---
title: 'Lead Site Reliability Engineer at Mattermost'
canonical: 'https://feeny.ai/job/lead-site-reliability-engineer-mattermost-united-states-je123mpv22h1'
type: 'job'
last_seen: '2026-09-05'
---

# Lead Site Reliability Engineer at Mattermost

- **Company:** Mattermost
- **Location:** United States
- **Posted:** 2026-08-10
- **Last confirmed live:** 2026-09-05
- **Apply:** https://job-boards.greenhouse.io/mattermost/jobs/5385065008

## Job description

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](http://www.mattermost.com/)

Mattermost is seeking an experienced and visionary Lead Site Reliability Engineer (SRE) to guide the architecture, reliability, and operational excellence of the infrastructure powering our secure, mission-critical collaboration platform.

In this role, you will provide technical leadership across our SRE function, driving strategic initiatives for scalability, observability, performance, and automation across cloud and hybrid environments. You will mentor engineers, establish best practices, and collaborate closely with development, security, and operations teams to ensure our customers in defense, government, and critical infrastructure sectors experience exceptional reliability and performance.

Responsibilities Include:

- Define the strategy, architecture, and roadmap for Mattermost’s site reliability engineering function, aligning infrastructure initiatives with product and business goals.
- Lead the design, deployment, and optimization of production-grade containerized workloads, infrastructure-as-code, and compliant cloud environments for regulated domains (e.g., FedRAMP, DoD).
- Establish and evolve observability, monitoring, and alerting frameworks to ensure performance, reliability, and capacity planning at scale.
- Drive incident management processes, including on-call rotations, root cause analysis, and systemic reliability improvements.
- Partner with security and compliance teams to meet data sovereignty, security, and regulatory requirements.
- Champion automation and operational excellence to improve efficiency, reduce risk, and scale operations.
- Oversee cloud cost management and capacity planning to optimize infrastructure spending while meeting performance targets.
- Build and maintain a developer platform that enables fast, secure software delivery and improves application stability in production.
- Mentor and coach SRE team members, fostering a culture of learning, collaboration, and technical excellence.

Requirements:

- BS in Computer Science, Cybersecurity, Software Engineering, or a related technical field, or equivalent experience, with 5+ years of relevant experience in site reliability engineering, DevOps, or cloud infrastructure roles.
- Proven expertise in container orchestration platforms, ideally Kubernetes.
- Extensive experience with infrastructure-as-code, ideally Terraform.
- Strong background in cloud platforms, ideally AWS.
- Demonstrated experience designing and implementing monitoring, alerting, and performance optimization strategies.
- Exceptional troubleshooting and incident management skills for distributed systems.
- Proficiency in at least one scripting or programming language for automation.
- Excellent communication skills with a track record of influencing cross-functional teams.
- Experience leading globally distributed teams in a remote-first environment.

Preferences:

- Familiarity with observability stacks such as Grafana and Prometheus.
- Experience designing high-availability, disaster recovery, and scaling architectures.
- Exposure to GCP and Azure cloud environments.
- Leadership experience in highly regulated industries such as defense, finance, or critical infrastructure.
- Experience with U.S. federal compliance frameworks and authorization processes, including FedRAMP, DoD ATO, NIST 800-53, and related government standards.
- Experience preparing, delivering, and maintaining software offerings through AWS Marketplace and other cloud provider marketplaces (e.g., Azure Marketplace, Google Cloud Marketplace), including packaging, compliance validation, and ongoing operational support.
- Open-source contributions in reliability, DevOps, or infrastructure tooling.
- Certifications in cloud infrastructure, reliability, or DevOps engineering (e.g., CKA, CKAD, AWS Certified Solutions Architect).

## Compensation

Salary range: $145,000 – $200,000

Mattermost takes a market-based approach to pay. Compensation is determined based on skills, experience, qualifications, and work location. Ranges may be updated as market conditions evolve..

U.S. Eligibility & Compliance

This role may require obtaining and maintaining a U.S. government security clearance. Candidates must meet federal eligibility requirements to be considered. For more information visit[Security Clearances — United States Department of State](https://www.state.gov/securityclearances)

Applicants must 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](https://www.bis.doc.gov/) and the[Directorate of Defense Trade Controls](https://www.pmddtc.state.gov/).

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.

## About Mattermost

## Company Overview
- **One-liner**: Mattermost provides a secure, open source collaboration platform for mission-critical work in complex environments, serving enterprise, defense, and government organizations.
- **Entity Type**: Private (open core, subscription-based)
- **Headquarters**: Palo Alto, California, USA (and online at [community.mattermost.com](https://community.mattermost.com))
- **Founded**: 2015 (open source project start)
- **Founders**: Not publicly available in provided sources

## Core Business
- **Primary industry/industries**: Secure collaboration, messaging, workflow automation, sovereign AI
- **Target customers**: B2B, Enterprise, Government, Defense, Critical Infrastructure (ICP: organizations with 2,500+ employees and in-house Dev/Sec/Ops talent)
- **Mission or purpose statement**: “To make the world safer and more productive by developing and delivering secure, open source collaboration software.” [handbook.mattermost.com](https://handbook.mattermost.com/company/about-mattermost)

## Products & Services
- **Mattermost Professional**: Open source (MIT license) messaging platform for teams of 10–50 developers and IT professionals. Self-hosted, with core integrations, archiving, search, and extensibility. [handbook.mattermost.com](https://handbook.mattermost.com/company/about-mattermost)
- **Mattermost Enterprise**: Commercial edition with advanced security, compliance, executive reporting, workflow automation, sovereign AI, and support for large-scale deployments. Includes features like classification banners, data spillage prevention, audit trails, attribute-based access controls, and playbook automation. [mattermost.com](https://mattermost.com/)
- **Key capabilities**: Real-time messaging, channels, audio/screenshare, workflow & playbook automation, Kanban boards, task management, integration platform (open API, webhooks, plugins), sovereign AI agents, Microsoft Teams interoperability. [mattermost.com](https://mattermost.com/)

## Market Standing
- **Valuation/Market Cap**: Not disclosed
- **Key Metric**: Annual Revenue not publicly available; Total Funding not publicly available (private company)
- **Notable Investors/Partners**: Not publicly available in provided sources; strong open source community and partner ecosystem (resellers, system integrators, deployment partners)
- **Growth Signals**: Remote-first company with 70% of R&D staff hired from open source community; used by thousands of organizations globally in 16 languages; trusted by governments, allied militaries, and critical infrastructure entities. [handbook.mattermost.com](https://handbook.mattermost.com/company/about-mattermost) | [mattermost.com](https://mattermost.com/)

## Competitive Advantages
- **Open source core**: Transparency, community-driven innovation, and ability to self-host.
- **Self-sovereign deployment**: Supports air-gapped, on-prem, and private cloud environments – critical for defense and intelligence.
- **Security & compliance**: Zero-trust architecture, classification banners, data spillage prevention, burn-on-read, full audit trails, and sovereign AI (no external dependencies).
- **Workflow automation**: Built-in playbooks, Kanban, and AI agents integrated directly into operational channels.
- **Interoperability**: Integration with Microsoft Teams and other mission-critical tools.

## Strategic Focus
- Accelerating mission-critical collaboration for national security, cybersecurity, and critical infrastructure teams.
- Expanding sovereign AI capabilities (LLM connectivity within customer perimeter) and human-machine teaming.
- Deepening workflow automation and playbook-driven incident response.
- Growing partner ecosystem and enterprise adoption in regulated industries.

## Why Work Here
- **Remote-first culture**: Majority of staff work from home; headquarters is on the internet (community.mattermost.com). Not remote-only – courtesy principle guides communication. [handbook.mattermost.com](https://handbook.mattermost.com/company/about-mattermost)
- **Mission impact**: Work deployed in mission-critical environments supporting defense, intelligence, and cyber organizations worldwide. [mattermost.com/careers](https://mattermost.com/careers/)
- **High-trust, fast-moving environment**: Ideas win on merit; employees wear multiple hats and have broad impact. [mattermost.com/careers](https://mattermost.com/careers/)
- **Leadership principles**: Earn trust, be a multi-tool player, high impact, customer obsession, ownership, self awareness.
- **Engineering culture**: ~70% of R&D staff come from open source community; contributors can transition to paid roles. [handbook.mattermost.com](https://handbook.mattermost.com/contributors/join-us)
- **Perks**: Not detailed in provided sources, but remote-first flexibility and open source community involvement are core benefits.

## Sources
1. [handbook.mattermost.com – About Mattermost](https://handbook.mattermost.com/company/about-mattermost)
2. [job-boards.greenhouse.io – Mattermost Jobs](http://job-boards.greenhouse.io/mattermost)
3. [mattermost.com/careers – Careers Page](https://mattermost.com/careers/)
4. [mattermost.com – Main Site](https://mattermost.com/)
5. [handbook.mattermost.com – Join Us](https://handbook.mattermost.com/contributors/join-us)

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