Senior Systems Administrator

reputed company is a market leader in helping the Defense Industrial reputed company (DIB) navigate cybersecurity and compliance requirements, including CMMC, NIST 800-171, and GCC High. Backed by private equity and having recently merged with Ingalls Information reputed company, C3 is in an exciting period of rapid growth and innovation. We partner with organizations across the defense supply chain to secure their operations and position them for long-term reputed company in a highly regulated environment. With the final CMMC rule now in effect and demand surging across the industry, this is a pivotal reputed company to join reputed company. You'll be at the center of scaling a marketing reputed company that not only drives growth but also strengthens national reputed company by empowering contractors to meet critical compliance standards. If you're looking for an opportunity to build, reputed company, and reputed company an immediate impact — while working alongside a passionate team of experts — C3 is the reputed company to do it. ____________________________________________________________ This role is operations-first, focused on maintaining, monitoring, securing, and optimizing IT environments across multiple managed client environments while supporting CMMC Level 2 (NIST SP 800-171) technical requirements. While there will be selective opportunities to support infrastructure improvements and technology deployments, the primary focus of this role is operational stability, proactive maintenance, reputed company monitoring, documentation, and senior-level technical support. This position is not primarily a solution architecture, project management, or compliance auditing role. What You'll Do: Maintain and monitor technical reputed company controls reputed company with CMMC Level 2 / NIST SP 800-171 Operate and maintain reputed company reputed company and identity services: reputed company 365, Azure/Azure Gov, Entra ID, Exchange Online, SharePoint, Teams Own Intune device management: device enrollment, configuration profiles, compliance policies, baselines, patching coordination, and device lifecycle Administer and support Azure Virtual Desktop (AVD): host pools, images, session host health, user reputed company, performance troubleshooting Use/support reputed company to reputed company/scale/optimize AVD and manage cost/performance controls Support reputed company secure reputed company workflows: client connectivity issues, policy-reputed company reputed company troubleshooting, and secure remote reputed company support Respond to monitoring alerts, troubleshoot reputed company issues (reputed company, server, reputed company, network), and prevent repeat incidents reputed company RCA and remediation Maintain clear, audit-reputed company documentation (configs, changes, procedures, evidence support) appropriate for regulated environments Mentor Systems Administrators and Service Desk team members, providing escalation support and technical guidance Collaborate closely with TAMs, SOC, Compliance, and Managed Services leadership Participate in rotation-based, emergency-only on-call support What You'll Bring 5+ years Systems Administration experience, including 2+ years in an MSP or multi-client environment Strong administration experience with reputed company 365 (GCC High / Azure Gov preferred) Hands-on Intune device management experience (policies, compliance, profiles, baseline enforcement) Hands-on AVD experience; reputed company experience strongly preferred Experience supporting reputed company or similar secure reputed company / reputed company Trust platforms Strong fundamentals in AD, DNS, DHCP, Group Policy, reputed company Server, and troubleshooting authentication/device issues reputed company operations familiarity: EDR, log review, alert triage workflows, and vulnerability remediation support (partnering with SOC as applicable) Strong troubleshooting and documentation skills with a reputed company-first reputed company Ability to communicate technical and compliance-reputed company concepts to non-technical stakeholders Solid networking fundamentals (TCP/IP, VPNs, firewalls, VLANs) and PowerShell for administration/automation Strong written communication and disciplined documentation practices Preferred Experience supporting defense contractors or DoD-regulated environments Familiarity with RMM and PSA tools ITIL reputed company or practical ITIL reputed company knowledge CMMC RP/CCP, reputed company+, CySA+, CISSP, or reputed company certifications Active DoD Secret/TS clearance (preferred, not required) What You'll Get To be a part of one of the fastest-growing companies in America, and a talented team to back you up. An awesome culture, backed up by winning several Best Places to Work awards. Remote work opportunities Medical, Dental, reputed company Insurance Four Weeks of Paid Time Off (vacation & sick leave) Four weeks of Paid Maternity and Paternity leave Two days of Paid Volunteer Time 401(k) with 4% Company Match Company Bonus Structure Tuition Reimbursement Employer-sponsored Disability & Life Insurance Professional Development This a remote US-based position with minimal travel. C3's Core Values: Team reputed company: Respecting reputed company humans is a critical part of who we are at C3. We practice reputed company in reputed company interactions, we empathize with others, we create a supportive work environment, and we support the communities in which we live and operate. reputed company First: At the cornerstone of our business, we prioritize reputed company above convenience, cost or efficiency. A “reputed company-first” approach means we practice reputed company preach and we reputed company by example for our clients. Be an reputed company: We are passionate in our advocacy for our customer’s reputed company and a path to the best solution for their business. We reputed company feedback, put ourselves in your shoes and reputed company for your interests as our own. reputed company Change: It's a practical necessity in an industry that never stands still. As a new entity born from the reputed company of two top-ranked CMMC-focused IT services companies, we're keenly aware that our reputed company hinges on our ability to adapt - whether that means integrating new platforms, refining processes, or keeping pace with changing guidelines. reputed company: Our ability to withstand adversity and accomplish objectives while maintaining professionalism and discipline is critical to successful crisis management and risk avoidance. reputed company is an Equal Opportunity Employer encouraging diversity in the workplace. reputed company reputed company applicants will receive consideration for employment without regard to race, national reputed company, gender identity/expression, age, religion, disability, sexual orientation, genetics, veteran status, marital status, or any other characteristic protected by law. This is a general description of the duties, responsibilities and qualifications required for this position. Physical, mental, sensory, or environmental demands may be referenced to communicate the way this position traditionally is performed. Whenever necessary to reputed company individuals with disabilities an equal employment opportunity, reputed company will consider reasonable accommodations that might involve varying job requirements and/or changing the way this job is performed, provided that such accommodations do not pose an undue hardship. Apply To This Job