Sr Systems Administrator

About CSG

Consulting Services Group (CSG) is a premier provider of support services, bringing a new and unique level of subject matter expertise to our clients. Our innovation-led services provide comprehensive solutions to clients facing high-stakes challenges related to managing essential programs, growth and transformation, critical communications, and logistics. Our people bring unparalleled expertise and dedication, and we are always looking to expand our team.

Position Overview:

CSG is seeking a Senior Systems Administrator to join our team in Herndon, VA. This is a hands-on, senior-level role responsible for architecting, securing, and maintaining enterprise IT systems across both on-premise and cloud environments. The ideal candidate is a self-motivated problem solver who can lead technical initiatives, mentor teammates, and ensure secure, reliable system operations.

Responsibilities:

• Architect, manage, and secure Microsoft Entra ID/Active Directory and other identity management platforms.
• Design, deploy, and administer cloud services across Microsoft Azure, AWS, and Google Cloud environments.
• Manage and maintain VMware virtualized infrastructures.
• Apply a security-first approach including system hardening, patching, compliance (STIGs, NIST, RMF), and vulnerability remediation.
• Develop and maintain automation and scripting solutions using PowerShell, Python, Ansible, Terraform, and ServiceNow.
• Monitor system lifecycle requirements and recommend upgrades, replacements, or retirements.
• Provide advanced technical support, troubleshoot complex issues, and mentor junior administrators.
• Advise leadership on emerging technologies, integration strategies, and best practices.
• Collaborate with cross-functional teams to ensure system performance, reliability, and compliance.

Qualifications:

Required:

• U.S. citizenship. Sponsorship for employment-based visas (e.g., H-1B, OPT, Green Card) is not available.
• Ability to obtain and maintain a DoD Secret clearance (active clearance preferred).
• Minimum 5 years of systems administration or engineering experience beyond IT support/helpdesk.
• Education: Bachelor's degree in Information Technology, Computer Science, or related field, or equivalent experience.
• Hands-on experience with:
  • Microsoft Entra ID / Active Directory
  • Azure and/or AWS (GCP a plus)
  • VMware vSphere/ESXi
  • Scripting/automation using PowerShell, Python, Ansible, Terraform
• Proven experience implementing security compliance standards and patch management.
• Strong written and verbal communication skills; able to convey technical issues to both technical and non-technical audiences.

Preferred:

• Certifications such as AWS Solutions Architect, Microsoft Azure Administrator/Engineer, Google Cloud, or CompTIA Security+.
• Experience with Jira and basic networking (routing/switching) concepts.

Work Environment:

• This is a full-time, on-site position located in Herndon, VA. Remote telework is not available.
• Standard schedule: Monday-Friday, normal duty hours (weekends and holidays off).

Compensation and Benefits:
We are proud to offer a comprehensive benefits package in addition to a competitive salary. Our employees receive no-cost health, dental, and vision insurance options, along with a generous paid time off program that includes sick leave for you or your dependents and paid military leave. We observe 14 holidays annually, providing flexibility throughout the year. Employees also benefit from an immediately vested retirement plan with company match, as well as life and disability insurance, tuition reimbursement, and a robust employee referral program.

We are honored to have been recognized as a USA TODAY and Washington Post Top Workplace for 2025. The strong culture that we have built - one that prioritizes work life balance, employee appreciation, strong values, and meaningful work, contributes to an environment where CSG employees feel valued and supported.

Application and Accommodations:

Applications will be reviewed on a rolling basis. Please let us know if you require accommodations during the application or interview process by reaching us at 540-751-3215.

Equal Employment Opportunity (EEO) Statement:

Consulting Services Group, LLC is an Affirmative Action and Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, or protected veteran status. For more information, see Equal Employment Opportunity. CSG job descriptions are intended to outline the primary responsibilities and qualifications for each role. Equivalent combinations of education, experience, and training may be considered. Candidates are encouraged to apply even if they do not meet every listed qualification.