Remote Senior Windows Systems Engineer - AD & Security

DecisionPoint Corporation; United States; On-site; EUR 103,000 - 155,000; Full time

Job summary

DecisionPoint Corporation seeks an experienced Senior Windows Systems Administrator to serve as a technical SME for Windows Server, Active Directory, and IIS environments. You will maintain mission-critical systems, resolve complex production issues, and support virtualization while implementing security hardening and vulnerability remediation.

This remote role requires Top Secret clearance and deep expertise in DISA STIGs, RMF, and enterprise Windows security standards to ensure secure,

Qualifications

• Must hold an active Top Secret clearance.
• Bachelor’s degree in Computer Science, Information Technology, DevOps Engineering, or a related field.
• 10+ years of hands-on Windows Server administration experience.
• Expert-level Windows Server experience in enterprise or mission-critical environments.
• Strong hands-on experience with Active Directory, Group Policy, DNS, authentication, and domain services.
• Strong experience administering and troubleshooting Microsoft IIS.
• Advanced Windows troubleshooting skills including Event Viewer, services, permissions, performance, networking, and application issues.
• Experience with DISA STIG, DoD RMF, Windows security hardening, and vulnerability remediation.
• Strong understanding of NTFS permissions, certificates, SSL/TLS, Windows networking, and enterprise authentication.

Responsibilities

• Serve as the technical SME for Microsoft Windows Server, Active Directory, and IIS environments.
• Administer, configure, patch, upgrade, monitor, and troubleshoot enterprise Windows Server systems.
• Manage and support Active Directory, including users, groups, OUs, Group Policy, DNS integration, trusts, and domain services.
• Install, configure, secure, tune, and troubleshoot Microsoft IIS web server environments.
• Perform advanced troubleshooting across Windows services, event logs, authentication, permissions, storage, CPU, memory, networking, and application connectivity.
• Apply DISA STIGs and harden Windows systems to meet DoD RMF security requirements.
• Manage Group Policy Objects (GPOs) and enterprise Windows security configurations.
• Perform root-cause analysis for complex production issues and system outages.
• Support virtualized Windows environments across development, test, and production.
• Maintain technical documentation, SOPs, system configurations, and operational procedures.
• Participate in production support and on‑call rotations as required.

Skills

Windows Server administration

Active Directory

Group Policy

DNS

IIS

Security hardening

Vulnerability remediation

DISA STIGs

RMF

enterprise Windows security

Education

Bachelor's degree in Computer Science / Information Technology / DevOps Engineering

Job description

DecisionPoint Corporation seeks an experienced Senior Windows Systems Administrator to serve as a technical SME for Windows Server, Active Directory, and IIS environments. You will maintain mission-critical systems, resolve complex production issues, and support virtualization while implementing security hardening and vulnerability remediation.

This remote role requires Top Secret clearance and deep expertise in DISA STIGs, RMF, and enterprise Windows security standards to ensure secure,