Web Software Engineer from Lviv, Ukraine
Hi, I’m Oleh - a Senior Frontend Developer with 9+ years of experience building scalable, high-quality web applications for enterprise and mid-sized businesses.I’ve worked on complex production...
Hi, I’m Oleh - a Senior Frontend Developer with 9+ years of experience building scalable, high-quality web applications for enterprise and mid-sized businesses.
I’ve worked on complex production systems for companies like Adidas (EPAM), Corel, Ladbrokes, Quantivis, Jostens and others. Most of my work is under NDA, but it includes large-scale platforms with high load, multi-frontend architecture, admin/super-admin systems, and e-commerce solutions.
Over the years, I’ve taken on not just a developer role, but also a technical lead role — driving frontend architecture, reviewing solutions, mentoring developers, and helping teams deliver stable and maintainable products.
My core strengths:
• Building scalable frontend architecture (Angular, React)
• Creating reusable, clean, and maintainable components
• Performance optimization and risk-aware development
• Strong understanding of business needs behind technical decisions
• Solid experience with Node.js, Java (Spring Boot), PostgreSQL, and backend workflows
• Experience building Telegram bots and Web3 applications (Solana ecosystem)
• Leading UI teams, mentoring developers, and conducting code reviews
My primary expertise is Angular, where I’ve worked on large, complex systems for many years. At the same time, I have strong hands-on experience with React, Node.js, and Java (Spring Boot), contributing to both frontend and backend parts — including API integration, database design, and migrations.
I also have experience building Telegram bots and integrating them with Web3 applications on Solana, including real-time interactions and automation logic.
I’m proactive in planning solutions, thinking ahead to avoid future risks, and I genuinely care about the product and business goals - not just the code.
I also actively use modern AI tools (like Codex and Claude) to improve development speed, code quality, and architectural thinking.
What clients usually appreciate most about working with me is reliability, clear communication, and a strong sense of ownership.
If you’re looking for someone who can not only write code but also think, lead, and help your product grow - let’s talk.