Fortune 100 companies struggle. 📺 I’m a professional engineer focused on delivering business outcomes for you — not a part-time freelancer juggling Upwork with a full-time job or doing it for extra income. I'm working with all types of clients and budgets. ✅ 99% Job Success Score; 100 + projects delivered — from idea to production-ready software 🛡 Expert-Vetted — interviewed and approved by the Upwork team 🚀 Fastest-Growing Upwork Profile Globally — $4M+ earned across multiple profiles since 2022 🌍 Most Recognized & Viewed Upwork Profile Worldwide 💰 Scaled 5 Upwork Profiles to $300K+ revenue each with strong inbound leads 🏢 Delivered Projects for Fortune 100 & Inc. 5000 Companies and UAE government 🧠 Led Pre-Sales, Estimations, Code Reviews & Tech Interviews for top-tier clients 💻 Even if we don’t end up working together, I’ll help you identify risks and guide you on how to make the product happen — because in the end, it’s all about mindset, not just coding skills. 💡 Answering a question how am I different in this competitive AI industry — the answer is simple: mindset. You can learn endless frameworks, libraries, languages — alright, cool, but mindset and deep understanding of this world outside and inside the industry is what really makes a difference. 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬: AI Automation, AI Agents, Agentic AI, LLM Integration, OpenAI API, Claude API, Gemini API, RAG, Vector Database, AI Chatbot Development, AI Assistants, Workflow Automation, Business Process Automation, MCP (Model Context Protocol), Multi-Agent Systems, Prompt Engineering, Full Stack Development, Full Stack Developer, Web Application, SaaS Platform, MVP Development, React, Next.js, Node.js, TypeScript, REST API, API Integration, PostgreSQL, MongoDB, Authentication, User Management, Admin Dashboard, Backend Services, Payment Integration, Stripe Integration, Subscription Management, Role-Based Access, Scalable Applications, Production-ready, Performance Optimization

Hello and welcome! 👋 Thank you for visiting my profile. Are you looking to boost your online presence and maximize your advertising ROI? You’ve come to the right place! I’m Bohdan, a certified Google Ads and Analytics expert with over 10 years of experience helping businesses like yours succeed. Whether you're a small or medium-sized business, I’m here to craft tailored strategies that deliver real results. Here’s what I bring to the table: 🔹 **Expertise Across Platforms:** - Google Ads (Search, Display, Shopping, YouTube, Remarketing, Performance Max) - Bing Ads - Facebook & Instagram Ads - Google Analytics & Google Tag Manager (including Server-Side setup) 🔹 **Comprehensive Services:** - Full-cycle campaign management: creation, optimization, and maintenance - Data feed integration for platforms like Shopify, WooCommerce, Magento, and more - Merchant Center troubleshooting and error resolution - Advanced keyword research and ad content creation tailored to your audience - Precise tracking setup for conversions and dynamic remarketing 🔹 **Proven Process for Google Ads:** - Developing impactful PPC strategies - Setting up and optimizing ad groups, campaigns, and budgets - A/B testing to identify what works best - Competitor analysis for a competitive edge - Clear, actionable performance reports delivered monthly 🔹 **Facebook & Instagram Ads Expertise:** - Pixel setup and audience targeting (custom and lookalike) - Campaign optimization to maximize budget efficiency - Monthly reports with actionable insights 🔹 **Hard Skills:** - Strategic marketing and campaign design - Data analysis and process improvement - Sales funnel optimization - Landing page and conversion rate recommendations to boost ROI 🔹 **Soft Skills:** - Creative and analytical thinking - Excellent communication and leadership - Adaptability and a growth mindset - Decision-making under pressure 🔹 **Technical Tools I Excel In:** - Google Looker Studio for custom reports - Google Tag Manager Server Side + FB CAPI - Merchant Center and Manufacturer Center integration 🔹 **My Mission:** To maximize your ROI by driving more clicks, lowering your Cost Per Acquisition (CPA), and helping your business thrive. I’m committed to delivering measurable results and continuously improving to stay ahead of industry trends. I’ve had the privilege of working with clients worldwide and take pride in offering both one-time projects and long-term collaborations. Let’s work together to turn your advertising campaigns into a growth engine for your business. Ready to take your marketing to the next level? Let’s discuss your project today! Thank you for your time, and I look forward to helping your business succeed. Bohdan

🔥🔥🔥𝐅𝐫𝐞𝐞 𝐛𝐫𝐢𝐞𝐟 + 𝐚𝐮𝐝𝐢𝐭. 𝐈𝐟 𝐈 𝐭𝐡𝐢𝐧𝐤 𝐲𝐨𝐮𝐫 𝐢𝐝𝐞𝐚 𝐰𝐨𝐧'𝐭 𝐰𝐨𝐫𝐤, 𝐈'𝐥𝐥 𝐭𝐞𝐥𝐥 𝐲𝐨𝐮 𝐛𝐞𝐟𝐨𝐫𝐞 𝐲𝐨𝐮 𝐩𝐚𝐲 𝐦𝐞 - 𝐫𝐞𝐯𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐚𝐫𝐲 𝐜𝐨𝐧𝐜𝐞𝐩𝐭, 𝐈 𝐤𝐧𝐨𝐰🔥🔥🔥 Facts about me: 🏅527 products launched to production 🏆Built a React Native app that hit $118k MRR within 6 months of launch 🚀Top 1% React Native Developer on Upwork (Expert-Vetted) 🎯Shipped direct competitors to Nike Training Club, Find My (Apple) and Flo 💲$12.4M+ generated in client revenue ⭐ Systems supporting 100K+ MAU with 99.9% uptime 📈 30,000+ engineering hours logged across mobile + web 💳 Payment systems (Stripe, billing, marketplaces) processing $4.7M+ in transactions ✅Choose “𝐈𝐍𝐕𝐈𝐓𝐄” and drop me a secret 𝐏𝐑𝐎𝐌𝐎 “𝐔𝐏𝐖𝐎𝐑𝐊” to receive a𝐅𝐑𝐄𝐄 𝐂𝐎𝐍𝐒𝐔𝐋𝐓𝐀𝐓𝐈𝐎𝐍! My Process 💪 Step 1 — Free brief + audit. Send your idea, prototype, Figma files, or existing codebase. As a React Native Developer and Full Stack Developer, I review architecture, scope, risk, and feasibility across mobile and web — no charge, no obligation. Most audits turn around within 24–48 hours. Step 2 — AI-powered prototype. Using Claude Code, Cursor, and OpenAI/Gemini integrations, I build a working, testable React Native or React Next.js prototype in 3–7 days, not months — so you validate real demand before committing to full development. This is the same AI-driven approach that's cut manual workflows by 30–50% and shaved 30–40% off time-to-market on past projects. Step 3 — Build. Full-stack build across React Native Mobile, React Native Expo, React Native Firebase, and web (React, Next.js, Node.js, Supabase/PostgreSQL, MongoDB), with weekly demos so you always know exactly what's shipped and what's next. Sprints run in 1–2 week cycles with clear, measurable milestones — the structure behind 100+ delivered projects and 60+ full production launches. Step 4 — Launch + scale. Deployment (AWS, Google Cloud, or Azure), CI/CD, monitoring, and post-launch optimization — the same DevOps React Native process that's taken apps from 0 to 100K+ MAU, 99.9% uptime, and 5M+ requests/month, while cutting infra overhead by 35% and backend costs by 60%. As a full-stack React Native Developer with 20,000+ hours of hands-on experience across mobile and web platforms, I specialize in React Native, Flutter, React.js, React Native Mobile, React Native Expo, React Native Firebase, React Native WebRTC to build mobile apps. This React Native Developer / React Native Engineer has deep expertise in front-end development using Vue.js, Angular, Next.js, and Laravel to deliver responsive. Over 10 years, this React Native Developer has partnered with 30+ teams across the world - shipping 100+ projects with measurable results. As a React Native Developer operating at the intersection of mobile and full-stack development, I bring 20,000+ hrs of engineering expertise in React Native mobile architecture, Expo, React Native Firebase, and React Native WebRTC. This React Native Developer has delivered mobile app development solutions across fitness, fintech, and neo-banking verticals, working alongside flutter developers, android engineers, and Kotlin specialists to ensure cross-platform quality on every build. In addition to mobile expertise, this React Native Developer extends deep capability into backend development — MERN, Node.js, Laravel, Python with Django, and Ruby on Rails — enabling end-to-end delivery across 100+ projects without switching teams. As both a react developer and full stack developer, this React Native Developer has led architecture decisions for scalable REST APIs, Python REST API integrations, and database systems (MySQL, MongoDB) for clients across 30+ global teams. This React Native Developer has also designed and optimized 100+ WordPress and Shopify websites for SEO and conversion, working as both a Shopify and WordPress front-end developer. As a React Native Developer who understands the full product lifecycle, I integrate Auth0, Stripe payment systems, and blockchain modules while leveraging Webflow and Elementor for custom web experiences — delivering cohesive digital products from mobile app to web. With 30,000+ hours logged as a Senior React Native Full Stack developer, I specialize in React Native Expo (expo), React Native Firebase, React Native WebRTC, and React Native Engineer workflows across iOS and Android. This React Native Developer has shipped 100+ mobile app development react native apps spanning flutter mobile app development, ios mobile app development, and android — bringing a flutter developer and kotlin perspective to every cross-platform architecture decision. As a React Native Developer w full-stack depth, I excel in Node.js, Express.js, and PHP (including Laravel), alongside RESTful API and payment system integration. Across 100+ delivered projects, this React Native App developer has built cross-platform React Native mobile apps using Expo to streamline deployment.

Need a custom LMS, a high-performance mobile app, or a rock-solid SCORM/xAPI integration? As a full stack developer and web developer specializing in EdTech, I bridge the gap between complex eLearning backends and seamless cross-platform app development. With 9+ years of hands-on experience, I focus exclusively on educational technology and LMS platforms. I don’t just build software; I deliver compliant, scalable ecosystems that combine powerful web architecture with intuitive mobile app experiences for iOS and Android. Through my partnership with Greenice (Top Rated Plus agency), I offer unique scalability. I can handle solo elite development or bring in a full-cycle engineering team (UI/UX, QA, DevOps) depending on your project size. ⚡ What I Can Build & Fix For You: • Mobile App Development: Cross-platform iOS & Android deployment using react native or Flutter, featuring advanced offline mode, interactive push notifications, and mobile-first learning UI. • Web Developer & LMS Portals: Robust backends (Laravel, Node.js) featuring custom course builders, assessments, automated reporting, user roles, and CRM/HR/SSO integrations. • eLearning Standards Compliance: Flawless implementation and debugging of SCORM 1.2 / 2004, xAPI (Tin Can), LTI, and OAuth2 secure authentication. • Interactive & Gamified Content: Custom learning players, microlearning modules, and real-time analytics dashboards. 🛠️ Core Tech Stack & Expertise: • Mobile App Development: react native, flutter developer tools, iOS & Android deployment • Web Developer & Frontend: React, JavaScript, TypeScript, TailwindCSS, Responsive Web • Full Stack Developer Backend: Laravel, Node.js, PostgreSQL, MySQL, Redis • EdTech Protocols: SCORM, xAPI, LTI, REST APIs Let's turn your educational vision into a scalable product. Message me to discuss your project requirements or to schedule a technical consultation!

Full Stack Developer | 5M software End-Users Impacted | $200K+ Total Earnings | Expert-Vetted (Top 1% Upwork) | 31 Projects | 100% Job Success | 12+ Years on Upwork | 5339+ Hours Worked | TOP RATED PLUS – Top 3% of companies | 16+ Countries Covered 🙈 “Can we just quickly fix this?” 🙊 “It’s probably just a small change.” 🙉 “Let’s ship first and think later.” I am a CEO and Business Manager at Peppernode. I create systems where architecture and decisions matter because mistakes cost more than doing it right. Call me Illia. With 15+ years of experience as a Full Stack Developer, I specialize in building scalable SaaS platforms, high-performance mobile applications, and production systems. As a React Full Stack Developer, I've delivered 31 successful projects for clients across 16+ countries. As a React Developer, I've built web applications now used by 5+ million end users worldwide. As a React Native App Developer, I've developed cross-platform mobile applications. As a Python Developer, I've built scalable backend systems and APIs powering SaaS products. 🏆 Why Clients Choose Me As a Full Stack Developer React with 31 successful projects delivered to businesses across 16+ countries, I've helped build products serving more than 5 million end-users worldwide. With 100% Job Success, $200K+ earned, 5,339+ hours worked on Upwork, I bring proven experience designing scalable applications, validating product strategies, and making the right technical decisions from day one. 🚀 SaaS Development As a Full Stack Developer React, I build 30+ modern SaaS platforms with React, Python, Firebase, and scalable architectures. As a React Developer Firebase, I've delivered 20+ SaaS projects, building web applications with connected frontend and backend systems. My experience covers software architecture, MVP development, frontend/backend engineering, REST APIs, payment integrations, database design, cloud deployment, and scalable application development. 📱 React Native App Development As a React Native Developer and React Native App Developer, I build cross-platform applications for iOS and Android. I've delivered 20+ React Native Mobile solutions for startups and established businesses, focusing on performance, reliability, and long-term scalability. As a React Native Developer Expo specialist, I take products from MVP to production, building intuitive user experiences with clean, scalable codebases. As a React Native App Developer, I've built mobile applications used by businesses in 10+ countries. As a Full Stack Developer React Native and Mobile Developer, I've contributed to 20+ mobile products, building connected mobile ecosystems powered by scalable backend services. My work includes React Native, Expo, mobile MVP development, enterprise applications, API integrations, authentication, App Store and Google Play releases, performance optimization, and long-term product support. 🍽 Restaurant Ordering Systems As a Full Stack Developer React, I've built restaurant ordering systems serving thousands of daily users, helping restaurants automate ordering and payments. My solutions have improved operational efficiency by an average of 32% through workflow automation, POS integrations, and real-time order management. As a React Native Mobile Developer, I've developed customer and staff applications that streamline restaurant workflows. As a React Developer and Python Developer, I build reliable restaurant platforms with scalable architectures, secure payment integrations, POS connectivity, inventory synchronization, cloud-based backend services, and high-performance APIs. 📌 Existing Product Modernization As a Full Stack Developer React, I've modernized 20+ existing applications, refactoring unstable codebases, reducing technical debt, and expanding functionality without sacrificing maintainability. 🤖 AI Integrations As a Full Stack Developer AI, I've built 20+ AI integrations using OpenAI API, Gemini, and LangChain, helping businesses add intelligent capabilities. My work includes AI-powered features, conversational chat interfaces, workflow automation, RAG pipelines, AI agents, prompt engineering, and custom LLM integrations that improve productivity and user experience. 🔧 Tech Stack Every successful product starts with discovery, business analysis, architecture, and product strategy. As a Full Stack Developer React Node and Python Full Stack Developer, I've delivered 31 production-ready software products using modern web echnologies. My frontend stack includes React, React Native, Expo, TypeScript, JavaScript, HTML5, CSS3, Tailwind CSS, Next.js. As a Python Full Stack Developer Flask specialist, I build scalable backend systems with Python, FastAPI, Django, Node.js, REST APIs, PostgreSQL, MySQL, Firebase Looking for a React Developer, React Native Developer, Full Stack Developer React Node, or Python Full Stack Developer to build your next SaaS platform, web application, or mobile app? Let's talk