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Senior Systems Administrator

Jobs via Dice, Washington, District of Columbia, us, 20022

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Job Summary Galapagos Federal Systems, LLC is seeking a highly experienced Senior Systems Administrator to provide technical leadership and hands‑on expertise in managing enterprise IT infrastructures across hybrid and cloud‑enabled environments. This role is critical in ensuring the reliability, security, and performance of mission systems that support Department of Defense (DoD) and federal operations.

Responsibilities

Install, configure, and maintain infrastructure equipment and enterprise IT systems

Administer and troubleshoot Microsoft Windows Server 2012 R2 or higher

Support Microsoft operating systems, Office 365, and Microsoft Teams in secure environments

Manage and maintain core IT services including Active Directory, Group Policy, DHCP, DNS, and DFS

Troubleshoot authentication mechanisms (Kerberos, LDAP, NTLM) and related tools

Support and maintain Public Key Infrastructure (PKI) environments

Automate and script administrative tasks using PowerShell and .NET

Provide system administration support in large‑scale, multi‑data center environments

Develop technical documentation, compliance reports, and executive‑level briefings

Collaborate with cross‑functional teams to ensure secure, reliable IT operations

Required Skills and Experience

Active Secret Clearance

5+ years of experience as a systems engineer or administrator in enterprise IT environments

Proven expertise in infrastructure system installation, configuration, and maintenance

Strong knowledge of Microsoft technologies (Windows Server, Office 365, Teams)

Experience in core IT services (AD, GPO, DHCP, DNS, DFS)

Familiarity with authentication protocols (Kerberos, LDAP, NTLM)

Experience with PKI administration and troubleshooting

Hands‑on skills in automation and scripting (PowerShell, .NET)

Working knowledge of networking concepts (routing, switching, firewalls)

Analytical and problem‑solving skills in complex enterprise environments

Experience supporting DoD or federal mission IT operations

Strong communication and teamwork skills

Knowledge of database and programming concepts (preferred)

Required Education & Certifications

Bachelor's degree, or higher, in Computer Science, or a related field

Microsoft Certified Systems Engineer (preferred)

CompTIA Sec+ (Required)

Benefits

Medical, dental, vision, disability, and life insurance

Flexible Spending Accounts

401(k)

PTO

Paid Parental leave

Tuition reimbursement

Paid federal holidays

Security Clearance A high‑level Department of Defense active security clearance is/may be required for this position. Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to government information.

Physical Requirements Work may involve sitting or standing for extended periods of time and typing and reading from a computer screen. The candidate must have enough mobility, including bending, reaching, and kneeling, to complete daily duties in a prompt and efficient manner and that may include lifting up to thirty pounds, as necessary.

Company Summary Headquartered in Hawaii, Galapagos Federal Systems, LLC, is an SBA‑Certified NHO‑owned 8(a) Small Business specializing in global information technology solutions. We deliver professional services in IT Design & Installation, Cybersecurity Engineering & Support, Application Integration & Development, Software & Hardware Engineering, Network & Systems Management, Information Systems Security, and Business Management Services.

Leveraging over 30 years of experience supporting both federal and commercial markets, our team brings innovative expertise to complex IT challenges, delivering solutions across the globe.

Galapagos Federal Systems, LLC is an equal opportunity employer.

Posted Salary Range: USD $65,000.00 - USD $75,000.00 /Yr.

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