Systems Engineer Senior

Steve Doyle

Email: *****.*.*****@*******.*** Phone: 512-***-****

SUMMARY

Results-driven Senior Systems Engineer with a strong track record in Linux/Unix systems administration, automation, and virtualization. Adept in leading, collaborating, and executing within complex, high-stakes environments. Proven success in streamlining operations, securing infrastructure, and deploying scalable automation frameworks.

SKILLS

Operating Systems: RHEL, Ubuntu, SLES, Oracle Solaris, Oracle Enterprise Linux

Automation & Configuration Management: Ansible, AWX, AAP, Ansible Tower, SaltStack

Virtualization Platforms: VMware vSphere/ESXi, Citrix XenServer, Nutanix, Oracle OVM, KVM/libvirt, AWS

Cybersecurity: OpenSCAP, STIG Compliance, PCI/DISA, ACAS, SRR

Other: GitLab, Red Hat Satellite, Puppet, Cursor AI, Visual Studio Code

PROFESSIONAL EXPERIENCE

Senior Linux Engineer

General Dynamics Information Technology – June 2022 to July 2025

- Administer and engineer RHEL systems across physical, AWS, and Nutanix virtual environments

- Standardized and automated critical tasks including patching, vulnerability remediation, account/app maintenance, and server builds using Ansible and terraform

- Designed and deployed a multi-site Ansible Tower/AAP solution integrated with GitLab and Red Hat Satellite, utilizing AD authentication

- Hardened and remediated RHEL servers using OpenSCAP and Ansible-based frameworks

Senior Linux/Solaris Engineer

Sirius Computer Solutions (CDW) – July 2017 to June 2022

- Supported enterprise environments with RHEL, Ubuntu, SLES, and Solaris 10/11 across physical, VMware, XenServer, and KVM platforms

- Developed robust Ansible playbooks for VM lifecycle management, snapshot tasks, patching, reporting, and account administration

- Deployed and maintained Ansible Tower in production and AWX in development environments

- Created efficient Solaris LU (10) and BE (11) patching strategies to minimize downtime

Senior Linux/Unix Engineer

Sungard Availability Services – Dec 2015 to July 2017

- Architected and maintained RHEL (v5–v7) and Solaris 11 systems, including zones, LDOMs, and Oracle VM

- Managed high-availability environments using RHEL PCS and Oracle/Sun Cluster, supporting critical Oracle DB and NFS services

- Led automation initiatives using Puppet, SaltStack, and VMware vRealize

Senior Linux/Unix Administrator

HP Public Sector – Feb 2010 to Dec 2015

- Supported RHEL, Solaris, AIX, and HP-UX systems for clients such as Army GFEBS, NGEN/NMCI, and the City of Anaheim

- Leveraged jumpstart, kickstart, and HPSA for server provisioning and patch management

- Conducted STIG compliance, hardening, and vulnerability assessments using OpenSCAP, ACAS, and SRR scripts

- Managed complex DNS configurations with split-horizon BIND9 for federal/state environments

EDUCATION

Bachelor of Science in Computer Science

University of Houston–Victoria

CERTIFICATIONS

AWS Certified Cloud Practitioner

Red Hat Certified System Administrator (RHCSA)

CompTIA Security+ CE

Contact this candidate