Sr. Systems Administrator

Job Title:

Sr. Systems Administrator

Job Location:

Manassas, VA
Eligibility/Clearance: US Citizen or Green Card Holder

JOB DESCRIPTION
We are seeking a skilled and experienced System Administrator to join
our team. The ideal candidate will manage and maintain our Microsoft
Windows systems, endpoint security, and cloud infrastructure. Here are
the key requirements and responsibilities for this role:

• Proficient in managing and maintaining Active Directory, including creating and managing security groups.
• Experienced in implementing and troubleshooting Group Policy Objects for efficient system configuration.
• Proficient in managing Windows Server Infrastructure (2016/2019/2022).
• Experience with Microsoft Office, Office
  365, Active Directory, File Clusters, and Print Servers.

• Thorough knowledge of conducting vulnerability assessments to identify and mitigate potential security risks.
• Familiar with security frameworks such as CIS and NIST guidelines, ensuring compliance with industry standards.
• Previous knowledge of implementation of Zero-Trust architecture.
• Implement and administrate endpoint security tools, including EDR solutions.

• Solid understanding and practical experience in utilizing Azure services for cloud-based solutions.
• Proficient in deploying and managing resources on the Azure platform.

• Skilled in virtualization technologies, including setup, configuration, and maintenance of virtual environments.
• Extensive experience in optimizing virtual resources to enhance overall system performance.

• Well-versed in asset management practices, including tracking, inventory, and lifecycle management of IT assets.
• Skilled in implementing efficient asset management systems for improved organizational efficiency.

• Experience interpreting, writing, and debugging Power Shell scripts for automation.

• Maintain Operating System baselines for Windows Servers and Workstations.
• Implement, install, configure, monitor, troubleshoot, and evaluate Microsoft Windows operating systems.

• Recommend and implement system enhancements to improve performance and reliability.
• Install, upgrade/patch, monitor, troubleshoot, and perform configuration management.

• Implement hardened settings to improve the security posture of endpoints.
• Restrict the use of local admin accounts and implement the least privilege principle.

• Provide support to technical staff in diagnosing and correcting system related failures.
• Determine logical solutions to complex system administration and application problems.

• Implement and manage disaster recovery strategies.
• Configure and maintain replication processes for critical systems.

• Bachelor's (BS) degree in computer science, management information systems, or a related field.
• Certification in a related field (Security +, MSA, MCSE) would be considered a plus.
• Microsoft Azure certification (AZ-900, AZ104) will be considered a plus.

• Good communication skills and a strong work ethic.
• Work as an adaptable team player.
• Working knowledge of CIS controls.
• General knowledge of Cloud technologies, such as Office 365

• 10 years of relevant experience with Microsoft Windows server operating systems, Active Directory, Group Policies, Cyber Security, and TCP/IP networking

Arena Technical Resources, LLC, (ATR) is an Equal Opportunity Employer (EOE) who will provide equal employment opportunity to employees and applicants for employment without regard to race, ethnicity, religion, color, sex, pregnancy, national origin, age, veteran status, ancestry, sexual orientation, gender identity or expression, marital status, family structure, genetic information, or mental or disability.