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Ivan Makarov

VOIP ENGINEER, TECHNICAL SUPPORT SPECIALIST
Kyiv, Ukraine
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linkedin.com/in/ivan-makarov-20342720a
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imakarov.ian@gmail.com
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+380995220742
VoIP Engineer with over 4 years of hands-on experience in managing telephony systems, server infrastructure, and end-user support. Specialized in high-load call center environments (100K+ daily calls), VoIP (Asterisk), Linux administration, and networking (Mikrotik). Strong problem-solving skills and a proactive approach to system optimization.
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Work Experience

REDI

VoIP engineer
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Apr 2024 - Current
  • Administered telephony systems for high-load call centers (100K+ daily calls) across multiple countries
  • Implemented call routing strategies and optimized key telephony KPIs(ASR, ACD, Call Success Rate ect.)
  • Experience with VoIPTime (GUI tool for managing Asterisk-based systems)
  • Negotiated with telecom providers regarding service quality and pricing
  • Managing tasks in ClickUp

CallWay Ukraine

VoIP engineer, Technical Support Specialist
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Sep 2021 - Mar 2024
  • Maintained Windows and Linux servers
  • Asterisk server setup
  • Experience with server virtualization (Proxmox)
  • Configuring IP/GSM gateway
  • Configuring L2TP VPN on Mikrotik
  • Maintenance of WiFi, LAN networks
  • Configured web services and installed SSL certificates
  • Set up Confluence spaces
  • Solving non-standard issues related to users of the mass segment
  • Diagnostics of technical problems and their elimination
  • Provided IT support to internal users

Belcom

System administrator
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Oct 2020 - Aug 2021
  • Configuring switches(like D-Link, FoxGate, Edge-Core)
  • Configuring monitoring of servers and services based on Zabbix software
  • Administration of the Bitrix24 portal

Education

National Aviation University

Bachelor, Telecommunication systems and networks
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Sep 2017 - Jun 2021

National Aviation University

Master, Telecommunication systems and networks
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Sep 2021 - Dec 2022

Languages

English
Upper-Intermediate
Ukrainian
Proficient
Russian
Proficient

Skills

  • OS Linux
  • VoIP, Asterisk
  • Mikrotik
  • Zabbix
  • VoIP Time
  • Confluence
  • Jira
  • Experience with server virtualization
  • Diagnosis of technical problems
  • Problem-Solving
  • Computer Literacy