Endpoint Systems Administrator

HII's Mission Technologies division•Springfield, VA

1d•$61,116 - $125,000

About The Position

This position is part of HII’s Mission Technologies Cyber and Intelligence division, supporting enterprise-level security and modernization across IT infrastructure, cybersecurity, physical facilities, and personnel operations. The selected candidate will contribute to a high-impact government program focused on enhancing and securing mission-critical systems and environments. An active TS/SCI security clearance is required, and the candidate must be willing to obtain and maintain a CI poly. The Endpoint Systems Administrator develops and maintains operating system images and manages the lifecycle of desktop OS platforms and enterprise endpoint software. The role leads patch management, supports security compliance and remediation, provides advanced Tier 3 support, monitors endpoint performance and compliance, and contributes to endpoint architecture planning and modernization. The posting lists three levels: Endpoint Systems Administrator I ($65,000–$85,000), II ($80,000–$105,000), and III ($100,000–$125,000). The requisition also lists an anticipated salary range of $61,116–$125,000. The role is full-time, salaried, and exempt, with 0–10% required travel.

Requirements

At least 5 years of progressively responsible endpoint administration experience.
Demonstrated proficiency deploying, configuring, and managing Windows or ThinLinux end-client operating system solutions.
Demonstrated proficiency installing, configuring, monitoring, and troubleshooting Microsoft and third-party enterprise applications across large endpoint environments.
Demonstrated proficiency performing comprehensive operating system and application patching via MECM/SCCM, including update research, controlled testing, production deployment, troubleshooting, and rollback.
Demonstrated proficiency applying, validating, and maintaining endpoint security configurations based on SRGs and STIGs.
Demonstrated proficiency managing endpoint configuration, compliance, and automation with MECM/SCCM, Intune, or similar enterprise tools.
Demonstrated proficiency diagnosing and resolving escalated endpoint issues using advanced knowledge of operating system internals, application behavior, and configuration dependencies.
Demonstrated proficiency using PowerShell or similar scripting tools for remediation, automation, configuration-baseline enforcement, and patch-state correction.
Active TS/SCI security clearance and ability and willingness to obtain and maintain a CI poly.
Must meet DoD 8140/CSWF requirements for 451-Intermediate or be willing to obtain the appropriate credential within 6 months.
For System Administrator I: 5 or more years of experience and a high school diploma or equivalent.
For System Administrator II: 5 or more years of experience and a bachelor’s degree in a related field, or 7 or more years of experience and a high school diploma or equivalent.
For System Administrator III: 6 or more years of experience and a bachelor’s degree in a related field, or 5 or more years of experience and a master’s degree in a related field, or 7 or more years of experience and a high school diploma or equivalent.

Nice To Haves

Formal training or vendor certifications related to operating system administration or MECM/SCCM.
Experience automating endpoint management tasks using PowerShell or similar scripting tools.
Familiarity with modern endpoint management solutions such as Intune or Autopilot.

Responsibilities

Develop, maintain, and optimize standard operating system images for enterprise endpoint devices.
Own the desktop operating system lifecycle, including design, configuration, testing, release, documentation, and continuous improvement.
Manage deployment, maintenance, and version control for enterprise applications and core endpoint software suites.
Lead operating system, security update, and application patch management, ensuring timely, compliant, and communicated release cycles.
Evaluate and integrate tools, technologies, and methods to improve endpoint stability, security, and performance.
Collaborate with cybersecurity teams on security-policy compliance, vulnerability remediation, and hardening standards.
Create and maintain technical documentation, configuration baselines, and operational procedures.
Provide Tier 3 support for escalated endpoint issues requiring advanced technical expertise.
Monitor system performance, reliability, and patch compliance using enterprise management tools.
Participate in strategic planning for endpoint technology architecture and long-term modernization.
Perform endpoint deployment, configuration, monitoring, and troubleshooting for Windows or ThinLinux client operating systems.
Install, configure, monitor, and troubleshoot Microsoft and third-party enterprise applications across large endpoint environments.
Perform operating system and application patching with MECM/SCCM, including researching and testing updates, production deployment, failure troubleshooting, and rollback procedures.
Apply, validate, and maintain endpoint security configurations based on SRGs and STIGs.
Manage endpoint configuration, compliance, and automation using MECM/SCCM, Intune, or similar tools.
Use PowerShell or similar scripting tools for post-deployment remediation, cleanup patching, automation, baseline enforcement, and resolving inconsistent patch states.

Benefits

Medical insurance plan choices
Dental insurance
Vision insurance
Wellness resources
Employee assistance programs
401(k) savings plan options
Financial planning tools
Life insurance
Employee discounts
Paid holidays
Paid time off
Tuition reimbursement
Early childhood and post-secondary education scholarships
Competitive benefits
Educational and training programs for continual career growth
Occasional bonus or other non-recurrent compensation for qualified positions, if applicable