Founder - Alter Code Group. Experienced Full Stack developer with 5 years of experience in development using React, Node.js, Mobile Developing (React Native/Expo). I strive to create high-quality web applications and have deep knowledge of front-end and back-end. Ready to solve complex problems and constantly improve skills in the field of web development. Based in Bulgaria and ready for new challenges in the field of Full Stack development

Hello! My name is Dmitry. I’m a Senior Software Engineer with 8+ years of experience in web and mobile application development. Originally from Ukraine, I’m now based in Bulgaria, helping businesses worldwide build fast, responsive, and profitable products. My core approach is simple: ✅ Understand your vision and requirements in depth. ✅ Propose the best technical solutions. ✅ Deliver a reliable, high-quality product that meets your business goals. Key Highlights: 🔥 Experience with telemedicine platforms, booking applications, marketplaces, and high-load systems. 🔥 Skilled in both front-end (Vue, React, Angular) and back-end (Node.js, Java) development. 🔥 Strong background in Agile (Scrum, Kanban) and solid understanding of full project lifecycles. 🔥 Successfully collaborated on government contracts and large-scale commercial projects. Main Tech Stack & Skills: 🚀 Front-End: JavaScript (ES6+), Vue.js (2/3), React, Ionic 🚀 Back-End: Node.js, Java (Spring Boot), RESTful APIs, WebSockets 🚀 Dev Tools: Git, Bitbucket, CI/CD, Docker, Jest, Cypress, Vite, Webpack 🚀 UI Libraries: Vuetify, Material UI, Bootstrap, Ant Design, PrimeVue, Element UI 🚀 Databases: MySQL, MongoDB 🚀 Other: GraphQL, Socket.io Need to empower your business? I’m ready to dive into your project, align with your vision, and build something exceptional! Just contact me!

Currently I am running Web Bamboo LTD. I am a full-stack developer with years of experience in Symfony, WordPress and VueJS projects.

I'm a full-stack developer specializing in modern web applications and AI automation solutions. Whether you need a responsive web app, workflow automation, or AI-powered tools for your business, I can help bring your ideas to life. Proficient in React.js, Node.js, TypeScript, Python, and PostgreSQL Experienced with AI/LLM integration, RAG systems, and prompt engineering End-to-end delivery with CI/CD, Docker, and Firebase deployment Clear communication throughout—I keep you in the loop at every stage.

Overview: I help Amazon sellers and agencies automate workflows, build custom dashboards, and integrate the SP-API (Amazon's new Selling Partner API). ✅ Daily order reports to Google Sheets ✅ Auto-update prices & inventory from spreadsheets ✅ Bulk listing tools and FBA integrations ✅ Amazon Ads dashboards & review tracking I use Node.js, AWS Lambda, Google Sheets API, Shopify API, and more. My clients save time, reduce manual work, and scale operations smoothly. Let’s discuss your Amazon use case — I’ll suggest the best solution, and I’m fast to deliver. What I Do: Clean, Responsive Web Design: Crafting visually appealing, mobile-friendly websites with clean code and intuitive UX. Robust Back-End Development: Building scalable, secure systems that power your online presence. AI Integration: Implementing GPT-based chatbots and automation tools to modernize your digital solutions. Why Work With Me: I believe in clear communication, timely delivery, and a client-first approach. I work closely with you from project conception to launch, ensuring every solution is tailored to meet your goals. Let’s collaborate to turn your digital vision into reality.

Hello, I’m Martin, a Front-End Developer and WordPress Expert with 10+ years of experience and the founder of Nitramix Ltd. I build fast, scalable, and reliable SaaS products, web applications, and WordPress solutions that help businesses grow. Tech stack: JavaScript, React, Next.js, PHP, WordPress, WooCommerce, HTML, CSS, API integrations What I do best: • Front-End development for SaaS and web apps • WordPress and WooCommerce development • Custom WordPress plugins and features • API integrations and system connections • Performance optimization and technical SEO • Bug fixing and maintenance I treat every project like a product, focusing on UX, performance, security, and long-term value. I don’t just write code - I provide solutions that make your business more efficient and scalable. Why work with me: • 10+ years of hands-on experience • Real SaaS and product experience, including my own WordPress plugin • Founder of Nitramix Ltd • Clear communication and reliable delivery • Focus on quality and long-term results Contact me today to start building your SaaS, WordPress, or WooCommerce solution with clean, reliable code and strategic thinking.

Key Expertise: ⚛️ React, Next.js, Cypress, Express, Mongoose, Supabase, Postgresql 🖥️ JavaScript, TypeScript, and OOP 🎮 Pixi.js, GSAP, Spine 2D Esoteric, iGaming 🎨 CSS, Tailwind, Daisy UI, MUI, Radix-ui 🎯 Pixel-perfect implementation from Figma designs Problem Solving: I implement Figma designs with pixel-perfect precision using the technology of your choice. With extensive experience in almost all front-end frameworks, I can quickly switch between them, most commonly working with React or Next.js combined with Redux for global state management. I use Mongoose with Express to manage and manipulate data in your application. I’m proficient in all aspects of slot game development, including spin mechanics and features such as sticky tiles, expanding wilds, wheels of fortune, global multipliers, and more. Fields: 🎰 Slot Game Development: Both canvas and UI to trigger game actions 🌐 Website Development 🛒 E-commerce Communication: ✅ Proficient in Jira for efficient task and bug management 💬 Experienced with Slack and Discord for seamless communication Additional Information: 📍 Based in Sofia, Bulgaria (GMT+3), ensuring timely communication with clients across various time zones ⚡ Energetic, committed, and always eager to learn and adapt to technological advancements 🏆 Three years of professional experience in a dynamic field with small teams 🚀 Quickly adapt to your existing codebase

Senior Full-Stack Engineer with 15+ years of experience building production web applications, scalable platforms and backend-heavy systems. My work spans full-stack development, API-driven systems, legacy modernization, asynchronous workflows and end-to-end product delivery. Most recently, I’ve been working on high-load, production-critical systems in the gaming industry, including KYC and regulatory platforms, while also architecting a modern marketplace platform using TypeScript, Node.js/Nest.js and React. I’m particularly focused on backend engineering, scalable architectures, maintainable codebases and long-term product development. Strong ownership mindset, clear communication and reliable delivery.

👋 Hi there! I’m a software developer with over 13 years of professional experience building, fixing, and improving web applications for clients around the world. Successfully completed my first Upwork project with 5★ feedback, delivering fast and clear communication. I specialize in developing clean, reliable, and maintainable code, with a strong focus on performance and scalability. Whether you need a quick bug fix, a custom API integration, or help with backend logic or frontend functionality, I deliver fast, high-quality results. What I can help you with: Debugging and optimizing existing applications Building REST APIs and backend services Frontend development (responsive layouts, UI improvements) API integrations and automations Code review, refactoring, and performance tuning Why clients choose me: 13+ years of hands-on programming experience Clear and proactive communication Fast turnaround and attention to detail Focus on long-term maintainability, not just quick fixes I enjoy working on short-term, well-defined tasks that make an immediate impact. Let’s collaborate to make your project faster, cleaner, and more efficient 🚀

Why work with me I’m a front-end developer passionate about building clean, intuitive, and performant user interfaces — while also integrating automation and AI to make web tools smarter and more efficient. Over the past three years, I’ve helped clients create modern, responsive front-end applications that connect seamlessly with automation backends, streamlining workflows and turning complex processes into simple, user-friendly experiences. I specialize in JavaScript (React) and modern front-end practices — from component-driven architecture and state management to design systems and API integration. I also use Python and C# for building automation layers and AI integrations behind the scenes. My projects often involve using AI to extract and structure data (from images or documents) and then presenting it in interactive web dashboards or tools that make data accessible and actionable. I write clean, maintainable code, value strong UI/UX design principles, and focus on making every product both functional and enjoyable to use. What I offer Modern front-end development with React and Tailwind / Material UI AI- and automation-integrated web tools that connect visual interfaces with smart backends Pixel-perfect, responsive design optimized for performance and usability Custom dashboards and admin panels that turn complex data into clear insights Scalable, maintainable architecture ready for future growth Collaborative, detail-oriented workflow with clear communication and ongoing support If you’re looking for someone who can blend front-end expertise with automation and AI capabilities to deliver polished, intelligent web applications — I’d love to help bring your project to life.