System & Network Administrator (Junior)

Alliance Cyber; Merritt Island (FL); On-site; USD 55,000 - 75,000; Full time

Job summary

Alliance Cyber is seeking a System & Network Administrator (Junior) to provide on-site IT support across secured environments. You will ensure availability, security, and performance of enterprise IT systems while supporting daily operations and cybersecurity initiatives.

Qualifications include an associate degree in IT or related field with 2+ years of experience; bachelor’s preferred. Proficiency in Active Directory, PowerShell, Windows Server, and M365 is expected.

Qualifications

• Associate degree in IT or related field; 2+ years of system/network support; Bachelor’s preferred.
• Experience with Windows/Linux system administration and security baselines.
• Familiarity with RMF, NIST SP 800-171, and DoD/STIG requirements.

Responsibilities

• Provide daily end-user support and deskside help for managed endpoints.
• Install, patch, and harden Windows/Linux systems per DISA STIGs.
• Support network devices and perform basic configuration changes.
• Implement security patches aligning with RMF and collect audit artifacts.
• Maintain system logs, tickets, and documentation.

Skills

Customer service

Attention to detail

Analytical thinking

Communication skills

Independent work

Teamwork

Education

Associate degree in IT or related field

Bachelor’s degree preferred

Tools

Active Directory

PowerShell

Windows Server

M365 administration

Veeam

Nessus

Sentinel

SIEM platforms

Job description

Location: On-site – Cape Canaveral, Florida

Employment Type: Full-Time

Security Clearance: Active Top Secret or eligibility required

Certifications: DoD 8570 IAT Level II (Security+, CySA+, CASP+, or CISSP); Computing Environment certification (Windows Server, Network+, or Azure Administrator preferred)

About the Role

Alliance Cyber is seeking a motivated System & Network Administrator (Junior) to provide full-time, on-site IT support and system administration across multiple secured environments. The Administrator will ensure the availability, security, and performance of enterprise IT systems while supporting day-to-day operations, maintenance activities, and cybersecurity initiatives.

Key Responsibilities

End-User Support & Operations

• oProvide daily help desk and deskside support for users and managed endpoints.
• oResolve hardware, software, and network incidents and coordinate Tier 3 escalations.
• oMaintain user accounts, permissions, and role-based access controls via Active Directory and Group Policy.

System & Network Administration

• oInstall, configure, patch, and harden Windows and Linux systems in accordance with DISA STIGs and DoD security baselines.
• oManage server and desktop builds, scheduled backups, and quarterly restore tests.
• oSupport network infrastructure devices (switches, routers, firewalls) and perform basic configuration changes under supervision.

Cybersecurity & Compliance Support

• oImplement security patches and updates in alignment with RMF controls and Continuous Monitoring requirements.
• oAssist with vulnerability scanning, POA&M remediation, and audit artifact collection.
• oEnsure all IT assets comply with NIST SP 800-171 and organizational cybersecurity standards.
• oManage classified and unclassified media deliveries and chain-of-custody documentation.
• oPerform database and file system maintenance and support data integrity checks.
• oPackage and document secure deliverables in accordance with media handling procedures.

Documentation & Reporting

• oMaintain system logs, user support tickets, and configuration records.
• oContribute to Continuous Monitoring and Backup Verification reports.
• oSupport policy reviews, SOP updates, and enhancement recommendations.

Qualifications

Education & Experience:

• Associate degree in IT or related field and 2+ years of system/network support experience; Bachelor’s preferred.

Technical Skills:

• oProficiency in Active Directory, PowerShell, Windows Server, and M365 administration.
• oUnderstanding of network fundamentals (TCP/IP, DNS, DHCP, VLANs).
• oExperience with backup software ("e.g., Veeam") and security tools ("e.g., Nessus, Sentinel, SIEM platforms").
• oFamiliarity with NIST SP 800-171, DISA STIGs, and RMF principles.

Soft Skills:

• Strong customer service, attention to detail, analytical thinking, and communication skills. Ability to work both independently and collaboratively.

About Alliance Cyber

Alliance Cyber is a Service-Disabled Veteran-Owned Small Business (SDVOSB) based on Florida’s Space Coast, delivering tailored cybersecurity, IT managed services, and compliance solutions to government and commercial clients. Our team combines deep technical expertise with a mission-driven culture focused on protection, innovation, and trust. We value professional growth, technical excellence, and community impact — empowering our employees to thrive while supporting clients’ most critical systems and data.