What does reliability truly mean when building critical payment infrastructure for the world’s largest banks? In regulated and mission-critical industries like fintech, reliability is not just about technology. It is shaped by culture, collaboration, and everyday ways of working. Organisations powering platforms for multi-billion-dollar enterprises quickly learn that reliability depends on how people work across functions, make decisions under pressure, and learn from failure in highly constrained environments.

This talk goes beyond uptime and SLAs to explore the human and collaborative foundations of reliability. We will examine what practices help prevent incidents before they occur and how teams respond effectively when issues arise. Communication, and the way teams communicate, plays a central role in shaping operational reliability and decision-making in complex, regulated environments. Drawing on real-world experience running critical fintech infrastructure, the session shares practical insights to design culture and ways of working, helping organisations maintain reliability and resilience without slowing innovation.

Maryna Rybalko is a Product and Technology Leader with over seven years of experience in FinTech and HRTech, building B2B and B2B2C solutions for major financial institutions and global platforms. Formerly Platform Engineering Lead at Jooble, she has managed teams of 70+ specialists and published thought leadership on Platform Engineering and Software Development, reaching audiences of 175K–4M monthly. Maryna has spoken at major industry events and was recognised with the 2025 Women in Tech Excellence Award for “Team Leader of the Year – Finance.”