What are the responsibilities and job description for the Systems Administrator position at Vatn Systems?
Position Overview
The Network Administrator is a foundational role responsible for designing, deploying,
managing, and securing the organization’s network infrastructure in a compliance-driven defense
contracting environment. This individual will assist the IT and Security Director as the primary
technical authority for all network operations, cloud service integrations, and IT procurement
activities, with a strong emphasis on building a scalable architecture compliance and information
protection across the enterprise.
The ideal candidate brings hands-on experience with Palo Alto Networks firewalls and Ubiquiti
networking hardware, deep familiarity with NIST security controls, and the strategic mindset to
grow a network from a startup footprint to an enterprise infrastructure.
Key Responsibilities
The Network Administrator is a foundational role responsible for designing, deploying,
managing, and securing the organization’s network infrastructure in a compliance-driven defense
contracting environment. This individual will assist the IT and Security Director as the primary
technical authority for all network operations, cloud service integrations, and IT procurement
activities, with a strong emphasis on building a scalable architecture compliance and information
protection across the enterprise.
The ideal candidate brings hands-on experience with Palo Alto Networks firewalls and Ubiquiti
networking hardware, deep familiarity with NIST security controls, and the strategic mindset to
grow a network from a startup footprint to an enterprise infrastructure.
Key Responsibilities
- Architect, deploy, and manage LAN/WAN, VPN, VLAN segmentation, DMZ configurations, and wireless infrastructure to support a hybrid and remote workforce
- Design and implement scalable network topologies that can grow from a startup environment to enterprise scale without requiring complete re-architecture
- Configure and maintain Palo Alto Networks next-generation firewalls (NGFWs), including security policies, threat prevention profiles, URL filtering, and GlobalProtect VPN
- Deploy, manage, and optimize Ubiquiti UniFi switching, routing, and wireless access point infrastructure across all office and remote locations
- Maintain network performance through continuous monitoring of availability, utilization, throughput, and latency, escalating issues to vendors as needed
- Document all network changes, configurations, and diagrams in a centralized knowledge management system
- Ensure boundary enforcement through network segmentation, controlled access points, and encrypted communications channels
- Administer and integrate the organization’s Google Workspace environment, including user provisioning, directory services, mail routing, device management (MDM via Google Admin), and security configurations
- Manage Microsoft 365 and/or Azure Active Directory (Entra ID) integrations, including conditional access policies, Intune MDM/MAM for Windows endpoints, and hybrid identity configurations
- Maintain Windows, macOS/iOS and Linux devices through MDM platforms, ensuring patching, configuration profiles.
- Enforce consistent identity and access management (IAM) policies across enterprise platforms using single sign-on (SSO) and multi-factor authentication (MFA) solutions
- Evaluate, procure, and integrate cloud services
- Manage cloud infrastructure integrations including Google Cloud Platform (GCP), Microsoft Azure GovCloud, and third-party SaaS vendors, maintaining a current Customer Responsibility Matrix (CRM) for each provider
- Assist in procurement lifecycle including requirements analysis, vendor evaluation, purchase request preparation, asset tracking, and lifecycle management
- Develop and maintain a hardware/software inventory and asset management system
- Evaluate and recommend network hardware, security tools, and SaaS solutions with compliance posture, scalability, and total cost of ownership as primary criteria
- Active clearance
- Experience supporting CMMC assessment readiness or working with a MSP, and C3PAO
- Certifications: Palo Alto PCNSA or PCNSE, CompTIA Network /Security , Cisco CCNA, Ubiquiti UEWA, or equivalent
- Familiarity with FedRAMP authorization processes and cloud service provider compliance frameworks
- Experience with scripting and automation (PowerShell, Python, or Bash) for network configuration management
- Exposure to SIEM platforms (Splunk, Microsoft Sentinel, or similar) and EDR/XDR solutions
- Prior experience in a startup or high-growth environment where infrastructure was built from the ground up
- Experience with IT GRC tools or documentation platforms (e.g., Exostar, Atlassian Confluence, or similar)
- Familiarity with Zero Trust Architecture principles and ZTNA implementation
- Compliance Mindset: builds compliance into architecture from day one
- Scalability Thinking: Designs systems with growth in mind, capable of scaling from a startup to a enterprise with minimal re-platforming
- Cross-Platform Fluency: Comfortable navigating the operational and security nuances of Google, Apple, and Microsoft ecosystems simultaneously
- Vendor Management: Confident in evaluating and negotiating with hardware and software vendors; understands total cost of ownership and lifecycle planning
- Documentation Discipline: Produces clear, accurate, and current network diagrams, configuration baselines, and operational runbooks essential for CMMC audit evidence
- Collaborative Communication: Works effectively with the IT and Security Director, leadership, and end users; can explain technical concepts in plain language to non-technical stakeholders
- On-site presence required 5 days per week; some remote flexibility available
- May require lifting and racking network equipment (up to 50 lbs)
- Travel to additional company sites or government facilities as needed
- Experience 3–5 years in Network/Systems Administration, ideally in a startup or regulated industry (Aerospace, Defense, FinTech).