System Administration

Roles & Responsibilities: 

1. System Monitoring and Support: 

• Continuously monitor on-premises and cloud infrastructure using tools like Grafana, Zabbix and any Cloud monitoring tools. 

• Proactively identify, troubleshoot, and resolve system issues to ensure maximum uptime. 

2. Cloud Infrastructure Administration: 

• Configure and manage cloud services such as Compute Instances, Block Volumes, Object Storage, VCNs (Virtual Cloud Networks), and Load Balancers. 

• Implement and manage IAM Policies, Compartments, and Tagging for resource organization and access control. 

• Optimize cloud resources for cost and performance using tools like Cost Analysis. 

• Configure and maintain Database Services, such as Autonomous Databases and DB Systems. 

3. Infrastructure as Code (IaC): 

• Use Terraform to manage and provision cloud infrastructure. 

• Write, assess, and maintain Terraform scripts for scalable and consistent deployments. 

• Collaborate with DevOps teams to adopt and refine infrastructure best practices. 

4. Incident and Change Management: 

• Manage incidents, service requests, and changes via ServiceNow ITSM tools. 

• Collaborate with teams to resolve complex technical challenges within SLAs. 

5. Automation and Scripting: 

• Develop and maintain scripts in Bash, Python, PERL, Ruby, or similar languages to automate routine tasks. 

• Enhance operational processes to improve system performance and team efficiency. 

6. Documentation and Reporting: 

• Maintain accurate documentation of system processes, configurations, and incident resolutions. 

• Share knowledge with team members to foster collaboration and faster problem resolution. 

Required Skills: 

• Proven experience in system administration across on-premises and cloud environments. 

• Linux/Unix fundamentals, File Systems troubleshooting, good understanding of the various tools / services that are available by default with the Operating system. 

• Good understanding of Linux Systems implies understanding these and more Any Shell/Bash, sed/awk/grep/egrep, VI/VIM/Emacs, netstat, lsof, strace, ps/top/atop/dstat, grub boot config & systems rescue, fstab/disk labels, ext3/ext4, IPtables, sysstat (sar/vmstat/iostat etc), run levels & startup scripts, sudo/chroot/chkrootkit/rkhunter. 

• Knowledge of concepts like DNS, HTTP, TCP/UDP. 

• Understanding of RAID/DAS/SAN/NAS storage solutions. 

• Exposure to database servers such as MySQL 

• Intermediate level skills managing web servers running Apache, Nginx, BIND, Exim, Dovecot etc. 

• Familiar with Firewall tools like iptables, CSF, LFD 

• Hands-on experience with cloud services such as Compute, Block Volumes, Object Storage, Networking (VCNs, Subnets, Security Lists, and DRG), and Load Balancers. 

• Knowledge working with Terraform and automation tools like cloud CLI. 

• Experience with monitoring tools like Grafana, Zabbix, and Cloud Monitoring. 

• Familiarity with OCI security features, including IAM Policies, KMS, and Vault Services. 

• Experience with ServiceNow ITSM or equivalent tools. 

Desirable Skills: 

• Certifications: (preferred not mandatory) 

• Cloud Infrastructure Certified Associate/Professional. (OCI/AWS/Azure) 

• Red Hat Certified System Administrator (RHCSA) or equivalent. 

• Advanced scripting capabilities in languages like Python, Bash, Go, PHP etc. 

Soft Skills: 

• Strong analytical, troubleshooting, and problem-solving abilities. 

• Excellent communication and collaboration skills. 

Work Conditions: 

• Willingness to work shifts and participate in a 24/7 on-call rotation. 

• Ability to thrive in a fast-paced and dynamic environment.