GRC Manager

About Mattermost

Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure sectors. Trusted by the U.S. Department of War and Fortune 500 companies, their platform operates on-premises and in private clouds, providing secure messaging, file sharing, workflow automation, audio/screenshare, and project management with full data and operational control. Mattermost empowers high-stakes workflows across mission planning, real-time operations, DevSecOps, incident response, and cyber defense, enabling secure collaboration from tactical edge environments to enterprise HQ. The platform offers web, desktop, and mobile access with embedded interoperability for Microsoft Teams, Outlook, and Microsoft 365. Learn more at www.mattermost.com.

About the Role

Mattermost is hiring a GRC Manager to own and modernize its governance, risk, and compliance program across both federal and commercial markets. This is a program-ownership role designed for a professional who brings a modern, engineering-led approach to compliance, leveraging GRC engineering and AI to minimize manual effort and scale programs. You will be fully accountable for Mattermost's end-to-end compliance posture, including federal readiness and commercial certifications, and will be responsible for transforming how these programs are run: automated, continuously monitored, and AI-native. This role involves hands-on compliance work, coordinating with internal engineering, infrastructure, and IT stakeholders, external auditors, and customers.

What You'll Do

• Own and modernize Mattermost's compliance programs across federal and commercial markets.
• Lead readiness, certification, and surveillance cycles for both programs.
• Operate the risk management program from end-to-end, covering identification, assessment, treatment, and acceptance.
• Own the third-party and vendor risk management program, including security assessments and supply chain risk.
• Apply GRC engineering and automation to replace manual evidence collection with continuous controls monitoring.
• Build AI-native workflows to accelerate and enhance the quality of recurring compliance work.
• Maintain the control library, system security plans (SSPs), Plans of Action & Milestones (POA&Ms), and policies.
• Coordinate external audits from scoping through remediation.
• Accelerate deal cycles by owning customer security questionnaires, trust center content, and reusable compliance artifacts.
• Grow and lead the GRC team as the program scales.

What We're Looking For

• Bachelor's degree in computer science, information security, or a related field — or significant professional GRC and compliance experience.
• Proven senior-level experience in governance, risk, and compliance, security compliance, or IT audit, including direct ownership of a certification or authorization program.
• Experience with U.S. Federal standards, including CMMC and NIST series (800-171 / 800-53).
• Experience with ISO 27001 and SOC 2 Type II.
• Experience operating a formal risk management program.
• Experience running a third-party and vendor risk management program.
• Experience owning customer-facing security assurance, including security questionnaires and trust center content.
• Working knowledge of security controls for cloud environments (AWS, GCP, and/or Azure).
• Excellent written and verbal communication skills.

Nice to Have

• Professional GRC certifications such as CISA, CRISC, CISM, CISSP, or CIPP.
• Experience working with AI platforms such as Claude, OpenAI, or Gemini.
• Experience with compliance automation tooling such as Vanta or Drata, and continuous controls monitoring.
• Direct experience applying AI or LLM-based workflows to GRC tasks.
• Proficiency in no-code automation or scripting languages.
• Past success in critical infrastructure industries, including defense, cybersecurity, communications, or manufacturing.

How Success Is Measured

• CMMC Level 2 gap assessment and readiness roadmap delivered within the first 90 days.
• SOC 2 Type II and ISO 27001 audit cycles completed on time without slippage.
• Manual evidence collection replaced with automated, continuously monitored controls.
• Customer security questionnaires and trust center content maintained to unblock deal cycles.
• GRC team grown and operating as a scalable, program-driven function.

Why Mattermost

• Mission-Driven Work: Your contributions directly support organizations and missions relying on secure, reliable collaboration.
• Remote-First Culture: Work from anywhere with a globally distributed, high-trust team built for autonomy and ownership.
• Open Source at the Core: Be part of a vibrant developer community shaping the future of secure collaboration.
• AI-Forward Environment: Actively adopting and building AI-enabled workflows, you'll work with and on cutting-edge tooling.
• Unique Scope: Own the end-to-end compliance program across both federal and commercial markets at a high-growth Series B company.

Compensation

Mattermost takes a market-based approach to pay. The target salary range for this position is $139,254 - $168,318. Actual compensation may vary based on location, skills, experience, qualifications, and market conditions.

U.S. Eligibility & Compliance

This role requires U.S. citizenship. Candidates must be located in the United States and eligible to obtain and maintain a U.S. government security clearance. For more information, visit Security Clearances — United States Department of State.

Applicants must also meet eligibility requirements for access to export-controlled information as defined by U.S. export control laws, including EAR and ITAR. For more information, visit the Bureau of Industry and Security and the Directorate of Defense Trade Controls.

EEO Statement

Mattermost is an EEO Employer and a remote-first, open-source company. They are committed to expanding hiring globally while ensuring compliance with local laws. Mattermost values unique perspectives and welcomes all applicants, assessing candidates based on skills and qualifications without discrimination based on race, religion, national origin, age, disability, pregnancy status, veteran status, or other personal characteristics. Accommodations during the interview process are available upon request.