Sr. Systems Administrator (Windows)


S. Systems Administrator (Windows)

Direct Hire – USC/GC Holders can only be considered at this time

Reston, VA (Remote until it is safe to return to an office setting, at which time this position will need to sit onsite in Reston, VA)



Tier4 Group is hiring for a Sr. Systems Administrator (Windows) for our client, a leader in the Financial Services space. The Sr. Systems Administrator (Windows) is accountable for installation, maintenance, security, configuration, and troubleshooting of Windows and VMware-based hardware and software for the company’s IT Infrastructure and Operations environment. The Sr. Systems Administrator (Windows) is an intermediary between Windows Administrators and Systems Engineers, and provides advanced technical knowledge, support, and leadership for the Windows Administrator team.



·         Plan and maintain a secure, effective, and efficient computing environment.

·         Administer and maintain server systems, including operating procedures and security policy compliance, as they relate to the Windows platform and related physical and virtual infrastructure.

·         Provide leadership and serve as Technical Lead on projects involving IT Operations or Infrastructure change.

·         Responsible for Level III support and serves as the escalation point for Windows Administrators.

·         Provide support to other teams in the organization as an ITIO subject matter expert.

·         Responsible for working under the company’s procedures for change control; responsible for the implementation and compliance of recommendations by IT Security, internal and external audit as it relates to the company’s systems.

·         Research and evaluate hardware and software products that will best meet the needs of the company; keep abreast of software revisions for installed applications and recommend upgrades as necessary.

·         Serve as backup for Windows Administrators in support coverage and core tasks; also serve as a backup and escalation point for Technical Administrators in Helpdesk support and customer service.

·         Maintain a secure Windows computing environment to include adherence to the company’s IT Security Policy, drafting and adherence to server procedures, and participation in audits as required.

·         Responsible for security event logging and monitoring.

·         Provide training to users individually and collectively regarding the effective use of network resources, including end-user tools and application software.

·         Develop and maintain accurate and up-to-date user and system documentation to include, but not limited to, operational procedures, server and cluster diagrams, server hardware inventory, COTS inventory, and preferred vendor contacts.

·         Assist management in preparing policies and procedures that will contribute to effective IT operations.

·         Participate in monthly patching process for Windows systems.

·         Support business continuity infrastructure and procedures.

·         Train team members on new/updated policies and procedures.

·         Maintain and execute the backup and recovery procedures for the Server, Storage, and Virtualization infrastructure; participate in business continuity activities and exercises.

·         Perform trend analysis, capacity, and availability management, and developing and reporting metrics for management regarding the health of the infrastructure.

·         Support COTS applications running on the Windows platform.

·         Participate in on-call rotation with Windows Administrators.

·         Support the OF’s diversity and inclusion strategy by following policies and procedures that ensure opportunities for employees and diverse business partners.

·         Assist with other job duties as assigned.



·         Minimum of five (5) years of administration experience with Windows-based desktops and servers, Microsoft 365, Active Directory, and Group Policy.

·         Minimum of three (3) years of experience with server and desktop virtualization, specifically VMware. 

·         The candidate should have prior administration experience with some or all of the following Microsoft enterprise-level products: Microsoft Azure, Sharepoint, SQL, System Center, WSUS, 365.

·         B.S. in Computer Science or related field preferred.

·         Related Microsoft certification is preferred.

·         VMware Certified Professional preferred.

·         EMC Avamar and Recoverpoint, or knowledge of similar enterprise-level replication and backup technology is a plus.

·         Powershell scripting knowledge is a plus.

·         Ansible knowledge is a plus.

·         Ability to initiate and complete assignments accurately and on time, with minimal supervision.

·         Ability to communicate well, both orally and in writing.

·         Must be organized and detail oriented.

·         Ability to listen and integrate ideas from diverse groups of individuals, build and maintain respectful relationships, collaborate with others, and resolve conflicts constructively.

·         Proof of eligibility to work in the United States.


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Contact Info

2600 Abbey Court
Alpharetta, Georgia 30004