Lead It Systems Administrator

Position: LEAD IT SYSTEMS ADMINISTRATOR
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 Gov Cloud environments aligned to defense requirements
Serve as the primary technical owner for the 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 Gov Cloud, Microsoft 365 GCCH, Infrastructure, Windows server, Linux, Cloud, Windows administration, Configuration management, AWS, Office 365
Top Skills Details
Windows, System administrator, Microsoft, AWS Gov Cloud, 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 Gov Cloud 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
in identity and access management, MDM, and endpoint security
Experience supporting and maintaining engineering tool chains (PLM, version control, Jira, etc.)
Proficiency in scripting (Python, Bash, Power Shell) for automation and system management
Ability to operate independently in a high-ownership, low-structure environment
Job Type & Location
This is a Permanent position based out of Torrance, CA.
Pay and Benefits
The pay range for this position is $135000.00 - $195000.00/yr.
Full benefits - 7 paid holidays, medical, dental vision, equity, bonuses
Workplace Type
This is a fully onsite position in Torrance,CA.
Final date to receive applications
This position is anticipated to close on Jun 17, 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

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…