Senior Systems Administrator

TechFlow, Inc.

Senior Systems Administrator at TechFlow responsible for maintaining enterprise IT infrastructure supporting DOD program. Collaborating with teams to ensure stable and secure environments in a hybrid setup.

Posted 7/20/2026full-timeArlington • Virginia • 🇺🇸 United StatesSenior💰 $75,000 - $85,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in systems administration, including Windows and Linux server management, troubleshooting complex technical issues, and maintaining high-availability IT infrastructure. Proficient in system monitoring, patch management, and disaster recovery planning while ensuring compliance with security requirements.

Highest-signal resume keywords

Systems AdministrationWindows Server AdministrationLinux Server AdministrationTroubleshooting MethodologiesPublic Trust Security Clearance

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

System MonitoringPatch ManagementBackup SolutionsPerformance OptimizationUser Account ManagementConfiguration ManagementTechnical DocumentationDisaster Recovery PlanningDebugging ToolsOperational Documentation

Soft Skills

Analytical SkillsOrganizational SkillsProblem-Solving SkillsWritten CommunicationVerbal Communication

Industry Keywords

Enterprise IT InfrastructureHigh-Volume EnvironmentsHigh-Availability EnvironmentsCybersecurity ComplianceGovernment Security Requirements

Tech Stack

Tools & technologies

Cyber SecurityLinux

About the role

Key responsibilities & impact

Administer, maintain, and support enterprise servers, operating systems, virtual environments, and associated infrastructure supporting the customers platform.
Perform routine system administration tasks, including user account management, system monitoring, patch management, backups, and performance tuning.
Maintain accurate system administration logs, operational documentation, and configuration records.
Monitor system health, identify performance issues, and implement corrective actions to maximize system availability and efficiency.
Troubleshoot and resolve complex hardware, software, operating system, network, and application issues in high-volume, high-availability environments.
Utilize established debugging tools, protocols, and diagnostic processes to isolate and resolve technical problems.
Respond to customer-reported incidents and service requests, providing timely resolution and effective communication throughout the support process.
Collaborate with cybersecurity personnel to implement security controls, apply security patches, and maintain compliance with government security requirements.
Support system upgrades, software deployments, maintenance activities, and infrastructure modernization initiatives.
Assist with disaster recovery planning, backup validation, and system restoration activities.
Develop and maintain technical documentation, standard operating procedures, and configuration management records.
Participate in after-hours maintenance windows and provide on-call support as required.

Requirements

What you’ll need

Bachelor's degree in Information Technology, Computer Science, Information Systems, or a related technical discipline.
Minimum of 6 years of progressively responsible experience in systems administration.
Experience conducting routine system administration activities and maintaining detailed system administration logs.
Experience administering and troubleshooting enterprise IT infrastructure supporting high-volume, high-availability environments.
Demonstrated ability to diagnose and resolve complex technical issues across servers, operating systems, and supporting infrastructure.
Experience utilizing system debugging tools, troubleshooting methodologies, and diagnostic processes.
Strong understanding of Windows and/or Linux server administration.
Experience with system monitoring, patch management, backup solutions, and performance optimization.
Excellent analytical, organizational, and problem-solving skills.
Strong written and verbal communication skills with the ability to interact effectively with technical and non-technical stakeholders.
Ability to obtain Public Trust Security Clearance.

Benefits

Comp & perks

Employee stock ownership plan (ESOP) – Pride in being an employee-owner and annual employer contribution (per plan guidelines)
401k plan with Roth option.
Eligibility for an employer match.
Immediate vesting
Paid time off
Holidays – 11 paid holidays per year
Comprehensive medical, dental, and vision plans
Company-paid Life & AD&D insurance plan
Employee Assistance Program
Wellness Resources
Company-paid training and development program
Voluntary benefits include:
Life & AD&D Insurance for employee, spouse, and children
Short-term and long-term disability (per plan guidelines)
Legal Shield and Identity Theft protection plans
Pet Insurance