Spyridon Kakaroukas Email & Phone Number

Athens, Attiki, Greece

Employer Information:PCCW Global is a leading communications service provider, offering the latest mobility, voice and data solutions to multinational enterprises, telecommunications partners, cloud and application service providers.Position information :• Design of new infrastructure to cater the needs of the company and its customers• Optimization of existing infrastructure• Providing top-level support as well as pre-sales consulting for complex projects.• Inter-departmental consulting on IP-related issues/products.• Product/solutions technical design.Notable Activities :• Design and implementation of various changes to optimize performance, availability and cost for the GRX and DRA services.• Design and implementation of eBGP peerings as well as related policies for multiple peering partners for the GRX and DRA services.• Design and implementation of the network part of complex IoT solutions.• Design and implementation of connections to public cloud providers for multiple projects.• Design and implementation of a highly-available anycast DNS solution for the GRX service.

Athens

Employer Information:Connecticore SA is a Greek ICT provider, offering flexible voice, data and cloud solutions via wired and privately-owned, licensed, wireless infrastructure.Position information : • Setting high-level intra-departmental goals and strategy.• Providing top-level support as well as pre-sales consulting for complex projects.• Inter-departmental consulting on IP-related issues/products.• Product/solutions technical design.Notable Activities :• Re-architecture of the core network into a modern mpls-based design that offers fast convergence, scalability as well as the ability to offer a number of services on top.• Redesign of eBGP policies for customers, peers and upstreams.• Design of MPLS ( L3 ) VPN and IPv6 Internet Access services.• Performed IGP/BGP optimization for faster convergence.• Implemented advanced security measures on edge nodes ( CoPP, iACLs, HW ratelimiters ).• Redesign of the management, voice and IT networks to facilitate better seperation and failure domain isolation.• Implementation of a fiber optics ring for the backbone network.

Employer Information:Narf e-Application Solutions V.O.F. (trading name: Narfhosting) is based in Schiphol-Rijk, Netherlands. The company specializes in premium web hosting, virtual & dedicated servers, SSL certificates, security software, and web services. I am one of the four co-founders of the company, responsible for Sales & Business Development.Position Information:• Operating in a part-time capacity using electronic collaboration tools. Reporting to other company partners.• Serving as technical point of contact for the company's customers in Greece.• Handling all ICT-related requests from company customers.• Collaborating with other company partners for operational, technical, and financial issues according to each partner's specialization.Notable Activities:• Handled the company's DNS cluster setup, and applied redundancy measures in hardware and software level, safeguarding customer and corporate data.• Provided top-level support related to networking or IT equipment / server issues.• Designed and implemented customer-specific usage solutions, in cooperation with Sales dept.

Athens, Greece

Employer Information:Bits and Bytes is a leading Internet & Gaming Stations operator in Greece. The company has over 25 points of presence around Greece, with 15 of them in the Greater Athens / Attica region. Apart from offering internet access & online gaming services to end-user customers, it also provides connectivity and ICT B2B services to franchise stores, handled centrally from the company's headquarters in Athens.The B2B services include provision of connectivity services, workstation/server system management, security audits, software management and automatic updating, et al.Position Information• Reporting to Managing Director.• Providing top-level support for operational and functional issues present in networking equipment of any kind.• Consulting external company clients and advising on optimal networking operation & equipment.• Responsible for corporate networking policies drafting and implementation, ranging from IP address delegation procedures to BGP policies and operational handling.Notable Activities:• Designed, evaluated and implemented several parts of the corporate network aiming to optimize costs and increase networking performance and realibility across the board.• Designed and implemented a system to facilitate mitigation of certain infrastructure threats.• Designed a pilot implementation of IPv6 across the corporate network.

Athens, Greece

Position Information:• Reported to Managing Director.• Performed basic networking and IT administration tasks on a day-to-day basis.• Handled performance metrics and applied solutions to increase perceived networking performance.Notable Activities:• Upgraded the company network and PoPs to higher capacity.• Acquired hands-on experience with Cisco, Allied Telesys, Blue Coat (Packeteer) and Mikrotik networking equipment.• Configured and optimized QoS policies across the network, ensuring uninterrupted performance of critical services.

Athens, Greece

Position Information:• Reported to Network & Technology Coordinator.• Performed basic IT administration tasks on a day-to-day basis.• Performed scheduled and emergency maintenance operations on ICT infrastructure, including server components and security hardware.Notable Activities:• Scheduled, managed and successfully implemented the migration of several corporate systems to newer application platforms.• Provided second-level IT support and guidance for all corporate stores.• Developed and integrated solutions to optimize workstation / server performance, especially regarding software management.

Education record

Computer / Networking Technician