Kanak Singh
Cloud & Linux Infrastructure Engineer | AWS | GCP | Automation | Production Systems
- Role
- Linux System Administrator - i at Stefanini Group
- Location
- Ghaziabad, UP, IN
- LinkedIn followers
- 500 followers
About Kanak Singh
Cloud & Linux Infrastructure Engineer with 3.8 years of experience managing large-scale production environments (500+ servers) across AWS, GCP, and VMware. Skilled in Linux administration, cloud operations, monitoring, and automation using Ansible and shell scripting. Experienced in handling critical production incidents, improving system performance, and ensuring high availability. Currently pursuing AWS Certified Cloud Practitioner (CLF-C02) to strengthen cloud expertise. Passionate about building scalable and reliable infrastructure
Experience
Linux System Administrator - i
Aug 2022 — Present
Key Responsibilities:• Manage 500+ Linux servers (RHEL, CentOS, Ubuntu, Rocky) across prod & non-prod environments; ensure 99.9% availability.• Monitor CPU/Memory/Disk and resolve performance alerts using Nagios & Zabbix; perform log analysis (journalctl, syslog, dmesg, auditd).• Perform OS patching, kernel updates and CIS-based security hardening; execute maintenance windows with minimal impact.• Handle incidents & service requests via Cherwell / ServiceNow; participate in bridge calls for Sev1/Sev2 incidents.• Automate repetitive tasks and configurations using Ansible; write basic shell scripts and cron jobs.• Manage DNS records (A, CNAME, TXT, MX, SRV) using Cloudflare and troubleshoot DNS issues.• Administer user access and authentication using Red Hat IPA; manage service restarts and permission changes via PuTTY/SSH.• Coordinate with Dev, Network, and QA teams for deployments and changes; document SOPs and runbooks.Projects:Project: Matthew International — Linux Infrastructure Support• Managed VMware-based Linux estate; resolved production incidents via Cherwell and alerts from Nagios.• Supported OS patching, performance tuning, and daily operations using PuTTY and log analysis.Project: Adtalem Global Education — Cloud & Linux Operations• Managed GCP Compute Engine VMs, incident/request handling via ServiceNow, and access controls using Red Hat IPA.• Automated tasks with Ansible and handled DNS changes through Cloudflare for app availability.Key Achievements:• Promoted from Intern to Linux System Administrator within 6 months.• Reduced downtime by ~25% and improved server responsiveness by ~15% with proactive tuning.• Migrated 15+ legacy servers to AWS/GCP, improving scalability by 30%.Tools & Technologies: RHEL, CentOS, Ubuntu, Rocky Linux, VMware vSphere/ESXi, GCP Compute Engine, AWS EC2, Ansible, Shell Scripting, Nagios, Zabbix, Cherwell, ServiceNow, Cloudflare, Red Hat IPA, PuTTY, LVM, Yum/APT, DNS, Monitoring.
Education
APJ Abdul Kalam Technological University
Master of Computer Applications - MCA, Computer Science
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