Senior Systems Administrator

4 days ago

Caloocan, Philippines Quantrics Enterprises Inc. Full time

Senior Systems Administrator (Work from Home) Be responsible for managing and optimizing Windows Server and Red Hat Enterprise Linux environments, ensuring system security, stability, and performance through proactive monitoring, maintenance, and automation. This role collaborates closely with cross-functional IT teams, supports incident response and disaster recovery efforts, and drives continuous improvements in infrastructure reliability and efficiency. Specific Duties And Responsibilities Administering and maintaining Windows Server and Red Hat Enterprise Linux (RHEL) systems, including patching, updates, upgrades, and performance tuning Providing after-hours on-call support, responding to and resolving system incidents and alerts promptly and efficiently Implementing and managing change management processes, ensuring all changes to the infrastructure are properly documented, tested, and executed Performing security hardening and vulnerability assessments on servers, implementing security best practices, and responding to security incidents Monitoring system performance, capacity, and availability using various monitoring tools, proactively identifying and resolving issues Collaborating with other IT teams, including network, database, and application teams, to ensure seamless integration and support Participating in disaster recovery and business continuity planning and testing, ensuring the ability to recover systems in the event of an outage Automating system administration tasks using scripting languages like Python, Ansible, PowerShell or even Bash, improving efficiency and reducing manual effort Creating and maintaining documentation, including system configurations, procedures, and troubleshooting guides Staying up-to-date with the latest technologies and trends in server administration, security, and operations COMPETENCIES Core Competencies (Must-have Competencies) At least 3 years of experience with Server Administration, with a focus on Red Hat Enterprise Linux (RHEL) systems and Windows Server At least 3 years of experience with virtualization technologies, including VMware vSphere and vCenter, and Red Hat OpenStack At least 3 years of experience with scripting languages and automation tools like Ansible, Python, PowerShell and Bash At least 3 years of recent experience working with legacy tools and systems such as Solaris, AIX, and HP-UX Strong understanding of networking concepts, including TCP/IP, DNS, DHCP, and routing Solid knowledge of security principles and best practices, including firewalls, intrusion detection/prevention systems, and vulnerability management Complementary Competencies (Good-to-have Competencies) Experience working in a 24/7 operational environment Familiarity with DevOps practices and principles Ability to work independently and as part of a team Excellent communication and interpersonal skills Strong organizational and time-management skills Ability to work under pressure and meet deadlines Willingness to participate in after-hours on-call rotation Knowledge of change management processes and procedures Ability to adapt to changing priorities and technologies Qualifications Educational Qualifications Bachelor’s Degree in Computer Science, Information Technology, Engineering, or related fields Work Conditions Work from Home Setup Amenable to be assigned on a rotating schedule (8:00 AM – 5:00 PM and 8:00 PM – 5:00 AM PHT) #J-18808-Ljbffr

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