Senior IT Systems Administrator (Azure Windows Admin)

CHAOS Industries•El Segundo, CA

6h•$140,000 - $200,000•Onsite

About The Position

CHAOS Industries is seeking a Senior IT Systems Administrator to design, build, secure, and operate the Windows and Azure infrastructure used across the company. The role is responsible for keeping servers, identity services, and cloud workloads reliable, patched, monitored, and compliant in a defense environment where uptime and data protection are critical. The administrator will own the Windows Server and Azure environments, including architecture, patching, monitoring, backup and recovery, and system hardening. As a senior technical lead within IT, this person will set standards, resolve complex systems problems, mentor teammates, and partner with cybersecurity, service desk, engineering, and program teams. The position also leads infrastructure initiatives such as server and cloud migrations, site standups, and environment consolidations, while automating recurring administration. The role includes an on-call rotation, occasional after-hours maintenance, and minimal travel of up to roughly 10%.

Requirements

Bachelor’s degree in Information Technology, Computer Science, Information Systems, or a related field, or equivalent work experience.
At least 7 years of progressive experience administering enterprise Windows Server and Microsoft Azure environments.
Deep expertise with Active Directory, Group Policy, DNS, DHCP, and Microsoft Entra ID identity and access management, including MFA and conditional access.
Experience designing and implementing Azure solutions involving virtual machines, virtual networking, storage, role-based access control, and hybrid connectivity.
Advanced PowerShell scripting skills for automating administration, patching, and reporting at scale.
Experience owning patch management, monitoring, backup, and disaster recovery, including testing restores and meeting recovery objectives.
Experience hardening systems and remediating vulnerabilities in a regulated environment, such as NIST SP 800-171 or CMMC.
Track record of leading infrastructure projects and mentoring other engineers, with strong troubleshooting, documentation, and communication skills.
U.S. person status, as required for access to CUI and export-controlled data (ITAR/EAR).

Nice To Haves

Experience with Azure Government or Microsoft GCC High environments, and with other cloud platforms such as AWS (EC2, VPC, IAM) in multi-cloud or hybrid environments.
Experience with Okta for single sign-on, MFA, and identity lifecycle management, including integration with Entra ID and cloud applications.
Cloud or Microsoft certification such as Azure Administrator Associate, Azure Solutions Architect Expert, or AWS Solutions Architect; or a security certification such as Security+ or CISSP.
Experience with infrastructure as code or configuration management tools such as Bicep, Terraform, ARM templates, or Ansible across cloud platforms.
Experience supporting CMMC, NIST 800-171, or FedRAMP assessments, and an active U.S. government security clearance or the ability to obtain one.

Responsibilities

Architect, administer, and maintain physical and virtual Windows Server environments, including provisioning, configuration, patching, monitoring, and lifecycle management.
Design, deploy, and manage Azure cloud resources, including virtual machines, networking, storage, identity, and monitoring, across commercial and government cloud environments using templates and infrastructure as code.
Administer and improve Active Directory, Microsoft Entra ID, Group Policy, DNS, DHCP, and certificate services, including identity lifecycle, privileged access, MFA, and conditional access policies.
Serve as technical lead and final escalation point for complex incidents, conduct root-cause analysis, and drive permanent fixes.
Mentor and coach junior systems administrators and service desk staff, and establish technical standards, best practices, and peer review.
Lead infrastructure projects from planning through delivery, including site buildouts, server and cloud migrations, and integration of newly acquired environments.
Design and maintain PowerShell and other scripting-based automation for provisioning, patching, reporting, and routine administration.
Own backup, disaster recovery, and business continuity design, including regular restore testing and recovery objectives.
Apply and maintain security baselines such as DISA STIG and CIS benchmarks, remediate vulnerabilities, and work with cybersecurity to close findings.
Support CMMC, NIST SP 800-171, and FedRAMP requirements by maintaining configuration documentation, logs, and access reviews and providing audit evidence.
Review technical designs and changes, follow change control, and communicate maintenance windows and impacts to stakeholders.
Evaluate and recommend tools and technologies, and contribute to the infrastructure roadmap, capacity planning, and budget inputs.
Support Microsoft 365 and endpoint management services, including device compliance and configuration policies, in partnership with the service desk.
Create and maintain system documentation, runbooks, and architecture diagrams.
Participate in an on-call rotation and occasional after-hours maintenance windows for critical systems.
Travel occasionally, up to roughly 10%, to company offices and new sites.