Roman Naumenko

About

I'm Roman Naumenko, a full-stack software engineer with 15 years of professional experience in web development. I hold a specialist degree in Mathematics and Computer Science from Far Eastern Federal University (Vladivostok, 2013) and studied computer science at the University of Idaho (USA, 2010).

My career spans building complex systems — from governmental investment portals and cinema ticketing platforms with 150+ connected devices, to international SaaS products. I led a web development agency for 6 years, managing teams of 3–5 developers on projects that included custom CMS platforms, interactive mapping systems, and API integrations for regional government services. Currently, I work as a backend developer for MacroActive (New Zealand), where I introduced Domain-Driven Design practices and led the architectural transformation of their core product.

I also teach PHP, Symfony, Laravel, and software design patterns at OTUS online university — which means I not only build software, but regularly explain technical concepts in clear, structured terms.

I created Calculating.app because I was tired of reaching for the same everyday calculators — days between dates, temperature conversions, unit lookups — and finding only slow, ad-heavy pages that gave a bare number with no context. This project applies my mathematical background directly: every formula is verified against international standards (SI, ISO 8601, NIST) before publication, and each calculation shows the complete step-by-step derivation so you can verify the result yourself.

Education

Roman graduated from Far Eastern Federal University (Vladivostok) with a specialist degree in Mathematics and Computer Science in 2013. He also studied Computer Science at the University of Idaho (USA) through an academic exchange program in 2010, gaining international perspective on software engineering education.

Areas of Expertise