Systems Administrator - Senior - FULLY CLEARED with POLYGRAPH REQUIRED

Constellation Technologies, Inc; Linthicum (MD); On-site; USD 160,000 - 200,000; Full time

Benefits offered by this job

Affordable healthcare options

100% employer-paid dental insurance

401(k) with company match

Annual training reimbursement

Unlimited access to training programs

Job summary

A leading technology company is seeking a Senior Systems Administrator in Linthicum, Maryland. This full-time position requires US citizenship and an active TS/SCI clearance with polygraph. The successful candidate will manage IT system operations, provide troubleshooting support, and ensure system security. Candidates with strong experience in both RedHat Linux and Windows, as well as relevant certifications, are encouraged to apply. A competitive salary and comprehensive benefits package are included.

Qualifications

• Must be a US citizen with TS/SCI clearance and active polygraph.
• At least 15 years of relevant experience in systems administration.
• Strong troubleshooting skills in Linux and Windows environments.

Responsibilities

• Support implementation and maintenance of IT systems.
• Manage configuration and operations of IT systems.
• Provide Tier 1 and 2 problem identification and resolution.

Skills

RedHat Linux command line administration

Windows 2012/2016/2019 administration

Nessus Scanner experience

Ability to write POA&Ms

Knowledge of Secure the Enterprise score

Education

Bachelor’s degree in a technical discipline

Security+ Certification

Job description

Systems Administrator - Senior - FULLY CLEARED with POLYGRAPH REQUIRED

Full‑time position at Constellation Technologies, Inc. United States citizenship and an active TS/SCI security clearance with polygraph required.

Salary

Base pay range: $160,000 - $200,000 per year.

Responsibilities

• Provide support for implementation, troubleshooting and maintenance of IT systems.
• Provide Tier 1 (Help Desk) problem identification, diagnosis and resolution of problems.
• Manage daily activities of configuration and operation of IT systems.
• Assist users in accessing and using IT systems.
• Provide Tier I and Tier II problem identification, diagnosis and resolution.
• Support day‑to‑day operations, monitoring and problem resolution for client/server/storage/network devices, mobile devices, etc.
• Escalate and communicate status to agency management and internal customers.
• Optimize system operations and resource utilization, perform system capacity analysis and planning.
• Provide in‑depth troubleshooting of IT systems.
• Provide detailed analysis and feedback to management for escalated tickets.
• Support dispatch system and hardware problems and remain involved in resolution.
• Configure and manage UNIX and Windows (or other applicable) operating systems, install/load OS software, troubleshoot, maintain integrity and configure network components, implementing OS enhancements.
• Configure and manage virtual environments.
• Patch systems based on state‑of‑the‑art security and functional parameters.

Qualifications

• Must be a US Citizen.
• Must have TS/SCI clearance with active polygraph.
• At least fifteen (15) years of direct/relevant experience.
• Bachelor’s degree in a technical discipline from an accredited college or university.
• Five (05) years of additional Systems Administration experience on projects with similar processes may be substituted for a bachelor’s degree.
• Security+ Certification.
• Strong RedHat Linux command line administration and troubleshooting skills.
• Strong Windows 2012, 2016, 2019 administration and troubleshooting skills.
• Experience with Nessus Scanner and managing Nessus Agents.
• Ability to write POA&Ms.
• Knowledge of maintaining a Secure the Enterprise (STE) / Secure the Network (STN) score.
• Familiarity with Latte Art, Biscotti, XACTA.

Benefits

• Affordable healthcare options with 80% employer‑paid premium plus a company‑funded HSA.
• Dental insurance with 100% employer‑paid premium.
• Vision with 80% employer‑paid premium.
• Employer‑paid life insurance 100%.
• Employer‑paid short‑term and long‑term disability 100%.
• Annual training, continued education and professional membership reimbursement.
• Unlimited access to Red Hat Enterprise Linux and AWS training and accreditation.
• Annual reimbursement for technology (phones, computers, printers, etc.).
• 401(k) with company match up to 5% with 100% immediate vesting after 90 days of employment.

Environment and Perks

• Professional development investment and paid time off for training.
• Contract and work locations in Maryland, Virginia, Colorado, Texas, Utah, Florida and Hawaii.
• Team‑building events throughout the year (destination family events, holiday party, monthly get‑togethers).
• Leadership team engagement and mentorship.
• Performance recognition program.
• Complimentary branded apparel.

Equal Employment Opportunity

Constellation Technologies is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, religion, creed, color, national origin, ancestry, sex (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, medical condition, marital or domestic partner status, sexual orientation, gender, gender identity, gender expression and transgender status, mental disability or physical disability, genetic information, military or veteran status, citizenship, low‑income status or any other status or characteristic protected by applicable law. Job applicants can submit questions about CTI’s equal employment opportunity policy to cti‑hr@cti‑md.com.

We may use artificial intelligence (AI) tools to support parts of the hiring process, but final hiring decisions are made by humans. If you would like more information about how your data is processed, please contact us.

The pay range for this job is a general guideline only and not a guarantee of compensation or salary.