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Posted May 5, 2026

IT Administrator (Contractor)

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Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure. Trusted by the U.S. Department of War and Fortune 500s, our platform runs on-premises and in private clouds, delivering secure messaging, file sharing, workflow automation, audio/screenshare, and project management—all with full data and operational control. Mattermost powers high-stakes workflows across mission planning, real-time, real-world operations, DevSecOps, incident response, and cyber defense—enabling secure collaboration from tactical edge and DDIL environments to enterprise HQ. Teams operate across web, desktop, and mobile, with embedded interoperability for Microsoft Teams, Outlook, and Microsoft 365.

To learn more, visit www.mattermost.com

Mattermost is seeking a hands-on IT Administrator (Contractor) to drive day-to-day IT operations and support our globally distributed, remote-first workforce. You’ll be the primary operator across identity, SaaS platforms, and endpoint management—ensuring reliability, security, and scalability of our internal systems.

This role is ideal for someone who thrives in an async, high-trust environment, operates independently, and proactively automates manual work.

Key Responsibilities

Required Skills & Experience

Technical Expertise

Operational Skills

Preferred Qualifications

Why Mattermost

Mattermost takes a market-based approach to pay and pay may vary depending on your location. The successful candidate’s starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. These ranges may be modified in the future.

Posting Range
$150,000$175,000 USD
Mattermost is an EEO Employer, we are a remote-first, open-source company.
 
We are continually working to expand our hiring in more countries and regions, ensuring compliance with local laws and regulations, which takes time.
 
Mattermost values your unique perspective—we welcome all applicants. We encourage individuals from all backgrounds to apply and are committed to assessing candidates based on their skills and qualifications. We do not tolerate discrimination against staff or applicants based on race, religion, national origin, age, disability, pregnancy status, veteran status, or other personal characteristics.
 
If you require accommodations during the interview process, please let us know—we’re happy to assist.
Interested in this role?Apply on iHire