System Administrator - SENIOR

Upturn; San Juan (PR); On-site; USD 70,000 - 110,000; Full time

Job summary

Upturn is seeking a System Administrator to configure, administer, and maintain enterprise IT systems ensuring high availability, performance, and security for operations.

You will collaborate with network, security, and application teams, manage Active Directory, patches, backups, and migrations while documenting procedures and adhering to policies.

Qualifications

• Bachelor's degree in Information Technology, Computer Science, or a related field (or equivalent professional experience).
• Minimum of seven (7) years of experience administering enterprise IT systems and infrastructure.
• Experience supporting production environments in medium to large organizations or government agencies.

Responsibilities

• Install, configure, and maintain enterprise operating systems and IT infrastructure systems.
• Monitor system performance, availability, and reliability to ensure continuous operations of critical IT services.
• Manage and maintain Active Directory environments, including user accounts, group policies, and permissions.
• Perform system patch management, updates, and system hardening activities.
• Troubleshoot and resolve system performance issues, failures, and service disruptions.
• Implement and maintain backup and recovery procedures for enterprise systems.
• Support system upgrades, migrations, and infrastructure modernization initiatives.
• Collaborate with network, security, and application teams to ensure system compatibility and integration.
• Maintain system documentation, configuration records, and operational procedures.
• Ensure compliance with organizational IT policies, cybersecurity requirements, and government standards.

Skills

OS administration

Active Directory

Monitoring

Backup & DR

Troubleshooting

Documentation

Education

Bachelor's degree in IT/CS or equivalent

Tools

VMware

Hyper-V

Enterprise monitoring tools

Job description

The System Administrator is responsible for the configuration, administration, and maintenance of enterprise IT systems. This role ensures the availability, performance, and security of operating systems, servers, and enterprise platforms used to support customers operations. The System Administrator works closely with network administrators, server administrators, database administrators, and security personnel to maintain a stable and secure IT infrastructure environment.

Key Responsibilities

• Install, configure, and maintain enterprise operating systems and IT infrastructure systems.
• Monitor system performance, availability, and reliability to ensure continuous operations of critical IT services.
• Manage and maintain Active Directory environments, including user accounts, group policies, and permissions.
• Perform system patch management, updates, and system hardening activities.
• Troubleshoot and resolve system performance issues, failures, and service disruptions.
• Implement and maintain backup and recovery procedures for enterprise systems.
• Support system upgrades, migrations, and infrastructure modernization initiatives.
• Collaborate with network, security, and application teams to ensure system compatibility and integration.
• Maintain system documentation, configuration records, and operational procedures.
• Ensure compliance with organizational IT policies, cybersecurity requirements, and government standards.

Minimum Qualifications

• Bachelor's degree in Information Technology, Computer Science, or a related field (or equivalent professional experience).
• Minimum of seven (7) years of experience administering enterprise IT systems and infrastructure.
• Experience supporting production environments in medium to large organizations or government agencies.

Required Technical Skills

• Operating system administration (Windows/Linux environments)
• Active Directory and identity management
• System monitoring and performance optimization
• Backup, recovery, and disaster recovery support
• System troubleshooting and infrastructure maintenance
• IT infrastructure documentation and operational support

Preferred Qualifications / Technologies / Certifications

• Microsoft Windows Server
• Linux server environments
• Virtualization platforms such as VMware or Microsoft Hyper-V
• Enterprise monitoring and management tools
• Microsoft Certified: Windows Server Hybrid Administrator Associate
• CompTIA Server+
• Linux Professional Institute Certification (LPIC)
• Other relevant system administration certifications