Senior Linux Systems Administrator and Engineer

SHAFIA MEMON

Senior Linux Systems Administrator Linux Systems Engineer

Infrastructure Engineer

***************@*****.*** 732-***-****

Summary:

Senior Linux Systems Administrator with 6+ years of experience administering enterprise Linux infrastructure across RHEL, CentOS, Ubuntu, VMware, AWS, and hybrid environments supporting mission-critical production systems. Experienced in Linux server provisioning, Bash scripting, Apache web server administration, LDAP, DNS, SSH, patch management, system hardening, disaster recovery, production releases, incident management, root cause analysis (RCA), infrastructure automation using Ansible, and change management. Skilled in troubleshooting enterprise Linux environments, maintaining high availability, and collaborating with cross-functional teams to deliver reliable infrastructure services.

Work Experience

Linux Systems Engineer

Tiktok, New York, NY Sep 2024 – Present

Administered enterprise Linux infrastructure across VMware, AWS, and Kubernetes production environments supporting high availability and operational reliability.

Designed and deployed Linux infrastructure using AWS EC2, VPC, IAM, S3, and CloudWatch.

Provisioned and managed VMware virtual machines including deployment, snapshots, cloning, lifecycle management, and resource optimization.

Automated Linux administration, configuration management, software deployment, and patching using Bash, Ansible, and Ansible Tower.

Managed Linux user accounts, permissions, ownership, and file system access across enterprise environments.

Configured and maintained cron jobs, scheduled automation tasks, and operational scripts.

Performed application deployments, configuration updates, and post-deployment validation across production and pre-production environments.

Troubleshot Linux application logs, system services, and infrastructure issues to restore production services.

Analyzed Linux system logs and application logs to troubleshoot production issues and support incident resolution.

Collaborated with application, networking, database, and security teams during production releases, change implementations, incident resolution, and root cause analysis (RCA).

Implemented GitLab-based configuration management, version-controlled deployments, and infrastructure automation to improve consistency across enterprise Linux environments.

Monitored production infrastructure using Nagios and CloudWatch, proactively identifying performance bottlenecks and system failures.

Reviewed Linux server configurations and implemented configuration changes to maintain security, compliance, and operational standards.

Installed, configured, administered, and maintained Apache HTTP Server supporting enterprise Linux-based applications.

Performed Linux server provisioning, patch management, system hardening, kernel tuning, and performance optimization across enterprise production systems.

Investigated production incidents, performed root cause analysis, and restored critical business services.

Planned and executed infrastructure upgrades, maintenance windows, disaster recovery activities, and system patching with minimal production impact.

Collaborated with networking, storage, virtualization, and security teams during infrastructure deployments.

Supported Windows Server infrastructure, Active Directory, Group Policy, DNS, and user account administration within hybrid enterprise environments.

Maintained infrastructure documentation, configuration records, and change management documentation to support operational compliance.

Linux Administrator

UPS, Mahwah, NJ Sep 2021 – Aug 2024

Administered enterprise Linux infrastructure hosted on VMware vSphere and ESXi.

Provisioned and administered Linux servers supporting enterprise applications and production workloads.

Administered LDAP authentication, SSH configuration, Linux permissions, and access control.

Created and maintained Bash scripts to automate operational and administrative tasks.

Performed application installation, software deployments, configuration updates, and production environment maintenance across enterprise Linux systems.

Managed Linux services, filesystem utilization, storage allocation, and performance troubleshooting.

Supported scheduled maintenance activities, production releases, and disaster recovery testing.

Managed VMware virtual machines, storage allocation, snapshots, and resource optimization.

Maintained DNS, DHCP, LDAP, TCP/IP, SSH, and firewall configurations.

Supported Windows Server and Active Directory administration for user provisioning and authentication services.

Executed operating system patching, server hardening, and lifecycle management.

Implemented Kickstart and Bash automation to standardize Linux server deployments and reduce manual provisioning effort.

Automated Linux administration and operational workflows using Bash scripting to improve consistency and reduce manual effort.

Monitored enterprise systems using Datadog.

Supported backup validation, disaster recovery readiness, and system recovery testing.

Assisted with physical server installation, cabling, hardware replacement, and data center support.

Collaborated with infrastructure vendors and engineering teams to resolve production issues.

Linux Technician

Allergans, New Jersey Aug 2019 – Jul 2021

Supported enterprise Linux systems administration, monitoring, troubleshooting, and routine maintenance across production environments.

Assisted with server patching, vulnerability remediation, and system hardening.

Maintained technical documentation, operational procedures, and configuration records.

Managed user accounts, permissions, and access control.

Performed hardware diagnostics and coordinated vendor-assisted repairs.

Technical Skills:

Operating Systems: RHEL, CentOS, Oracle Linux, Ubuntu, Windows Server

Linux Administration: Bash, Shell Scripting, Cron Jobs, Server Provisioning, Patch Management, System Hardening, Performance Tuning, User & Group Administration, File Permissions, SSH, SFTP, Package Management, Production Support

Automation & Configuration Management: Ansible, Ansible Tower (AWX), Bash, Python, GitLab, GitHub

Infrastructure: VMware vSphere, ESXi, AWS (EC2, IAM, VPC, S3, CloudFormation, CloudWatch), DNS, DHCP, LDAP, TCP/IP, SSH, Apache HTTP Server, Active Directory

Monitoring: Nagios, Datadog, CloudWatch

Operations: Incident Management, Root Cause Analysis (RCA), Change Management, Disaster Recovery, Production Releases, Production Support, Technical Documentation

Education:

Bachelor of commerce (B.Com) 2012

University of Sindh, Jamshoro

Certification

Red Hat Certified System Administrator (RHCSA)

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