Senior System Administrator
New
J
JobgetherIT Infrastructure
Based in BrazilFull-TimeSenior
Salary not disclosed
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Job Details
- Languages
- Fluent Russian and intermediate or higher English proficiency (B1+)
- Experience
- Minimum of 5 years
- Required Skills
- CitrixLinuxGoogle Workspace
Requirements
- Bachelor’s degree in Computer Science, Information Technology, or a related field.
- Minimum of 5 years of experience administering Microsoft and VDI infrastructure.
- Hands-on experience with Active Directory domain or forest migrations.
- Strong expertise in Active Directory services, including domains, forests, trusts, replication, FSMO roles, DFS, GPO, Kerberos/NTLM, auditing, and domain controller deployment.
- Experience managing DNS services, PKI environments, certificate lifecycle management, and TLS implementation.
- Experience with VDI and remote access platforms such as Citrix.
- Knowledge of Windows Server administration, upgrades, patch management, file services, and backup/recovery processes.
- Experience with Linux environments (Ubuntu, AlmaLinux, CentOS, or RHEL).
- Familiarity with load balancing technologies including nginx, HAProxy, NLB, keepalived, and VRRP.
- Experience with virtualization platforms such as VMware ESXi and Hyper-V.
- Knowledge of Google Workspace administration, cloud environments, SSO/OAuth integrations, and GCP projects.
- Experience with PowerShell automation.
- Fluent Russian and intermediate or higher English proficiency (B1+).
Responsibilities
- Administer and maintain Microsoft infrastructure, including Active Directory, DNS, DHCP, Certificate Authority, PKI, and Group Policy.
- Manage access platforms and enterprise services, including collaboration tools, application environments, monitoring, backup systems, and cloud services.
- Support and maintain VDI and terminal server environments, ensuring system performance, patching, documentation, and reliability.
- Resolve incidents and service requests within agreed service levels while participating in operational support activities.
- Contribute to infrastructure modernization projects, including domain migrations, VDI platform transitions, server upgrades, and legacy system decommissioning.
- Design implementation plans, create test environments, and execute pilots for infrastructure changes.
- Maintain accurate infrastructure documentation, inventories, and operational procedures.
- Participate in on-call rotations to ensure continuous availability of critical systems.
- Collaborate with NOC, InfoSec, DevOps, and support teams to improve infrastructure reliability and security.
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