System Administrator
Ref. #
2916
Work type
На място
Place of work
гр. София
Published on:
22 June 2026
Отговорности
- Administer and maintain Windows Server environments
- Monitor system performance, capacity, and availability using Zabbix and other monitoring tools
- Perform regular system updates, patching, and security hardening in accordance with CIS benchmarks
- Implement and maintain security controls aligned with ISO 27001 ISMS requirements
- Manage user access rights and permissions following the principle of least privilege
- Ensure system administrator activities are logged and periodically reviewed
- Support and maintain AWS cloud infrastructure
- Provide technical support across L1–L3 levels, including ticket handling, troubleshooting, and resolving complex incidents
- Perform incident documentation, root cause analysis, and corrective action tracking
- Maintain system documentation, configurations, and operational procedures
- Support compliance audits (GLI, ISO, and other regulatory requirements)
- Follow established change management processes for infrastructure modifications
Изисквания
- Bachelor’s degree in computer science, Information Technology, or a related field
- 3+ years of experience in System Administration or a similar role
- Operating Systems: Linux (Ubuntu), Windows, macOS
- Windows Server Technologies: Active Directory (ADDS), DNS, DHCP, NPS, NFS
- Cloud: AWS (EC2, S3, IAM)
- Networking: TCP/IP, DNS, DHCP, VLANs, Load Balancers
- Monitoring: Zabbix, Netwrix
- Scripting: PowerShell
- ITSM Tools: JIRA, Confluence
- Experience in IT user support roles
Soft Skills:
- Strong analytical and problem-solving skills
- Excellent communication skills in English
- Ability to work independently and as part of a team
- Strong attention to detail
- Ability to work in a fast-paced environment
Professional field
ИТ - Разработка / поддръжка на хардуер