Product Architect Project Manager Mobile Developer Backend Developer SaaS

Serhii Kolodynskyi

Head of App Development

Co-founder of Sadok.app. Developer, project manager, and product architect across mobile and SaaS products. I work at a CTO level in telecom and software products.

15+Years in IT

1M+WiFi Heatmap downloads

5M+Wi-Fi AR downloads

10+Years of tech leadership

About the specialist

How I work

IT professional with 15+ years of experience in product development, telecom infrastructure, mobile applications, and SaaS platforms. I combine hands-on development, product architecture, and project management.

Co-founder of Sadok.app, a digital platform for preschools and after-school centers. I led development and scaling of the product: a CRM and communication platform for preschools.

I’ve also contributed to commercially successful mobile products: WiFi Heatmap (1M+ downloads) and Wi-Fi AR (5M+ downloads).

Co-founder of Sadok.app. Developer, project manager and product architect for mobile and SaaS products. CTO-level technical leadership in telecom and software.

Skills and certificates

Stack and expertise

Product managementProject coordinationTechnical architectureTeam & process leadershipCrisis managementMobile developmentSaaS platforms

Education and growth

Education and conferences

Master's degree, Information Technologies

State University of Telecommunications, Kyiv

Growing your business is our job

Comprehensive promotion, website development and strategic marketing.