System Administrator

• We are seeking a Senior Systems Administrator to lead Independent Verification and Validation (IV&V) of our enterprise systems. You will verify that systems are built, configured, secured, and operated in accordance with project requirements and industry standards, working closely with engineering, operations, and project management teams., * Plan, coordinate, and execute IV&V activities for systems infrastructure projects.
• Develop and maintain IV&V processes, checklists, test plans, and documentation with full requirements traceability.
• Review system architectures, build standards, configurations, and deployments for compliance with requirements and standards.
• Independently assess and test server operating systems and virtualization platforms, including configuration, patching, access controls, logging and auditing, backup and recovery, and security hardening.
• Validate security controls and configuration baselines against applicable frameworks (e.g., NIST 800-53, CIS Benchmarks, DISA STIGs).
• Identify gaps, risks, and non-conformities, and recommend remediation.
• Prepare and present IV&V reports to stakeholders, highlighting findings, risks, and suggested improvements.
• Collaborate with cross-functional teams to ensure timely resolution of identified issues.
• Stay current with emerging technologies, security standards, and best practices.
• Mentor junior staff and contribute to continuous improvement.

• Bachelor’s degree in Computer Science, Information Technology, or a related field; advanced degree preferred.
• 7+ years of hands-on experience as a Systems Administrator or Systems Engineer, with at least 1 year in a lead or IV&V-focused capacity.
• Strong, hands-on Red Hat Enterprise Linux (RHEL) administration experience (installation, configuration, patching, troubleshooting, security hardening, shell scripting).
• Strong, hands-on VMware vSphere administration experience (ESXi, vCenter, clusters, storage, VM lifecycle, and performance management).
• Hands-on Windows Server and Active Directory administration experience (server configuration, patching, security hardening, and troubleshooting).
• Proven experience conducting IV&V, audits, or independent assessments of IT systems.
• Strong knowledge of security frameworks and compliance requirements (e.g., NIST, ISO, CIS, DISA STIG).
• Experience with systems monitoring, configuration management, and automation tools (e.g., Ansible, Red Hat Satellite, PowerCLI, scripting).
• Excellent analytical, problem-solving, written, and verbal communication skills.
• Ability to manage multiple priorities and meet deadlines in a fast-paced environment.

Preferred Qualifications

• Red Hat certifications (RHCSA, RHCE) and/or VMware certifications (VCP-DCV).
• Security or audit certifications such as CISSP, CRISC, CSQA, or similar.
• Experience with vulnerability scanning and compliance tools (e.g., Nessus, OpenSCAP)