Alex Nazarov
Grevenmacher
Summary
15 years' experience with the largest Internet Service Provider (ISP) in Ukraine (total20+ years experience). Project manager for NGN implementation: FTTB/VoIP/IPTV technology in the north region of Ukraine. Huge experience in networks, operating systems, and services.
KNOWLEDGE:
- Knowledge and administration of the following operating systems: FreeBSD, Windows, Windows Server, MacOS.
- Knowledge and configuration of the following UNIX software/services: BIND, Apache, FTPD, POP3, IMAPD, ipfw, natd, Squid, VPN, IPSec, PPTP, DHCP, etc.
- Knowledge and configuration of the following Windows software/services: Active Directory DC, DHCP, DNS, VEEAM, etc.
- Protocols TCP/IP, UDP, PPP, VLAN, ISDN, WLAN.
- Configuration and administration of switches and routers: CISCO, Huawei, Linksys.
- Studying Microsoft Azure Cloud Computing Services
Overview
26
26
years of professional experience
1
1
Certification
Work History
Head of IT Support
International School of Luxembourg
12.2022 - Current
- Managed a team of IT professionals, providing mentorship and guidance to boost productivity and ensure project success.
- Coordinated IT service requests within the Helpdesk to ensure high-quality support for staff and students.
- Negotiated contracts with vendors, securing cost-effective services for the organization''s IT needs.
- Monitored and ensured fulfillment of agreed service levels, balancing support efforts among team members.
- Established IT policies and procedures, fostering a secure and efficient work environment for all employees.
- Maintained, supported, and repaired all technical equipment, including desktops, laptops, printers, projectors, TVs, A/V equipment, and other peripherals.
- Installed and deployed new equipment, performed hardware/software upgrades, and assisted teammates as needed.
- Managed the procurement process for IT hardware and software, ensuring timely delivery of necessary equipment to support ongoing projects.
- Oversaw budget management for the IT department, allocating resources effectively while minimizing costs where possible.
- Conducted regular audits of hardware inventory to ensure proper asset management across the organization's technology infrastructure.
- Configured and maintained Jira to support IT operations and improve ticket management.
- Implemented and managed Azure cloud infrastructure to enhance IT support operations.
System/Network Administrator
Self-Employed (Private entrepreneur)
01.2014 - 01.2022
- Servicing19 companies, such as Eaton Electric Gmbh, Husqvarna Group, AHI-Carrier Fzc, travel agency, publishing companies, transport company, etc
- Configuring and maintaining the networked computer system, including hardware, system software, and applications
- Diagnosing and resolving hardware, software, networking and system issues
- Researching and recommending new approaches to improve the networked computer system
- Ensure security through access controls, backups and firewalls
- Providing technical support when requested
System/Network Engineer
VEGA Telecommunications Group
01.2008 - 01.2014
- NGN Project Manager: FTTB / VoIP / IPTV
- Equipment selection, testing and preparation for implementation into the existing network
- Writing technical documentation, technical requirements, manuals
- Second-line technical support and assistance with NGN Services
- System/Network Engineer:
- Specialist in designing, configuring and development corporate networks
- Remote administration of servers (FreeBSD/Windows), DSLAMs, L2 and L3 routers and switches
- Responsible for providing third/second-line technical support and assistance with corporate ticketing system
- Responsible for monitoring and troubleshooting an IT environment's hardware, software and networks
System/Network Administrator
VEGA Telecommunications Group
01.2000 - 01.2008
- Maintenance of the company infrastructure (crossing/mounting patchpanels), maintenance of points-of-presence
- Designing and laying networks
- Configuring and administrating router's (Cisco), switches (Cisco, Alcatel, Lyncsys), DSLAM's (ZyXEL IES-1000-2000-3000, ZyXEL Prestige1600, Corecess, etc.), modems (Comtrend/Dynamix (ADSL/SHDSL/VDSL), ZyXEL Prestige100/128L/782R, Tainet DT-128, Cronyx Sigma22c, etc.) under the condition of a specific subscriber line
- Responsible for configuring and administrating over50 FreeBSD servers as a router and firewall for connecting clients to the internet and accounting their traffic
- Responsible for providing second-line technical support and assistance
IT Helpdesk Support
VEGA Telecommunications Group
01.1999 - 01.2000
- Responsible for providing first-line technical support and assistance for Dial-Up customers via phone, e-mail, in person
- Offering technical assistance on the delivery, configuration, set up, maintenance, and troubleshooting of computer systems, hardware and software
- Training other staff on troubleshooting and diagnosing problems
- Configuring modems and PCs
- Writing and editing training manuals
- Reporting and analysis of common complaints and concerns
- Maintenance of the office infrastructure
- Hardware and software installation, configuration, troubleshooting
- Responsible for monitoring critical infrastructure hardware and services
Education
Master of Science - Computers Networks and Telecommunication
National Technical University of Ukraine "Kyiv Polytechnic Institute"
Kiev01.2002
Skills
- Computer Proficiency
- Task Management
- Responsibility
- Problem Solving Skills
- Network administration
- IT infrastructure management
- IT asset/service management
- Project management
- Hardware troubleshooting
- Analytical thinking
- Organizational skills
- User support
- Data analytics
- Infrastructure planning
- Task prioritization
- Information security
Certification
- NSE 1 to NSE 3 Network Security Associate | Fortinet | April2023
- AZURE AZ-900 Fundamentals | Udemy | August2022
- RIPE NCC Training Courses | RIPE NCC | April2012
- RIPE NCC Training Courses | RIPE NCC | April2011
- Cisco Certified Network Associate Industrial (CCNA I) | April2008
- Building Cisco Multilayer Switched Networks (BCMSN v3.0) | October2008
- Cisco Certified Entry Networking Technician (CCENT) | October2007
LANGUAGES
English
Advanced
C1
Ukrainian
Proficient
C2
Russian
Proficient
C2
Luxembourgish
Elementary
A2
Hobbies
Table Tennis, Travel, Numismatics, Soccer
Timeline
Head of IT Support
International School of Luxembourg
12.2022 - Current
System/Network Administrator
Self-Employed (Private entrepreneur)
01.2014 - 01.2022
System/Network Engineer
VEGA Telecommunications Group
01.2008 - 01.2014
System/Network Administrator
VEGA Telecommunications Group
01.2000 - 01.2008
IT Helpdesk Support
VEGA Telecommunications Group
01.1999 - 01.2000
- NSE 1 to NSE 3 Network Security Associate | Fortinet | April2023
- AZURE AZ-900 Fundamentals | Udemy | August2022
- RIPE NCC Training Courses | RIPE NCC | April2012
- RIPE NCC Training Courses | RIPE NCC | April2011
- Cisco Certified Network Associate Industrial (CCNA I) | April2008
- Building Cisco Multilayer Switched Networks (BCMSN v3.0) | October2008
- Cisco Certified Entry Networking Technician (CCENT) | October2007
Master of Science - Computers Networks and Telecommunication
National Technical University of Ukraine "Kyiv Polytechnic Institute"
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