LEAD IT SYSTEMS ADMINISTRATOR

TEKsystems
$135,000.00 - $195,000.00 / yr
paid holidays
United States, California, Torrance
May 22, 2026
Description Key Responsibilities Own the end-to-end IT infrastructure across cloud, endpoint, and networking environments Architect, deploy, and manage Microsoft 365 GCCH and AWS GovCloud environments aligned to defense requirements Serve as the primary technical owner for implementation of NIST SP 800-171 and CMMC controls across all systems Manage and secure a multi-OS fleet (Windows, macOS, Linux) using MDM and identity-driven access controls Own and scale the engineering toolchain infrastructure, including PLM systems, version control, collaboration platforms, and internal AI/LLM environments Design and maintain secure networking architecture (firewalls, VLANs, VPNs, identity-based access) with scalability in mind Establish and maintain backup, disaster recovery, and patching strategies for all systems Automate system administration, user lifecycle management, and infrastructure deployment through scripting and tooling Provide high-level technical support to engineering and operations teams, resolving complex issues and eliminating blockers Plan and scale IT infrastructure to support rapid headcount growth and increasing mission complexity Skills Windows, System administrator, microsoft, AWS GovCloud, Microsoft 365 GCCH, Infrastructure, Windows server, Linux, Cloud, Windows administration, Configuration management, Aws, Office 365 Top Skills Details Windows, System Administrator, Microsoft, AWS GovCloud, Microsoft 365 GCCH Additional Skills & Qualifications Qualifications and Skills 5+ years of experience in IT systems administration within defense, aerospace, or high-performance engineering environments Deep hands-on experience with Microsoft 365 GCCH and secure cloud environments (AWS GovCloud preferred) Strong experience managing Windows, macOS, and Linux systems at scale Proven ability to design and implement secure networking architectures Experience implementing and maintaining NIST SP 800-171 and/or CMMC compliance frameworks Strong experience in identity and access management, MDM, and endpoint security Experience supporting and maintaining engineering toolchains (PLM, version control, Jira, etc.) Proficiency in scripting (Python, Bash, PowerShell) for automation and system management Ability to operate independently in a high-ownership, low-structure environment Experience Level* Expert Level Job Type & LocationThis is a Permanent position based out of Torrance, CA. Pay and BenefitsThe pay range for this position is $135000.00 - $195000.00/yr. Full benefits - 7 paid holidays, medical, dental vision, equity, bonuses Workplace TypeThis is a fully onsite position in Torrance,CA. Application DeadlineThis position is anticipated to close on May 31, 2026. About TEKsystems We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company. The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. About TEKsystems and TEKsystems Global Services We're a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We're a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We're strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We're building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com. The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records. Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability. Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.