Panagiotis Fassaris

Experience

1. Cloud Solutions Architect / Solutions Manager

   OTE Group of Companies (HTO)

   01/2024 – Present 📍 Athens, Greece Current

   • Architected and drove the migration of ~470 VMs across two locations and 60+ physical SAP servers (IBM AIX) to Azure. Transferred 650TB+ of mission-critical data within a 15-month roadmap (two-week variance). Delivered 30%+ performance improvement with enhanced SLAs.
   • Designed detailed Technical Design Documents (TDDs) to support automation teams in deploying infrastructure as intended.
   • Led technical discussions with Microsoft and IT vendor teams, ensuring alignment across stakeholders and smooth project execution.
   • Delivered Azure IaaS, PaaS, and Azure VMware Solution (AVS) options tailored to enterprise business and technical needs.
   • Driving cloud transformation projects for Greek SMBs and the public sector.
2. Senior Systems Engineer

   HS Data LTD

   02/2021 – 01/2024 📍 Nicosia, Cyprus

   • Promoted to Senior position within 24 months for strong performance and impact.
   • Managed cloud transformation engagements across ~20 client environments, delivering ~30 projects spanning Azure IaaS, hybrid cloud, and endpoint management.
   • Delivered Microsoft assessments for data migration and work modernization using Microsoft CAF.
   • Contributed to IaC-driven deployments using Terraform and Bicep across client environments.
   • Implemented Microsoft Hybrid Cloud Infrastructure best practices; configured and managed Sophos Firewalls (SFOS 18.0+).
   • Owned ongoing infrastructure operations and SLA delivery, serving as primary technical escalation point.
3. System Administrator

   iSignthis LTD (ASX: ISX)

   02/2019 – 02/2021 📍 Nicosia, Cyprus

   • Provided IT support with Office 365 and Active Directory administration.
   • Managed macOS endpoints with Jamf MDM for remote provisioning.
   • Hands-on with Palo Alto firewalls, switches, and access points.
   • Gained experience with Amazon AWS, virtual machines, and software deployment.
   • Supported IT security strategies and contributed to internal knowledge base articles.
4. Program Coordinator & Junior Software Developer

   Econtent Store Sarl

   03/2016 – 02/2017 📍 Luxembourg

   • Assisted in developing mobile applications for Android and iOS projects.
   • Supported administrative operations including recruitments, invoicing, and intern onboarding.

Tech Stack