n0hup@relay:~$ finger d4emon
D4EMON
RLY-06 · Senior Systems Engineer, Hybrid Windows/Linux, RELAY
D4EMON runs mixed Windows and Linux estates at government scale: up to 300+ servers and 25,000+ workstations. He covers the full stack from SAN hardware and firmware through VMware vSAN and Hyper-V to directory, PKI and monitoring, and is RELAY’s lead for Linux hardening.
- Experience
- 18 years in IT, since 2008
- Focus
- Windows and Linux servers, VMware vSAN and Hyper-V, SAN hardware, PKI, monitoring
- Leads
- Infrastructure Health Check, Unix/Linux Hardening, Implementation
Core competencies
- Operating systems: Windows Server 2003 R2–2022; CentOS 7–8, Oracle Linux 8–9, Ubuntu.
- Virtualization: VMware including vSAN, Microsoft Hyper-V, Citrix VDI and thin clients.
- Hardware: servers, storage systems and optical SAN switches; installation, component replacement, firmware, third-line vendor cases.
- Directory and services: AD, DNS, DHCP, Group Policy, certificate authority, KMS, NTP, VPN, IIS and Nginx.
- Data and messaging: SQL Server, PostgreSQL, Exchange 2010–2016.
- Monitoring and security: Zabbix with Grafana, Cacti; pfSense, Squid and gateway/antispam; Kaspersky infrastructure on 40+ servers; Veeam backup.
Selected experience
| Period | Role | Context | Highlights |
|---|---|---|---|
| 2025 – present | Senior Systems Engineer (hybrid on site / remote) | Upstream oil field operator, Middle East | Support of corporate IT infrastructure |
| 2024 – present | Systems Administrator | IT outsourcer; client a national government agency with 100+ servers and 7,000+ workstations | Server and SAN hardware, VMware vSAN and Hyper-V, Windows and Linux, core directory services, monitoring, antivirus platform, Veeam; conferencing upgrade to Skype for Business |
| 2018 – 2024 | Systems Administrator | IT outsourcer; client a national ministry with 300+ servers and 25,000+ workstations | Hardware, virtualization, Windows and Linux, PKI and VPN, Citrix VDI, RocketChat and Jitsi rollout; member of the expert group planning the client’s full infrastructure upgrade (domain, antivirus, backup, virtualization) |
| 2016 – 2018 | Outsourcing Specialist | Corporate university of a national holding | Managed building-systems contractors (access control, cabling, conference rooms); budgets; solution selection |
| 2008 – 2016 | Lead Systems Administrator | Trading company with 18+ subsidiaries | Windows Server 2003–2012 R2, mail, SQL Server, backup and antivirus; remote access; VoIP; LAN modernization across subsidiaries |
| 2008 | Systems Administrator | Retail companies | Windows Server, LAN, retail systems; supermarket IT launched from scratch |
Certifications
| Certification | Year |
|---|---|
| MCSE: Core Infrastructure | 2021 |
| MCSA: Windows Server 2016 | 2021 |
| Cisco CCNA Routing and Switching | 2019, valid to 2023 |
| CompTIA A+ | 2019, valid to 2022 |
| Huawei Certified Field Specialist: Server | valid to 2021 |
Education
Information Systems in Business — Kokshetau University named after A. Myrzakhmetov, 2003.