David Dolic

I am a Senior OSS Development and Operations Specialist with deep experience in FTTH network development, automation, and system reliability. I led large-scale migrations and designed tools that reduced downtime and improved monitoring across networks.

At A1 Croatia I served as technical owner of core systems (Vision, Navision, DHCP, ACS) and led the migration of 70,000 FTTH users from Huawei to ZTE, developing automated CPE transfer processes and comprehensive OLT configuration.

I build Python-based monitoring and AI/ML solutions that pull SNMP data from OLTs to detect service disruptions, and I have hands-on experience with GPON tracers, OTDR, and TR-069/TR-369 device management. I also test CPE devices before deployment and mentor junior engineers.

I focus on cross-functional collaboration, end-to-end process development, and customer-focused improvements that streamline operations and scale across the A1 Group footprint.