Fullstack SAAS developer | React developer | Custom SAAS Development | SAAS CRM | SAAS MVP | Scalable SAAS Solutions | SAAS Only Built 20+ SaaS products generating revenue for startups and growing businesses. $90K+ earned on Upwork with 100% Job Success. Expert in React, Next.js, Node.js, AI applications, and scalable SaaS platforms. With extensive experience in full-stack development, I specialize in building high-performance React applications, AI-powered platforms, dashboards, CRMs, marketplaces, fintech apps, and custom SaaS solutions with clean architecture and scalable code. 𝗠𝘆 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: • SaaS Application Development • React.js Development • Next.js Development • TypeScript • JavaScript (ES6+) • Frontend Development • Full Stack Development • Node.js & Express.js • AI / OpenAI / LLM Integrations • Dashboard & Admin Panel Development • API Integration & Development • Tailwind CSS / Material UI / ShadCN • Redux / Zustand / Context API • Firebase / Supabase • MongoDB / PostgreSQL / MySQL • AWS / GCP / Vercel Deployment 𝗜 𝗰𝗮𝗻 𝗵𝗲𝗹𝗽 𝘆𝗼𝘂 𝘄𝗶𝘁𝗵: ✔ Custom SAAS React Web Applications ✔ SaaS Platforms ✔ AI-Powered Applications ✔ CRM & ERP Systems ✔ Real-Time Dashboards ✔ Trading & Financial Platforms ✔ Marketplace Development ✔ Responsive UI/UX Development ✔ API Integrations ✔ Performance Optimization ✔ Existing App Scaling & Refactoring I focus on writing maintainable, production-ready code with strong attention to performance, scalability, and user experience. Whether you need a complete product build, frontend revamp, MVP development, or ongoing development support, I can help deliver reliable and high-quality solutions. 𝗪𝗵𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝘄𝗼𝗿𝗸 𝘄𝗶𝘁𝗵 𝗺𝗲: • Clean and scalable architecture • Fast communication and reliable delivery • Strong product and SaaS understanding • Experience with complex business logic • Long-term support and collaboration • Focus on quality, performance, and UX If you’re looking for a SAAS React developer who can build scalable, modern, and business-focused applications. let’s connect. SAAS React Developer | React.js Developer | React Frontend Developer | React Full Stack Developer | Next.js Developer | TypeScript Developer | JavaScript Developer | Frontend Engineer | UI/UX Frontend Developer | React SaaS Developer | React Dashboard Developer | React Web Application Developer | React Performance Optimization Expert | React Component Library Developer | SPA Developer | Redux Developer | Tailwind CSS Developer | API Integration Expert | Responsive Web Developer | Modern Frontend Developer | Fullstack SAAS Developer | SAAS CRM | SAAS MVP | Custom SAAS | SAAS Analytics

I'm a Full Stack Developer React Node, SaaS Developer, and Node.js Developer with 15 years of experience, covering Full Stack development (both Front-end development and Back-end development), SaaS development, Mobile App Development, and AI Automation. A few facts about me: 🏆 100% Job Success score 🏆 125+ projects delivered from MVP to enterprise projects 🏆 10,000+ active users across delivered projects What I can develop as a Full Stack Developer React Node and a SaaS Developer: ✔️SaaS MVP, AI-powered SaaS platforms, Multi-tenant SaaS platforms ✔️ AI Automation, AI workflows, AI Chatbot and AI Agent Development that reduces manual operations by up to 70% ✔️ Prototype and proof of concept development saving 40% of budget as a Full Stack node.js react developer ✔️ Custom CRM and ERP systems, Internal tools and other management solution cutting admin costs by 40% ✔️ Booking systems and booking platforms that boosting daily bookings by 30% ✔️ E-commerce and marketplaces platforms boosting sales conversions by 25% ✔️ Scalable web applications and websites ensuring 99.9% uptime as a Full Stack Web Developer ✔️ Admin panel, admin dashboard, and analytics dashboard cutting reporting time by 60% ✔️ Custom Web Application and other Web Development projects driving 40% more organic traffic ✔️ Mobile applications from design to iOS and Android App Development, covered by React Native developer, Mobile App developer, and Flutter developer positions ✔️ Code audit, Software Architecture & Design, production delivery, debugging, and production bug fixing, reducing errors by 40%. ✔️ role-based access, payment flows, billing and subscription logic, cutting failed payments by 30% ✔️ User Authentication, user management systems, system administrator, and business operations workflows for 10,000+ users Why clients choose me as Full Stack Developer React Node and Node.js Developer: ✔️ MVP development in 4–6 weeks ✔️ AI-first approach using Cursor, Claude Code, Codex, and Lovable for up to 30% faster development as a Full Stack AI Engineer ✔️ AI Development and AI App Development experience across 35+ AI-powered projects ✔️ Improving page load speed by 55% as a Front End developer React and Next.js Developer ✔️ Increased database/API response speed by 5x as a Node.js backend developer and NestJS developer ✔️ Built 120+ API endpoints, microservices, and serverless functions as a MERN Stack developer and javascript developer ✔️ Managed 500K+ records with Database Architecture, Database Design, Prisma, and RLS ✔️ Supported 99.9% uptime with cloud deployment and production deployment ✔️ Reduced deployment failures by 30–40% through CI/CD and release automation ✔️ Handled migration with clear timeline, milestone planning, and long-term maintainability ✔️ Improved user experience, engagement, and visibility through dashboards used by 10K+ users As a Senior Full Stack Developer React Node and SaaS Developer, I have 15+ years of experience with: ⚙️ JavaScript, TypeScript, Python, PHP ⚙️ React, Next.js, App Router, Vite, Vue.js, Angular, Redux, jQuery, HTML, HTML5, CSS, CSS 3, Canvas ⚙️ Node.js, NestJS, Express, WordPress ⚙️ Tailwind CSS, Material UI, Bootstrap, Shadcn/ui ⚙️ SQL, PostgreSQL, MySQL, MongoDB, Supabase, Firebase, Firestore, Redis, Prisma, RLS, Auth ⚙️ Amazon Web Services, AWS S3, AWS Lambda, Google Cloud Platform, Microsoft Azure, Vercel, Railway, DigitalOcean, Cloudflare, Docker, Kubernetes ⚙️ CI/CD (GitHub Actions, GitLab CI), Testing (Jest, Playwright), Monitoring (Sentry), Logging ⚙️ Git (GitHub, GitLab, Bitbucket) ⚙️ LLM, LangChain, RAG, Artificial Intelligence ⚙️ Zapier, n8n, Make, GoHighLevel, GHL ⚙️ HIPAA, GDPR, SOC 2 ⚙️ Figma, Adobe XD, Sketch As a Senior Full Stack Developer React Node and Node.js Developer I have deep experience in API integration: RESTful API, third-party REST API, webhooks, OpenAI API, Stripe API, Twilio API, Anthropic Claude API, ElevenLabs API, ChatGPT API, GraphQL API, WhatsApp business API, Google OAuth, and various Google APIs. As Full Stack Developer React Node and Full Stack Developer SaaS I experience in projects for: Hospitality, Travel, Healthcare, Fitness, Ecommerce, FinTech, Logistics, Finance, Education, E-learning, Retail, HR, Business Services, Media & Entertainment, AI, SaaS marketing, Real Estate platform, etc. 💪 As CTO of Malevich Studio, I can provide: ✔️ UX & UI / Web Design: UX Designer support with Figma, Responsive Design, Adaptive Web Design, Software Design, and Adobe Photoshop for 25–40% conversion improvement ✔️ WordPress developer and cms developer for mobile friendly website support ✔️ Python developer, Full Stack developer Laravel Vue, Java and Ruby on rails 🚀 Click “Invite” if you need a Full Stack Developer React Node, Full Stack AI SaaS Developer, or Node.js Developer.

$53M+ Raised by Clients | 84+ Products Delivered | 100% Job Success | 14 Years in SaaS ✅ 14 years as CTO & Founder of Gearheart, Enterprise SaaS product development studio ✅ Co-Founder & CTO at Beyond the Wow, an AI-native MVP studio ✅ Helped 84+ startups and growth-stage SaaS teams scale their products ✅ Built SmartSuite from scratch — $38M raised, 7M+ users ✅ 2–4x faster delivery using Claude Code, Lovable, Cursor, and Replit ✅ Top Developer at Clutch and Goodfirms I'm a CTO with 20 years of engineering experience, specializing in Python Full Stack Developer SaaS and Full Stack Developer React architecture. I've learned that most founders don't fail because they can't build, they fail because they build the wrong thing. My job is to make sure that doesn't happen to you. As an MVP Developer, I focus on SaaS architecture and MVP Development — taking products from idea to live in weeks. My team delivers Full Stack Developer React and Python engineering with AI API Integration built in by default. Behind me is a team of 23 senior engineers with 14 years in SaaS — together we've shipped 84+ products for 70+ clients across 7 countries. Whether you need AI SaaS Development, a lean SaaS MVP, or full-scale SaaS Business Development — we bring both the speed and the engineering depth to make it production-ready. 🌟OUR ENGINEERING STANDARD Our standard for MVP Development comes from Gearheart, where we've spent 14 years as a SaaS Developer studio building enterprise products: - SmartSuite — SaaS Developer and MVP Development from scratch: $1.2M ARR in 4 weeks, $38M raised, trusted by Capital One. Coordinated with up to 4 external teams simultaneously - Globalli — Python Full Stack Developer SaaS and SaaS Developer project: HR/payroll across 125+ countries, SOC2 Type II, $15M raised. 15+ modules, 21 engineers at peak, 3 years 🔧 WHAT I CAN HELP YOU WITH - Discovery & Prototype: For every MVP Developer engagement — clickable prototype in 5 days using AI Development tools: Lovable, Replit, Cursor - Rescue Diagnosis: Code broken in production? Full review by senior Full Stack Developer React and AI Development engineer. QA, security audit, sprint plan - MVP & Landing Page: MVP Development in 3 weeks — 2–4x faster than traditional agencies. AI API Integration, auth, onboarding, deployment included - Sprint Subscription: Ship features on a regular sprint pace. Your long-term Full Stack Developer React, SaaS Developer and MVP Developer partner ⚡ OUR MVP SPEED - Legal SaaS platform + AI API Integration knowledge base → ~2 months - AI Receptionist with AI API Integration + CRM → shipped in weeks - B2B Dental Referral SaaS — MVP Developer delivery → 3 weeks - Medical device MVP Development — ICP + PMF + build → 2 weeks 💡WHY WORK WITH ME - Product Thinking First: We start at "should you build this?" not "what do you want us to build?" Most developers skip this entirely. We don't - AI Speed, Engineering Quality: We use Claude Code, Lovable, and Cursor as engineers, not prompt writers. AI Development is 2–4x faster without sacrificing production readiness. Need AI SaaS Development or MVP Development? We do both - We're Startup Founders Too: As founders ourselves, we know firsthand the challenges you're facing — including where AI Development fits and where it doesn't - Offshore Pricing, Enterprise Standard: Ukraine-based SaaS Developer team. Competitive pricing. Enterprise-level SaaS Developer quality — delivered by Python Full Stack Developer SaaS and Full Stack Developer React engineers who've built at scale Our team has delivered AI SaaS Development projects, Full Stack Web Developer builds, and App Developer with AI integrations — enterprise standard Our engineers cover the full stack: Software Developer tooling, REST API architecture, Web Developer interfaces, App Developer delivery. Whether you need a React Developer who owns the full product or a team that scales with you — we've done it both ways. We've worked with 70+ clients as an MVP Developer and SaaS Developer team — from early-stage founders to growth-stage companies across 7 countries. 30% return for their next product. Our Python Full Stack Developer SaaS and Full Stack Developer React engineers have built systems where AI Development is not optional — it's the delivery model. AI API Integration is embedded in every MVP Development sprint from day one. As an MVP Developer team: $400K+ on Upwork | 100% Job Success. AI Development and Python Full Stack Developer SaaS approach gives you depth without agency overhead. ⚙TECH STACK AI & Integration: AI API Integration: Claude Code, OpenAI, FastAPI, LangChain Frontend: Full Stack Developer React: React, TypeScript, Next.js, Vue.js Backend: Python Full Stack Developer SaaS: FastAPI, Django, Node.js, GraphQL, PostgreSQL DevOps: AWS, DigitalOcean, Docker, Kubernetes Every Python Full Stack Developer SaaS project we take on includes MVP Developer speed, AI Development, and AI API Integration by default

𝗜 𝗮𝗺 𝗨𝗺𝗮𝗿 𝗗𝗮𝗿𝗮𝘇, 𝗮𝗻 𝗘𝘅𝗽𝗲𝗿𝘁 𝗦𝗮𝗮𝗦 𝗮𝗻𝗱 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝘄𝗶𝘁𝗵 𝟭𝟮 𝗬𝗲𝗮𝗿𝘀 𝗼𝗳 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝗶𝗻 𝗠𝗘𝗥𝗡, 𝗡𝗲𝘅𝘁.𝗷𝘀 𝗮𝗻𝗱 𝗔𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 I help startups and growing businesses build production-ready SaaS platforms and AI-powered web applications using React, Next.js and MERN. With 12 years of full-stack experience, I have helped founders go from idea to launched product without the back-and-forth, missed deadlines or technical debt that slows most projects down. I use AI tools throughout my development process from planning and code review to testing and debugging so you get faster turnaround, fewer bugs and cleaner code from day one. 𝗪𝗵𝗮𝘁 𝗜 𝗛𝗲𝗹𝗽 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗪𝗶𝘁𝗵: 📌 SaaS platform development end-to-end, from architecture to launch 📌 AI-powered web apps OpenAI, ChatGPT and custom LLM integrations 📌 MVP development for startups 📌 Full-stack web applications 📌 Authentication, access control & multi-tenant systems 📌 Subscription & billing systems (Stripe, PayPal, recurring payments) 📌 Admin dashboards, analytics & reporting panels 📌 API integrations (Stripe, OpenAI, Google, Zoom and more) 📌 Performance optimization & scalable deployments 📌 Technical architecture planning & product roadmap 𝗖𝗼𝗺𝗽𝗹𝗶𝗺𝗲𝗻𝘁𝗮𝗿𝘆 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗖𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 Not sure how to move forward with your product? I can help you clarify: • The right tech stack for your goals • MVP scope and feature prioritization • Timeline and budget expectations • System architecture decisions • Whether your current product is built correctly I offer a complimentary strategy session to help you build a clear, practical execution plan before a single line of code is written. 💻 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸: 𝗙𝗿𝗼𝗻𝘁 𝗘𝗻𝗱 JavaScript | TypeScript | React | Next.js | Angular | Vue.js | Tailwind CSS 𝗕𝗮𝗰𝗸 𝗘𝗻𝗱 Node.js | NestJS | Python | Django | PostgreSQL | MongoDB | MySQL | GraphQL | REST APIs | WebSockets 𝗔𝗣𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 OpenAI / ChatGPT | Stripe | PayPal | Google | Zoom | and more 𝗗𝗲𝘃𝗢𝗽𝘀 & 𝗖𝗹𝗼𝘂𝗱 AWS | Firebase | GCP | Azure | Docker | Vercel | CI/CD 𝗧𝗲𝘀𝘁𝗶𝗻𝗴 Jest | Mocha | TDD 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝗧𝗼𝗼𝗹𝘀 Git | npm | Webpack | Babel | Agile Methodology | Nginx 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 𝗜'𝘃𝗲 𝗪𝗼𝗿𝗸𝗲𝗱 𝗪𝗶𝘁𝗵: • B2B SaaS Platforms scalable multi-tenant systems for growing startups • CRM & Sales Tools custom pipelines, lead tracking and analytics • Project & Team Management Apps workflow-driven productivity tools • E-commerce & Subscription Platforms secure checkout, portals and renewals • Learning & Productivity Platforms SaaS products for training and collaboration ✅ 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲: • Proven record delivering SaaS products that scale and perform • Deep expertise in MERN, Next.js and modern AI integrations • Strong focus on security, clean architecture and user experience • Transparent communication and reliable project management • Long-term commitment to quality, performance and measurable results 𝗪𝗵𝗮𝘁 𝗜 𝗕𝗿𝗶𝗻𝗴 𝘁𝗼 𝗬𝗼𝘂𝗿 𝗣𝗿𝗼𝗷𝗲𝗰𝘁: 𝗧𝗮𝗶𝗹𝗼𝗿𝗲𝗱 𝗦𝗮𝗮𝗦 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: Crafting custom web and SaaS solutions designed specifically to meet your business objectives. 𝗜𝗻𝗻𝗼𝘃𝗮𝘁𝗶𝘃𝗲 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻: Utilizing APIs and cutting-edge technologies to boost functionality, streamline processes and increase efficiency. 𝗨𝘀𝗲𝗿-𝗖𝗲𝗻𝘁𝗿𝗶𝗰 𝗔𝗽𝗽𝗿𝗼𝗮𝗰𝗵: Developing intuitive, high-quality applications that enhance user experience, drive growth and ensure satisfaction. I believe in 𝘁𝗿𝗮𝗻𝘀𝗽𝗮𝗿𝗲𝗻𝗰𝘆, 𝗿𝗲𝗹𝗶𝗮𝗯𝗶𝗹𝗶𝘁𝘆 𝗮𝗻𝗱 𝗹𝗼𝗻𝗴-𝘁𝗲𝗿𝗺 𝗰𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗶𝗼𝗻. My goal is to build software that performs seamlessly, scales efficiently and supports your business for years to come. 𝗟𝗲𝘁'𝘀 𝗰𝗼𝗻𝗻𝗲𝗰𝘁 𝗮𝗻𝗱 𝗯𝗿𝗶𝗻𝗴 𝘆𝗼𝘂𝗿 𝗻𝗲𝘅𝘁 𝗦𝗮𝗮𝗦 𝗽𝗿𝗼𝗱𝘂𝗰𝘁 𝘁𝗼 𝗹𝗶𝗳𝗲.

I help startups, founders, and businesses with Full Stack Development to build scalable SaaS platforms, AI-powered applications, web apps, and mobile apps using React, Next.js, Node.js, React Native, MongoDB, and OpenAI. As a Full Stack Developer with 8+ years of experience, I have built and launched 25+ products including SaaS platforms, startup MVPs, AI-integrated systems, healthcare software, eCommerce platforms, marketplaces, CRM systems, LMS platforms, and custom business automation tools. My expertise includes: • SaaS MVP Development • AI Integration & Automation • React / Next.js Frontend Development • Node.js Backend & API Development • Mobile Apps (React Native) • CRM & Admin Dashboards • Marketplace Platforms • Custom Business Automation I can help you: • Build scalable SaaS products • Develop AI-powered features using OpenAI APIs • Create fast and modern React/Next.js applications • Build secure backend systems and APIs • Launch MVPs quickly for startups • Improve workflows through automation Industries I’ve worked with include: • SaaS & Startups • Healthcare • eCommerce • Education • Marketplaces • Creator Platforms • Small Businesses Why clients work with me: • Clear communication • Fast execution • Business-focused development • Clean scalable architecture • Long-term support Whether you need an MVP, SaaS platform, AI integration, or a complete product built from scratch, I can help turn your idea into a scalable solution.

Full-Stack Developer | Backend Developer | SaaS Developer | MERN Pro Hi, I am Gaurav Kumar, a Full-Stack Developer specializing in Backend Development, SaaS Applications, and MERN Stack solutions. I help startups, entrepreneurs, agencies, and established businesses build secure, scalable, and high-performing web applications that drive growth and deliver exceptional user experiences. With years of experience in modern web development, I have successfully developed SaaS platforms, CRM systems, marketplaces, business automation tools, dashboards, enterprise applications, and custom web solutions. My expertise covers the entire development lifecycle, from product planning and architecture design to deployment, optimization, and ongoing support. ----------- My Expertise -------------- Full-Stack Development - Custom Web Application Development - Enterprise Software Development - Scalable Application Architecture - Frontend & Backend Development - API Development & Integration - Cloud-Based Applications Backend Development - Node.js Development - Express.js Development - RESTful API Development - Database Architecture & Optimization - Authentication & Authorization Systems - Payment Gateway Integration - Server Performance Optimization MERN Stack Development - MongoDB - Express.js - React.js - Node.js - Redux - Next.js - TypeScript SaaS Development - SaaS MVP Development - Multi-Tenant SaaS Platforms - Subscription-Based Systems - User Management & Permissions - Analytics Dashboards - Workflow Automation Solutions - Scalable SaaS Architecture Technologies I Work With - JavaScript (ES6+) - TypeScript - React.js - Next.js - Node.js - Express.js - MongoDB - PostgreSQL - MySQL - Redis - Docker - AWS - Firebase - GraphQL - REST APIs - Git & GitHub What I Can Build ✔ SaaS Platforms ✔ CRM & ERP Systems ✔ Marketplace Applications ✔ Business Automation Tools ✔ Admin Dashboards ✔ Startup MVPs ✔ Booking & Scheduling Platforms ✔ API-Driven Applications ✔ Real-Time Applications ✔ Enterprise Portals ✔ AI-Powered Web Applications ✔ Custom Software Solutions Why Clients Choose Me I believe successful software is more than just clean code. It should be secure, scalable, maintainable, and aligned with business goals. When working on a project, I focus on: - Scalable Architecture - Clean & Maintainable Code - High Performance & Security - Modern Development Practices - Business-Oriented Solutions - Long-Term Scalability - Exceptional User Experience Whether you need a complete SaaS product, a custom web application, a robust backend system, API development, or a full MERN Stack solution, I can help transform your idea into a reliable and scalable digital product. Let's discuss your project and build software that creates real business value and long-term success. Core Skills: Full-Stack Development, Backend Development, SaaS Development, MERN Stack Development, React.js, Next.js, Node.js, Express.js, MongoDB, PostgreSQL, API Development, JavaScript, TypeScript, Cloud Solutions, Startup MVP Development, Enterprise Application Development. 🚀

Available today [ 03.07 ] 𝙏𝙚𝙡𝙡 𝙢𝙚 𝙖𝙗𝙤𝙪𝙩 𝙮𝙤𝙪𝙧 𝙥𝙧𝙤𝙟𝙚𝙘𝙩. 𝙄'𝙡𝙡 𝙧𝙚𝙥𝙡𝙮 𝙛𝙖𝙨𝙩. 𝙄𝙛 𝙞𝙩'𝙨 𝙖 𝙛𝙞𝙩, 𝙬𝙚'𝙡𝙡 𝙟𝙪𝙢𝙥 𝙤𝙣 𝙖 𝙛𝙧𝙚𝙚 𝙘𝙖𝙡𝙡 - 𝙮𝙤𝙪'𝙡𝙡 𝙜𝙚𝙩 𝙖 𝙘𝙡𝙚𝙖𝙧 𝙥𝙡𝙖𝙣 𝙖𝙣𝙙 𝙧𝙤𝙖𝙙𝙢𝙖𝙥, 𝙬𝙝𝙚𝙩𝙝𝙚𝙧 𝙬𝙚 𝙬𝙤𝙧𝙠 𝙩𝙤𝙜𝙚𝙩𝙝𝙚𝙧 𝙤𝙧 𝙣𝙤𝙩. I build SaaS platforms and AI-powered web apps that actually work in production - not just look good in a demo. If you need someone who's done it before (and has the scars to prove it), you're in the right place. 𝙒𝙝𝙖𝙩 𝙄 𝙖𝙘𝙩𝙪𝙖𝙡𝙡𝙮 𝙙𝙤: Most of my work falls into three buckets: 1. SaaS platforms - from MVP to scale-up. I've built marketplaces, booking systems, multi-tenant dashboards, billing portals, and internal tools. - Ticket Fairy ($100M+ in transactions, 100+ tenants), - Keyword (2,000+ clients, 50TB data), - Zerobroker ($6.5M raised). React, Next.js, Node.js, Laravel, PostgreSQL, Stripe - whatever fits the job. 2. AI agents and automation - not demos, production. - Arnata: 200,000+ tasks processed by autonomous AI agents. LangChain, LangGraph, CrewAI, OpenAI, Claude. Tool calling, RAG, human-in-the-loop, full audit trails. I don't build chatbots that hallucinate - I build AI that does real work and logs every decision. 3. Existing codebases - audit, fix, scale. I step into live products and make them better without breaking what works. - Keyword: rebuilt the data pipeline without touching auth, zero downtime. - Ticket Fairy: joined mid-flight, scaled to $100M+. - Zerobroker: took over an existing platform, stabilized, shipped. 𝙎𝙩𝙖𝙘𝙠 𝙄 𝙪𝙨𝙚 𝙙𝙖𝙞𝙡𝙮: React, Next.js, Vue.js, Node.js, Python, PHP/Laravel, PostgreSQL, Supabase, AWS, Stripe, LangChain, OpenAI, Claude. 𝙒𝙝𝙖𝙩 𝙮𝙤𝙪 𝙜𝙚𝙩 𝙬𝙤𝙧𝙠𝙞𝙣𝙜 𝙬𝙞𝙩𝙝 𝙢𝙚: - Someone who asks "why" before "how" - Clean, maintainable code - not spaghetti - Fixed-price milestones or hourly - whatever fits your budget - 90% client retention over 10+ years. People stick around. If you've got a real project and need someone who can own it end-to-end, let's talk!

10+ Years as a Full stack developer and Fractional CTO - using React.js, React-Native, Vue.js, Node.js, Next.js, Nest.js, and overall Full stack development in web and mobile. 10+ Years specifically building SaaS projects. SaaS development from MVP to complex high loaded products. 10+ Projects built with high user load in the role of Full stack developer - Delivered robust applications with a 100% job success score. (As an example app called Niya has over 💲 50.000 💲 active users) As a Full stack developer - I’m using in frontend (React, Next.js, React Native Tailwind, shadcn and other style UI libraries, Vercel), backend (Node.js, MongoDB, PostgreSQL) Neon, Render, also deep work with supabase (popular for AI Vibe coding). Also as a Full stack developer I made over 15 apps using React Native CLI and React Native Expo, so I’m open to mobile app developer opportunities. I used to work separately as a web developer only as well. As a Fractional CTO I gained a skill to be more specific on the project stack based on project goals, budget and plans. Performance & Scalability - Being Full stack developer is not only to build and ship it’s also to optimized solutions for speed, SEO, and scalability. I have worked on SEO on domains with high domain authority. Worked a lot with different backend infra providers. Starting some basics, like serverless solutions, finishing AWS services. Agile Collaboration - Transparent communication, iterative workflows, and timely delivery. I used to be on some projects in the role of project manager as well, I know the right way to manage things. I handle the entire development lifecycle, from React Native UI UX design to backend architecture, API integration, cloud deployment, overall a whole full stack delivery.. Hey, I’m Myroslav, a full stack developer and Fractional CTO on steroids with AI usage and large knowledge as a React developer & Senior web developer & IOS developer & Android developer as well. with over 10 years of experience since 2016, specializing in the Full stack development with different technologies React.js, Node.js, Next.js, Nest.js, React-Native CLI, React-Native, Expo, Vue.js, in generally mostly javascript based. I really love mern and mern stack in general, but nowadays I'm using PostgreSQL for most of the projects. My focus as a full stack developer is to deliver a fully functional, and production ready MVP for you within 20-40 days, you don’t need to hire ux designer, I’ll handle everything in house. ). I can even handle your "Replit" or "Base44" or "Lovable" or any other AI/Vibe-coding tools you used to make your project. Making sure that we have a great structure & architecture of the application, and making sure it’s ready to get heavy lifting features later on, and supporting hundreds of thousands requests hourly bases. My Fractional CTO experience will bring a new breath to your project. Industries: In the past I worked a lot with heavy loaded services that requested difficult mapping, maps, routes integration, orders functionality, complex payment integrations. Also worked many times with Health and Wellness, Transport & Geo, Retail, Dating and Lifestyle, Food Delivery, Fintech and Banking, Entertainment and Media, Logistics and Manufacturing, Productivity and Education, Marketplaces and Advertising, Automotive and Travel. Frameworks and staff: as a full stack developer, I used a lot of mern and mern stack. I also have experience working as a react developer or web developer only, and full stack developer django in the past. For the last 4 years I've been actively going deep into LLMs and machine learning which is mostly python based, so I’d say I can call myself a senior python developer as well. Let’s Connect! GET YOUR MVP WITHIN 20 DAYS! Click the “Invite to Job” button, and let’s discuss turning your idea into reality.

Full Stack Developer I AI SaaS Developer | Next.js | React | Supabase | MVP Development I help startups, founders, and SaaS companies launch AI-powered products, SaaS platforms, and modern web applications faster using Full Stack, Next.js, React, Supabase, and AI-assisted development workflows. Over the past several years, I have worked with global clients to build SaaS platforms, startup MVPs, dashboards, customer portals, web applications, Full Stack and AI-powered products that are scalable, user-friendly, and production-ready. My expertise includes: • Full Stack Development • AI SaaS Development • Startup MVP Development • Next.js Development • React Development • SaaS Platform Development • Dashboard Development • Supabase Integration • Claude AI Integration • AI-Powered Web Applications • Modern Frontend Architecture • Landing Pages & SaaS Websites Tech Stack: Next.js • React • TypeScript • Supabase • Node.js • Tailwind CSS • PostgreSQL • Claude AI • Cursor • Vercel • Figma • Full Stack Developer What I can help you build: ✅ AI SaaS Products ✅ Startup MVPs ✅ SaaS Dashboards ✅ Client Portals ✅ Admin Panels ✅ Landing Pages ✅ Web Applications ✅ Internal Business Tools ✅ AI-Powered Workflows ✅Full Stack Developer Why clients work with me: • 4,000+ verified Upwork hours • Top Rated Plus freelancer • 90%+ Job Success Score • Experience working with startups and growing SaaS companies • Focus on clean code, scalability, and business outcomes Whether you need a Full Stack, AI SaaS MVP, a scalable Next.js application, or a modern React-based platform, I can help turn your idea into a production-ready product. Let's build something powerful together. Skills Full Stack Next.js React TypeScript Supabase SaaS Development AI Development MVP Development Web Application Development Front-End Development API Integration Claude AI Cursor AI AI App Development AI SaaS Vercel Node.js Tailwind CSS Landing Page Development Dashboard Development Startup Consulting Angular

I help startups and businesses build SaaS products, automate workflows, integrate third-party systems, and launch scalable software platforms. 🏆 Top Rated Plus • $200K+ Earned • 180+ Projects Completed • 15+ Years Experience What I can help you build: ✅ SaaS Platforms & Multi-Tenant Applications ✅ AI-Powered Features & OpenAI Integrations ✅ CRM, ERP & Business Management Systems ✅ API Integrations & Workflow Automation ✅ Custom Dashboards & Admin Portals ✅ Marketplace & Platform Development ✅ Subscription & Billing Systems ✅ Cloud-Based Web Applications My typical clients hire me when they need more than just a developer—they need someone who can understand business requirements, design scalable architecture, make technical decisions, and deliver production-ready software. Technical Expertise: • React, Next.js, TypeScript, Vue • Laravel, PHP, Node.js, NestJS • PostgreSQL, MySQL, MongoDB • REST APIs, GraphQL, Webhooks • OpenAI, Claude & AI Integrations • AWS, Docker, CI/CD Over the years I've built SaaS products, marketplaces, automation systems, customer portals, reporting dashboards, payment integrations, and enterprise business applications. Whether you're launching a new product, modernizing an existing platform, integrating third-party systems, or scaling a growing SaaS business, I can help turn requirements into reliable software that is secure, scalable, and maintainable. Let's discuss your project and create a solution that supports your business growth. 𝐂𝐨𝐫𝐞 𝐒𝐤𝐢𝐥𝐥𝐬 SaaS Platforms • AI-Powered Applications • API Integrations • Business Automation • CRM & ERP Systems • Custom Web Applications • Marketplace Platforms • Multi-Tenant SaaS • Workflow Automation • React.js • Next.js • Node.js • Laravel • PHP • TypeScript • JavaScript • REST APIs • OpenAI API • AWS • PostgreSQL • MySQL • MongoDB • System Architecture • Cloud Infrastructure • Full Stack Development