Senior System Administrator- Hybrid

About the position The Senior System Administrator will oversee the installation, configuration, maintenance, and reliable operation of computer systems, servers, and network infrastructure. This role is responsible for managing both on-premises and cloud-based systems while ensuring high availability and security of business applications. The Senior System Administrator will also collaborate with cross-functional teams, mentor junior administrators, and lead infrastructure improvement projects. Responsibilities • Manage and maintain Windows, Linux, and virtual servers (Hyper-V), ensuring systems run smoothly with optimal performance. , • Configure and monitor firewalls, VPNs, and network infrastructure to ensure secure and efficient data communication. , • Oversee the operation of cloud services (Azure), implementing best practices for cloud architecture. , • Implement security protocols and patches to ensure compliance with industry standards, responding proactively to emerging vulnerabilities. , • Manage data backups, disaster recovery plans, and ensure data integrity through routine testing and verification. , • Use monitoring tools (e.g., DataDog) to track system performance and resolve issues before they impact business operations. , • Create and maintain comprehensive documentation related to systems, configurations, procedures, and troubleshooting. , • Mentor junior system administrators, providing guidance and knowledge transfer to improve team performance and efficiency. , • Lead infrastructure upgrade projects, system migrations, and continuous improvement initiatives. , • Ensure all systems are compliant with regulatory requirements, company policies, and industry best practices (e.g., NIST & ISO). , • Provide advanced troubleshooting and support for complex issues, working closely with the IT support team and other departments.

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