Sr. Systems Administrator with Security Clearance

Senior Systems Administrator Location: Gaithersburg, MD Required Clearance: Active Top Secret (must be able to obtain TS/SCI with Polygraph) Employment Type: Full-Time Regular Shift: Day Travel: No Company Overview We are Ennoble First. The people supporting and securing some of the most complex government, defense, and intelligence projects across the country. We ensure today is safe and tomorrow is smarter. Our work has meaning and impact on the world around us, but also on us, and that's important. Ennoble First is your place. You make it your own by embracing autonomy, seizing opportunity, and being trusted to deliver your best every day. We think. We act. We deliver. Job Description Ennoble First is seeking a Senior Systems Administrator to support a mission-critical intelligence program. As a senior member of the IT operations team, you will play a key role in managing, securing, and optimizing high-performance systems that directly support intelligence and geospatial initiatives. This position requires deep technical expertise, proactive leadership, and the ability to operate effectively in a fast-paced, classified environment. You will lead system operations, mentor junior administrators, and ensure the availability, reliability, and security of infrastructure supporting geospatial analytics, software development, and data services. Primary Responsibilities

• Lead system administration for Linux and Windows-based systems in secure, mission-critical environments
• Architect and manage complex server, storage, and virtualization infrastructure (VMware, KVM)
• Perform OS installation, configuration, hardening, and patching in compliance with DoD STIGs and agency policies
• Monitor and tune system performance, conduct root cause analysis, and resolve complex issues quickly and efficiently
• Support backup/recovery strategies, disaster recovery plans, and continuity of operations
• Oversee and maintain automation scripts and infrastructure as code (Ansible, PowerShell, Bash, etc.)
• Maintain system documentation, configuration baselines, and support CM and RM activities
• Lead and support deployment of system enhancements and modernization initiatives
• Collaborate with cybersecurity, network engineering, and software development teams to ensure system compliance and performance
• Participate in security audits, incident response, and operational readiness activities
• Provide Tier 2/3 help desk support, including troubleshooting complex user issues, resolving escalated tickets, and collaborating with the service desk to minimize downtime Basic Qualifications
• US citizenship is required per contract
• Bachelor's degree in Computer Science, Engineering, Information Technology, or related discipline and 8-12 years of prior relevant experience or Master's with 6-10 years of prior relevant experience. Additional years of experience in lieu of degree are acceptable
• Active Top Secret to be considered with the ability to obtain TS/SCI with Polygraph
• DoD 8570 IAT Level II or III certification (e.g., Security CE, CASP, CISSP)
• Experience with cloud platforms (AWS GovCloud, Azure Government) and hybrid cloud environments
• Experience with Linux (Red Hat Enterprise Linux or CentOS) and Windows Server platform system administration
• Proficiency with virtualization platforms (VMware, KVM) and management tools
• Experience with automation and scripting (Ansible, Bash, PowerShell, Python)
• Familiarity with STIG compliance, system hardening, ACAS scans, and RMF processes
• Strong understanding of enterprise networking, identity/access management, and storage concepts
• Proven ability to troubleshoot, document, and lead systems-related projects independently
• Experience supporting IC or DoD classified environments Preferred Qualifications
• Experience supporting GEOINT missions
• Familiarity with DevOps tools and pipelines (Git, Jenkins, Docker, etc.)
• Knowledge of enterprise backup solutions, DNS, DHCP, Active Directory, and PKI Pay Range $110,000-$130,000 The Ennoble First pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. Equal Employment Opportunity Ennoble First is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status. E-Verify Ennoble First participates in the E-Verify program to confirm employment eligibility. Ennoble First is committed to providing a diverse and inclusive work environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. Ennoble First participates in E-Verify. The information below will be listed on our website's careers landing page. EEO is the Law | Pay Transparency Nondiscrimination www.dhs.gov/E-Verify E-Verify is a registered trademark of the U.S. Department of Homeland Security. This business uses E-Verify in its hiring practices to achieve a lawful workforce.