Sudeep M - Linux Administrator/ OpenShift Engineer - Capgemini/OXXO

Summary

Linux Engineer with 3 years of experience in administering and supporting Red Hat Enterprise Linux environments and managing OpenShift container platforms. Skilled in system configuration, patch management, performance tuning, and production support. Hands-on-experience in OpenShift cluster operations, container deployment, RBAC configuration, and storage management. Proficient in troubleshooting critical incidents, and ensuring high availability, security, and server reliability. Strong collaborator with Application, DBA, Cloud and Data center teams to support seamless deployments and infrastructure stability.

Overview

3

years of professional experience

1

Certification

Work History

Linux Administrator/ OpenShift Engineer

Capgemini/OXXO

02.2023 - Current

Administered and supported Red Hat Enterprise Linux (RHEL 7, 8, and 9) servers across development, QA, and production environments.
Performed OS installation, system configuration, patching, and upgrade using YUM/DNF while ensuring minimal downtime.
Managed user and group administration, sudo privileges, password policies, and access controls as per organisational security standards.
Handled system services and processes using systemctl, troubleshooting boot failures and service-level issues.
Configured and maintained LVM, disk partitioning, filesystem management (ext4, NFS, xfs), and mount points.
Monitor server performance and availability using top, vmstat, iostat, sar, df, free, and log analysis via journalctl, and implement firewall rules (firewalld) and security compliance checks.
Performed backup verification, restoration activities, and supported disaster recovery processes.
Configured and maintained basic network settings, hostname resolution, and basic DNS troubleshooting.
Provide production support, incident handling, root cause analysis (RCA), and timely issue resolution.
Coordinated with applications, DBAs, cloud, and data centre teams for smooth application deployments and infrastructure stability.
Supported and managed Red Hat OpenShift (OCP 4.x) clusters in enterprise environments, and deployed and managed containerised applications using Pods, Deployments, Services, Routes, and ReplicaSets.
Created and managed projects/namespaces, user access, and RBAC policies, and worked with ConfigMaps and Secrets for application configuration and sensitive data management.
Monitored and troubleshot cluster health, pod failures, image pull errors, networking, and resource issues using the oc CLI.
Assisted in OpenShift cluster upgrades, scaling, and node-level troubleshooting.
Collaborated with developers to optimise container performance and resource utilisation.

Education

Bachelor of Engineering - Computer Science & Engineering

Jawaharlal Nehru National College Of Engineering

Shivamogga

2022

Skills

Operating Systems: Red Hat Enterprise Linux (RHEL 6/7/8/9), AIX (IBM)
Container platform: Red Hat OpenShift 4x, Kubernetes
Monitoring and troubleshooting: Zabbix, CyberArk, system logs

Cloud Exposure: AWS EC2, Azure, and VMware Workstation
Networking and Fundamentals: CCNA Fundamentals, DNS, firewalld, and DHCP
ITSM & Utilities: ITIL 4, ServiceNow