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Senior System/Network Administrator (Systems Administrator 3) - 25175
HIILuna, ROU, Luna, Romania, Romaniafull_timeVerifiedPosted 26 Aug 2025
💰 $105,664/yr($87,990/yr – $105,664/yr)
About the role
<p>Requisition Number: 25175 </p>
<p>Required Travel: 0 - 10%</p>
<p>Employment Type: Full Time/Salaried/Exempt</p>
<p>Anticipated Salary Range: $87,990.00 - $105,664.00 </p>
<p>Security Clearance: Ability to Obtain </p>
<p>Level of Experience: Senior </p>
<p> </p>
<p>This opportunity resides with <b>Global Security (GS). </b>Mission Technologies’ Global Security (GS) group comprises live, virtual, constructive (LVC) solutions; fleet sustainment; nuclear and environmental; and Australia business.<br/>
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As a trusted partner to our military customers, HII designs, develops and operates the largest LVC enterprise that prepares warfighters for cross-domain battle. With advanced technologies to enable mission readiness, HII understands that preparation requires full coordination—not readiness in piece-parts.<br/>
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For more than 40 years, the U.S. Navy has entrusted HII to maintain and modernize the vast majority of its fleet. With a holistic approach to life-cycle maritime defense systems—from small watercraft to submarines, surface combatants and aircraft carriers—HII ensures a high state of readiness.<br/>
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HII supports the Department of Energy’s national security mission through the management and operation of its sites, as well as the safe cleanup of legacy waste across the country. HII meets clients’ toughest nuclear and environmental challenges.<br/>
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<p><b>Meet HII’s Mission Technologies Division</b><br/>
Our team of more than 7,000 professionals worldwide delivers all-domain expertise and advanced technologies in service of mission partners across the globe. Mission Technologies is leading the next evolution of national defense – the data evolution - by accelerating a breadth of national security solutions for government and commercial customers. Our capabilities range from C5ISR, AI and Big Data, cyber operations and synthetic training environments to fleet sustainment, environmental remediation and the largest family of unmanned underwater vehicles in every class. Find the role that’s right for you. Apply today. We look forward to meeting you.</p>
<p> </p>
<p>To learn more about Mission Technologies, click here for a short video: <a href="https://vimeo.com/732533072">https://vimeo.com/732533072</a></p>
<h2><u><b>Job Description</b></u></h2>
<p>HII Mission Technolgoies is seeking an skilled Senior System/Network Administrator to support our customer at the Naval Support Facility Deveselu in Romania. The ideal candidate will have hands-on experience in network performance monitoring, troubleshooting, maintaining network/system documentation and be able to make recommendations for network enhacements.This position is contingent upon contract award. </p><h2><u><b>Essential Job Responsibilities</b></u></h2>
<ul>
<li>Designs and implements scalable and robust network solutions to support organizational needs.</li>
<li>Plans and executes network upgrades and expansion to ensure optimal performance and capacity.</li>
<li>Monitors network performance and troubleshoots and resolves highly complex problems to maintain operating efficiency and ensure quality transmission service on the network.</li>
<li>Uses subject matter expertise to diagnose and solve issues and has authority to deviate from standard operating procedures.</li>
<li>Provides technical guidance to IT staff and end users regarding network related issues.</li>
<li>Develops and implements network security policies and procedures to protect the organizations data and resources.</li>
<li>Configures and maintains network hardware and software, including routers, switches, firewalls, VPNs and wireless access points.</li>
<li>Implements and manages security measures such as firewalls, intrusion detection/prevention systems and VPNs.</li>
<li>Ensures compliance with relevant regulations and standards, including data protection and privacy requirements.</li>
<li>Performs regular backup and recovery tests to ensure data integrity and availability.</li>
<li>Coordinates with other IT teams to ensure comprehensive business continuity planning.</li>
<li>Maintains detailed documentation of network configurations, changes and procedures.</li>
<li>Prepares reports on network performance, security incidents and other key metrics.</li>
<li>Provides recommendations for network improvements based on analysis and industry best practices.</li>
<li>Leads and manage network-related projects from planning through execution and completion.</li>
<li>Collaborates with cross functional teams to ensure successful project delivery.</li>
<li>Develops and maintains disaster recovery plans to ensure network resilience and continuity in case of emergencies and for combat conditions I, II, and III.</li>
<li>Perform all duties as above in austere, disrupted, degraded, intermittent, low-bandwidth (DDIL) environments and combat conditions I, II, and III.</li>
</ul><h2><u><b>Minimum Qualifications</b></u></h2>
<ul>
<li>6 years relevant experience with Bachelors in re
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