Personal details
Hayk S.
About
I'm a senior full-stack developer with over 7 years of experience delivering scalable, high-performance web applications for startups and global companies. My career has taken me through a range of industries—from healthtech and fintech to gaming and e-commerce—where I've helped teams turn complex ideas into elegant, efficient digital products.
My technical strengths lie in React, Next.js, TypeScript, Node.js, and Python, with deep expertise in building intuitive frontends, robust APIs, and cloud-native backends. I’m also experienced in blockchain integrations, smart contract interactions, and NFT payment systems. Whether it’s creating custom UI components, optimizing PostgreSQL queries, or developing serverless functions on AWS, I bring a versatile, detail-oriented mindset to every project.
Beyond client work, I’ve contributed to internal tooling and performance tuning initiatives that significantly improved app load times and maintainability. I’m passionate about clean architecture, DX (developer experience), and building interfaces that feel as good as they look.
I value collaboration, transparency, and continuous learning. My mission is simple: build meaningful software that solves real problems, scales beautifully, and creates great user experiences.
Work Experience
- Led the development of full-stack web applications for global clients across fintech, gaming, and healthtech domains, delivering production-ready features under tight deadlines
- Built responsive and scalable frontends using React, Next.js, and TypeScript, ensuring design consistency and high performance across devices
- Developed backend services with Node.js and Python, integrating with PostgreSQL databases and external APIs
- Integrated blockchain wallets (MetaMask, WalletConnect) and NFT payments, ensuring secure and seamless user interactions with smart contracts
- Implemented reusable UI components and improved state management using React Hooks, Redux, and Context API, reducing development time for future features
- Collaborated with UI/UX designers to translate complex interactions into elegant user experiences with smooth transitions and animations
- Regularly conducted performance audits and applied optimizations such as lazy loading, code splitting, and database indexing
Tech stack: React, Next.js, Node.js, Python, TypeScript, PostgreSQL, Web3.js, Ethers.js, REST APIs, Git
- Delivered end-to-end solutions for international clients by developing scalable, full-stack applications using Next.js, TypeScript, Node.js, and PostgreSQL, with a focus on performance, modularity, and maintainability
- Built responsive frontends with advanced animations, state management, and reusable component systems, while also handling complex backend tasks such as API architecture, database schema design, and server-side rendering
- Integrated third-party services and payment gateways, collaborated closely with cross-functional remote teams in Agile environments, and deployed solutions to cloud platforms (GCP, Vercel) using CI/CD pipelines
Tech Stack: Next.js, React, TypeScript, Node.js, PostgreSQL, REST APIs, GitHub Actions, GCP, Vercel, Docker, Redux, Tailwind CSS