Denys Ruban
Senior Full Stack Developer building end-to-end web applications, scalable APIs, and AI-driven business solutions.
Full Stack developer
who ships complete
solutions.
Senior Full Stack Developer with extensive experience building end-to-end web applications, scalable APIs, and complete business software solutions. I design and deliver products across the entire stack — from React and Next.js frontends to Python and Node.js backends.
Experienced in integrating AI-driven features that streamline business processes, improve operational efficiency, and support data-driven decision-making. Whether it's a client-facing interface or a complex automation pipeline — I focus on solutions that are reliable, scalable, and built to last.
Lead frontend development using modern frameworks (React, Next.js) integrated with well-structured, maintainable server-side logic. Design and implement machine learning and optimization tools for business-oriented applications. Build scalable Python-based systems for data processing, automation, and intelligent software functionality. Create practical AI solutions that help businesses improve efficiency, reduce manual work, and optimize operational processes.
Delivered lectures and led code labs for undergraduate and graduate students. Taught foundational mathematics courses covering linear algebra, calculus, and discrete mathematics. Conducted hands-on programming labs in AI, data science, and machine learning — guiding students through model implementation, data pipelines, and applied problem solving.
Worked on server-side logic, API integration, and database-related functionality. Built and maintained rich, interactive user interfaces using modern JavaScript frameworks. Collaborated cross-functionally with design, product, and backend teams to ship stable, high-quality full stack features on schedule.
E-commerce storefront for a premium Canadian butcher shop. Custom Shopify theme with product collections, an editorial aesthetic, and a streamlined checkout experience.
Corporate website for SMK Group, a multi-brand food manufacturing holding. Showcases the company's trade brands with multilingual support and a clean product-focused layout.