Anwar Justice
West Des Moines,IA
Summary
Results-driven Linux Systems Administrator and Engineer with over 8 years of experience in enterprise IT environments. Expertise in designing, building, maintaining, and decommissioning server infrastructure while ensuring system reliability and security. Proven ability to implement automation, optimize system performance, and enhance operational efficiency. Adept at collaborating with cross-functional teams to meet organizational goals and deliver robust solutions.
Overview
7
7
years of professional experience
Work History
Linux Systems Engineer
Company 1
Dont Know Yet, IDK
05.2020 - Current
- Deployed and managed Dell PowerEdge R630/640s/650s, HP DL360/380 G10 and G11 servers, performing physical installations, cabling, racking, and configuration at on-premises and colocation data centers.
- Performed regular firmware and BIOS updates across HP and Dell servers to maintain optimal hardware compatibility and security.
- Architected solutions to meet client requirements, including remote site deployments and building highly available infrastructure.
- Provisioned RHEL servers using Satellite Server, automating configurations with custom Bash and Ansible scripts.
- Administered and maintained VMware vSphere environments, including deploying and managing ESXi hosts, configuring virtual switches, and optimizing resource pools to ensure efficient workload performance.
- Performed virtual machine migrations using vMotion and Storage vMotion, minimizing downtime during maintenance and ensuring seamless resource reallocation.
- Applied critical updates, kernel patches, and Red Hat errata to over 100 servers, maintaining system security and reliability.
- Used tcpdump and strace to troubleshoot network and application performance issues, coordinating with Red Hat support for escalated cases.
- Automated tasks and infrastructure provisioning using PowerCLI, Bash, and Perl, contributing to a 30% improvement in team efficiency.
- Participated in a multi-phase data center migration project, ensuring minimal downtime during server relocations and lifecycle transitions.
- Configured and maintained Splunk log monitoring for real-time security alerts and performance metrics.
- Collaborated with cross-functional teams to improve automation pipelines and documentation processes.
- Tuned Linux kernel parameters for low-latency environments, ensuring minimal downtime for trading servers and other time-sensitive applications.
- Created and deployed custom Bash and Python scripts to automate repetitive tasks such as log rotation, disk cleanup, and performance monitoring.
- Diagnosed complex network and hardware issues using tools such as Wireshark and tcpdump, ensuring minimal impact on operations.
- Implemented security best practices, including SELinux configuration, firewall management with iptables, and periodic vulnerability scans.
- Supported large-scale migrations of legacy systems to containerized and cloud-based infrastructures, reducing costs and improving scalability.
Linux Systems Adminstrator
Company 2
Dont Know Yet, IDK
01.2018 - 04.2020
- Built, configured, and maintained Linux servers (RHEL and CentOS) using PXE Boot and Kickstart, streamlining server provisioning processes.
- Upgraded and applied patches to servers using YUM and DNF, ensuring compliance with security and performance standards.
- Developed Ansible playbooks to automate system configurations, patch management, and software deployments across hundreds of servers.
- Applied firmware upgrades to Dell and HP servers using iDRAC and iLO, reducing hardware-related issues by 20%.
- Managed file system operations, including creation and maintenance of ext4 and XFS file systems, disk partitioning, and troubleshooting corrupted systems.
- Performed user account management, including creating users, resetting passwords, and managing permissions using chmod, chown, and chgrp.
- Configured DNS, DHCP, NFS, and Apache servers to enhance system functionality and network accessibility.
- Conducted server decommissioning processes, securely removing data, unmounting file systems, and updating documentation.
- Monitored system performance using Nagios and SolarWinds, resolving bottlenecks and ensuring uptime.
- Designed and implemented centralized log aggregation and monitoring systems for security and performance analysis.
- Collaborated with cross-functional teams to document workflows, update ServiceNow records, and ensure project milestones were met.
Skills
- Operating Systems: Red Hat Enterprise Linux (RHEL 6/7/8), CentOS (6/7/8), Ubuntu
- Automation Tools: Ansible, Puppet
- Scripting: Bash, Python, PowerShell
- Server Management: PXE Boot, Kickstart, iLO/iDRAC, LVM, RAID
- Networking: TCP/IP, DNS, FTP, SSH
- Monitoring Tools: Nagios, SolarWinds, Splunk
- Version Control: Git, GitHub
- Virtualization: VMware ESXi, KVM
- Other Tools: YUM, DNF, RPM, Satellite Server
Timeline
Linux Systems Engineer
Company 1
05.2020 - Current
Linux Systems Adminstrator
Company 2
01.2018 - 04.2020
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