Nikos Vitzilaios

Senior ICT professional with over 25 years of experience in enterprise operations, solution delivery, and infrastructure projects within high-availability environments (Banking, ICT Integrators, R&D). Holds an MBA and an MSc in Advanced Computer Networks, combining deep technical understanding with strategic business acumen. Proven track record in managing vendor relationships, coordinating complex technology integrations, and ensuring operational stability and SLA compliance.

Focused on driving efficiency, optimizing ICT operations, and supporting digital transformation initiatives.

Senior Telecommunications Engineer - Piraeus Direct Services SA (On-site at Piraeus Bank Group) - Greece

(2011-03)

• Manage end-to-end telecom infrastructure and cloud collaboration services (MS Teams, Cisco VoIP, SBCs) for enterprise banking environments, ensuring 99.9%+ availability and continuous SLA compliance.
• Coordinate with external technology providers, telecom carriers, and hardware vendors for service delivery, contract execution, and technical escalation resolution.
• Lead technical implementation, maintenance, and system upgrades across a nationwide retail branch network and corporate headquarters, optimizing performance and operational resilience.
• Direct high-tier technical troubleshooting, infrastructure optimization, and integration of enterprise voice/unified communications platforms.

Technical Project Manager - ATE BANK (Agricultural Bank of Greece) - Greece

(2007-03 - 2011-07)

• Managed the technical aspects of VoIP and Unified Communications (UC) rollouts across the bank's IT division.
• Coordinated with hardware and software vendors to support daily network operations and ensure service availability.

Voice Solutions Consultant | Presales Engineer - Space Hellas SA - Greece

(2005-07 - 2007-02)

• Provided presales engineering support for advanced voice and data communications solutions, contributing to technical design, proposals, and client presentations.
• Partnered with the sales division to translate customer requirements into tailored technical architectures and deliver winning RFP/RFQ responses.
• Supported the technical division during solution implementation, ensuring design feasibility and smooth transition from proposal to delivery.
• Acted as consultant for enterprise clients, positioning VoIP and next-generation telephony solutions as part of broader ICT transformation projects.

Product & Project Software Engineer - Siemens DI&P Software Center - Greece | Germany | USA

(2003-12 - 2005-06)

• Conducted software quality testing and validation for next-generation VoIP telecom platforms, ensuring compliance with performance and reliability standards.
• Performed system integration and international field trials with R&D teams in Munich (Germany) and Boca Raton (USA).
• Contributed to product regression testing cycles, improving stability and enabling successful global releases.

Technical Project Manager - Space Hellas SA - Greece

(2001-03 - 2003-11)

• Managed telecom projects for banking networks, delivering secure and resilient data/voice solutions.
• Oversaw multi-vendor contracts and implementations, on-time and within budget.
• Acted as technical account manager, aligning technology solutions with business requirements.

Network Engineer | Project Coordinator - Intracom SA - Greece

(1998-06 - 2001-02)

• Supported contracts and implementation of major data and backbone networks.
• Contributed to Network Management Systems (NMS) integration projects, improving monitoring and operational efficiency.
• Liaised with clients to ensure timely delivery and compliance with project requirements.

MBA - Université de Lausanne (UNIL/IUKB)

MSc - Advanced Computer Networks - University of Derby

Bachelor - Electronic Engineering - Technological Educational Institute of Athens