Junior Microsoft Systems Administrator

Position Title: Junior Microsoft Systems Administrator (Windows / NIST 800-53 / Cybersecurity)

Location: Montgomery, Alabama

Position Status: Contract
Pay Rate: $35/hr on W2

Position Description:

We are seeking a Junior Microsoft Systems Administrator with a strong foundation in Windows Server administration and cybersecurity compliance to support enterprise environments aligned with NIST SP 800-53 standards.

This role is ideal for candidates who are passionate about system hardening, endpoint security, and compliance frameworks, and want to grow within a security-focused, mission-driven environment. You will play a key role in securing Windows infrastructure through baseline configuration, access control enforcement, and continuous monitoring.

Key Responsibilities:

• Administer, configure, patch, and harden Windows Server (2019/2022) and Windows 10/11 systems in compliance with NIST SP 800-53 Rev. 5
• Implement and maintain security controls across key domains: Access Control (AC), Configuration Management (CM), Identification & Authentication (IA), Audit & Accountability (AU), System Protection (SC)
• Manage and enforce security configurations using Group Policy (GPO), Microsoft Intune, and Endpoint Manager (MEM)
• Apply system hardening techniques including:
  • Least privilege access and privileged account management (PAM)
  • Multi-factor authentication (MFA)
  • Firewall configuration and endpoint protection
  • BitLocker encryption and secure configurations
  • Application control (AppLocker) and service minimization
• Support Active Directory, Azure AD (Entra ID), Microsoft Defender for Endpoint, and Azure Policy
• Perform vulnerability assessments, compliance scans (e.g., NessTenable), and remediation activities
• Maintain documentation for compliance including System Security Plans (SSP), POA&Ms, and audit artifacts
• Contribute to maintaining continuous ATO (Authority to Operate) readiness

Required Skills/Education:

• 2+ years of experience in Windows Systems Administration (Server & Desktop) in enterprise environments
• Strong hands-on experience with:
  • Active Directory, Group Policy, PowerShell scripting
  • SCCM/MECM, Microsoft Intune, Microsoft Defender suite
• Working knowledge of NIST SP 800-53 security controls and compliance frameworks
• Experience with system hardening, configuration baselines, and least privilege principles
• Familiarity with vulnerability management tools (Nessus, Tenable, or similar)
• Ability to automate tasks and compliance checks using PowerShell
• Bachelor s degree in Computer Science, Information Technology, Cybersecurity, or equivalent experience

Preferred Skills:

• Certifications such as:
  • Microsoft Certified: Windows Server Hybrid Administrator Associate or Endpoint Administrator
  • CompTIA Security+ or equivalent cybersecurity certification
• Hands-on experience with:
  • Azure AD (Entra ID), Microsoft Defender for Endpoint, Azure Policy
  • Compliance frameworks such as NIST 800-171, CMMC, or FISMA

Why Join This Opportunity?

• Work on high-impact, security-driven projects supporting federal environments
• Gain hands-on experience with modern Microsoft security tools and cloud-integrated infrastructure
• Collaborate with experienced professionals in cybersecurity and systems engineering
• Clear path for career growth in security and cloud technologies

About Seneca Resources

At Seneca Resources, we are more than just a staffing and consulting firm we are a trusted career partner. With offices across the U.S. and clients ranging from Fortune 500 companies to government organizations, we provide opportunities that help professionals grow their careers while making an impact.

When you work with Seneca, you re choosing a company that invests in your success, celebrates your achievements, and connects you to meaningful work with leading organizations nationwide. We take the time to understand your goals and match you with roles that align with your skills and career path.

Our consultants and contractors enjoy competitive pay, comprehensive health, dental, and vision coverage, 401(k) retirement plans, and the support of a dedicated team who will advocate for you every step of the way.

Seneca Resources is proud to be an Equal Opportunity Employer, committed to fostering a diverse and inclusive workplace where all qualified individuals are encouraged to apply.