The Senior System Administrator (SA) is responsible for effective provisioning, installation/configuration, operation, and maintenance of systems hardware and software and related infrastructure. Participates in technical research and development to enable continuing innovation within the infrastructure. Ensures that system hardware, operating systems, software systems, and related procedures adhere to organizational values, enabling staff, volunteers, and Partners. Accountable for the following systems: Linux and Windows systems that support AGN infrastructure and ensuring the stability, integrity, and efficient operation of the infrastructure of organization's core information systems. Provide guidance to new SA for smooth onboarding. Server Infrastructure services includes all operational and administrative tasks like monitoring, patching and systems management. Comprises all services related to design, engineer and maintain tools and operations for IT security services and processes to deliver end-to-end security for IT infrastructure services. Perform general technical trouble shooting and give consultation to development teams. Ability to support Incident discussion and resolution. Maintain and update technical documentation for audit purposes. Knowledge sharing for new resource Develop and deploy security plan for Enterprise consisting of firewall, antivirus software, VPN, usage policies, software patching and security updates. Ensures successful implementation and maintenance of the defined standards Work as part of a team and provide 7x24 support when required. Bachelor's degree in computer science, information technology, or a related field Proven experience in an operating system support/patching or system administration role Strong understanding of operating systems such as Linux, Windows, and AWS Cloud Proficiency in troubleshooting and resolving technical issues related to operating systems Experience with scripting and automation tools (e.g., PowerShell, Bash, Ansible) for system maintenance and monitoring Familiarity with cloud-based middleware solutions and integration platforms. Strong analytical and problem-solving skills. Excellent communication and interpersonal skills. Ability to coordinate and work independently and as part of a team. Certifications in middleware technologies or related areas are a plus. This role may require on-call availability and working outside regular hours to resolve critical issues or perform scheduled maintenance. The position may involve collaboration with remote teams and vendors to ensure effective middleware support and integration.
