IT Administrator (Contractor)

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

• Global IT Support: Resolve hardware, software, access issues across all time zones.
• Core Systems Administration: Own and manage Google Workspace, Microsoft 365 (Entra ID, Intune, Exchange, SharePoint), and the Atlassian suite (Jira, Confluence).
• Identity & Access Management: Responsible for IT onboarding and offboarding, provisioning, SSO, and access control.
• Automation: Design and implement workflows using tools like Tines, N8N, or scripting to reduce manual effort.
• Asset & Compliance Management: Maintain software licensing, hardware inventory, vendor coordination, and support compliance efforts for SOC 2 and ISO 27001.
• Security Partnership: Partner with Security to enforce endpoint protection, MFA, and access policies.

Required Skills & Experience

Technical Expertise

• Google Workspace administration (org units, policies, security, access and integration management)
• Microsoft 365: Entra ID (Conditional Access, groups, app integrations), Intune (MDM/MAM, app deployment), Exchange, SharePoint
• Identity: Implementing and managing SAML, SCIM, OAuth 2.0, and SSO integrations.
• Endpoint management: MacOS and Windows 11 in remote environments
• Automation: Practical experience with Tines, Zapier, N8N, and/or scripting (PowerShell, Python, Bash).
• Cloud fundamentals: IAM in AWS and Azure
• Security fundamentals: MFA, endpoint protection, least-privileged access control

Operational Skills

• Proven ability to operate independently in a remote-first environment
• Excellent written communication for policy, runbooks, and non-technical stakeholders.
• Strong troubleshooting across complex systems

Preferred Qualifications

• Experience supporting SOC 2 and/or ISO 27001 compliance efforts
• Apple ecosystem management (Apple Business Manager, MDM)
• Advanced Jira and Confluence administration
• Experience in a fully remote, globally distributed organization

Why Mattermost

• Work on mission-critical systems used by leading organizations worldwide
• Join a remote-first, high-trust team with strong ownership culture
• Opportunity to modernize IT through automation and AI-assisted workflows

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 USDMattermost 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. Apply To This Job