Vertex Inc

Senior Cybersecurity Infrastructure Engineer III

Vertex Inc$100K — $130K *
Aerospace & Defense
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • U.S. Citizen with active Secret security clearance.
  • Bachelor's in Cybersecurity/IT/Computer Science + 8 years experience, Associate's + 10 years, or 12+ years relevant experience without a degree.
  • Active DoD 8140 certification for System Administrator (Intermediate level).
  • Hands-on experience in enterprise networking (LAN/WAN) and basic configuration of network devices.
  • Proficient in hardening and managing Windows, Linux, and Solaris systems, along with VMware and hyperconverged environments.
  • Professional demeanor with ability to independently manage tasks in a fast-paced environment.
  • Strong communication skills for conveying technical information.

Responsibilities

  • Administer systems for unclassified/classified enclaves in diverse IT environments.
  • Act as the primary on-site Information System Security Officer (ISSO).
  • Maintain and patch legacy Operating Systems and network devices.
  • Establish secure configurations for directory services on Windows and Linux.
  • Troubleshoot and configure cable connectivity, both copper and fiber.
  • Enhance Risk Management Framework documentation as needed.
  • Verify system hardening against security compliance standards.

Benefits

  • Deployment rotation with R&R schedule off-island.
  • On-site training for Operator Certification to assist in intelligence operations.
  • Opportunity to work in a unique geographical location on Shemya Island.
  • Team-oriented environment supporting mission-critical radar programs.
Full Job Description
Overview

V2X is seeking a talented Senior Cybersecurity Infrastructure Engineer III to join our Cybersecurity Engineering Team supporting the COBRA DANE radar program on Shemya Island, Alaska. Reporting to the Program Protection Lead (PPL) in Colorado Springs and operating under daily on-site direction from Site Leads, you will serve as the designated site Information System Security Officer (ISSO). In this role, you will lead multi-functional System, Network, and Cyber Engineering tasks to ensure total compliance with Department of Defense (DoD) and Department of the Air Force (DAF) directives.

Remote Operations & Schedule
Due to the unique, remote geographical location on Shemya Island, this position requires a demanding deployment rotation.
  • Work Schedule: Employees typically work 11hours a day, 7 days a week, but are not limited to this schedule.
  • Rotation & R&R: Employees will be on a consistent rotational on-island schedule, followed by uncompensated rest and relaxation (R&R) off-island.

Responsibilities

  • System Administration in support of local unclassified and classified information system enclaves consisting of information technology devices across four domains (Physical/Virtual Servers, Workstations/Thin clients, Enterprise network infrastructure, etc.).
  • Serve as the primary on-site ISSO for the facility; review and recommend changes to system policies, plans, and procedures.
  • Maintain, patch, and repair legacy Operating Systems (Solaris), Windows, and Linux servers/workstations in physical, standalone, LAN/WAN, and virtualized/hyperconverged environments.
  • Establish and maintain directory services (Windows/Linux) with secure configurations.
  • Configure and troubleshoot copper cabling and single-mode/multi-mode fiber connectivity.
  • Review and recommend changes to Risk Management Framework (RMF) Security Authorization Package (SAP) documentation.
  • Verify system hardening to ensure the most current Security Technical Implementation Guides (STIG)/Security Requirements Guides (SRG) are complete.
  • Monitor, record, and transmit comprehensive system logs and trouble reports for accuracy and timely submission.
  • Manage routine preventive maintenance, track disk space, and adjust environmental controls in electronic operations areas.
  • Obtain Operator Certification within six months to perform duties as an Intelligence Operations Center (IOC) Operator during breaks or personnel shortages (training provided on-site).
  • Coordinate with outside agencies and site personnel to facilitate regularly scheduled Radar System Maintenance.
  • Maintain, inventory, and manage secure storage containers for COMSEC materials (Secret, Secure Voice, and associated Cryptographic equipment).
  • Sanitize and destroy magnetic media, Solid-State Drives (SSD), and optical media using on-site degaussers and shredders in accordance with DoD and DAF standards.
  • Perform other duties as assigned by Site Leads.

Qualifications

Minimum Qualifications (Required)

  • Security Clearance: Must be a U.S. Citizen with a current, active Secret security clearance.
  • Education & Experience Tiers:
    - Bachelor's degree in a technical discipline (Cybersecurity, IT, Computer Science) + 8 years of relevant experience; OR
    - Associate's degree in a technical field + 10 years of relevant experience; OR
    - 12+ years of direct, relevant professional experience in lieu of a degree.
  • DoD Certification: Must meet DoD 8140 (formerly 8570) qualification requirements for a System Administrator (DCWF Code 451) at the Intermediate level (e.g., active CompTIA Security+, SSCP, GSEC, or qualifying higher-education degree).
  • Systems-Focused Networking: Solid working knowledge and hands-on experience supporting enterprise network environments (LAN/WAN), including basic configuration and troubleshooting of switches, routers, and connectivity. (You do not need to be a dedicated Network Engineer, but you must be comfortable managing network operations alongside system administration).
  • OS & Virtualization: Hardening knowledge of Windows, Linux, legacy Solaris, and hypervisors. Experience managing enterprise virtualization environments (VMware vSphere ESXi, Nutanix clusters). Experience establishing Windows/Linux directory services and Active Directory in secure configurations.
  • Professionalism & Independence: Professional demeanor with a demonstrated ability to act independently, prioritize tasks, and manage schedules in a high-paced, multi-tasked environment.
  • Communication: Strong interpersonal skills with the ability to communicate technical information effectively in both oral and written modes.

Physical Requirements

  • Physical Capabilities: Ability to lift and carry up to 50 lbs. individually, and team-lift heavier enterprise equipment (such as physical servers and switches) into standard server racks.
  • Mobility & Dexterity: Ability to climb ladders, work in tight spaces (such as cable closets or under flooring), and configure/route physical copper and fiber cabling infrastructure.

Preferred Qualifications (Desired)

  • Network Infrastructure Security: Experience with advanced network device configuration adjustments and infrastructure security hardening.
  • Security Toolsets: Experience with anti-virus, HIDS/NIDS, and centralized SIEM/log analysis applications.
  • Compliance Frameworks: Experience with Enterprise Mission Assurance Support Service (eMASS) and RMF packages.
  • Vulnerability Assessment: Vulnerability testing expertise using Nessus, ACAS, and SCAP tools.
  • Industrial Systems: Experience or exposure to Programmable Logic Controllers (PLC) programming and HMI software.


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About Vertex Inc

Vertex Inc is a leading provider of tax technology and services, enabling companies of all sizes to realize the full strategic potential of the tax function by automating and integrating tax processes, while leveraging advanced and predictive analytics of tax data. Vertex provides cloud-based and on-premise solutions that can be tailored to specific industries for every major line of tax, including income, sales and consumer use, value added and payroll. Vertex also offers solutions for tax data management, compliance and reporting, tax research, and planning and analysis. The company was founded in 1978 and is headquartered in King of Prussia, Pennsylvania.
Learn more about Vertex Inc
Size
1,200 employees
Market Cap
$2.2 billion
Industry
Net Income
-$78.9 million
Founded
1978
Revenue
$374.6 million
NASDAQ

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