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Senior Systems Administrator

Join Astro Mechanica as a Senior Systems Administrator to ensure secure and reliable systems in a fast-paced aerospace startup.

Location
San Francisco, United States
Compensation
Not disclosed
Level
senior
Type
full time · On-site

Posted by employer 3 hours ago

First seen on Joblaze 3 hours ago

Last verified on the company career page 3 hours ago

What you'll build

  • Administer Microsoft 365 GCC High tenant
  • Manage identity and access through Okta
  • Build and maintain device policies in Microsoft Intune and Jamf
  • Design and maintain network infrastructure
  • Implement and monitor CMMC 2.0 controls

Must have

  • 5+ years of experience as a systems administrator
  • Hands-on experience administering Microsoft 365 GCC and GCC High
  • 3+ years administering Microsoft Intune and Jamf
  • Strong Windows and macOS administration experience
  • Experience with identity platforms such as Okta

Nice to have

  • Experience with AWS GovCloud or Azure Government
  • Linux experience
  • 2+ years of experience working in a startup environment

Practical constraints

  • Ability to work full-time in office, Monday through Friday
  • Must be a U.S. citizen

Requirements

Experience
5+ years
Visa
No sponsorship (stated in posting)

Not disclosed in this posting: compensation.

Benefits

401k Match Flexible Time Off Health Insurance

Joblaze summary

The Senior Systems Administrator at Astro Mechanica is responsible for ensuring the security and reliability of the company's systems, managing everything from Microsoft 365 to network infrastructure. Key skills include experience with Microsoft Intune, identity platforms like Okta, and compliance with CMMC and ITAR regulations. This role is suited for someone with over five years of systems administration experience, particularly in regulated environments, and a collaborative mindset. The company emphasizes a flat structure and values hands-on engineering excellence.

Joblaze insights

  • Listed today — first seen on Joblaze November 6, 2026. Last confirmed on Astro Mechanica's careers page November 6, 2026.
  • Python appears in 16.6% of 2657 comparable senior other roles in United States; Jamf appears in 0.1% of 2657 comparable senior other roles in United States.

Quick facts

Is the Senior Systems Administrator role remote?
No — this is an on-site role in San Francisco, United States.
How much experience is required?
At least 5 years of relevant experience for this Senior Systems Administrator role.
Where is the role based?
Astro Mechanica is hiring for this position in San Francisco, United States.
What's the tech stack?
Joblaze extracted these technologies from the posting: AWS GovCloud, Azure Government, Cisco, Jamf, Microsoft 365, Microsoft Intune.
What seniority level is this role?
Astro Mechanica targets senior candidates for this position.
Is this full-time or contract?
Full-time for this Senior Systems Administrator role at Astro Mechanica.

From the original posting

WHO YOU ARE:

You’re the engineer who keeps our systems secure, reliable and running smoothly behind the scenes. You design things properly the first time, automate anything you do twice, and document everything so others can follow. You’re at home in Microsoft 365, identity platforms, MDM, servers and networks, and you can move between Windows, macOS and Linux without missing a beat. You’ve worked in regulated environments, and you understand that CMMC, ITAR and EAR requirements have to be built into every system from the start. You’re also a strong collaborator: you work closely with the help desk, explain your decisions clearly, and enjoy helping engineers get what they need while keeping our environment compliant.

WHAT YOU’LL DO:

  • Administer and secure our Microsoft 365 GCC High tenant, including Exchange, SharePoint, OneDrive, Teams and Entra ID

  • Manage identity and access through Okta, including SSO, MFA, conditional access and user lifecycle automation

  • Build and maintain device policies in Microsoft Intune and Jamf: configuration profiles, compliance, patching, encryption and app deployment

  • Design, deploy and maintain our Ubiquiti and Cisco network infrastructure, including switching, wireless, firewalls and VPN

  • Manage Windows, macOS and Linux servers and services, both on-premises and in AWS GovCloud or Azure Government

  • Implement and monitor CMMC 2.0 controls, maintain the System Security Plan (SSP) and POA&M, and collect evidence for assessments

  • Ensure systems that store or process controlled technical data meet ITAR and EAR requirements

  • Own backups, disaster recovery, logging and monitoring, and work with our SIEM to investigate and respond to security events

  • Automate routine work with PowerShell, Bash or Python

  • Lead migrations and rollouts of new tools, from planning and testing through user communication

  • Serve as the escalation point for the help desk, and mentor technicians on complex issues

  • Write and maintain system documentation, runbooks, and configuration standards

WHAT WE’RE LOOKING FOR:

  • 5+ years of experience as a systems administrator or systems engineer

  • Hands-on experience administering Microsoft 365 GCC and GCC High

  • 3+ years administering Microsoft Intune and Jamf MDM platforms

  • Strong Windows and macOS administration experience; Linux experience is a huge plus

  • Experience with identity platforms such as Okta and Entra ID, including SSO and MFA

  • Experience designing and managing Ubiquiti and Cisco networks

  • Experience administering a CMMC 2.0 compliant environment

  • Working knowledge of CMMC 2.0, NIST SP 800-171 and ITAR/EAR compliance requirements

  • Experience with AWS GovCloud or Azure Government is a strong plus

  • Scripting and automation skills in PowerShell, Bash or Python

  • Clear communication skills, and an enjoyment of working with others across the company

  • 2+ years of experience working in a startup environment

  • Ability to work full-time in office, Monday through Friday

  • Must be a U.S. citizen

PERKS & BENEFITS:

  • Comprehensive medical, dental, and vision insurance, including Flexible Spending Accounts (FSA)

  • 401(k) program and transparent stock option plan

  • Flexible work environment

Standard company text repeated across Astro Mechanica's postings is omitted here.

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