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Hello there! Welcome to my page! 🙂 Ready to start. I propose to start from a call. You will see I am a real person, geek🤓, traveller. 56 projects with 100% JSS taken. Will be glad to help you as well! Just drop me a message or invite. $53M+ Raised by Clients | 84+ Products Delivered | 100% Job Success | 14 Years in SaaS ✅ 14 years as a Full Stack Developer with expertise in react and nodejs, now CTO & Founder of Gearheart, an Enterprise SaaS product development studio ✅ Co-Founder & CTO at Beyond the Wow, an AI-native MVP studio ✅ As a SaaS Developer, I've helped 84+ startups and growth-stage SaaS teams scale their products ✅ Built SmartSuite from scratch as lead Full Stack Developer - $38M raised, 7M+ users ✅ 2-4x faster delivery as a SaaS Developer using Claude Code, Lovable, Cursor, and Replit ✅ Top Developer at Clutch and Goodfirms I'm a CTO and SaaS Developer specialist with 14 years experience as a Full Stack Developer with react expertise for SaaS companies, working as a react developer with python skills. As a SaaS Developer and MVP Developer focused on SaaS architecture and rapid deployment, I personally deliver on 84+ products for 70+ SaaS clients across 7 countries. I work as a react developer with expertise in figma to code conversion, WordPress Developer, or Mobile App Developer, bringing SaaS Developer speed with Full Stack Developer saas depth into every project. 🌟 SAAS DEVELOPER EXCELLENCE My SaaS Developer standard comes from 14 years as a Full Stack Developer fintech, healthcare, crm, ecommerce, and marketplace specialist, delivering results like: - SmartSuite - a SaaS Developer MVP I built from startup concept as React Developer and Full Stack Developer saas specialist: $1.2M ARR in 4 weeks, $38M raised, Capital One trusted - Globalli - a SaaS Developer build for enterprise: HR/payroll across 125+ countries, SOC2 Type II, $15M raised, delivered as a SaaS Developer specialist including NextJS Developer and WordPress Developer work, all as a Full Stack Developer saas architect 🔧 SAAS DEVELOPER & MVP DEVELOPER SERVICES - Discovery & Prototype: clickable prototype in 5 days - NextJS Developer ready for startup scaling - Rescue Diagnosis: SaaS Developer review with Full Stack Developer react expertise, performance audit, stripe payment flow review - MVP & Landing Page: SaaS Developer MVP Development in 3 weeks, React Developer frontend, Software Developer backend - Sprint Subscription: long-term SaaS Developer partner, Mobile App Developer and WordPress Developer support ⚡ MVP SPEED - SAAS DEVELOPER & MVP DEVELOPER DELIVERY - Legal SaaS platform + AI, delivered as a Full Stack Developer llm → 2 months - AI Receptionist with CRM, an ai voice agent developer with vapi retell elevenlabs twilio experience → shipped in weeks - B2B Dental SaaS - SaaS Developer and Full Stack Developer healthcare delivery → 3 weeks - Medical device MVP - MVP Developer, Full Stack Developer with expertise in react and node → 2 weeks - SaaS Marketing web projects: Full Stack Developer webflow, supabase, twilio, react developer with expertise in saas club website 💡 WHY WORK WITH ME - Product Thinking First: as a SaaS Developer I ask "should you build?" not "what to build?" - most Software Developer freelancers skip this step - AI Speed & Quality: as a Full Stack Developer I use Claude Code, Lovable, Cursor as an engineer, not a prompt writer - I'm a Founder Too: Full Stack Web Developer founder mentality, deep SaaS Marketing understanding, real startup experience - Offshore + Enterprise Standard: Ukraine-based Full Stack Developer with NextJS, WordPress, and Mobile App Developer expertise, plus Python Full Stack Developer capability I deliver Web Developer quality with SaaS Marketing outcomes. I cover REST API architecture, NextJS optimization, WordPress customization, and Mobile App Developer delivery. Serving 70+ SaaS Developer clients across 7 countries, 30% return as their SaaS Developer for their next startup project. I build AI-native systems with a SaaS Marketing focus. Every SaaS Developer engagement ships with business metrics first. As a SaaS Developer and Full Stack Developer: $400K+ Upwork | 100% Job Success. ⚙ FULL STACK DEVELOPER & MVP DEVELOPER STACK AI & Integration: Claude Code, OpenAI, FastAPI, LangChain, Vapi, Retell, ElevenLabs, Twilio Frontend: React, TypeScript, NextJS, Vue.js, Webflow, Figma-to-code Backend: Python Full Stack Developer stack: FastAPI, Django, Flask, Node.js, GraphQL, PostgreSQL, Supabase Commerce: Shopify, Stripe (stripe payment flow review, checkout, billing) DevOps: AWS, DigitalOcean, Docker, Kubernetes Every Full Stack Developer and MVP Developer project includes this toolkit. I work as a NextJS Developer, WordPress Developer, and Mobile App Developer specialist, plus Python Full Stack Developer and Software Developer skills - optimized for Full Stack Developer fintech, crm, and ecommerce success from day one.

I help startups and businesses build fast, scalable, and maintainable web applications using Vue.js, Nuxt.js, TypeScript, and modern AI technologies. With 7+ years of commercial experience, I've successfully delivered 50+ projects ranging from SaaS platforms and enterprise dashboards to e-commerce solutions, AI-powered products, and mobile applications. I specialize in building production-ready software with clean architecture, reusable component systems, SSR optimization, API integrations, and high-performance user interfaces. What I can help you build • SaaS Platforms • Admin Dashboards • CRM & ERP Systems • AI Assistants & Chat Interfaces • OpenAI & Gemini Integrations • Mobile Applications • E-commerce Platforms • Internal Business Systems • Real-time Applications • REST & GraphQL Integrations • SEO-Optimized SSR Applications • High-Performance Frontend Architectures Core Technologies Frontend • Vue 3 (Composition API) • Nuxt 3 (SSR / SSG) • TypeScript • JavaScript (ES6+) State Management • Pinia • Vuex UI & Styling • Vuetify 3 • Tailwind CSS • SCSS • Responsive Design • Material Design Backend & APIs • REST APIs • GraphQL • Node.js • Express • PHP Database & Cloud • Supabase • Firebase Testing & Tools • Vitest • Jest • Cypress • Vite • Webpack • Docker • Git CMS • WordPress (ACF) • Strapi • OpenCart AI-Powered Development I actively integrate Artificial Intelligence into commercial products and development workflows. My experience includes: • OpenAI API integrations • Google Gemini • AI Assistants • Intelligent recommendations • AI Automation • AI-powered content generation • Chat interfaces • RSS automation • Prompt Engineering I also use Cursor AI, Claude Code, GitHub Copilot, and Codex to accelerate development while maintaining production-quality code. Recent Experience Senior Frontend Developer — AIR Media-Tech Developing large-scale Vue 3 applications using Nuxt 3, Vuetify, TypeScript, and OpenAI APIs. Designed reusable component architecture, optimized application performance, reduced bundle size by 42%, and improved page load time from 4.2s to 2.4s. Senior Frontend Developer — Vantino Led migration from Vue 2 to Nuxt 3 SSR, improving SEO by 67% and increasing organic traffic by 45%. Built scalable applications serving more than 50,000 monthly users. Frontend Engineer — Purple Ad Labs Built complex advertising platforms, integrated third-party APIs, developed backend services with Node.js, and optimized data synchronization performance. Freelance Frontend Developer Delivered 50+ successful projects across SaaS, e-commerce, marketing, and corporate sectors. Worked with startups and established businesses from idea to production. Why clients work with me ✔ Clean, scalable architecture ✔ Business-oriented development ✔ Strong communication ✔ Fast delivery without sacrificing quality ✔ Pixel-perfect responsive UI ✔ Performance optimization ✔ SEO-first mindset ✔ AI integration expertise ✔ Long-term maintainable code Whether you need a modern Vue/Nuxt application, AI integration, mobile app, or a complete SaaS platform, I focus on delivering reliable software that creates real business value.

✅ Top-Rated Upworker - Senior Hardware Engineer, Mass Production Expert, Firmware and Software developer - To Get Your Project Developed From Scratch To Mass Production. With 30 years experience in electronics engineering designed power, analog and digital electronics, including PCB, embedded and mechanics design. I have served a wide variety of industries and have developed initial concepts and prototype devices as well as producing products that go into full scale production manufacturing. Key Offerings: •Digital circuits design •Power circuits design •Analog, precision and low noise circuits PCB design •Housing and mechanics for electronics •Consulting in electronics •Cost optimization of existing projects •Developing modern analogues of existing devices •Software and firmware development •Server solutions Projects developed by me include: - Compact single board ARM computer/router - Virtual reality suit for medical purposes - Autonomous, solar-powered lamp with controller for DIN-rail - Smart Battery Management System (BMS) - Linux body cam

📩 𝐒𝐞𝐧𝐝 𝐦𝐞 𝐲𝐨𝐮𝐫 𝐜𝐨𝐝𝐞𝐛𝐚𝐬𝐞 𝐨𝐫 𝐢𝐝𝐞𝐚 - 𝐈'𝐥𝐥 𝐝𝐞𝐥𝐢𝐯𝐞𝐫 𝐚 𝐟𝐫𝐞𝐞 𝐭𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐜𝐨𝐧𝐬𝐮𝐥𝐭𝐚𝐭𝐢𝐨𝐧 & 𝐜𝐨𝐝𝐞 𝐚𝐮𝐝𝐢𝐭 (Available today - 17.09) I help businesses build scalable SaaS platforms & MVPs, AI-powered features, and modern web products using Javascript - React.js/Node.js/Next.js, TypeScript, Python, and cloud technologies - 𝟑𝐱 𝐟𝐚𝐬𝐭𝐞𝐫 𝐫𝐞𝐩𝐨𝐫𝐭𝐢𝐧𝐠, 𝟐𝟎-𝟐𝟓% 𝐥𝐨𝐰𝐞𝐫 𝐨𝐩𝐞𝐫𝐚𝐭𝐢𝐨𝐧𝐚𝐥 𝐜𝐨𝐬𝐭𝐬, 𝟐-𝟑𝐱 𝐟𝐚𝐬𝐭𝐞𝐫 𝐝𝐚𝐬𝐡𝐛𝐨𝐚𝐫𝐝𝐬, 𝐚𝐧𝐝 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 𝐬𝐜𝐚𝐥𝐞𝐝 𝐭𝐨 𝟖𝟎𝟎𝐊+ 𝐮𝐬𝐞𝐫𝐬. 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤: Full-Stack Development • JavaScript • TypeScript • React • Next.js • Node.js • Python • Web Application • Web Development • API • Web Design • API Integration • Software Development • Software Architecture & Design • PostgreSQL • Firebase • Stripe • OpenAI API • SaaS • • HTML • HTML5 • CSS • CSS3 • Tailwind CSS • Bootstrap 𝐑𝐞𝐜𝐞𝐧𝐭 𝐰𝐨𝐫𝐤𝐬: B2B analytics/demand forecasting SaaS - cut reporting time up to 3x, reduced operational costs 20-25% B2B visitor-tracking & CRM platform - cut dashboard load time 2-3x, automated lead handoff via HubSpot/ERP integration LegalTech platform (web + mobile + real-time chat) - booking time cut from days to minutes, 30-40% lower dev cost vs. full rebuild AI-powered learning platform (800K+ users) - study calendar, quiz engine, and personalized study sessions 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈'𝐯𝐞 𝐰𝐨𝐫𝐤𝐞𝐝 𝐰𝐢𝐭𝐡 As a Full Stack AI SaaS Developer, I worked with: ✔️ SaaS & B2B Platforms ✔️ Legal Tech ✔️ E-commerce ✔️ EdTech ✔️ Consumer Mobile Apps ✔️ MVP 𝐖𝐡𝐲 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐜𝐡𝐨𝐨𝐬𝐞 𝐦𝐞: ✅ 10+ years of building SaaS platforms & MVP ✅ 94% of projects delivered on time and within scope ✅ 15-30 minute response time for critical tasks ✅ Proactive communication, clear technical ownership ✅ Comfortable working inside existing/legacy codebases, not just greenfield builds ✅ Worked with 9+ clients across the USA, Australia, and Europe Clients typically bring me in when they need: • a Full Stack Developer who can own frontend and backend • a SaaS Developer who understands product growth and scaling constraints • a Backend Developer experienced with real production systems • a full stack web developer for complex workflows and modern interfaces • a full stack developer crm or full stack developer marketplace for multi-role business logic • a Full Stack Developer who can work directly or involve the right specialists from my team • an AI Developer who can automate workflow Ready to build something that actually works? Send me your project details, and let's turn it into results.

🏆 Flutter Developer | Mobile App Developer | Full Stack Developer ⭐️⭐️⭐️⭐️⭐️ "Maksym is a rare Flutter Developer who thinks like a Full Stack Developer." — Client, GreenTech 🔥 ACHIEVEMENTS AS A FLUTTER DEVELOPER, MOBILE APP DEVELOPER & FULL STACK DEVELOPER ✔️ 8+ years and 40+ shipped products as a Flutter Developer, Mobile App Developer, and Full Stack Developer across iOS, Android, and web. ✔️ As a Flutter Developer and FlutterFlow specialist, I built a solar energy app with Firebase and real-time IoT data — result: +45% active monthly users. ✔️ As a Mobile App Developer for a gov telemedicine platform, I shipped video consultations in Flutter Firebase — result: +40% remote consultations, –30% in-person visits. ✔️ As a Full Stack Developer, I paired Flutter Dart mobile clients with React and Laravel backends, cutting release cycles by 30%. ✔️ 10,000+ Upwork hours and 100% Job Success as a Flutter Developer, Full Stack Developer, and Mobile App Developer. ✔️ 1.2★ to 4.9★ rating recovery as a Mobile App Developer via Crashlytics-driven fixes on a high-load mobility app. ✔️ As a full stack developer react, I connected Flutter mobile app development to Node.js and MongoDB APIs, lifting checkout conversion by 22%. ✔️ 12+ FlutterFlow / Bubble no-code builds delivered as a Flutter Developer, alongside custom Flutter Dart code for teams needing full control. ✔️ As a Mobile App Developer and senior mobile app developer, I mentor small teams on Flutter Firebase architecture and App Store/Play Store release. ✔️ 20+ mobile app design and mobile app development projects, from mobile ui ux designer wireframes to production Flutter Dart builds. 🚀 WHERE I DELIVER AS A FLUTTER DEVELOPER, MOBILE APP DEVELOPER & FULL STACK DEVELOPER ✔️ Flutter Developer work: FlutterFlow, Flutter Firebase, Flutter Dart, Flutter mobile app developer builds, flutter app developer sprints, flutter laravel backend pairings, and flutter full stack developer integrations. ✔️ Mobile App Developer work: mobile application developer builds spanning mobile app design, mobile app marketing funnels, mobile game developer prototypes, mobile app tester QA passes, and mobile app builder no-code (Bubble, Adalo, Glide) MVPs. ✔️ Full Stack Developer work: python full stack developer APIs, wordpress full stack sites, .net full stack integrations, full stack developer react dashboards, javascript fullstack builds, fullstack web developer and senior fullstack developer architecture — full-stack development end to end. ✔️ As a web developer and react developer, I build react native and react native developer apps sharing logic with Flutter mobile app development, so clients get a Mobile App Developer and Full Stack Developer under one roof. 📌 MORE WAYS I HELP CLIENTS ✔️ As a senior mobile app developer and Full Stack Developer, I run wordpress developer projects on a clean, SEO-first structure — real seo wins, not guesswork. ✔️ As a react developer and react native developer, I extend Flutter mobile app development with flutter app developer sprints, flutter laravel integrations, and flutter mobile app developer consulting for teams that already picked their stack. ✔️ As a full-stack web developer and blockchain developer, I connect smart-contract front ends to mobile app marketing dashboards, mobile application developer backends, and mobile ui ux designer flows. ✔️ From flutter full stack developer builds to python full stack developer APIs, wordpress full stack sites, and .net full stack integrations — plus javascript fullstack, fullstack web developer, and senior fullstack developer work, with full-stack development delivered end to end. 🏭 INDUSTRIES: GreenTech · Public Healthcare · FinTech · Mobility · E-commerce · EdTech ⚙️ TECH STACK IN ACTION ✔️ 40+ cross-platform builds in Dart and Flutter across Smartphone, Android App Development, and iOS Development projects — plus native Android and Swift / Apple Xcode when a client needs a fully native layer. ✔️ Full Stack Developer web layer: Node.js, PHP, and JavaScript APIs served through HTML, CSS, and Angular front ends, wired to the same Flutter mobile app development codebase. ✔️ Engineering discipline: Git-based workflows, Agile Software Development sprints, and Software Architecture & Design reviews keep Mobile App Developer and Full Stack Developer builds — mobile and Desktop Application alike — shippable on schedule. ✔️ Cloud and data layer: Google Cloud Platform hosting, Firebase Cloud Firestore models, secure User Authentication, and REST API integrations power the backend for every Flutter Developer project. 💼 EVERY PROJECT INCLUDES As a Flutter Developer, Mobile App Developer, and Full Stack Developer, I own the build end-to-end — clean architecture, tested releases, clear handoff docs. 📩 Send me your app idea idea or codebase — I'll reply with a free technical breakdown as your next Flutter Developer, Mobile App Developer, or Full Stack Developer.

I build production-ready SaaS, sports betting, and trading systems with real-time data, complex API integrations, and automation. With 5+ years of full-stack experience and a PhD in Computer Science, I can take a product from architecture to AWS deployment. Clients usually come to me when they need to replace a limited no-code solution, process live data, integrate multiple external services, automate complex workflows, or stabilize an existing product. SELECTED PROJECTS 1) Real-time sports analytics platform Rebuilt a slow and expensive Bubble-based product using React, Node.js, Python, and a scalable event-driven AWS architecture. The new system supports pre-match odds updates every 5 minutes and live odds and scores every 15 seconds. I also replaced a costly AppSync Event API setup with an ALB and dedicated EC2 WebSocket hub, preserving low-latency delivery while optimizing infrastructure costs. 2) AI-powered web data extraction Built a platform for processing dynamic and protected websites, extracting relevant article content without headers, footers, navigation, or unrelated elements. The system combines browser automation, anti-bot handling, content normalization, LLM-based processing, and structured Excel/CSV exports. 3) Betting and trading automation Developed an automated Kalshi RFQ market-making system with sportsbook integrations, market mapping, pricing logic, risk controls, monitoring, and execution within a 3-second confirmation window. I have also built Forex risk-management tools, betting analytics systems, arbitrage scanners, and automated trading workflows. HOW I CAN HELP - Build a SaaS product or MVP from architecture to production - Develop Python, FastAPI, Node.js, and Next.js applications - Build real-time systems using WebSockets, caching, queues, and background workers - Integrate sportsbooks, Stripe, AI services, and third-party APIs - Develop web scraping, browser automation, and data pipelines - Migrate products from Bubble or other no-code platforms - Audit, stabilize, and optimize existing applications - Deploy and scale applications on AWS CORE STACK Frontend: React, Next.js, TypeScript, Redux, Tailwind CSS Backend: Python, FastAPI, Node.js, Express, NestJS Databases: PostgreSQL, MongoDB, Redis, DynamoDB Cloud: AWS, Docker, CI/CD, Nginx AI: OpenAI, Claude, Gemini, RAG, PyTorch Integrations: WebSockets, Stripe, sportsbook APIs, blockchain wallets I focus on practical, reliable systems rather than prototypes. Send me a brief description of your product, current stack, and main technical challenge, and I’ll help determine the most effective implementation path.