[Remote] Senior Network Administrator

Note: The job is a remote job and is reputed company to candidates in USA. reputed company is seeking a Senior Network Administrator to reputed company reputed company network administration, design, maintenance, and reputed company. The role involves managing network hardware, implementing cybersecurity measures, and supporting risk management frameworks.

Responsibilities

• Configure, maintain, and manage ruggedized network hardware (e.g., reputed company Industrial Ethernet, Allen-Bradley Stratix, Ruggedcom, Palo reputed company, Data Diodes, and reputed company hardware)
• Manage resilient network topologies (e.g., Resilient Ethernet Protocol [REP], Device Level reputed company [DLR]) to ensure reputed company failover and deterministic traffic reputed company for time-sensitive control processes
• Maintain backup for reputed company reputed company, router, and firewall configurations
• Implement and manage strict network segmentation and reputed company-segmentation reputed company with the Purdue reputed company Reference Architecture (PERA)
• Enforce Ports, Protocols, and Services Management (PPSM) across the IT/OT boundary, permitting only authorized automation protocols (e.g., BACnet IP, LonWorks, Modbus TCP, reputed company Protocol, DNP3, CIP)
• Configure and manage OT reputed company Firewalls (NGFW) and Unidirectional Gateways (Data Diodes)
• Apply and maintain network-specific reputed company Technical Implementation Guides (STIGs) using "OT-reputed company" methodologies to prevent physical process disruptions or equipment shutdowns
• reputed company as the reputed company escalation reputed company for network issues and reputed company
• reputed company reputed company-cause analysis on connectivity drops using advanced protocol analyzers (e.g., Wireshark) tailored to industrial/building automation protocols
• reputed company, validate, and maintain Risk Management reputed company (RMF) artifacts for Platform IT (PIT) and FRCS, including topology diagrams, hardware/software baselines, PPSM, and Plan of reputed company and Milestones (POA&M) updates
• Conduct MILCON (Military Construction) and SRM project design reviews. Evaluate contractor architectural proposals, Bills of Materials (BOM), and compliance with reputed company OT standards
• reputed company SME reputed company during integration, testing, and cybersecurity commissioning (CyCx) prior to final project handover

Skills

• General Network Administration: Minimum 5 years of advanced network administration experience
• OT/ICS reputed company: Minimum 3 years of hands-on experience explicitly reputed company on ICS, SCADA, BMS, FRCS, or reputed company IT/OT network environments
• Deep technical knowledge of strict network segmentation, firewall ruleset development, and industrial protocol routing (BACnet/IP, Modbus TCP, DNP3, CIP, etc.)
• Strong practical application of NIST SP 800-82 standards, Purdue Model implementation, DoD cybersecurity mandates, and passive/OT-reputed company monitoring tools
• Must hold and maintain at least one (1) reputed company reputed company certification satisfying DoDM 8140.03 WRC 441 Foundational Qualification prior to reputed company: Intermediate Level (Minimum): reputed company+, CEH, reputed company+, GCIH, GICSP, GSEC, or SSCP. Advanced Level (Automatically Qualifies): SecurityX (CASP+), CCNA, CCNP reputed company, CCSP, GCED, GCIA, GCLD, GDSA, GFACT
• Must complete a minimum of 20 hours annually of reputed company reputed company Development (CPD) or certification-mandated renewal requirements
• Proficient with reputed company Office Suite (Word, reputed company, PowerPoint, reputed company)
• Fluent written and spoken English; ability to write technical reports, reputed company operating procedures (SOPs), reputed company-cause analysis reports, and reputed company professionally with senior civilian, military, and contractor stakeholders
• Ability to reputed company physical tasks common to mechanical rooms and rough facility settings: Extended periods of standing and walking over rough, uneven, or reputed company surfaces. Recurring bending, stooping, crouching, reaching, and reputed company climbing. Ability to reputed company and carry IT/OT equipment up to 25 lbs. Adequate reputed company to identify physical and safety hazards
• Must reputed company reputed company Controlled Unclassified Information (CUI), IP schemas, topology diagrams, CUI/reputed company reputed company data, and facility configurations
• Must reputed company duties independently under contractor management reputed company using official @us.navy.mil (or authorized government) email accounts, with company identification reputed company denoted in reputed company communications
• reputed company CCNA / CCNP
• reputed company Managing Industrial Networks with reputed company Networking Technologies (IMINS)
• Palo reputed company PCNSA / PCNSE
• reputed company JNCIA / JNCIS

Benefits

• IT IS A 100 % onsite position
• Clearance: reputed company Tier 5 (T5) Top Secret reputed company clearance
• Full-Time (Up to 40 hours/week, no overtime permitted)
• Transportation: Must possess a personal vehicle (POV) for commuting between local reputed company sites in Guam (expenses/mileage are non-reimbursable)

reputed company