Open to opportunities

Danail Apostolov

@danailapostolov

I keep corporate systems, networks, and user access running reliably across Windows and Linux environments.

I'm currently an Information System Administrator at Speedy AD, following more than eight years supporting corporate IT environments in Sofia.

At UBB Interlease, I administered corporate services, resolved hardware, software, and network issues, managed user accounts and permissions, and supported employee onboarding and offboarding. I also maintained hardware and software inventories and collaborated with system administrators and developers on complex issues.

Across Allvotec, Price International Ltd., and INS INFO TRADING, I've provided remote support for UK companies and maintained day-to-day IT operations for client and network devices.

My hands-on work includes Windows and Linux administration, PBX and VoIP systems, VPNs, mail administration, virtualization, PostgreSQL, monitoring, and ticketing platforms including PRTG, Zabbix, Freshdesk, Jira, and GLPI.

Experience

Work history, roles, and key accomplishments

Current

Information System Administrator

Current

Speedy AD

Jan 2026 - Present (8 months)

Administering corporate systems and ensuring their smooth operation.

IT Support Specialist

UBB Interlease

Aug 2022 - Nov 2024 (2 years 3 months)

- Administer the entire spectrum of corporate services, ensuring their smooth operation
- Provide technical support to company employees (hardware, software, and network issues)
- Install, configure, and maintain computers, printers, and other office equipment
- Set up and manage user accounts, access rights, and permissions
- Troubleshoot and resolve common IT problems in a timely manner
- Assist

Windows System Administration Troubleshooting Active Directory Network Administration Microsoft Office

Information Technology System Administrator

Allvotec

Jun 2020 - Jul 2022 (2 years 1 month)

- Remote support for UK companies

Information Technology System Administrator

Price International Ltd

Sep 2019 - Mar 2020 (6 months)

- Configuration and support of PBX phone systems, IP phones, Zoiper softhones, SIP, VoIP, VPN
- Installation, configuration and maintenance of company systems (software and hardware)
- Provides support to IT systems including day-to-day operations, monitoring and problem resolution for client/network devices, etc.
- Configure and support Linux (CentOS, Ubuntu)/Windows (7, 10, 2012) operating syste

IP phones SIP VoIP VPN Linux CentOS Ubuntu Windows Mozilla Thunderbird VMWare PgAdmin PostgreSQL PRTG Freshdesk Jira

Information Technology System Administrator

INS INFO TRADING

May 2017 - Sep 2019 (2 years 4 months)

- Provides support to IT systems including day-to-day operations, monitoring and problem resolution for client/network devices, etc.
- Configure and support Linux (Debian, Ubuntu)/Windows (7, 10, 2012) operating system and install/load operating system software, troubleshoots, maintains integrity and configure network components along with implementing operating system enhancements to improve rel