Are you seeking 𝐚 𝐰𝐞𝐛 𝐞𝐱𝐩𝐞𝐫𝐭, 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐩𝐚𝐫𝐭𝐧𝐞𝐫, 𝐨𝐫 𝐛𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐭𝐞𝐜𝐡 𝐜𝐨𝐧𝐬𝐮𝐥𝐭𝐚𝐧𝐭? - With over 10 years of commercial experience in web development, I have the skill set and knowledge to handle all your business needs, from concept to completion! Additionally, as the CEO and co-founder of Devima Solutions, I lead a team of seasoned professionals specializing in developing innovative and profitable applications, regardless of complexity. 𝐖𝐡𝐚𝐭 𝐲𝐨𝐮'𝐥𝐥 𝐠𝐚𝐢𝐧 𝐛𝐲 𝐜𝐡𝐨𝐨𝐬𝐢𝐧𝐠 𝐮𝐬 𝐚𝐬 𝐲𝐨𝐮𝐫 𝐬𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐩𝐚𝐫𝐭𝐧𝐞𝐫 🟩 Tailored Solutions: A personalized approach that ensures your unique needs and goals are prioritized. 🟩 Expert Knowledge: Our team brings a wealth of expertise across various industries, ensuring your project benefits from the best technical insights. 🟩 Effortless Onboarding: We guarantee a quick and seamless start to your project, reducing complexities and maximizing efficiency. 🟩 Ongoing Support: We don’t just build; we partner. You’ll receive dedicated support and further development even after deployment. 🟩 Creative Problem-Solving: We pride ourselves on thinking outside the box, delivering innovative solutions for top-tier results. 𝐎𝐮𝐫 𝐭𝐞𝐜𝐡 𝐬𝐭𝐚𝐜𝐤: 🟩 Front-end Development: TypeScript, React.js, Next.js, Vue.js, Nuxt.js, HTML5/CSS3, Tailwind, Ant design, Material UI. 🟩 Back-end Development: Node.js, Nest.js, Koa, Express.js, Sequelize, TypeORM, PHP, Laravel, Symfony, .net, REST API. 🟩 Database: PostgreSQL, MYSQL, MongoDB, GraphQL, Redis. 🟩 Quality Assurance: Manual functional testing, Test automation. 🟩 DevOps tool: Docker, Nginx, Jenkins, Amazon ECS. 🟩 Cloud services: Amazon Web Services, Google Cloud Platform, Microsoft Azure, DigitalOcean. Stop scrolling through endless profiles - you've just found the right partner! Contact me now to schedule a consultation, and let’s discuss your needs and business goals. 𝐁𝐮𝐳𝐳 𝐰𝐨𝐫𝐝𝐬 Development Services: Product Development, Web Development (Web Application), Website development, Ecommerce Website Development (eCommerce), MVP development (Minimum Viable Product), Application Development, Front-End Development, Back-End Development, Full-Stack Development, MERN Stack Development (MERN), Test-driven Development (TDD), Agile Software Development, SaaS (Software as a Service, SaaS Development), Software Architecture & Design, API integration, API Development (RESTful API, API, RESTful Architecture), RESTful API integration, Integration of Third-party APIs, ChatGPT API Integration, Website Optimization (Performance Optimization), Progressive Web App (PWA), Database Architecture, Database Design, Database Development, System Architecture, Responsive Design, Server deployment. Languages: TypeScript (TS), JavaScript (JS), ECMAScript, PHP, C#, XML (XML Sitemap), JSON, HTML (HTML5), CSS (CSS3). Frontend Frameworks and Libraries: React.js (React, ReactJS), Next.js (Next, NextJS), Redux, Redux-Saga, ReactQuery, MobX, Vue.js (Vue, VueJS, Vue 2, Vue 3, Vuex, Vuetify), Nuxt.js (Nuxt, NuxtJS), Quasar (Quasar Framework), Angular, Ember.js, Tailwind CSS (TailwindCSS), Ant design (ANT), Material UI (MUI, Material-UI, Material Design), Bootstrap (Twitter Bootstrap), CSS Framework, CSS Preprocessors, CSS-in-JS (Styled Components, Emotion), SASS, LESS, CSS Grid (Grid), Flex (Flexbox). Backend Frameworks and Libraries: Node.js (Node, NodeJS), Nest.js (Nest, NestJS, NestJS), Koa, Express.js (ExpressJS, Express), Socket.io, Passport.js, Sequelize, TypeORM, Slim, Yii2, Laravel, Symfony, ASP.Net Core, ASP.Net MVC, ASP.Net SignalR, ASP.Net Web API, ADO.NET, EntityFramework, Dapper, LINQ, GraphQL. Databases: PostgreSQL, MongoDB, MySQL, Firebase, MariaDB, Redis. Testing Frameworks: Jest, Jasmine, Mocha. DevOps, Cloud and Infrastructure: Docker, Nginx, Jenkins, CI/CD integration, Amazon Web Services (AWS), AWS Lambda, AWS Amplify, Amazon EC2, Amazon ECS, Google Cloud Platform (GCP), Microsoft Azure, DigitalOcean, Heroku, Webpack, Bitbucket, Git, GitHub, GitLab, Grunt, gulp, Swagger, Vercel, NPM, YARN. APIs and Integrations: Stripe API, Paypal API, ElasticSearch, Twilio API, OpenAI API, GPT API, GPT-3, GPT-3.5, GPT-4, GPT-4o, OpenAI Codex Prompt, API. Project Management and Collaboration Tools: Agile Project Management, Agile Methodologies (Scrum), Kanban, Jira, Trello, Asana, Slack, Monday.com, Notion, Atlassian Confluence. Design and UI/UX: Figma, FigJam, UX/UI, UX User Experience, UI Design, Mockup, Wireframing, Prototype, UI kit, Mobile-first Design, Team Expansion. Other Skills: Single Page Application (SPA), Server Side Rendering (SSR), Client Side Rendering (CSR), Search Engine Optimization (SEO), Content Management System (CMS, CMS development), ChatGPT, Web3, NFT & Cryptocurrency (NFT), NFT marketplace, NFT art, Payment gateway integration, Data Scraping, CRM Development (CRM), Cross-Browser Compatibility, Quality Assurance (QA).

I’m a highly experienced full stack developer with more than 9 years of expertise in building scalable, high-performance web applications and software solutions. As a full stack developer, I specialize in creating modern, reliable, and user-focused products that help businesses grow and succeed. Throughout my career as a full stack developer, I’ve worked with startups, small businesses, and growing teams to build products from scratch, optimize existing systems, and deliver long-term technical solutions. My experience as a full stack developer includes backend architecture, frontend development, API integrations, cloud deployment, performance optimization, debugging, and feature development. As a full stack developer, I work with a wide range of technologies, including JavaScript, TypeScript, React, Next.js, Node.js, React Native, NestJS, Express.js, Python, PostgreSQL, MySQL, MongoDB, Redis, Docker, Kubernetes, AWS, Firebase, GraphQL, REST APIs, and microservice architectures. Lately as a full stack developer who tries to keep up with trends I also started to work actively with Claude Code. I also have experience with CI/CD pipelines, Linux servers, Git workflows, and modern DevOps practices. Being a full stack developer is more than just writing code for me — it’s about understanding business goals and turning ideas into functional, maintainable, and scalable products. I’m also a technical writer, which allows me to communicate complex technical concepts clearly and effectively with both technical and non-technical clients. As a full stack developer, I’ve had the opportunity to collaborate with several startups, helping them launch MVPs, improve application performance, fix critical issues, and implement new features that enhanced user experience and business efficiency. My background as a full stack developer has taught me how important adaptability, clean architecture, and problem-solving are in modern software development. Communication is one of my strongest skills as a full stack developer. I believe successful projects are built on transparency, responsiveness, and clear collaboration. I always keep clients updated throughout the development process and make sure every requirement is fully understood and properly implemented. Beyond work, I enjoy playing Counter-Strike and PlayStation games, but I also spend a lot of my free time exploring new technologies, frameworks, and programming tools. Staying updated with industry trends helps me grow continuously as a full stack developer and deliver modern solutions to my clients. If you’re looking for a reliable, detail-oriented, and passionate full stack developer who genuinely cares about quality and results, I’d be excited to discuss your project and help bring your ideas to life.

🚀 Senior Full-Stack Developer building modern, scalable web apps 💻 React, Next.js, TypeScript on the frontend ⚙️ Node.js, NestJS, PostgreSQL, MongoDB on the backend 🔌 REST and GraphQL API design, AWS and Docker deployment Hi, I'm Andriy Petrenko, a senior full-stack web developer who builds production-ready web applications, SaaS platforms, and B2B dashboards end to end. I help startups and growing teams ship clean, maintainable products with strong frontend UX and reliable backend architecture. 🛠 Frontend Development React.js, Next.js, TypeScript, JavaScript Redux Toolkit, Zustand, Apollo Client, React Query Material UI, Chakra UI, Tailwind CSS, Bootstrap, SCSS Storybook for component-driven development Responsive, mobile-first interfaces and pixel-perfect Figma to code ⚙️ Backend Development Node.js, NestJS, Express, Fastify TypeScript-first, modular, and testable architecture Custom REST and GraphQL APIs Authentication, authorization, role-based access, and SSO Real-time features with WebSockets and server-sent events Background jobs, queues, and scheduled tasks 🗄 Databases & Data PostgreSQL, MySQL, MongoDB Prisma ORM, TypeORM, Mongoose Database design, migrations, and performance optimization Redis for caching and session storage ☁️ Cloud, DevOps & Tools AWS (S3, EC2, Lambda, Route 53, CloudFront, RDS) Docker, CI/CD pipelines, GitHub Actions Vercel, Netlify, Supabase, Firebase Swagger, Postman for API documentation and testing ✅ Services I Offer Full-cycle web application development from architecture to deployment SaaS platforms, admin panels, and B2B dashboards E-commerce solutions and Shopify integrations MVP development for startups Migration of legacy apps to React, Next.js, and modern stacks API design and integration with third-party services Performance optimization, refactoring, and code audits Long-term ongoing development and feature delivery 🎯 Industries I Work With SaaS, fintech, e-commerce and marketplaces, healthcare and telemedicine, edtech, real estate, logistics, and B2B platforms. 🤝 How I Work Clear technical proposals and architecture decisions up front Iterative delivery with short feedback loops Clean, documented, type-safe code Honest communication about scope, trade-offs, and timelines Available for short bug fixes, MVPs, or long-term ongoing engagements Whether you need a polished frontend, a reliable backend, or a complete full-stack build, I bring your product to life with a focus on performance, scalability, and clean engineering. 💌 Let's work together to bring your project vision to life. Reach out today.

💼 7+ years as a Front End Developer, React Developer, Next.js Developer, Web Developer 🌍 50+ web projects for clients in the US, Canada, Europe & Asia 💰 Generated $1M+ client revenue with high-performance React, Next.js, and Full Stack apps 🚀 Launched 15+ SaaS platforms & 10 HR tech solutions as a senior Front End Developer and Web Developer 📱 Delivered dozens of PWAs with responsive, mobile-first UI/UX design ⭐ 5-star feedback across all projects as a React Developer, Next.js Developer, and Full Stack Web Developer I am a Front End Developer, Web Developer, and Full Stack Developer who builds fast, scalable, and user-friendly interfaces using React.js, Next.js, and modern web technologies. As both a React Developer and Next.js Developer, I combine design precision with clean, optimized code to deliver apps that perform flawlessly across devices. My expertise spans UI design, UX design, front-end architecture, and full stack web development. 🌟 Why Choose Me as Your Front End Developer, React Developer, Next.js Developer, or Full Stack Web Developer? 🔹 Cross-industry experience: e-commerce, fintech, healthcare, SaaS. 🔹 3500+ Upwork hours with a proven track record as a Web Developer. 🔹 UI/UX Modernization. Transforming outdated interfaces into cutting-edge React/Next.js experiences. 🔹 Performance Architecture: As a Next.js Developer and Full Stack Developer, I build scalable front-end systems. 🔹 Pixel-Perfect Development: Turning Figma into fully functional React apps. 🔹 Agile & Collaborative: Experienced in Scrum, CI/CD, and team coordination. 🔹 Tailored Solutions: From dashboards to HRM systems, crafted for your needs as a Web Developer. 📌 Key Achievements as a Front End Developer / React Developer / Next.js Developer / Full Stack Developer / Web Developer 🔸 Built 100+ React.js/Next.js apps, improving user retention. 🔸 Designed responsive UIs with Material UI, Tailwind CSS, Styled Components. 🔸 Delivered 20+ SaaS platforms using Next.js, GraphQL, and Full Stack solutions. 🔸 Integrated 25+ APIs (REST & GraphQL) for automated workflows as a Full Stack Developer. 🔸 Developed 20+ PWAs, boosting mobile engagement by 55%. 🔸 Created real-time dashboards handling 100K+ live updates. 🔸 Improved e-commerce sales funnels by up to 45%. 🔸 Led front-end and web development for 70+ projects with zero missed deadlines. 🛠 Technical Stack as a Front End Developer, React Developer, Next.js Developer, Full Stack Developer, Web Developer ✅ React.js, Next.js, TypeScript, JavaScript (ES6+) ✅ Redux, Zustand, Context API, State management excellence ✅ Material UI, Tailwind CSS, Styled Components, Modern UI/UX styling ✅ REST & GraphQL API integration, Smooth data pipelines for Full Stack Web Development ✅ Node.js, Express, MongoDB, PostgreSQL, Back-end for Full Stack Development ✅ OAuth, JWT – Secure authentication for React/Next.js and Web Apps ✅ Jest, Cypress, React Testing Library, Full front-end testing ✅ Git, GitHub, GitLab, CI/CD, Version control & deployment workflows for Web Developers 🏢 Industries I’ve Worked In ✔ Real Estate: Property platforms built as a React Developer and Web Developer. ✔ Healthcare: HIPAA-compliant apps as a Next.js Developer and Full Stack Developer. ✔ Fintech: Analytics dashboards and trading tools. ✔ E-Commerce: Conversion-optimized storefronts. ✔ SaaS: Core UI/UX for scalable SaaS products. ✔ EdTech: Interactive learning portals. ✔ Media & Streaming: High-traffic React.js front ends. ✔ Travel & Logistics: Booking and tracking interfaces built by a Web Developer. 💡 If you’re searching for a Front End Developer, React Developer, Next.js Developer, Web Developer, or Full Stack Developer who can combine UI design, UX design, and engineering excellence, I’m ready to help you build a high-performance product from the ground up or modernize your existing app for the next level of growth.

• 𝗦𝗲𝗻𝗶𝗼𝗿 𝗙𝘂𝗹𝗹𝘀𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝘄𝗶𝘁𝗵 𝗲𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝗶𝗻 𝗪𝗲𝗯 & 𝗠𝗼𝗯𝗶𝗹𝗲 & 𝗦𝗮𝗮𝗦 • 𝟏𝟒+ 𝘆𝗲𝗮𝗿𝘀 𝗶𝗻 𝘁𝗵𝗲 𝗜𝗧 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁, 𝘄𝗼𝗿𝗸𝗶𝗻𝗴 𝘄𝗶𝘁𝗵 𝗦𝗺𝗮𝗹𝗹, 𝗠𝗶𝗱𝗱𝗹𝗲 & 𝗘𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲 𝗖𝗼𝗺𝗽𝗮𝗻𝗶𝗲𝘀 • 𝗢𝗻-𝗰𝗮𝗹𝗹 𝟐𝟒/𝟕 𝘁𝗼 𝗽𝗿𝗼𝘃𝗶𝗱𝗲 𝗽𝗿𝗼𝗷𝗲𝗰𝘁-𝘀𝗽𝗲𝗰𝗶𝗳𝗶𝗰 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗶𝗻𝗴 𝗮𝗻𝗱 𝗴𝘂𝗶𝗱𝗮𝗻𝗰𝗲. ᴅᴇᴠᴇʟᴏᴘᴍᴇɴᴛ ᴇxᴘᴇʀᴛɪsᴇ ꜰʀᴏɴᴛᴇɴᴅ & ᴡᴇʙ: React.js, Node, JavaScript, TypeScript, HTML, CSS, Bootstrap, Material UI, Tailwind CSS, PHP, Java, Python ᴍᴏʙɪʟᴇ ᴀᴘᴘʟɪᴄᴀᴛɪᴏɴ: cross-platform frameworks - React Native, Flutter; native development - Swift, Kotlin, Objective-C ᴄᴍs: WordPress, Drupal, Magento, Umbraco ᴅᴀᴛᴀʙᴀsᴇs: MySQL, Microsoft SQL Server, PostgreSQL, MongoDB, MariaDB sᴘᴇᴄɪᴀʟɪᴢᴀᴛɪᴏɴ - Healthcare, Wellness, Fitness - Human Resources, Social Media - B2B/Business Management - AI SaaS, FinTech ᴘʀᴏᴄᴇss ᴏꜰ ᴡᴏʀᴋ Consultation 〉 Estimate 〉 Plan 〉 Develop 〉 Test 〉Deploy〉Support Transparency of the process, communication & sync on every step. ᴡʜʏ ᴡᴏʀᴋ ᴡɪᴛʜ ᴍᴇ? - 14+ years in IT leadership, driving innovation and delivering lasting software solutions for enterprise clients. - Founder & CEO of Dexis — hands-on with strategy, delivery, and team growth to ensure client success. - Human-centered approach, blending business analysis, tech expertise, and HR insights for scalable, tailored solutions. 𝗧𝗲𝗹𝗹 𝗺𝗲 𝘄𝗵𝗮𝘁 𝘆𝗼𝘂 𝗻𝗲𝗲𝗱 — 𝗜’𝗹𝗹 𝗵𝗲𝗹𝗽 𝘆𝗼𝘂 𝗯𝘂𝗶𝗹𝗱 𝘁𝗵𝗲 𝘀𝗺𝗮𝗿𝘁𝗲𝘀𝘁 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻. 𝗚𝗲𝘁 𝗶𝗻 𝘁𝗼𝘂𝗰𝗵! ᴋᴇʏᴡᴏʀᴅs Full-Stack Development, Web Development, Solution Architecture, Web Application, Mobile App Development, Microservice, Central Desktop Development, Cross-Device Compatibility, Web Development Consultation, React Native, JavaScript, Node.js, Golang, Mobile App, App Development, IT Compliance Audit, HIPAA, React, Database, Mobile Development Framework, Hybrid App Development, Mobile App Improvement, Mobile App Localization, Android App Development, iOS Development, Mobile App Testing, Web App Localization, Android App, Startup Company, Business with 1000+ Employees, Business with 1-9 Employees, Business with 10-99 Employees, Cross-Device Compatibility, App Feature Development, Innovation Strategy, App Development, Application Integration Software, Application Integration, Application Optimization, Application Audit, Windows App Development, Web Accessibility, Web Application Audit, Enterprise Software Development, IT Compliance Audit Web Analytics Report, Security Engineering, API Documentation, Web Analytics Software, API Blueprint GDPR Compliance Review, PCI, Compliance Testing, API Testing, Web Analytics Bug Fix, API Framework, Back-End Development Framework, NodeJS Framework, Compliance Consultation Innovation Strategy, AI Compliance, Web API, Security Analysis, Data Integration, GDPR, Security Infrastructure, Web App Localization, Web Accessibility, PCI DSS, Security Assessment & Testing Compliance, Security Framework, IT Infrastructure, IT Consultation, Database Integration, Database Administration, Database Development, Back-End Development, REST API, Web Service RESTful API, Infrastructure as Code, API Integration, API, Software Architecture & Design, Database Design, Database Architecture, Database Maintenance,Requirements Specification Database, Data Access Layer, Mobile App Redesign, Mobile App Testing, Mobile App Bug Fix, Mobile App Localization, Mobile App Development Consultation, AI Mobile App Development, Landing Page Front-End Development, Web Application, Responsive Design, Website, Agile Software Development UI Animation, Website Redesign, Page Speed Optimization, Ecommerce Website, Blog, Google Chrome Extension, Cloud Development, Cloud Infrastructure, Cloud Optimization, AWS Solutions, Google Cloud Platform (GCP), Microsoft Azure, Serverless Architecture, Scalability, Cost Efficiency, Cloud Security, DevOps Practices, Infrastructure as Code (IaC), Multi-Cloud Strategy, Cloud Migration, Performance Tuning, Disaster Recovery, Cloud-Native Applications, Kubernetes Management, Load Balancing, Virtualization, Cloud Monitoring and Analytics, Hybrid Cloud Solutions, High Availability Systems, Containerization, Data Backup and Recovery, Compliance and Governance

Hi! I’m a Senior Full-Stack Developer with 10 years of experience in web application development and a strong focus on Shopify since 2023. My background combines deep technical expertise with leadership experience, enabling me to deliver both high-quality code and well-coordinated teamwork. I specialize in end-to-end Shopify development - from building custom and public apps from scratch to ongoing improvements, feature enhancements, and technical support. I also deliver full Shopify website development, including tailored Shopify Plus solutions for scaling businesses. Additionally, I manage Shopify migration projects, ensuring smooth, efficient, and reliable transitions. My expertise covers the entire project lifecycle: ideation, estimation, architecture design, back-end and front-end development, deployment, and continuous post-production support. I also work on code optimization and performance improvements, ensuring fast, stable, and scalable Shopify stores. Alongside technical delivery, I lead and coordinate development teams, align processes with business goals, and apply modern tools to optimize workflows and improve efficiency. My competence areas include: 📌 Development, enhancement, and support of Shopify applications. 📌 Full website development and long-term maintenance. 📌 End-to-end Shopify migration with efficient implementation. 📌 Performance optimization and fast, reliable websites. 📌 Project analysis and improvements implementation. 📌 Modern development process optimization. 📌 Team management and leadership. Technical Proficiencies: ✔ Languages: JavaScript, TypeScript, Shopify Liquid, Node.js, PHP (Laravel), GraphQL. ✔ User Interface: Shopify Polaris (React і Web Components), React.js, Vue.js, Next.js, Bootstrap, HTML5, CSS3, SASS/SCSS, Less, Ant Design, Material UI, Emotion, Styled Components, Tailwind CSS, PWA (Progressive Web Apps). ✔ CMS: Shopify/Shopify Plus, WooCommerce, Wix, WordPress. ✔ Tech Audit: Lighthouse, Google PageSpeed. ✔ Version control system: GitHub, GitLab. ✔ Database / Caching: PostgreSQL, Redis. ✔ Shopify-specific: API & App Bridge, App Home/UI Extensions alignment. Let’s build scalable, high-performance Shopify solutions together! Shopify Custom App | Shopify Public App | Shopify Plus | Shopify Website Development | Website Speed Optimization | GraphQL | Rest API | PHP | Laravel | Shopify | React.js | Vue.js | JavaScript | Shopify Website | Set Up Shopify Site | API Development | HTML5 | Liquid | CSS | Node.js | Shopify Apps | Shopify Migration | Page Speed Optimization | Shopify Templates | Shopify Development | Full-Stack Development

𝐓𝐨𝐩 𝟏% 𝐀𝐈 & 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 𝟏𝟎+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧-𝐠𝐫𝐚𝐝𝐞 𝐀𝐈 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐚𝐧𝐝 𝐡𝐢𝐠𝐡-𝐭𝐫𝐚𝐟𝐟𝐢𝐜 𝐰𝐞𝐛 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 𝐰𝐢𝐭𝐡 𝐦𝐨𝐫𝐞 𝐭𝐡𝐚𝐧 𝟓 𝐦𝐢𝐥𝐥𝐢𝐨𝐧 𝐮𝐬𝐞𝐫𝐬 𝐂𝐓𝐎 𝐚𝐧𝐝 𝐓𝐞𝐚𝐦 𝐋𝐞𝐚𝐝 Delivered AI-powered and web products with systems processing 𝐭𝐡𝐨𝐮𝐬𝐚𝐧𝐝𝐬 of daily interactions and supporting 𝟏𝟎𝟎𝐊+ 𝐦𝐨𝐧𝐭𝐡𝐥𝐲 𝐮𝐬𝐞𝐫𝐬. Worked on AI agents, LLM integrations and full-stack platforms generating measurable business outcomes such as automation of workflows, conversion optimization, and operational cost reduction 50-70%. 𝐀𝐈 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: Deep focus on modern AI systems: - AI Agents, Multi-Agent Systems, Agentic AI (LangChain, LangGraph, CrewAI, AutoGen, OpenAI Agents SDK) - RAG Pipelines, Retrieval-Augmented Generation, Knowledge Systems - LLM Integration: OpenAI (GPT-4 / GPT-5), Claude, Gemini, Mistral, LLaMA, DeepSeek - AI SaaS Platforms, AI Dashboards, AI Analytics, AI Personalization Engines - Conversational AI, Chatbots, AI Assistants, Customer Support Automation - Voice AI Systems: Whisper, ElevenLabs, STT/TTS pipelines, real-time agents - AI API Integration: OpenAI API, Claude API, Hugging Face, Groq, Bedrock, Azure OpenAI - Computer Vision: Stable Diffusion, image generation, inpainting, upscaling, segmentation - AI orchestration frameworks: LangGraph, Flowise, Dify, Semantic Kernel 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: Strong production experience in scalable full-stack architecture: Frontend: - React, Next.js, TypeScript, Tailwind CSS, Redux, Material UI, Remix Backend: - Node.js, Express.js, NestJS, REST APIs, GraphQL, microservices architecture - Python, Django, Fast API Databases: - PostgreSQL, MongoDB, Firebase, Supabase Infrastructure & DevOps: - AWS, Azure, Google Cloud, DigitalOcean, Docker, Kubernetes, CI/CD pipelines Mobile: - React Native, Expo CMS / Internal Tools: - Strapi, Storyblok, Retool, headless CMS systems No-code / Low-code / Vibe Coding: - Bubble, Webflow, Bolt, v0.dev, Lovable, Replit, Cursor AI, Windsurf Have an AI or full-stack project in mind? Send me a message and I’ll help you design and build a scalable, production-ready solution. AI/LLM Keywords AI agents, agentic AI, LLM engineering, GPT-4, GPT-5, Claude, Gemini, LLaMA, DeepSeek, RAG, retrieval augmented generation, embeddings, semantic search, AI SaaS, AI automation, AI workflow, AI chatbot, conversational AI, AI assistant, AI API integration, OpenAI API, Claude API, AI personalization, AI recommendation system, AI analytics, AI dashboard, AI scoring, AI forecasting, multimodal AI, computer vision, Stable Diffusion, image generation, text-to-image, voice AI, speech-to-text, text-to-speech, AI pipelines, function calling, tool calling, AI orchestration Full Stack Keywords React, Next.js, TypeScript, Node.js, NestJS, Express.js, MongoDB, PostgreSQL, Firebase, Supabase, Tailwind CSS, Redux, REST API, GraphQL, microservices, AWS, Azure, Google Cloud, Docker, Kubernetes, CI/CD, SaaS development, scalable backend, system architecture, CMS, CRM, API integration, e-commerce development, full stack engineer, backend engineer, frontend engineer

15 years building production systems. Led teams. Shipped products. Made clients millions in revenue. I don't do "simple websites" or "quick fixes" - I architect scalable SaaS platforms that handle real traffic and make real money. WHAT I BUILD: • SaaS platforms (React/Node.js/Next.js) • Enterprise web applications with complex architecture • API integrations and microservices (NestJS, GraphQL) • Mobile apps (React Native) WHY CLIENTS WORK WITH ME: ✓ 15 years of production experience - I've seen every edge case ✓ $100K+ earned on Upwork with 100% Job Success Score ✓ 4,200+ hours delivered - I show up and ship on time ✓ Clear communicator - daily updates, no surprises RECENT WINS: → Built real-time analytics SaaS processing 2M events/day. Client raised $1.5M seed. → Led migration to microservices architecture (reduced costs 40%) → Architected SaaS MVP that raised $1.5M seed funding I specialize in: AI, JavaScript, TypeScript, React, Redux, Next.js, React Native, Vue.js, Node.js, NestJS, ExpressJS, MySQL, PostgreSQL, MongoDB, Amazon Web Services, GraphQL, Firebase. I can build large and complex systems by myself and I have plenty of those to show as my project examples. Need someone who can architect, code, and ship? DM me and let's talk about your project.

⚡𝗥𝘂𝗯𝘆 𝗼𝗻 𝗥𝗮𝗶𝗹𝘀 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝗮𝗻𝗱 𝗥𝗲𝗮𝗰𝘁 𝗡𝗼𝗱𝗲.𝗷𝘀 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 · 𝟭𝟬𝟬% 𝗝𝗦𝗦 · 𝟴+ 𝘆𝗿𝘀 · 🛡️𝗟𝗶𝗳𝗲𝘁𝗶𝗺𝗲 𝗰𝗼𝗱𝗲 𝘄𝗮𝗿𝗿𝗮𝗻𝘁𝘆. Clients come to me when the product has real complexity - payment flows, multi-role systems, third-party integrations, data-heavy architectures that hold up for years. ✅ 𝗖𝗹𝗶𝗰𝗸 𝗛𝗶𝗿𝗲 𝗼𝗿 𝗜𝗻𝘃𝗶𝘁𝗲 to work with a Node.js Full-Stack Developer who owns the architecture, not just the tickets. 🎯 𝗪𝗛𝗔𝗧 𝗬𝗢𝗨 𝗚𝗘𝗧 ✔️ As a Node.js Full-Stack Developer - full ownership from architecture to deployment. React, Node.js, TypeScript, PostgreSQL, Redis, REST API, Docker, AWS. Clean, documented code. ✔️ As a Full-Stack Web Development React Node specialist - end-to-end SaaS platforms, payment integrations (Stripe, Xero), multi-role admin panels, Elasticsearch reporting. 40-60% faster delivery than split-role teams. ✔️ As a Ruby on Rails Developer - Rails 4-7.1 codebases, monolith upgrades, RSpec-covered backends, Sidekiq async. 8+ years, 15+ production systems shipped. ✔️ As a Node.js Full-Stack and Ruby on Rails Developer React engineer - Next.js, React, TypeScript paired with Node.js or Rails. Full-Stack Web Development React Node delivery across FinTech, EdTech, B2B SaaS. 🔥 𝗦𝗢𝗠𝗘 𝗣𝗥𝗢𝗝𝗘𝗖𝗧𝗦 ✔️ Greek Capital (USA) - accounting + CRM SaaS, Elasticsearch reporting, automated workflows. Ruby on Rails Developer · Full-Stack Web Development React Node. Ongoing since 2017 ($100-250k). ✔️ Roi (Norway) - finance PWA: Stripe, asset tracking, investment calculator. React Node.js Full-Stack · Ruby on Rails Developer React · TypeScript. ✔️ MilkMind (France) - high-load EdTech marketplace, AI integration, video, Stripe. Node.js Full-Stack Developer · Ruby on Rails Developer React · Next.js. ✔️ Sket (Belgium) - LegalTech SaaS: contract automation, blockchain. Ruby on Rails Developer · React Node.js Full-Stack · RSpec. ✔️ H&P Builder (USA) - EHR product, multi-level admin. Full-Stack Web Development React Node · Node.js Full-Stack Developer. 🚀 𝗪𝗛𝗘𝗥𝗘 𝗜 𝗗𝗘𝗟𝗜𝗩𝗘𝗥 ✔️ FinTech SaaS - as a Node.js Full-Stack Developer and Ruby on Rails Developer: payment integrations, credit management, accounting platforms. US, UK, Nordics. 8+ years, zero payment flow failures. ✔️ EdTech & marketplaces - Full-Stack Web Development React Node and React Node.js Full-Stack: high-load architecture, AI integration, video delivery, subscription logic. 30-50% better scalability. ✔️ LegalTech & compliance - Ruby on Rails Developer React and React Node.js Full-Stack: blockchain, document automation, audit-trail data flows for EU-market compliance SaaS. ✔️ HealthTech & EHR - Node.js Full-Stack Developer and Full-Stack Web Development React Node: secure document generation, recommendation logic, HIPAA-aware. ✔️ B2B SaaS - Ruby on Rails Developer, Node.js Full-Stack Developer, Full-Stack Web Development React Node: permission layers, file management, long-term codebase ownership. 🏆 𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗬 𝗩𝗘𝗥𝗧𝗜𝗖𝗔𝗟𝗦 ✔️ FinTech - Node.js Full-Stack Developer and Ruby on Rails Developer: Stripe, Xero, credit SaaS. Zero payment errors across 8 years. ✔️ EdTech - Full-Stack Web Development React Node and React Node.js Full-Stack: AI-powered, high-load marketplace platforms. ✔️ LegalTech - Ruby on Rails Developer and Ruby on Rails Developer React: smart contracts, document automation, blockchain. ✔️ HealthTech - React Node.js Full-Stack and Full-Stack Web Development React Node: EHR, secure data, recommendation logic. ✔️ B2B SaaS - Node.js Full-Stack Developer: Ruby on Rails Developer React architecture, full ownership. ⚒️ 𝗛𝗢𝗪 𝗜 𝗕𝗨𝗜𝗟𝗗 ✔️ Core - Node.js Full-Stack Developer and Ruby on Rails Developer: Node.js, ExpressJS, Ruby on Rails (4-7.1), JavaScript, TypeScript, React, Next.js, Vue.js, PostgreSQL, Redis, Docker, AWS, REST API, RSpec. ✔️ Frontend - Full-Stack Web Development React Node: React, TypeScript, HTML, HTML5, CSS, CSS 3, Bootstrap, Tailwind CSS, jQuery, Web Design, Mobile App Development. ✔️ Backend - React Node.js Full-Stack builds: ExpressJS, MongoDB, MySQL, SQL, PHP, Laravel, CodeIgniter, Python, API Integration, API, Database Architecture, Software Architecture & Design, Agile Software Development. ✔️ Ecosystem: React Native, Angular, AngularJS, WordPress, WooCommerce, Shopify, iOS Development, Android App Development, Git, Software Development, Software Debugging, Product Development, Search Engine Optimization. ✔️ Creative & extended: Graphic Design, Adobe Photoshop, Adobe Illustrator, Web Application, Software Design, Desktop Application, Data Entry, Ruby, RSpec, PostgreSQL. 🔹 Node.js Full-Stack Developer · Full-Stack Web Development React Node · React Node.js Full-Stack · Ruby on Rails Developer - lifetime warranty on every line of code. 🔹 Ruby on Rails Developer React · UTC+2 · async-friendly Building a product? 👉 Message and let me support your way on a risk-free way..

🔵 Experienced full stack web developer & AI Automation expert If you’re looking for a Full stack web developer who understands SaaS products as a Saas developer and sees the entire system, or a react developer who values real user experience — you're in the right place. I'm a full stack web developer expert with 7+ years of experience helping startups and scaling companies build reliable, data-driven systems. As an AI developer, I combine strong product thinking with hands-on expertise in AI auomation, designing scalable solutions that streamline operations, reduce costs, and support growth. I work closely with founders and teams to turn business needs into production-ready platforms. My background spans SaaS development, Machine Learning, and full-stack engineering with JavaScript (React, Node.js) and Python as a python full stack developer. As a web developer, I design systems around real workflows - integrating APIs, automating processes, and embedding AI where it delivers measurable impact. 🚀 What I do as a Saas developer and Full stack web developer: - SaaS platform architecture and system design, including AI Saas development ( I also work with Saas designer ) - custom backend logic and API development - AI automation systems using n8n, Make (Integromat), Zapier - AI agents, RAG systems, and workflow orchestration (OpenAI, LangChain) - full-stack development: scalable apps, APIs, dashboards, and integrations - data pipelines: scraping → enrichment → automation - CRM, marketing, and internal tools automation including AI lead generation and social media marketing automation 🐾 Tech stack: Front-end: React, Vue, Angular, Next.js, Nuxt.js, TypeScript, Redux — as a front end developer and full stack developer react Back-end: Node.js, Nest.js, PHP (full stack laravel), .NET / C#, Java (Spring, Hibernate, RabbitMQ), GraphQL, REST APIs Databases: PostgreSQL, MySQL, MS SQL, MongoDB, Redis, Elasticsearch AI: Python, LangChain, GPT-4o, Llama-3, Claude, DALLE 2, Whisper, Stable Diffusion, Figma Make — with experience as a full stack developer ai Headless CMS (Storyblok, Payload, Prismic, Strapi) and customization as a wordpress developer with focus on web design 📈 Proven impact - 23+ AI automation projects delivered and 46+ full stack developer projects delivered across SaaS developer, fintech, healthcare, AI and marketing - reduced lead response time by 93% with AI agents - cut operational workload by 38%+ through automation systems - migrated and optimized 20+ workflows to improve reliability and transparency As a full stack web developer, I bridge backend, frontend, and infrastructure to deliver complete, maintainable systems. As a web developer, I focus on usability and performance. With a mindset of a software developer and Saas developer, I ensure clean architecture and scalability, while supporting growth through saas marketing. If you need someone who combines AI automation + full stack development to build systems that actually save time and drive growth - let’s talk.