Position is contingent upon contract award and funding.

Sev1Tech is looking for a Senior Windows Administrator supporting the ALTESS Windows team. This is currently a mixed and growing environment of Windows 2019 and Windows 2022.

The responsibilities include but are not limited to:

• Work with the existing Windows team to manage, maintain, deploy, troubleshoot, and support servers for a mixed customer environment
• Plan, execute, and implement new system Hardware and Software and create and maintain team technical instructions, operating procedures and policies as needed
• Be adept at monitoring and tuning system performance, ongoing operation of the servers, hardening of the servers and reporting of the overall security and operational status
• Recommend improvements to the enterprise and manage new SW/HW integrations when required while also providing utilization reports using existing tools to identify problems and corrective actions as needed
• Excellent communication and team skills
• Provide support toward the lifecycle of a mixed environment of vendor equipment in the data-center to include firmware version control and periodic preventive maintenance
• Ability to recommend, demonstrate, and implement technologies to help expand, upgrade, and increase efficiencies to the current environment

• Active DoD Secret Security Clearance
• CompTIA Security+
• Computing Environment (CE) Certification (i.e., Microsoft Certified Solutions Expert (MCSE), Server+, Cisco Certified Network Associate (CCNA), RedHat, Palo, etc., can be waived for 30 days after project join date
• Experience in Computer Science or IT
• Minimum five years' experience as a Windows Systems Administrator or Engineer with three or more years’ experience in automating assigned tasks utilizing powershell
• Minimum five years’ installing, configuration, maintaining, and troubleshooting complex applications and websites (Internet Information Services (IIS)), Apache, etc.)
• Minimum five years’ experience working in an environment with complex networking solutions with senior level fundamental knowledge in networking principles, Transmission Control Protocol/Internet Protocol (TCP/IP), Domain Name System (DNS), Dynamic Host Configuration Protocol (DHCP), Simple Mail Transfer Protocol (SMTP), Simple Network Management Protocol (SNMP)
• Minimum five years’ experience managing enterprise level Active Directory Structures
• Minimum five years’ experience creating and maintaining complex MS Group Policy implementations
• Minimum five years' experience creating, maintaining, following Standard Operating Procedures for repeatable processes, disaster recovery, and common problem resolution
• Strong interpersonal skills and willing to be a team player

• Bachelor's degree in computer science or equivalent years of experience
• Three or more years’ experience supporting Cybersecurity patch management and Security Technical Implementation Guides (STIG), SRG, RMF, SCA-V, and Cyber Operational Readiness Assessments (CORA)

Founded in 2010 and recently acquired by ERT in early 2026, Sev1Tech, an ERT Company provides IT, engineering, and program management solutions delivery to critical missions across Federal and Commercial Clients. With its acquisition by ERT, Sev1Tech expanded its ability to offer secure, mission-aligned digital solutions to support modernization, resilience and operational effectiveness for government customers operating in highly regulated mission environments. ERT and Sev1Tech together become a fully diversified engineering and federal technology solutions firm with broad reach into space, civilian, and defense markets.

Please apply directly at: https://careers-sev1tech.icims.com. For questions or to submit a referral, please contact: recruiting@sev1tech.com

Sev1Tech is an Equal Opportunity and Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.