Sr. System Administrator / ISSO - Castalia Systems, LLC

Join Our Stellar Team at Castalia Systems!

Are you ready to skyrocket your career with us? We're on the lookout for ambitious individuals who are eager to make their mark in a diverse and thriving environment.

At Castalia Systems, we're not just another company – we're a certified Woman Owned Small Business (WOSB) and Small Disadvantage Business (SDB) committed to excellence since 2011. Join us in delivering top-tier solutions to the dynamic Defense and Intelligence sector.

As valued members of our team, we prioritize your well-being. Enjoy a comprehensive benefits package, including medical, dental, and vision coverage, 401k matching, generous PTO, paid holidays, professional training opportunities, and even pet insurance to ensure your furry friends are cared for too.

Castalia Systems is looking for a Top Secret with SCI cleared Senior Systems Administrator/ISSO with 10+ years of experience to join our team in Reston, VA. 

The DoD contract is a multi-year operations and maintenance (O&M) contract for a 3D geospatial visualization system. On this program, we provide the customer with a wide variety of systems administration and cybersecurity services.  A successful candidate will be well versed in the maintenance of SQL server administration, network troubleshooting, command line and PowerShell scripting, server maintenance, web application troubleshooting, the RMF/ATO process, and customer support. A successful candidate will be well versed in the latest cyber security practices to be part of a team responsible for supporting the development and maintenance of a custom 3D geospatial visualization and production system on DoD IT networks.  An Ideal candidate should have experience in many of the required technical skills listed.  This position will work in a competitive environment and be responsible for working through all aspects of Life Cycle development.

A qualified candidate will perform the following duties and responsibilities, but are not limited to:

• Working with staff, managers, and team members to implement and document best security & IT practices per DoD regulations.
• Configuring and supporting security tools such as firewalls and anti-virus software.
• Responsible for the maintenance, configuration, and reliable operation of computer systems, network servers and virtualization.
• Install and upgrade computer components and software, manage virtual servers and integrate automation processes.
• Troubleshoot hardware and software errors by running diagnostics, documenting problems and resolutions, prioritizing problems and assessing impact of issues.
• Provide documentation and technical specifications to IT staff for planning and implementing new or upgrades of IT Infrastructure.
• Lead desktop and help desk support efforts, making sure all desktop applications, workstations and related equipment problems are resolved in a timely manner with limited disruptions.
• Responsible for capacity, storage, planning and database performance.
• Updating software with the latest security patches and ensuring the proper defenses are present for each network resource.

Security Clearance Requirement:

• Top Secret with SCI

Required Qualifications:

• Current CompTIA Security+ Certification or comparable 8750 documentation.
• A minimum of a bachelor’s degree in a relevant field of study and 10+ years of experience.
• Knowledgeable of Cybersecurity Risk Management Framework (RMF) (NIST 800-53).
• Familiarity with the Authorization to Operate (ATO) process.
• Windows Server administration
• Acquiring accreditation of enterprise servers
• SQL Server administration.
• Software installations, updates, and maintenance.
• Web application troubleshooting.

Preferred Qualifications:

• Able to conduct server vulnerability scans with remediation.
• Experience with XACTA 360 Cyber Risk Management Workflow software
• Knowledge of Command line & PowerShell.
• Working knowledge of Windows Server 2019
• MS Internet Information Services (IIS) v10.
• Data Transfer Officer (DTO); data transfers from network to network.

Castalia Systems is an equal employment opportunity and affirmative action employer and strives to comply with all applicable laws prohibiting discrimination based on race, color, creed, sex, sexual orientation, age, national origin, or ancestry, physical or mental disability, veteran status, marital status, HIV-positive status, as well as any other category protected by federal, state, or local laws. All such discrimination is unlawful, and all persons involved in the operations of the company are prohibited from engaging in this type of conduct.

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