Senior Systems Administrator

This is a fully remote position, open to applicants in Texas.

📋 Description

• Deliver Tier 2/Tier 3 technical support and serve as the main escalation point for intricate infrastructure, authentication, Microsoft 365, access, and system-level challenges.

• Diagnose and resolve advanced user, system, and performance issues across hybrid environments.

• Implement onboarding, offboarding, and lifecycle management across identity, applications, and devices.

• Install, configure, and sustain hybrid server, storage, networking, and endpoint infrastructure across all locations.

• Set up and deploy applications using centralized management tools such as Company Portal.

• Create, maintain, and enhance automation scripts utilizing PowerShell, Python, Bash, or similar technologies.

• Oversee, monitor, and validate backup, restore, and disaster recovery solutions for hybrid systems.

• Conduct system updates, patching cycles, and security hardening tasks.

• Assist in container deployments, updates, troubleshooting, and availability management.

• Lead infrastructure-related projects by converting requirements into technical solutions and coordinating execution among teams.

• Implement, manage, and enhance security policies and technical controls across cloud and on-premises settings.

• Carry out security assessments, vulnerability remediation, and compliance validation in collaboration with security and governance teams.

• Collaborate with security and incident response teams on investigations, containment actions, and forensic efforts.

• Establish and maintain monitoring and observability solutions such as Azure Monitor and Zabbix.

• Configure alerting and notification systems to proactively detect system issues and performance decline.

• Analyze infrastructure performance metrics and apply optimization strategies.

• Troubleshoot complex system-level failures and coordinate resolution across cross-functional teams.

• Maintain system documentation, architectural diagrams, and runbooks.

• Engage in requirements gathering, design, deployment, testing, integration, cutover, and ongoing maintenance.

• Configure and deploy hardware, including servers, storage, networking, and endpoint devices at organizational sites.

• Establish and uphold cybersecurity posture through access controls, least-privilege principles, centralized authentication, and vendor recommendations.

• Carry out other job-related tasks as assigned by the manager.

• No supervisory responsibilities.

⛳️ Requirements

• U.S. Citizenship is required.

• Must be able to obtain and maintain a security clearance (if necessary).

• Bachelor's degree in a related field or equivalent experience in lieu of a degree.

• A minimum of 6 years of relevant systems administration experience.

• Security+ CE certification or an equivalent credential.

• Scripting experience in Python, PowerShell, Bash, or similar programming languages.

• Knowledge of five or more specified systems administration areas, including Windows Server, Windows 11, Ubuntu, iDRAC/iLO, Docker, enterprise networking, endpoint security, and vulnerability remediation.

• Familiarity with five or more specified cloud technologies, including Azure networking, SharePoint, Exchange, Entra ID, Azure Virtual Desktop, Azure Update Manager, Key Vaults, Storage Accounts, and Managed Identities.

• Strong analytical and troubleshooting skills.

• Excellent communication abilities for both technical and non-technical audiences.

• Capability to thrive in fast-paced environments and manage multiple priorities.

• Strong attention to detail and a commitment to operational excellence.

• Preferred: experience with Zabbix, Azure Monitor, and Log Analytics.

• Preferred: background in cybersecurity and compliance frameworks including NIST SP 800-171, CMMC 2.0, NIST SP 800-53, and RMF.

• Preferred: knowledge of DISA STIGs and CIS Benchmarks.

• Ability to regularly lift and/or move up to 30 pounds.

🏝️ Benefits

• Up to 20% national travel may be required for this position.

• Reasonable accommodations can be made to assist individuals with disabilities in performing essential functions.

• Equal Opportunity Employer.