Devops Engineer Linux Systems

Henry Ndum

Pittsburgh, PA 202-***-**** ******@*****.***

Summary

Results-driven Linux/DevOps Engineer with extensive hands-on experience deploying, securing, monitoring, and optimizing Unix/Linux systems across cloud and on-premises environments. Skilled in automating infrastructure with Ansible, Terraform, and Kubernetes, building scalable CI/CD pipelines, and implementing security and compliance frameworks. Adept at troubleshooting complex issues, designing fault-tolerant infrastructures, and collaborating with cross-functional teams to deliver high-impact projects. Passionate about solving problems, streamlining operations, and ensuring system reliability and security.

Core Skills

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

CI/CD & Automation: GitHub, Jenkins, Maven, Nexus, SonarQube, Docker, ArgoCD, Kubernetes

Monitoring & Logging: Prometheus, Grafana, Nagios, SolarWinds, EFK Stack

Security & Compliance: STIG, OpenSCAP, Fail2Ban, Firewalls, SSL/TLS, LDAP Authentication

Networking: TCP/IP, DNS, SNMP, NVSwitch architectures, KVM, VLANs, VPNs

Cloud Platforms: AWS (primary), GCP, Azure Hybrid integrations with on-prem data centers

Infrastructure Management: Red Hat Satellite, Terraform, Ansible, PXE boot provisioning

Hardware/Data Center: NVIDIA GB200 servers, Cable Cartridges (CBCs), rack & cooling optimization

Other: RAID, LVM, iLO/iDRAC/BMC, VMware ESXi, strong technical documentation

Professional Experience

Quanta Computer – Nashville, TN

Sr. NVIDIA GB200 Server Support Engineer 2024 – Present

Installed, configured, and maintained NVIDIA GB200 servers in HPC clusters.

Performed GPU/CPU health checks, firmware updates, and system parameter tuning for performance optimization.

Troubleshot GPU failures, CPU bottlenecks, NVSwitch connectivity, and CBC cable cartridge errors.

Optimized NVSwitch architecture for high-bandwidth GPU communication, supporting AI/ML workloads.

Ensured proper rack mounting, structured cabling, and cooling efficiency in high-density environments.

Integrated GPUs with NVSwitch and CBC systems, supporting large-scale data-intensive applications.

Documented configurations, maintenance procedures, and performance benchmarks.

Nashville Electric Service – Nashville, TN

Sr. Linux/DevOps Engineer 2022 – 2024

Designed and implemented CI/CD pipelines with Jenkins, SonarQube, Nexus, Docker, and ArgoCD.

Automated infrastructure provisioning with Terraform and Ansible, reducing manual errors.

Deployed and managed Kubernetes clusters across AWS and GCP, integrating with on-prem databases.

Set up Ansible Tower for centralized configuration management.

Established monitoring solutions using Prometheus and Grafana, enabling proactive alerts.

Developed Bash/Python automation scripts for patching, backups, and log analysis.

Strengthened security posture with Fail2Ban, SSL/TLS encryption, firewalls, and STIG compliance.

Genesco Inc – Nashville, TN

Linux Engineer 2021 – 2022

Managed Linux-based POS systems, ensuring reliability and security.

Monitored system health and resolved issues, minimizing downtime.

Implemented PKI infrastructure for secure certificate management.

Automated vSwitch and VLAN configurations in VMware using Terraform & Ansible.

Supported AWS infrastructure with cost-effective and fault-tolerant designs.

Authored detailed technical documentation for system configurations and troubleshooting.

Dynamic Tech – Hyattsville, MD

Unix/Linux Systems Administrator 2018 – 2021

Installed and configured Linux/Unix servers with Kickstart, PXE, and Ansible.

Administered 3000+ Linux/VMware servers across hybrid environments.

Automated patching, disk management, and cron jobs with shell scripting.

Maintained Red Hat Satellite repos for system migration and updates.

Implemented Nagios monitoring for resource utilization and availability.

Improved storage security and efficiency using RAID and LVM across environments.

Configured DNS and LDAP services for authentication and name resolution.

Education

Master of Science in Information Technology – Grand Canyon University (Enrolled)

Bachelor of Science in Computer Science – University of Buea, Cameroon

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