Vladyslav Oliinyk

I’m a Senior Software Engineer with 6+ years of experience in web development, specializing in building modern, scalable, and high-performance web applications using TypeScript, JavaScript, React.js, Next.js, and Python.

🏆What I Do
⚡️Frontend Development — Building modern, responsive web applications with React.js, Next.js, TypeScript, JavaScript, and Tailwind CSS.
⚡️Full-Stack Development — Developing complete web applications across both frontend and backend.
⚡️Backend Development — Building scalable backend services and APIs using Python and TypeScript.
⚡️API Development & Integration — Designing and integrating REST APIs, third-party services, and custom integrations.
⚡️Database Development — Working with SQL and NoSQL databases, including PostgreSQL, MySQL, and MongoDB.
⚡️Testing & Quality — Writing and maintaining automated tests using Playwright and Selenium to ensure application reliability.
⚡️Code Refactoring — Improving existing codebases, reducing technical debt, and modernizing legacy applications.
⚡️Deployment & Development Environment — Working with Docker, Linux, Git, and modern development workflows.

🤲 Why Work With Me?
✓ 6+ years of professional web development experience
✓ Strong expertise in React.js, Next.js, TypeScript, and JavaScript
✓ Full-stack development experience
✓ Clean, scalable, and maintainable code
✓ Responsive and cross-browser web development
✓ Experience integrating complex APIs and third-party services
✓ Experienced with existing and legacy codebases
✓ Strong debugging and problem-solving skills
✓ Experience collaborating with international clients and development teams
✓ Clear communication and reliable delivery

👍 Core Technologies
Frontend: React.js, Next.js, TypeScript, JavaScript, HTML5, CSS3, Tailwind CSS, WordPress, Shopify
Backend: Node.js, Python, REST APIs
Databases: PostgreSQL, MySQL, MongoDB
Development: Responsive Design, API Integration, Web Performance, Component Architecture, Full-Stack Development