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I am a .net expert with 20+ years of experience in different domains regarding windows applications, web development, cloud based applications, web services, architectural designs, database design. I always aim to make stable solutions with the quality that is needed to make clients satisfied with the result. Also, I have experience in team-lead and functional and technical design and analysis. The last projects, I had the position of solution architect. I speak Dutch, English (fluent) and French.

= Contact me if you want = 💻 Websites and web apps 🖼 Front-end solutions in React, Next, Solid and Vue 🤖 AI integration and solutions 🧩 Chrome extensions 🔗 Full-stack, database and API integrations 🧠 Information Technology, Design and Management package 💻 Website & Web App Development 📱 I am a professional in front-end HTML, CSS, JavaScript (incl. frameworks React, Next, Solid and Vue), back-end Node.js, Express, REST, npm, and Databases Postgres, Google Cloud/Firestore, SQL/NoSQL. These are only a few technologies of my wider tech-stack but the ones that I use most often in my projects. 📗 Chrome Extension Development 📘 I have worked on extensions for AdBright, AskOli, Bored Panda, HubSpot, Katana.tools for OpenSea, Sapium, coupon and shopping assistants, social media stats and insights collectors, extensions for websites and web tools (e.g. Amazon, Instagram, LinkedIn, Spotify, YouTube, Google Sheets, Google Forms, Eat This Much, G2A), product testing and offers website helpers, online store automators (e.g. Shopify and Asian drop shipping stores), virtual workers website helpers (for Humanatic) and many extensions for automating games, e.g. QuizUp, Neopets, DragCave, DelugeRPG, Pokemon Voyage. I have also developed multiple suites of tools for internal use of my clients' companies which included API development, integration and design as well as workflow automation and support. 😎 A bit more about me 🧐 I am an experienced full-stack developer and I specialize in Chrome extension and web app design, development and integration. I have university degrees in Information Technology, Design and Management as well as years of practice and involvement in a variety of web industries. If you have a project in mind that needs web based solutions, do not hesitate to drop me a message so we can dive deeper into your requirements.

I have shipped production software on a trading platform serving 490,000 active clients and processing 123 million trades annually. I have built over 200 real estate websites on a platform operating across 140 countries. I have taken a startup MVP from zero to acquisition. I hold an MSc in Software Engineering. This is what 8 years of serious engineering experience looks like. My stack covers the full depth of modern web development. I do not just write code. I architect systems, own deployments, and think about the product from a business angle. I also help manage FalAgency, a growth engineering agency, which means every system I build is evaluated against real performance and business outcomes, not just technical requirements. 💥What working with me actually means for your project: 💥 You get a developer whose code has been tested at real scale, not in side projects. You get full ownership across frontend, backend, APIs, and deployment with no handholding required. You get production-ready AI integration where necessary covering NLP pipelines, LLM connections, and FastAPI microservices. You get direct communication, realistic timelines, and no surprises mid-project. You get a product-minded engineer who thinks about growth and outcomes, not just delivering features. 💥Quick proof of my work from real production environments:💥 Beyond my full portfolio, here is a quick look at a few high-scale production environments I have shaped: Tickmill (fintech) - Frontend engineer on a live trading platform with 490,000 active clients and 123 million trades processed annually. Stack: React.js, TypeScript, Ant Design, CSS3, SCSS, Bulma, TypeScript. Entegral - Built over 200 production real estate sites on a platform serving 18,000 agencies across 140 countries. Stack: HTML5, SCSS, CSS, React.js, Node.js, BEM Methodology, modern UI frameworks. Carrus - Built the full product MVP on an Upwork contract. The company was later acquired by Exponent. Stack: Vue.js, Vuetify, Firebase, Cypress, TypeScript Riraen AI - Architected and built the entire platform from scratch, including the landing page, frontend application, backend APIs, and a Python FastAPI microservice for NLP-based keyword intelligence. Stack: React.js, Node.js, FastAPI, spaCy FalAgency - Built the full company web presence and growth infrastructure from the ground up. Stack: Framer, Framer Template Technologies: ✅ Front-end development: UI presentation view: HTML/HTML5, CSS/CSS3, SCSS, JavaScript, TypeScript. UI design frameworks: AntDesign, Bootstrap 3, Bootstrap 4, DevExtreme, Tailwind CSS, Bulma. UI front-end frameworks: Reactjs, Next.js, VueJs 2 & VueJs 3. State Management: React Query, Redux, Redux-thunk, Pinia, Vuex. Back-End integration: Axios, RxJS, Fetch API. CMS: WordPress, Shopify. Testing: Mocha, Jest, ReactJs testing libraries, Cypress. Other: Formik, Framer Motion. ✅ Back-End Development: Technologies: JavaScript, Typescript, NodeJs with Express, Stripe integration. NoSQL Database: MongoDB, Firebase or Firestore ORM: Prisma ✅ Python (FastAPI) Microservices: I build lightweight and scalable microservices using Python + FastAPI for AI and data processing tasks. I work with the spaCy NLP ecosystem, NumPy, and external API integrations to handle text analysis, enrichment, and automation workflows. I follow clean architecture principles with strong typing (Pydantic), proper testing (pytest), and strict code quality standards (Black, Flake8, mypy) to ensure reliable, production-ready services. 💥 UI & UX design: 💥 ✅ I can also assist in building and architecting simple UI design prototypes and wireframes using Adobe XD and Figma. ✅ I collaborate effectively with UI designers by providing constructive feedback and ensuring the design aligns with development goals and user experience best practices. 📞 Let’s Talk: 💬 Top Rated Plus on Upwork. 100% Job Success Score. 19 completed engagements. 4,000 hours tracked. If you are building something serious, let us talk.

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 🏆 Technical partner who cares as about code quality as about business needs 🏆 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% ✔️ Marketplaces, E-commerce and fintech platforms that 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 with charts that 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.

Looking for a developer who can take your idea and turn it into a working product efficiently? I am a Senior Full Stack Engineer with over 10 years of experience. I specialize in building scalable SaaS platforms, complex automation tools, and AI-powered applications. Why clients choose me: Full Cycle Development: I handle everything- Architecture, Backend (Python), Frontend (Vue/React), and Deployment. You don't need to hire multiple developers to launch a product. Business Mindset: I treat your project as my own business. I focus on performance, scalability, and cost-efficiency. Autonomous: I prefer deep work. Give me a complex problem, and I will return with a working solution. My Expertise: SaaS Development: Building robust web apps using Django/FastAPI and modern JS frameworks. Data & Automation: Complex web scraping, API integrations, and processing pipelines. AI & ML Integration: I don't just use AI APIs. I can handle data preparation, labeling, and training custom models for your specific needs. Tech Stack: Backend: Python (FastAPI, Django), Node.js. Frontend: React, Vue.js, TypeScript. Infrastructure: Docker, Kubernetes, AWS/DigitalOcean. Let's discuss how I can help you build your next product.

Looking for a professional web developer to transform your ideas into a digital reality? 🙋🏽‍♂️ I specialize in crafting stunning, high-performance websites and web applications using the latest PHP, WordPress, MERN stack and Laravel technologies. From converting design mockups into responsive, user-friendly websites to building robust APIs and optimizing code for speed and efficiency, I've got you covered. Let's create something amazing together! Why should you hire me? 🙄 🎖 Commitment: I am highly committed to my work, consistently dedicating myself to tasks and projects until they are completed to the highest standards. 👌 Quality: I am dedicated to producing high-quality work. I pay close attention to detail, ensuring accuracy and precision in every aspect of my tasks. 📣 Effective Communication: I am an effective communicator, able to articulate ideas clearly and concisely, both verbally and in writing. I am also a skilled listener, actively seeking to understand the needs and perspectives of others. 🧐 Attention to Detail: I have a keen eye for detail, allowing me to identify and address potential issues before they become problems. I am meticulous in my work, striving for perfection in every task. 🎊 Your satisfaction is my top priority. What are my technical skills? ✔Full-Stack Web Development ✔Specialized in PHP, Laravel, TALL Stack (Tailwind CSS, Alpine.js, Laravel, and Livewire) ✔Custom WordPress Development ✔MERN Stack development (MongoDB, Express.js, React, and Node.js) ✔CI/CD pipeline, Git ✔SQL and NoSQL databases Your Vision, My Expertise. Ready to transform your idea into a reality? Let's build a stunning, secure, and user-friendly website. Contact me today! 🤝