Illia Tsvielov

👋 𝐇𝐢, 𝐈’𝐦 𝐚 𝐒𝐞𝐧𝐢𝐨𝐫 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 (𝟕+ 𝐘𝐞𝐚𝐫𝐬)

Specializing in building high-performance, scalable, and beautifully crafted web & mobile applications.

I combine strong technical expertise with a product-focused mindset to deliver modern, reliable, and user-centric digital experiences. Whether you're launching a new product, scaling an existing system, or integrating advanced AI capabilities — I help turn ideas into efficient, production-ready solutions.

⭐ 𝐂𝐨𝐫𝐞 𝐒𝐤𝐢𝐥𝐥𝐬 & 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞

💻 Frontend Development

－JavaScript, TypeScript, React.js, Next.js, Vue.js, Nuxt.js

－Tailwind CSS, Shadcn UI, Framer Motion

－React Native, Flutter (cross-platform mobile development)

－Pixel-perfect, responsive UI with performance at scale

⚙️ Backend & API Development

－Node.js, Express.js

－Python, FastAPI, Django

－REST, GraphQL, gRPC, WebSockets

－PostgreSQL, Supabase (schema design, optimization, performance tuning)

☁️ Cloud, Deployment & DevOps

－Vercel, Netlify, Heroku, AWS Amplify

－Scalable architectures and CI/CD-friendly deployments

💳 Payment & Communication Integrations

－Stripe (subscriptions, invoicing, secure payments)

－Twilio (SMS, voice, real-time communication)

🤖 AI & Automation

－OpenAI API, Chatbots, RAG, Agent Workflows

－Speech-to-Text (Whisper), Text-to-Speech, embeddings

－Automation tools: Zapier, Make.com, n8n

－AI-powered development (Bolt.new, v0.dev, lovable.dev, fine.dev)

🚀 𝐖𝐡𝐚𝐭 𝐈 𝐃𝐞𝐥𝐢𝐯𝐞𝐫

✔️ Modern, Responsive Web Apps

Fast, clean, and intuitive interfaces optimized for all devices.

✔️ High-Performance Architecture

Efficient, scalable backend systems that can grow with your product.

✔️ Clean, Maintainable Code

Industry-standard best practices, modular architecture, and long-term maintainability.

✔️ Smooth Collaboration

Transparent communication, proactive problem-solving, and alignment with your business goals.

🎯 Why Clients Choose Me

－Senior-level experience backed by 7+ years in production environments

－Strong product mindset — I don’t just code; I help you build the right solution

－Timely delivery with consistent communication and milestone clarity

－Passion for innovation — always up-to-date with the latest frameworks and AI advancements

🤝 Let’s Build Something Exceptional

If you’re looking for a highly skilled full-stack developer who can deliver polished, efficient, and scalable solutions — I’d love to collaborate.

Send me a message and let’s bring your project to life. 🚀