Full-Time

GRC Manager

Mattermost

Mattermost

51-200 employees

Secure collaboration platform with customizable workflows

Compensation Overview

$139.3k - $168.3k/yr

No H1B Sponsorship

Remote in USA

Remote

Remote-first role; must be located in the United States.

US Citizenship, US Top Secret Clearance Required

Bachelor's

Category
Legal & Compliance (1)
Required Skills
Microsoft Azure
AWS
Risk Management
Google Cloud Platform

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Requirements
  • Bachelor's degree in computer science, information security, or 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
Responsibilities
  • Own and modernize Mattermost's compliance programs across federal and commercial markets
  • Lead readiness, certification, and surveillance cycles across both programs
  • Operate the risk management program end to end — from identification and assessment through 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 improve the quality of recurring compliance work
  • Maintain the control library, system security plans, 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
Desired Qualifications
  • 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

Mattermost provides a secure, customizable collaboration platform designed for technical teams. It offers real-time messaging, file and code snippet sharing with inline syntax highlighting, and workflow automation, all within a platform that can be fully customized and deployed anywhere to meet strict security and data-control needs. The product integrates with essential developer and IT tools like GitHub, GitLab, and ServiceNow, enabling users to run and automate workflows from a single interface. In addition to an open-source version, Mattermost offers premium features such as built-in identity and access controls, granular admin controls, advanced compliance auditing and reporting, and flexible deployment options. Its goal is to help technical teams collaborate more effectively while maintaining strong security and data governance.

Company Size

51-200

Company Stage

Series B

Total Funding

$70.1M

Headquarters

Palo Alto, California

Founded

2016

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Simplify Jobs

Simplify's Take

What believers are saying

  • Virtru partnership on July 28, 2026 expands zero-trust file protection for national security.
  • June 2026 Professional Certification broadens partner enablement across APJ and production deployments.
  • Enterprise Advanced launched in 2025, adding AI agents, workflow automation, and hardened controls.

What critics are saying

  • A reported July 2026 layoff cut about 30 employees, roughly 15% of staff.
  • Slack, Microsoft Teams, and ServiceNow remain stronger defaults for enterprise collaboration workflows.
  • If defense budgets slow, Mattermost's specialized vertical bet narrows revenue to mission-critical niches.

What makes Mattermost unique

  • Open-source, self-hosted deployment keeps Mattermost attractive for sovereign and air-gapped buyers.
  • Enterprise Advanced targets multi-domain secure operations with AI, compliance, and quantum-secure messaging.
  • Professional certifications deepen switching costs by training operators across defense and critical infrastructure.

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Benefits

Fully remote work

Office setup fund

Coworking space stipend

Internet and mobile phone reimbursement

401k

Unlimited vacation

Family & friends days

Async weeks

Health benefits

Global and regional team meetups

Open source Fridays

Community hackathons and events

Growth & Insights and Company News

Headcount

6 month growth

-3%

1 year growth

-2%

2 year growth

-1%
Associated Press
Jul 28th, 2026
Mattermost and Virtru partner to deliver zero trust data protection for national security operations

Mattermost, an open-source collaboration platform for defence and mission-critical teams, has partnered with Virtru, a data-centric security firm, to deliver Zero Trust Data Format technology for national security operations. The integration enables organisations to apply cryptographic file protection within Mattermost workflows, supporting the Department of War's Zero Trust Strategy and CMMC requirements. When users upload files in Mattermost, they can classify them and apply handling restrictions. Virtru then wraps the file in a ZTDF-protected container, enabling encryption and policy-based access controls that persist as data moves across environments. The architecture aligns with DoD Zero Trust principles and standards recognised by the intelligence community. The integration is available now and will be demonstrated at Black Hat USA and DoDIIS Worldwide Conference in August 2026.

PR Newswire
Jul 21st, 2026
Mattermost launches professional certification for engineers operating mission-critical systems

Mattermost has launched its Professional Certification programme across Asia Pacific and Japan. The credential is designed for engineers who deploy and operate Mattermost in mission-critical environments, including defence, critical infrastructure, financial services, and enterprise operations. The certification validates technical expertise in managing secure communications infrastructure. Engineers can demonstrate their proficiency in deploying Mattermost's platform across sensitive operational settings where reliability and security are paramount. The programme expands Mattermost's support for organisations requiring robust communications systems. By offering professional credentials, the company aims to strengthen the technical capabilities of teams managing its platform in high-stakes environments across the region.