Linux Systems Engineer 7 Years of High-Availability Ops

Hubert Tchetche Mabou

Glen Burnie, MD

Email: **********@*****.***, Phone: 773-***-****

DoD Secret Security Clearance

LinkedIn: Hubert Tchetche Mabou LinkedIn

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PROFESSIONAL SUMMARY

I am a results-driven and detail-oriented Linux Systems Administrator/Engineer with nearly 7 years of hands-on experience in managing, configuring, securing, and maintaining Linux-based infrastructures. I have a strong track record of operating in fast-paced, high-availability environments and possess a solid understanding of networking, system performance tuning, reliability, virtualization, and automation using tools like Shell scripting and Ansible.

I am proficient across a wide range of Linux distributions, including RHEL, CentOS, and Ubuntu, and have a working knowledge of basic Windows Server administration. My strengths include excellent troubleshooting and analytical skills, effective communication, and a deep passion for open-source technologies and process optimization. I thrive in dynamic environments that value innovation and technical expertise

PROFESSIONAL EXPERIENCE

Parsons Government Services, Inc. – Fort Meade, MD Linux System Engineer, Level II Oct. 2022 – Aug. 2025 Key Contributions:

• Managed and maintained 150+ Linux servers, including deployments, upgrades, and patching.

• Automated repetitive tasks using Bash, crontab, and Ansible, reducing manual workload by 40%.

• Implemented and maintained monitoring tools like LibreNMS, Nagios and Prometheus to improve uptime and visibility into system health.

• Performed log analysis, system performance tuning, and analyzed incidents’ root causes.

• Managed LVM, disk partitions, and backup solutions using rsync and tar.

• Enforced security compliance through DISA STIG implementation on Linux and Windows systems.

• Provided basic Windows Server tasks, including account creation and permission management, patching and update.

• Integrated Linux systems with Windows environments using Samba and NFS.

• Supported VMware Horizon, ESXi, Nutanix, and Rubrik environments.

• Developed and maintained comprehensive documentation, including SOPs, troubleshooting guides, and system configurations.

Data Group Services – Newark, DE

Linux System Administrator Jan. 2020 – Oct. 2022

Key Contributions:

• Conducted system patching and package updates using YUM and APT.

• Installed, configured, and maintained Linux servers (RHEL, Ubuntu, CentOS).

• Employed tools like TOP and PS for monitoring system health and troubleshooting issues.

• Handled daily Linux (RHEL, CentOS & Ubuntu) admin tasks in a mixed OS environment.

• Configured and secured SSH, iptables, and SELinux policies for internal and public-facing systems.

• Monitored system logs and user activities while ensuring system integrity and compliance.

• Participated in server migration projects and system upgrades. Hubert Tchetche Mabou

Glen Burnie, MD

Email: **********@*****.***, Phone: 773-***-**** DoD Secret Security Clearance

LinkedIn: Hubert Tchetche Mabou LinkedIn

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• Maintained NFS and Samba shares for Linux-Windows file exchange.

• Patched and updated Windows Server 2011, 2016, 2019 including creation of user accounts, password resets, and system logs monitoring.

Aufis Consulting LLC – Gaithersburg, MD

Linux System Engineer Nov. 2018 – Dec. 2019

Key Contributions:

• Assisted in setting up and maintaining Linux servers for internal testing and development.

• Managed user accounts, permissions, and basic networking (DNS, DHCP, SSH).

• Assisted with onboarding/offboarding and system access across Linux and Windows environments.

• Maintained asset documentation and server logs for compliance.

• Check system logs for errors or unusual activity KFM Solutions – Bowie, MD

Linux System Administrator Oct. 2017 – Nov. 2018

Key Contributions:

• Responded to support tickets from users (basic tech support and password resets)

• Resolved basic OS, printer, and connectivity issues, and escalated complex problems.

• Created, modified, and deleted user accounts (Active Directory, email systems)

• Applied antivirus updates and performed scans

• Provided support for applications (e.g., Microsoft Office, remote desktop tools)

• Monitored network connectivity, system performance (CPU, memory, disk usage), and reported outages or issues.

EDUCATION

University of Maryland Global Campus – Adelphi, MD M.S. in Information Technology/Software Engineering Feb. 2018 – Feb. 2022 Relevant Coursework: Computer Programming, Software Methodologies, Database Systems, System Architecture, IT Project Management.

https://utrains.org/ – Sugar Land, TX

Linux – AWS – DevOps Trainings May – Dec. 2016

Relevant Coursework: Linux Fundamentals, Virtualization, Docker, AWS Compute Services, Terraform, Jenkins, Ansible.

https://www.udacity.com/

Introduction to Programming Jan – May 2016

Languages: HTML, CSS, Python, Java, JavaScript.

Seton Hall University – South Orange, NJ

M.A. in Diplomacy and International Relations Aug. 2013 – May 2015 Hubert Tchetche Mabou

Glen Burnie, MD

Email: **********@*****.***, Phone: 773-***-**** DoD Secret Security Clearance

LinkedIn: Hubert Tchetche Mabou LinkedIn

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CERTIFICATIONS

• CompTIA Security+

• CompTIA Linux

TECHNICAL SKILLS

• Linux Platforms: RHEL, CentOS, Ubuntu, Debian

• Scripting & Automation: Bash, Python (basic), Ansible, cron jobs.w

• Configuration Management: Ansible, shell scripts, Kickstart.

• Monitoring Tools: Nagios, Prometheus, Grafana, top, iostat

• Storage & Filesystems: LVM, ext4/xfs, NFS, Samba, RAID

• Networking: TCP/IP, SSH, DNS, DHCP, firewalld, iptables, VLANs

• Virtualization & Cloud: KVM, VMware ESXi, VirtualBox, AWS (EC2, S3 - basic)

• Version Control: Git

• Security: SELinux, firewall configuration, log auditing

• Backup Tools: rsync, tar, cron.

• Windows (Basic): Active Directory user management, Windows file sharing, Windows Server 2011/2016/2019 fundamentals

• ITIL-aligned Ticketing Systems: Jira, ServiceNow, Ticket Planner PROJECTS & ACHIEVEMENTS

• SHARKSEER Decommission

• Automated security patching for 150+ Linux servers using Ansible.

• Reduced system downtime by 30% by optimizing monitoring and incident response.

• Supported cross-platform network shares between Linux and Windows systems.

• Led internal Linux training for junior team members, improving team skill level.

• https://github.com/hubert1980

PROFESSIONAL TOOLS & ENVIRONMENT

Linux (RHEL, CentOS, Ubuntu) Bash Ansible Git Prometheus Grafana SSH LVM NFS Samba

VMware KVM Windows Server (basic) Active Directory (basic) AWS (EC2, S3)

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