C3 Integrated Solutions is a market leader in helping the Defense Industrial Base (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 Security, 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 success in a highly regulated environment. With the final CMMC rule now in effect and demand surging across the industry, this is a pivotal moment to join our team. You'll be at the center of scaling a marketing engine that not only drives growth but also strengthens national security by empowering contractors to meet critical compliance standards.
If you're looking for an opportunity to build, innovate, and make an immediate impact — while working alongside a passionate team of experts — C3 is the place to do it.
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The Systems Administrator supports the operation and maintenance of managed cloud, endpoint, and infrastructure platforms. This role performs systems administration tasks, troubleshooting, and maintenance activities that help ensure client environments remain stable, secure, and compliant with CMMC Level 2 (NIST SP 800-171) practices.
This position focuses on executing defined systems administration work across Microsoft cloud services, identity platforms, endpoint management systems, and supporting infrastructure. Responsibilities include implementing configuration changes, performing maintenance tasks, responding to operational alerts, and resolving technical issues across managed environments.
The Systems Administrator works within established processes and standards and the supervision of the Senior Systems Administrators to support the reliable and secure operation of managed systems.
Hours are Monday-Friday, 8am-5pm ET, and providing on-call/after hours, including weekends, when necessary.
What You'll Do:
- Perform administrative tasks within Microsoft 365, Azure/Azure Gov, Entra ID, Exchange, SharePoint, and Teams environments
- Implement configuration changes and maintenance activities across managed systems and platforms
- Manage endpoints using Microsoft Intune (device enrollment, configuration policies, and compliance remediation)
- Support Azure Virtual Desktop (AVD) environments and manage user access and operational maintenance
- Troubleshoot infrastructure, cloud, endpoint, and network issues escalated from the Service Desk or monitoring systems
- Respond to monitoring alerts and assist with incident resolution
- Support secure access technologies such as Zscaler
- Perform routine system maintenance, updates, and operational tasks
- Maintain accurate technical documentation and operational records
- Collaborate with Service Desk, Security, Project, and Compliance teams to support managed environments
- Participate in rotating emergency on-call support
What You'll Bring
- 3+ years Systems Administration experience
- Experience with Microsoft 365 and Azure administration
- Experience with Intune device management
- Strong knowledge of Windows Server, Active Directory, DNS, DHCP, and networking fundamentals
- Strong troubleshooting and documentation skills
- Experience working in MSP or multi-client environments
Preferred
- Azure Virtual Desktop or Nerdio experience
- Familiarity with security tools such as EDR platforms
- Security+, Microsoft, or other relevant certifications
- Experience supporting regulated environments (CMMC / DoD)
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, Vision 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 Human: Respecting all humans is a critical part of who we are at C3. We practice integrity in all interactions, we empathize with others, we create a supportive work environment, and we support the communities in which we live and operate.
- Security First: At the cornerstone of our business, we prioritize security above convenience, cost or efficiency. A “security-first” approach means we practice what we preach and we lead by example for our clients.
- Be an Advocate: We are passionate in our advocacy for our customer’s success and a path to the best solution for their business. We embrace feedback, put ourselves in your shoes and advocate for your interests as our own.
- Embrace Change: It's a practical necessity in an industry that never stands still. As a new entity born from the merger of two top-ranked CMMC-focused IT services companies, we're keenly aware that our success hinges on our ability to adapt - whether that means integrating new platforms, refining processes, or keeping pace with changing guidelines.
- Resilience: Our ability to withstand adversity and accomplish objectives while maintaining professionalism and discipline is critical to successful crisis management and risk avoidance.
C3 Integrated Solutions is an Equal Opportunity Employer encouraging diversity in the workplace. All qualified applicants will receive consideration for employment without regard to race, national origin, 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 provide individuals with disabilities an equal employment opportunity, C3 Integrated Solutions 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.