Sr. System Administrator

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Knowledge, Skills, and Abilities Required:

• Strong communication skills, strong critical thinking and problem-solving skills; self-motivated with ability to effectively prioritize multiple projects; ability to work with people in a team environment and deal effectively with changing project priorities.
• Ability to manage time, make sound decisions, take independent action, analyze problems and provide focused solutions.
• High degree of attention to detail.
• Must have active in-scope SECRET clearance and be able to obtain a TOP-SECRET clearance and maintain access to Sensitive Compartmented Information (SCI) and/or any necessary Special Access Programs (SAP).
• DoDM 8140/DoD 8570 approved (Technician Level 2-3) certification required within 6 months of hire.

Education and Experience

• Bachelor's degree in IT, Computer Science, Cybersecurity, or related field; Master's degree preferred.
• Minimum 5-7 years of experience as a Systems Administrator or similar role.
• Expertise with Microsoft Windows Server (2012R2-2025) and Active Directory administration.
• Strong proficiency with PowerShell for automation and system management.
• Experience managing enterprise GPOs, DNS, DHCP, ADFS, ADMT, and Microsoft infrastructure services.
• Understanding of cybersecurity frameworks (DoD STIGs, Zero Trust, etc.).
• Experience with Linux administration, automation tools, and Ansible playbooks.
• Strong troubleshooting skills across servers, networks, storage, and applications.

Preferred Experience

• Experience with Microsoft Azure and secure DoD?aligned cloud deployments.
• Familiarity with Cisco Catalyst, SD?WAN, and Palo Alto.
• Hands-on experience with Nutanix AHV and Prism Central.

#LI-ACI

#LI-Onsite

","jobbenefit":"

• Medical, Dental & Vision Insurance Coverage
• Life/ADD & Short/Long Term Disability Insurance
• 401(k) Savings Plan
• Employee Stock Purchase Plan (ESPP)
• Paid Time-Off (PTO)
• Holidays
• Education Reimbursement

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General Job Summary

This role is responsible for managing complex Windows and Linux environments, implementing cybersecurity best practices, and ensuring reliability and security across networks. The ideal candidate has deep technical expertise, experience working in regulated or high-security environments, and a strong background in Active Directory, automation, and enterprise systems management. This is an on-site position.

Essential Job Functions

• Administer and maintain Active Directory environments, including users, groups, Group Policy Objects, and Advanced Group Policy Management.
• Manage and configure AD Certificate Services (AD CS), certificate templates, and certificate authorities.
• Ensure compliance with security standards and policies.
• Manage Windows Server environments including patching and updates.
• Troubleshoot complex system, application, and networking issues across distributed environments.
• Collaborate with vendors, customers, and internal stakeholders to design and implement technical solutions.
• Support IT operations including imaging, automation, and system configuration using MDT, WDS, PowerShell, and Ansible.
• Implement and maintain cybersecurity controls per ISSM and ISSO guidance.
• Support Linux server environments (RHEL, Rocky, CentOS, Ubuntu), including shell scripting and automation.
• Manage backup solutions.
• Support networking environments using Cisco technologies.

Other Job Functions

• Other duties as assigned.

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