Infrastructure Engineer (Windows/Linux/VMware skills) - Secret clearance

We are seeking a hands-on Infrastructure Engineer with a Secret clearance to support and maintain the ServiceNow platform and its underlying infrastructure in a disconnected (dark site / air-gapped) environment. This role is responsible for designing, deploying, configuring, and maintaining secure, highly available infrastructure including servers, virtualization platforms, operating systems, and application deployments. The ideal candidate is proactive, security-focused, and experienced with VMware, Windows and Linux administration, automation, and restricted/offline environments. Basic database support may be required; deep DBA expertise is not necessary.

Infrastructure & Virtualization

• Deploy, configure, and manage VMware vCenter, ESXi hosts, virtual machines, templates, and resource pools.
• Administer Windows Server and RHEL environments, including Active Directory and identity services.
• Create and maintain OVAs, golden images, and VM templates for consistent deployments.
• Automate provisioning and maintenance using PowerShell, Bash, or similar tools.
• Apply security hardening and compliance standards (CIS, NIST, STIGs).
• Support offline patching, updates, and secure change management in air-gapped environments.
• Ensure scalability, availability, and operational continuity.

Platform & Application Support

• Provide infrastructure-level support for a disconnected ServiceNow deployment.
• Assist with application deployments, configuration, and troubleshooting.
• Manage storage, basic networking, and backup/restore processes (e.g., Cohesity or similar).
• Provide light support for related systems such as MS SQL tools (WSUS, Volume Activation).

Database (Secondary)

• Perform basic MariaDB/MySQL administration including configuration, backups, monitoring, and minor tuning.
• Assist with availability and recovery activities as needed.

Collaboration & Documentation

• Partner with Architecture, DevOps, Security, and application teams to deliver compliant solutions.
• Produce and maintain infrastructure diagrams, build guides, deployment procedures, and compliance documentation.
• Contribute to incident response and root-cause analysis in secure environments.

Requirements:
• Proven experience as an Infrastructure Engineer or similar role.
• Strong hands-on expertise with VMware (vCenter, ESXi, templates, OVAs, cloning, deployment).
• Solid Windows Server and RHEL/Linux administration skills, including Active Directory.
• Experience building and deploying virtual images and application servers.
• Scripting/automation proficiency (PowerShell, Bash; Python a plus).
• Knowledge of security hardening and compliance frameworks (CIS, NIST, STIGs).
• Experience operating in air-gapped or disconnected environments.
• Strong troubleshooting, communication, and documentation skills.
• Ability to work both independently and within cross-functional teams in high-security settings.

Preferred / Nice to Have

• Basic MariaDB/MySQL administration.
• Familiarity with enterprise backup and disaster recovery tools (e.g., Cohesity).
• Exposure to ServiceNow infrastructure requirements.
• Basic MS SQL support experience.
• Knowledge of additional virtualization platforms (Hyper-V, KVM) or hybrid/cloud concepts.
• Certifications such as VMware VCP, RHCSA/RHCE, Microsoft Windows Server, Security+, or equivalent.
• Experience supporting secure government or large enterprise environments.

Benefits:
140-170K (pending experience)

Our comprehensive benefits package for full-time salaried employees is effective immediately upon the start date. Benefits include comprehensive PPO medical coverage with access to a Health Savings Account (HSA) option, a vision plan, and dental insurance with the base dental plan option paid for by PGTEK. Life Insurance, Short and Long-Term disability, and Critical Illness insurance have premiums covered. Additionally, PGTEK offers a matching 401(k) plan and a discount on pet insurance through ASPCA Pet Insurance. An Employee Assistance Program is available at no cost to all employees. PGTEK offers a generous amount of PTO and Holidays, and an Education Assistance Program is available after 12 months of employment.

ABOUT PGTEK:

PGTEK is a true consulting organization dedicated to helping clients achieve their business and technology objectives utilizing our decades of experience and business relationships. PGTEK invests in the educational advancements of our staff by providing the necessary resources to complete Professional and Business Certifications. Our company is our people, and we treat them like family.

EOE, including disability/veterans