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Windows System Administrator, Sr.
Job Location:
Job Location:
Howard County, MD - USA
Monthly Salary:
Not provided by the employer
Monthly Salary:
Posted:
13 September 2026 (4 hours ago)
Posted:
Application Deadline:
11 December 2026
Application Deadline:
Vacancies:
1 Vacancy
Vacancies:
Job Summary
Unisity LLC is a Service-Disabled Veteran Owned Small Business providing expert services in the Information Technology fields. We pride ourselves on delivering what is promised as some would say we just do. We are highly-qualified self-driven professionals who work towards a common goal as a team leading when appropriate and following when needed.
Job Summary:
ASenior Windows System Administratorto join a high-performing Agile team operating within the Scaled Agile Framework (SAFe) in support of a complex fast-paced this role the selected candidate will provide daily systems administration and operations and maintenance support across multiple systems with a broad geographic footprint. Key responsibilities include responding to system engineering requests that support operational requirements as well as engineering deploying and sustaining new capabilities within the environment.
Primary Responsibilities:
The selected candidate will be responsible for monitoring test infrastructure systems applications and processes to ensure issues are identified tracked and resolved in a timely manner. This role also includes supporting server router and firewall configuration as well as performing security management and application performance optimization activities in an environment made up of VMware server hosts Windows and Linux guest servers and Virtual Desktop Infrastructure (VDI). Additional responsibilities include:
Preferred Qualifications:
Due to federal contract requirements United States Citizenship and position appropriate security clearance is required. (e.g. Active TS/SCI security clearance with customer appropriate polygraph).
Salary Range: Coming Soon (Annually)
Annual Compensation Figures listed for this position serve as a general guideline and are not a guarantee of compensation. Compensation will vary dependent upon factors including but not limited to: Government contract rates; education; relevant prior work experience knowledge skills and competencies; certifications and geographic location.
Benefits Package:
Unisity LLC believes in generously supporting employees as they prepare for retirement. The company automatically contributes an additional 12% of each employees gross compensation to the company 401k plan with no requirement for employee matching. All contributions are fully vested from day one ensuring immediate ownership of retirement funds.
Full-time employees have the option to participate in a variety of voluntary benefit plans including:
Unisity LLC is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race color religion sex sexual orientation gender identity national origin disability or status as a protected veteran.
Affirmative Action Statement:
Unisity LLC is committed to the principles of affirmative action in all hiring and employment for minorities women individuals with disabilities and protected veterans.
Accommodations:
Unisity LLC is committed to providing an inclusive and accessible hiring process. If you need any accommodations during the application or interview process please contact us at We are happy to provide reasonable accommodations to ensure equal access to all candidates.
Job Summary:
ASenior Windows System Administratorto join a high-performing Agile team operating within the Scaled Agile Framework (SAFe) in support of a complex fast-paced this role the selected candidate will provide daily systems administration and operations and maintenance support across multiple systems with a broad geographic footprint. Key responsibilities include responding to system engineering requests that support operational requirements as well as engineering deploying and sustaining new capabilities within the environment.
Primary Responsibilities:
The selected candidate will be responsible for monitoring test infrastructure systems applications and processes to ensure issues are identified tracked and resolved in a timely manner. This role also includes supporting server router and firewall configuration as well as performing security management and application performance optimization activities in an environment made up of VMware server hosts Windows and Linux guest servers and Virtual Desktop Infrastructure (VDI). Additional responsibilities include:
- Maintaining multiple virtual server clusters and addressing system scan findings vulnerability management patching and Active Directory configuration issues.
- Using enterprise monitoring tools to detect assess and respond to alerts.
- Providing technical support to partner workgroups on overlapping efforts while maintaining strong interdepartmental collaboration.
- Managing Information Assurance Vulnerability Alerts (IAVAs) and system security scanning in accordance with applicable System Security Plans ensuring vulnerabilities are identified and remediated quickly and accurately.
- Initiating IAVA responses and system security scans completing remediation actions deploying patches and security updates to designated sites and executing monthly security scans.
- Identifying and resolving hardware and software problems.
- Proactively notifying customers when test infrastructure delays may affect their ability to complete business functions on time and communicating system outages and publishing status updates to users as needed.
- Authoring and maintaining clear accurate and concise documentation.
- Responding to calls and emails in a timely and professional manner.
- Planning and implementing IT enhancements and supporting project-related work.
- Responding to system administration operations and maintenance issues on an on-call basis when required.
- Must have at least 7 years of Windows administration experience.
- Must have at least 7 years of experience in information security management with demonstrated expertise in security governance risk management compliance and operational security functions.
- Must have at least 5 years of experience with each of the following:
- Implementing and managing Windows Active Directory and DNS environments
- Creating and managing Group Policy Objects (GPOs)
- Microsoft SCCM
- Microsoft Exchange administration and Exchange Management Shell
- Must have experience with Windows Command Line PowerShell and PowerShell scripting.
- Strong understanding of advanced security protocols standards and information security principles is a must.
- Experience with software and security architectures.
- Hands-on experience with IAVA management.
- Hands-on experience supporting users optimizing system operations and monitoring enterprise IT systems.
- Commitment to best practices including compliance with maintenance windows and change control procedures.
- Familiarity with Windows and Linux operating systems VMware and networking technologies including switches routers LANs and cabling.
- Must have strong analytical skills attention to detail and the ability to work effectively both independently and as part of a team.
Preferred Qualifications:
- Bachelors degree in Computer Science Information Technology or a related technical field and 12 years of prior relevant experience.
- Experience documenting and supporting security accreditation and certification activities.
- Experience with network security technologies including multi-domain solutions PKI SSPs and vulnerability assessments.
- Experience with data center design and configuration including rack-and-stack power planning and equipment placement.
- Experience with VMware.
- Experience using automation tools such as Ansible or SaltStack.
- Experience serving in a System Administrator role supporting software configuration management and development environments.
Due to federal contract requirements United States Citizenship and position appropriate security clearance is required. (e.g. Active TS/SCI security clearance with customer appropriate polygraph).
Salary Range: Coming Soon (Annually)
Annual Compensation Figures listed for this position serve as a general guideline and are not a guarantee of compensation. Compensation will vary dependent upon factors including but not limited to: Government contract rates; education; relevant prior work experience knowledge skills and competencies; certifications and geographic location.
Benefits Package:
Unisity LLC believes in generously supporting employees as they prepare for retirement. The company automatically contributes an additional 12% of each employees gross compensation to the company 401k plan with no requirement for employee matching. All contributions are fully vested from day one ensuring immediate ownership of retirement funds.
Full-time employees have the option to participate in a variety of voluntary benefit plans including:
- A Choice of Medical Plan Options some with Health Savings Account (HSA)
- Vision and Dental
- Unisity LLC provides an additional 12% of employees gross compensation to be used for benefits any remaining funds are then forwarded to the employee as taxable income
- Life and AD&D Benefits (Company Paid)
- Short and Long-Term Disability (Company Paid)
Unisity LLC is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race color religion sex sexual orientation gender identity national origin disability or status as a protected veteran.
Affirmative Action Statement:
Unisity LLC is committed to the principles of affirmative action in all hiring and employment for minorities women individuals with disabilities and protected veterans.
Accommodations:
Unisity LLC is committed to providing an inclusive and accessible hiring process. If you need any accommodations during the application or interview process please contact us at We are happy to provide reasonable accommodations to ensure equal access to all candidates.
Required Experience:
Senior IC
