Senior Systems Administrator / Enterprise Windows Administration Support Services (EWASS) / Secret or Top-Secret

S2i2-Inc; Fort Belvoir (VA); On-site; USD 100,000 - 115,000; Full time

Job summary

S2i2 is seeking a Senior Systems Administrator to join our team supporting the Defense Logistics Agency's enterprise Windows environments. You will lead daily operations, drive process improvements, and mentor junior staff across on-site locations.

The role requires extensive Windows Server administration, Active Directory and Group Policy management, and expertise in vulnerability management, STIG and ACAS remediation, and PowerShell automation. On-site work at Fort Belvoir, VA, and other sites.

Qualifications

• Bachelor's degree in a technical discipline required.
• DoD 8570 Baseline Certification at IAT II or IAT III.
• 10+ years IT experience; 4+ years hands-on troubleshooting and configs.

Responsibilities

• Oversee Windows systems, security, and network performance for DLA.
• Plan, install, configure, maintain, and optimize network software and links.
• Manage AD and Group Policy; monitor performance and automate with PowerShell.
• Lead and mentor system admins; drive automation and process improvements.
• Lead vulnerability management, patches, STIG/ACAS remediation, and operational support.

Skills

Windows Server administration

PowerShell automation

Vulnerability management

Active Directory

Education

Bachelor's degree in Computer Science/Engineering

Tools

ACAS

STIG

Job description

Job Title: Senior Systems Administrator / Enterprise Windows Administration Support Services (EWASS)

Quantity: 5

Job Location(s): On-site - one position at each of the following sites:

• Columbus, OH

• Battle Creek, MI

• Richmond, VA

• Ft. Belvoir, VA

• New Cumberland, PA

Work Schedule: On-site, Monday through Friday

Clearance: Active Secret or Top-Secret or TS/SCI

Salary Range: $100k-$115K (based on experience

Application Deadline: October 31, 2026

Description:

We are seeking an experienced and motivated Senior Systems Administrator to join our team. The ideal candidate will demonstrate strong leadership skills, technical expertise, and a commitment to operational excellence.

Join a high-impact team responsible for optimizing and securing the Defense Logistics Agency's enterprise Windows environments. As a Senior Systems Administrator, you will lead daily operations, drive process improvements, and help shape the future of DLA's mission-critical IT infrastructure.

Responsibilities

• Oversee the stability, security, and performance of DLA's Windows systems and network connections.

• Plan, develop, install, configure, maintain, and optimize network software and communication links.

• Organize and manage information management systems, resolve end-user software and connectivity issues, and conduct capacity and performance analysis with actionable recommendations.

• Drive team efficiency through automation, process refinement, and targeted training. Provide comprehensive support for operational systems, including maintenance, upgrades, and new installations across multiple locations.

• Mentor and lead system administrators, optimizing system resources and user support.

• Apply advanced knowledge of application networking, load balancing, and fault tolerance while spearheading vulnerability management initiatives.

• Lead daily Windows Server administration across NIPR and SIPR networks - both on-premises and on-the cloud.
• Responsibilities include; patching, STIG and ACAS remediation, Active Directory and Group Policy management, performance monitoring, PowerShell automation, and vulnerability management. Supervise and mentor a team of system administrators to ensure operational excellence.

Required Qualifications:

• Minimum ten (10) years of progressive, specialized IT experience in Information Processing, including a range of hardware and software solutions

• At least four (4) years of direct, hands-on experience installing, configuring, maintaining, and troubleshooting software

• Bachelor's degree in a technical discipline (e.g., Computer Science, Information Systems, Engineering)

DoD Approved 8570 Baseline Certification at IAT Level II – One (1) of the Following:

(ex., CompTIA Security+ CE, CySA+, GIAC GSEC, GICSP, EC-Council CND, ISC2 SSCP, Cisco CCNA Security) or IAT Level III (ex., ISC2 CISSP or Associate, ISACA CISA, CompTIA CASP+ CE, GIAC GCED, GIAC GCIH, Cisco CCNP Security, ISC2 CCSP)

Relevant certification from a nationally recognized technical authority – One (1) of the Following:

(ex., Microsoft Certified: Azure Security Engineer Associate, Azure Solutions Architect Expert, Okta Certified Administrator, ISA CCST Level I, CISA ICS Cybersecurity, Infoblox CDCA, GIAC GCWN, MCSE: Cloud Platform and Infrastructure, Windows Server Hybrid Administrator Associate, Oracle Cloud Infrastructure Foundations Associate, Microsoft 365 Messaging Administrator Associate, AWS Certified Security Specialty, AWS Certified SysOps Administrator Associate, AWS Certified Solutions Architect Professional or Associate, Microsoft Certified Azure Administrator Associate)

About S2i2

S2i2 is a growing company with a supportive and inclusive culture and many opportunities for professional development and growth. We have created a supportive, family-like work environment where contributions are recognized. Regular company updates and open lines of communication with leadership fosters collaboration within the company.

We are proud to include:

Support to achieve professional certifications and degrees

Leadership that is accessible to all employees

Regular company updates

Client networking social engagements

Monthly team-building activities (past examples: Top Golf)

Supporting our community - including veterans

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, disability, age, sexual orientation, gender identity, national origin, veteran status, or genetic information.