Systems Administrator, Senior

Senior Systems Administrator to manage cloud platforms (OCI, AWS, Azure, GCP) across hybrid infrastructures globally. Responsibilities include cloud infrastructure management (Compute, Storage, Networking, IAM policies, NSGs, Security Lists), automation and provisioning with Terraform and Ansible, diagnosing connectivity/performance/security issues using monitoring/logging tools (Grafana, Prometheus, CloudWatch, Zabbix, OCI Monitoring), patching and system maintenance for Linux/Unix, scripting in Bash/Python/Ruby, IaC with Terraform, incident management with SLAs, database management (MySQL, PostgreSQL) and web server administration (Apache, Nginx). Collaboration with global teams in a 24x7 environment, and strong fundamentals in networking, OS tools, and virtualization. Preferred certifications include OCI, AWS, or Azure Administrator; educational qualifications include Diploma/BE/BCA/MCA/MSc in CS/IT; the role supports work-from-home, hybrid, or office environments.