SRE (Site Reliability Engineer) Team Lead

Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure. 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 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 Teams operate across web, desktop, and mobile, with embedded interoperability for Microsoft Teams, Outlook, and Microsoft 365.

Mattermost is seeking an experienced and visionary Lead Site Reliability collaboration platform.

driving strategic initiatives for scalability, observability, performance, and automation across cloud and hybrid environments. and operations teams to ensure our customers in defense, government, and performance.

Define the strategy, architecture, and roadmap for Mattermost’s site reliability engineering function, aligning infrastructure initiatives with Lead the design, deployment, and optimization of production-grade containerized workloads, infrastructure-as-code, and compliant cloud Establish and evolve observability, monitoring, and alerting frameworks to ensure performance, reliability, and capacity planning at scale. * analysis, and systemic reliability improvements. * Partner with security and compliance teams to meet data sovereignty, security, and regulatory requirements. * 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. * 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 Proven expertise in container orchestration platforms, ideally Kubernetes. * Strong background in cloud platforms, ideally AWS. * Demonstrated experience designing and implementing monitoring, alerting, and performance optimization strategies. * Proficiency in at least one scripting or programming language for Experience leading globally distributed teams in a remote-first environment. * S. government security clearance in the future. S. citizens and eligible under applicable Applicants must meet eligibility requirements for access to export-controlled Experience designing high-availability, disaster recovery, and scaling Exposure to GCP and Azure cloud environments. * Experience preparing, delivering, and maintaining software offerings through AWS Marketplace and other cloud provider marketplaces (e.g., Marketplace, Google Cloud Marketplace), including packaging, compliance Open-source contributions in reliability, DevOps, or infrastructure tooling. * Certifications in cloud infrastructure, reliability, or DevOps engineering (CKA, CKAD, AWS Certified Solutions Architect).

Mattermost is an EEO Employer, we are a remote-first, open-source company.

ensuring compliance with local laws and regulations, which takes time.

national origin, age, disability, pregnancy status, veteran status, or other personal characteristics.