Senior Server Administrator

On-site in Washington, DC

Our client seeks a Senior Server Windows Engineer to provide systems administration, engineering, implementation, and migration support for a large Windows server estate across on-premises and cloud environments in AWS, Azure, Google, and Oracle. The role supports troubleshooting across multiple data centers, manages change requests, serves as an escalation point, and partners with cross-functional teams to operate, monitor, audit, and harden server assets. The position blends engineering, operations, and hands-on support with a focus on vulnerability remediation, patching, automation, and documentation.

Due to federal security clearance requirements, applicant must be a United States Citizen or Permanent Resident with an active Public Trust clearance. This is a contract to hire opportunity. Applicants must be willing and able to work on a w2 basis and convert to FTE following contract duration. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance.

Rate: $45.00 to $50.00/hr. w2

• Provide full-time on-site support at DOT HQ in Washington, DC, with coverage ending between 5pm and 7pm.
• Participate in a 24x7 on-call escalation rotation every 2–3 months.
• Identify opportunities to improve and automate service delivery through scripting.
• Perform security hardening, patching, and server certificate updates.
• Run and analyze vulnerability scans for an enterprise of 2000+ Windows servers.
• Maintain standard operating procedures and engineering documentation.
• Provide escalation support to system administrators and conduct root cause analysis for outages.
• Recognize and escalate risks, issues, and concerns.
• Analyze vulnerability reports, define remediation ownership, and prioritize critical items.
• Coordinate and implement vulnerability remediations across teams.
• Harden Windows OS per NIST policy, including TLS and cipher suites.
• Assist with POA&Ms for long-lead remediation items.
• Partner with SCCM/Deployment teams for routine and bulk patching and reporting.
• Provide on-call support and manage ticket queues.
• Drive continuous improvement of processes and documentation.
• Support new enterprise systems and engineering solutions.
• Create and maintain domain technology documentation for installation, configuration, and troubleshooting.

• Minimum 10 years administering and managing Windows servers, systems, and cloud infrastructure, including file and print.
• Experience managing 2000+ servers across multiple field locations.
• Proven leadership of cross-team troubleshooting calls using a multi-discipline approach.
• Extensive knowledge of multi-vendor server operating systems.
• Senior-level MS Server Administration.
• Senior-level scripting with MS Graph/PowerShell and VBScript.
• Senior-level experience with Windows Server 2019–2022.
• Senior-level VMware vSphere.
• Intermediate-level Active Directory / Entra.
• Strong skills resolving failed Windows update installations.
• Strong knowledge of AD Group Policy and applying security posture via GPOs.
• Strong knowledge of SCCM.
• Experience with root cause analysis, risk identification, and mitigation.
• Self-starter with strong problem solving and communication skills.
• Experience installing drivers, firmware, BIOS, and hardware upgrades on Dell servers.
• Knowledge of common Windows server and client ports and protocols.
• Experience in a fast-paced ITSM support environment.
• Preferred: Intune co-management with SCCM/MECM.
• Preferred: ITSM service delivery to the US Government.
• Preferred: Microsoft certifications such as Windows Server Hybrid Administrator Associate, Endpoint Administrator Associate, Azure Fundamentals, Azure Administrator Associate, MS365 Administrator Expert.
• Preferred: AWS/Azure cloud certifications and VMware certifications.
• Preferred: Experience with Windows Server 2025, image building, and applying STIGs.
• Preferred: Admin proficiency with vulnerability tools such as Tenable Nessus, Qualys WAS, Invicti, and BigFix.
• Preferred: Experience with Dell OpenManage Enterprise and Power BI.

Recruitment Transparency Notice

Eliassen Group values transparency in our recruitment practices. Please be advised that Eliassen Group utilizes artificial intelligence (AI) tools as part of its initial application screening  and hiring process. You may receive email and SMS notifications from the Eliassen Virtual Recruiting Team ( View email address on us.fitly.work , View phone number on us.fitly.work) inviting you to complete a brief voice screening as part of your application process. These tools assist our hiring teams in different ways, including but not limited to, assistance in reviewing application materials to help identify candidates whose qualifications most closely match the requirements of the position. All AI-assisted evaluations and responses are reviewed by human recruiters before any hiring decisions are made. The use of AI in our process is intended to support fairness, efficiency, and consistency, and Eliassen Group takes measures to prevent bias or discrimination in connection with its hiring practices. By proceeding, you acknowledge, agree, and consent to Eliassen Group’s use of these tools, including AI tools, as part of the application and hiring process.

Skills, experience, and other compensable factors will be considered when determining pay rate. The pay range provided in this posting reflects a W2 hourly rate; other employment options may be available that may result in pay outside of the provided range.

· When you work with Eliassen Group, all email communication will come from an Eliassen.com address, never Gmail, Yahoo, etc.

· Eliassen Group will never ask you for personal information (home address, bank account, or check routing number) until you have worked with someone clearly associated with Eliassen Group.

If you have any indication of fraudulent activity, please contact View email address on us.fitly.work .

About Eliassen Group:

Eliassen Group is a strategic consulting firm that helps organizations reach further and achieve more through our technology, business advisory, and life sciences solutions. For nearly 40 years, we have combined exceptional people, deep domain expertise, and intelligent capabilities to expand our clients’ capacity and accelerate meaningful outcomes. We are driven by a purpose to positively impact the lives of our employees, clients, consultants, and the communities we serve.

Eliassen is committed to building a diverse and inclusive team from a variety of backgrounds, perspectives, and skills. We are an Equal Opportunity and Affirmative Action Employer and all employment decisions are based on merit, performance, and business needs. Eliassen does not discriminate on the basis of race, color, gender identity or expression, sexual preference or orientation, sex (including pregnancy, childbirth, and related medical conditions), marital status, creed, religion, physical or mental disability, genetic information, military or veteran status, age, ancestry, national origin, citizenship status, prohibited criminal record inquiries of applicants and employees, or any other category protected by federal, state, or local laws.

Don’t miss out on our referral program! If we hire a candidate that you refer us to then you can be eligible for a $1,000 referral check!