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Top Secret Cleared IT Desktop Administrator

C3 Integrated Solutions.com

Hybrid

San Francisco

Full Time

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.

About The Role

The Top Secret Cleared IT Desktop Administrator serves as a dedicated, on-site resource for a specific client, embedded within their IT team while remaining under C3’s oversight. This role provides hands-on support across systems and services including Microsoft 365, Azure, Windows OS, and end-user hardware. Responsibilities include daily IT operations, user support, compliance with ISO standards, system documentation, and assisting with migrations, upgrades, and incident response - all while aligning with C3’s standards and processes.

What You'Ll Do

  • Assist with the administration and maintenance of a multi-site environment that includes Microsoft Office 365, Microsoft Azure, Windows operating systems, hardware, software, peripherals, cloud and network-based services, telecommunications, etc.
  • Ensure all work is done in compliance with the ISO 20000 and 27000 management systems.
  • Create and maintain IT procedural and system documentation.
  • Assist with the planning, migration and integration of critical business systems and applications.
  • Support and assist in all areas of laptop and mobile device support; Microsoft O365 account maintenance; build and load Windows operating systems, removes or updates user account information, resets passwords, etc.
  • Responding to user requests, problems and concerns. Implement effective solutions and provide regular updates and feedback to users and managers regarding the status of efforts to resolve more complex problems.
  • Creation, updating and closure of IT related helpdesk tickets.
  • Create system documentation and assist in documenting changes to new and existing system processes and procedures.
  • Provide support with the creation and maintenance of Azure AD groups, Shared Mailboxes.
  • Respond to after-hours network and system outages and other emergencies.
  • Assist with hardware/software upgrades, releases and inventory management.
  • Perform special projects as assigned.

What You'Ll Bring

  • Minimum 4 years supporting corporate IT environments within a structured setting that includes formal processes, change management, and ticketing systems.
  • 4+ years as a System Administrator, with demonstrated responsibility for:
  • User account creation and management in Azure
  • Installation and configuration of workstation operating systems and application software
  • Active Directory and Dynamic Groups administration
  • Utilities management and general systems operations
  • Experience with Microsoft Azure GCC High and Office 365 is required.
  • SharePoint experience is a plus.
  • Hands-on experience with Dell laptops, including hardware support, imaging, staging, deployment, and managing Dell maintenance/support tickets.
  • Microsoft Intune administration and management experience.
  • Microsoft 365 Certified: Endpoint Administrator or equivalent technical certification.
  • Familiarity with ISO 9000, ISO 20000, and ISO 27000 standards.
  • Active Top Secret Clearance required.
  • User account creation and management in Azure
  • Installation and configuration of workstation operating systems and application software
  • Active Directory and Dynamic Groups administration
  • Utilities management and general systems operations

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.
  • 100% remote work environment (U.S.-based)
  • 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

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.

Top Secret Cleared IT Desktop Administrator

Hybrid

San Francisco

Full Time

October 15, 2025

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C3 Integrated Solutions