Senior Systems Administrator

oneweb

. Provide Tier 2/Tier 3 technical support and act as the primary escalation point for complex infrastructure, authentication, Microsoft 365, access, and system-level issues .

Posted 10/30/2026full-timeRemote • Texas • United StatesSenior💰 $130,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in systems administration, including troubleshooting, security management, and infrastructure deployment across hybrid environments. Proficient in scripting and automation, with a strong focus on operational excellence and compliance with security frameworks.

Highest-signal resume keywords

Systems Administration ExperienceSecurity+ CE CertificationScripting in Python, PowerShell, BashKnowledge of Azure Networking and Cloud TechnologiesAnalytical and Troubleshooting Abilities

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Systems AdministrationScripting in PythonScripting in PowerShellScripting in BashInfrastructure DeploymentTroubleshooting Complex IssuesSecurity ManagementBackup and Disaster Recovery SolutionsPerformance OptimizationConfiguration Management

Soft Skills

Excellent Communication SkillsStrong Attention to DetailAbility to Manage Multiple PrioritiesAnalytical ThinkingOperational Excellence Commitment

Tools & Technologies

Microsoft 365Azure MonitorZabbixDockerCompany PortalWindows ServerUbuntuIDRAC/iLOAzure Virtual DesktopKey Vaults

Certifications & Qualifications

Security+ CE Certification

Industry Keywords

CybersecurityCompliance FrameworksNIST SP 800-171CMMC 2.0NIST SP 800-53RMFDISA STIGsCIS BenchmarksHybrid EnvironmentsEndpoint Security

Tech Stack

Tools & technologies

AzureCloudCyber SecurityDockerPython

About the role

Key responsibilities & impact

Provide Tier 2/Tier 3 technical support and act as the primary escalation point for complex infrastructure, authentication, Microsoft 365, access, and system-level issues
Troubleshoot and resolve advanced user, system, and performance issues across hybrid environments
Execute onboarding, offboarding, and lifecycle management across identity, applications, and devices
Deploy, configure, and maintain hybrid server, storage, networking, and endpoint infrastructure across all sites
Configure and deploy applications using centralized management tools such as Company Portal
Develop, maintain, and optimize automation scripts using PowerShell, Python, Bash, or similar technologies
Manage, monitor, and validate backup, restore, and disaster recovery solutions for hybrid systems
Perform system updates, patching cycles, and security hardening activities
Support container deployments, updates, troubleshooting, and availability management
Lead infrastructure-related projects by translating requirements into technical solutions and coordinating execution across teams
Implement, maintain, and improve security policies and technical controls across cloud and on-premises environments
Conduct security assessments, vulnerability remediation, and compliance validation with security and governance teams
Coordinate with security and incident response teams on investigations, containment actions, and forensic efforts
Implement and administer monitoring and observability solutions such as Azure Monitor and Zabbix
Configure alerting and notification mechanisms to proactively identify system issues and performance degradation
Analyze infrastructure performance metrics and execute optimization strategies
Troubleshoot complex system-level failures and coordinate resolution across cross-functional teams
Maintain system documentation, architectural diagrams, and runbooks
Participate 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 maintain cybersecurity posture through access controls, least-privilege principles, centralized authentication, and vendor recommendations
Perform other job-related duties assigned by the manager
No supervisory responsibilities

Requirements

What you’ll need

U.S. Citizenship required
Must be able to obtain and maintain a security clearance (if needed)
Bachelor's degree in a related field or equivalent experience in lieu of a degree
Minimum 6 years of relevant systems administration experience
Security+ CE certification or equivalent
Scripting experience in Python, PowerShell, Bash, or similar 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
Knowledge of 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 abilities
Excellent communication skills for technical and non-technical audiences
Ability to work in fast-paced environments and manage multiple priorities
Strong attention to detail and commitment to operational excellence
Preferred: familiarity 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: familiarity with DISA STIGs and CIS Benchmarks
Ability to regularly lift and/or move up to 30 pounds

Benefits

Comp & perks

Up to 20% of national travel is possible for this role
Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions
Equal Opportunity Employer