Senior Windows SysAdmin – Secure, On‑Site (TS/SCI)

Sunayu Llc; Annapolis (MD); On-site; USD 110,000 - 165,000; Full time

Benefits offered by this job

3 Medical Plan Options

Dental and Vision

FSA, DCFSA, HSA

Life/AD&D Insurance

Short-Term & Long-Term Disability

Employee Assistance Program (EAP)

Training and Educational Assistance

Paid Time Off (PTO)

11 Federal holidays

401k plan with up to a 6% match

Job summary

Sunayu, LLC seeks a Senior Windows System Administrator to join a high‑performing Agile team under SAFe. You will provide daily systems administration and O&M across multiple systems with a broad geographic footprint, deploying new capabilities and sustaining operations.

The role emphasizes monitoring, security management, and collaboration while supporting VMware, Windows, Linux, and VDI environments, with on‑call duties as required.

Qualifications

• 7+ years of Windows administration experience.
• 7+ years in information security governance, risk management, compliance, and operational security functions.
• 5+ years in Windows AD/DNS, GPOs, SCCM, and Exchange administration.
• Proficient in Windows Command Line, PowerShell, and scripting.
• Strong understanding of security protocols, standards, and information security principles.
• Hands-on experience with IAVA management and security scanning.
• Experience with VMware, networking technologies (switches, routers, LANs).
• Ability to work independently and in teams, with strong analytical skills.

Responsibilities

• Monitor test infrastructure systems, applications, and processes; identify and resolve issues.
• Support server, router, firewall configuration and security management; optimize performance on VMware and Windows/Linux VMs/VDI.
• Manage IAVAs and vulnerability scanning; apply patches and remediation actions.
• Coordinate with partner workgroups; maintain interdepartmental collaboration.
• Publish status updates to users; communicate outages and delays.
• Author and maintain concise documentation; respond to calls and emails promptly.
• Plan IT enhancements and support project-related work; oncall support as needed.

Education

Bachelor's degree in Computer Science or related field

Tools

VMware

SCCM

Exchange

Ansible

SaltStack

Job description

Sunayu, LLC seeks a Senior Windows System Administrator to join a high‑performing Agile team under SAFe. You will provide daily systems administration and O&M across multiple systems with a broad geographic footprint, deploying new capabilities and sustaining operations.

The role emphasizes monitoring, security management, and collaboration while supporting VMware, Windows, Linux, and VDI environments, with on‑call duties as required.