Nemanja Jeremić

Nemanja Jeremić

Team Leader – Hosting Department | Orion Telekom

Hosting · Linux Administration · Automation · PHP Development

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Interests

  • Infrastructure optimization and performance tuning
  • Automation and scripting in Bash and PHP
  • Scalable hosting architectures
  • Strategy and simulation gaming

Professional Strengths

  • Strong problem-solving in production environments
  • Ownership of complex infrastructure issues
  • Focus on stability, automation, and efficiency
  • Ability to perform effectively under pressure and during incidents

Education

Medical High School in Zvezdara

2009 – 2013

Field of study: Laboratory Technician

Professional Profile

Team Leader with more than 10 years of experience in hosting and system administration. Focused on building, maintaining, and optimizing scalable hosting infrastructure, automating operational processes, and resolving complex production issues. Experience includes Linux environments, PHP development, and hands-on work with platforms and tools such as Proxmox, cPanel/WHM, LiteSpeed, Apache, Redis, and Varnish.

Technical Skills

Linux Administration
(Ubuntu, AlmaLinux, CloudLinux)

Virtualization
(Proxmox, VMware ESXi / vSphere)

Hosting Platforms
(cPanel/WHM, Apache, LiteSpeed)

Databases
(MySQL, MariaDB, PostgreSQL)

Programming and Scripting
(PHP, Bash)

DNS and Network Services
(Bind, PowerDNS, DNSSEC)

Caching and Performance
(Redis, Varnish)

Monitoring
(Nagios)

Version Control
(Git)

Work Experience

System Administrator / Team Leader – Hosting Department

Orion Telekom · Full-time

Dec 2021 – Present · Belgrade, Serbia · Hybrid

  • Leading the hosting team and planning infrastructure and operational activities.
  • Administering and maintaining hosting environments, virtual servers, and hypervisor infrastructure.
  • Delivering migration and automation projects to reduce manual work and improve operational efficiency.
  • Resolving complex production issues and providing high-level technical support.
  • Designing and implementing stable and scalable hosting solutions.
  • Technologies: Bind, PowerDNS, WHM/cPanel, Proxmox, Proxmox Backup Server, MySQL, Apache, Ubuntu, AlmaLinux, Nagios, Exim.
Developer – Software Distribution & Endpoint Security

NCR Corporation · Full-time

Oct 2019 – Dec 2021 · 2 yrs 3 mos · Belgrade, Serbia

  • Worked on software distribution and package testing for ATM devices within the Global Software Distribution & Endpoint Security team.
  • Handled Microsoft Security updates, APTRA Edge upgrades, and deployment processes for client environments.
  • Supported environments covering around 30 banks in the United States and approximately 1,500 endpoints.
  • Performed log analysis, issue identification, and troubleshooting in distributed systems.
  • Technologies: Batch, PowerShell, C# .NET, MS SQL, SCCM/GCSM, CA/EPM, AXEDA, GASPER, GEMS/GMSS, Microsoft SharePoint.