Software System Administrator

Crescent Systems Inc; Richardson (TX); On-site; USD 80,000 - 110,000; Full time

Job summary

Crescent Systems Inc. is seeking a System Administrator to design and deliver complex systems across engineering disciplines for defense programs in Richardson, TX. You will work with a software engineering team and must meet eligibility for access to classified information.

The role emphasizes DoD compliance (STIG/NIST), Windows and Linux server administration, and collaboration with customers, suppliers, and program management. A U.S.

Qualifications

• Requires a Bachelor's degree in Information Technology, Computer Science, or related field.
• Experience in deploying and administering Windows and Linux servers (physical and virtual).
• Experience with Active Directory, Group Policy, Radius, NPS, Identity Management, and Certificate Services.
• U.S. citizenship and ability to obtain a U.S. Government Security Clearance.

Responsibilities

• Deploy and administer Windows and Linux servers (Debian, Ubuntu) in physical and virtual environments.
• Implement security controls to protect networks and systems adhering to NIST/DoD STIG standards.
• Maintain servers, endpoints, and networks; deploy updates and patches.
• Create and update technical documentation and generate system performance/security reports.

Skills

DoD compliance

Windows servers

Linux servers

Active Directory

Group Policy

Certificate Services

Security practices

Education

Bachelor’s degree in IT/CS or related

Tools

SSL/TLS PKI

Linux KVM/Hypervisors

Job description

Crescent Systems Inc., (CSI) – a custom hardware/software engineering company headquartered in Richardson, TX, is seeking a talented System Administrator. The System Administrator will design, develop, and deliver complex state-of-the-art systems across a variety of engineering disciplines for defense department programs. Candidate must be able to collaborate in a team environment, prioritize and adjust tasks to accomplish the project result, prioritize multiple responsibilities and/or accomplishing them simultaneously, and comprehend and analyze complex problems and develop solutions. This System Administrator will belong to a software engineering team interacting with customers, suppliers, program management, test engineers and senior management. The selected candidate will be subject to government security investigations and must meet eligibility requirements for access to classified information.

The ideal candidate will have a strong understanding and experience with DoD compliance standards such as STIG and NIST as well as expertise in Windows and Linux servers, routers, and switches. The selected candidate will be subject to government security investigations and must meet eligibility requirements for access to classified information.

Essential Duties, Responsibilities, and Qualifications:

• Deploy and administer Windows and Linux (Debian, Ubuntu) servers, both physical and virtual, ensuring reliability, availability, and security.
• Implement security measures and controls to protect networks and systems against unauthorized access and cyber threats, ensuring compliance with NIST.
• Maintain servers, endpoints, and networks; collaborate with team members to deploy updates and patches.
• Install, configure, and maintain operating systems, and software applications.
• Perform routine system updates, patches, and security fixes.
• Create and update technical documentation, including system configurations, procedures, and user guides.
• Generate reports on system performance, security status, and incident responses.
• Bachelor’s degree in Information Technology, Computer Science, or related field.
• Equivalent job experience will be considered in lieu of a degree
• Must be a U.S. Citizen
• Must have the ability to obtain a U.S. Government Security Clearance
• Experience managing and administrating Linux systems, both physical and virtual, in a domain environment.
• Experience managing and administrating Windows systems, both physical and virtual, in a domain environment.
• Experience administrating Active Directory, Group Policy, Radius, Network Policy Server, Identity Management, and Certificate Services.

Preferred Qualifications:

• Experience with SSL, TLS certificates, PKI certificates.
• Experience with chrony and ntp.
• Relevant certifications such as CompTIA A+, Network+, Security+, Microsoft Certified Administrator, Cisco Certified Network Associate (CCNA), etc., are a plus.
• Experience with Linux KVM or other hypervisors.
• Experience with running services as containers
• Ability to comprehend complex verbal and written instructions; communicate effectively, both orally and in writing.
• Display a keen interest in IT-related work and a desire to learn and grow.
• Current Secret or Top-Secret Security Clearance

Candidate Must Possess the Ability to:

• Multi-task, keep records, prepare reports, and follow specific instructions.
• Effectively carry out difficult and complex tasks while exercising independent judgment and initiative.
• Perform other duties as required

ABOUT US

Crescent Systems is committed to operating with integrity, respect, and a high standard of quality for our customers. We continue to explore new technology applications, advance our knowledgebase, and improve our unique skillset. We ask questions and voice concerns without fear; we participate only in honest enterprises. Crescent Systems has a solemn obligation to those we have the honor to support. We welcome new members to our team who are driven to share these core values.

Why Work for Crescent Systems, Inc.?

At CSI, we have cultivated a company culture that revolves around community and collaboration. We believe in fostering a supportive and inclusive work environment where employees are encouraged to thrive both personally and professionally. As an organization, we value excellence in every aspect of our business, from our products and services to our relationships with customers. Meeting company goals and fulfilling commitments is not just a priority but a source of pride, ensuring exceptional customer satisfaction.

If you're seeking to be part of a company that upholds strong values of ethics, quality, and community, then join us at Crescent Systems, Inc. We are always looking for dedicated individuals who share our vision and are ready to contribute their skills and expertise to our dynamic team.