Senior Systems Administrator

Senior Systems Administrator – Lanham, MD Serve as the primary IT lead for the Lanham office, ensuring reliability, performance, and user support across our hybrid infrastructure on‑premises and cloud environments. Key Responsibilities Serve as the primary IT owner for the Lanham office, ensuring reliability, performance, and user support Maintain and support hybrid infrastructure, including VMware ESXi environments, virtual machines, and cloud services Administer and optimize Microsoft 365 GCC High (Entra ID, Exchange Online, SharePoint, Teams) Support and contribute to data center operations, system health, maintenance, and incident response Act as a key escalation point for complex technical issues across the enterprise Partner with a distributed team of system administrators to support enterprise‑wide help desk operations Drive improvements in system performance, standardization, and operational efficiency Support implementation and enforcement of security and compliance controls (CMMC, NIST 800‑171, etc.) Respond to and lead troubleshooting during outages or critical incidents Provide hands‑on support for onsite needs including workstation deployment, hardware replacement, and troubleshooting Manage and monitor virtual environments across on‑prem and cloud platforms Participate in ticket triage, escalation, and resolution across a multi‑site environment Maintain system documentation, procedures, and operational runbooks Collaborate with vendors and managed service providers when required Support infrastructure‑related projects and site‑specific initiatives Required Qualifications 8+ years of experience in systems administration, infrastructure support, or a similar role Proven experience managing hybrid IT environments (on‑premises and cloud) Strong hands‑on experience with Microsoft 365, preferably within GCC High or other regulated environments Deep experience with VMware ESXi and virtual infrastructure management Strong knowledge of Windows Server, Active Directory, Group Policy, and endpoint management Experience supporting data center infrastructure and operations Demonstrated ability to troubleshoot and resolve complex, cross‑domain technical issues Strong communication and customer service skills, supporting both technical and non‑technical users Ability to work independently, prioritize effectively, and take ownership of systems and issues Security Clearance No security clearance required. Travel 5–10% travel. Work Environment Hybrid role based in Lanham, MD (minimum two days onsite per week) Occasional travel to Chantilly, VA and Huntsville, AL may be required Expected to support critical incidents outside of standard business hours when necessary Physical and Mental Demands Ability to remain in a stationary position and operate a computer for extended periods Occasional ability to move or transport items up to 25 pounds Communicate effectively in English (verbal, written) and possess visual and auditory acuity for tasks and safety Manage multiple tasks, prioritize, and maintain focus in dynamic environments Demonstrate strong problem‑solving, critical thinking, and analytical skills Maintain consistent attendance, punctuality, and high professional standards Benefits Competitive health care plans with savings accounts Dental and vision plans 401(k) with 100% company match up to 6%, with immediate vesting on company match Life and disability insurance Learning Management System with robust offerings Tuition Reimbursement Program Flexible working arrangements where possible 13 paid holidays per year Veterans’ focused Employee Resources Group with regular educational sessions and communications Equal Employment Opportunity Octave Federal is an Equal Employment Opportunity Employer. We comply with all applicable federal anti‑discrimination laws and provide reasonable accommodations for qualified individuals with disabilities and disabled veterans in its job application procedures. All qualified applicants will receive consideration for employment without regard to protected veteran status, disability status, or any other protected class covered by federal, state, or local law. Octave Federal participates in E‑Verify. If you have any difficulty using our online system and need an accommodation due to a disability, you may use the following email address, View email address on click.appcast.io, and/or phone number View phone number on click.appcast.io to contact us about your interest in employment with Octave Federal. #J-18808-Ljbffr Hexagon US Federal