About the role

Aplyr's Quick Take

This role is about managing technical relationships with enterprise clients, ensuring they successfully deploy and optimize the Mattermost platform. It's a customer-facing position that requires a mix of technical expertise and relationship-building skills, focusing on infrastructure and cybersecurity.

Good fit

Ideal candidates have a strong technical background in infrastructure and DevSecOps, along with experience in customer-facing roles. You should be comfortable working with enterprise clients and have a collaborative, problem-solving mindset.

Worth noting

The role emphasizes a high level of technical leadership and advocacy, which may appeal to those looking to influence product and engineering teams. The focus on enterprise and public sector clients suggests a stable but potentially high-pressure environment.

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 Senior Technical Account Manager (TAM) is a customer-facing technical leader responsible for ensuring the successful deployment, integration, and operational success of the Mattermost platform for enterprise and public sector clients across the United Kingdom.

This role requires strong technical expertise in infrastructure, cybersecurity, and DevSecOps, combined with the ability to build trusted relationships with customers across multiple regions and languages. The TAM serves as a trusted technical advisor—partnering with engineering, product, and customer teams to ensure reliable, secure, and scalable deployments of Mattermost.

Key Responsibilities

Customer Success & Technical Delivery

Lead onboarding, deployment, and optimization of Mattermost for strategic enterprise customers.
Design and validate scalable architectures for cloud, hybrid, and on-premise deployments.
Guide customers on integrating Mattermost with identity providers (SSO, SAML, OAuth, LDAP), CI/CD pipelines, and monitoring tools.
Support adoption across distributed teams by ensuring high reliability, security, and performance.
Provide proactive technical guidance to prevent issues and optimize system architecture.

Technical Leadership & Advocacy

Serve as the primary technical advisor for assigned customer accounts.
Work closely with Product, Engineering, and Support teams to resolve technical challenges.
Capture customer insights and feedback to influence product roadmap and feature development.
Develop documentation, deployment templates, and automation assets to support customer success at scale.

Communication & Stakeholder Management

Communicate complex technical concepts clearly to both technical and non-technical audiences.
Build trusted relationships with stakeholders across UK
Conduct technical workshops, architecture reviews, and implementation planning sessions.
Maintain documentation of deployment architectures, customer requirements, and feedback.

Required Qualifications

5+ years experience in Technical Account Management, Solutions Engineering, DevOps Engineering, or a similar technical customer-facing role.
Strong expertise in Linux, networking, containers (Docker/Kubernetes), and cloud infrastructure.
Experience with scripting or development (Python, Go, Bash, Node.js, or similar).
Familiarity with DevOps and CI/CD tools (GitHub/GitLab, Jenkins, Terraform, Jira).
Strong understanding of cybersecurity best practices and secure system design.
Proven ability to manage enterprise technical relationships and complex implementations.
Applicants must meet eligibility requirements for access to export-controlled information as defined by U.S. export control laws, including EAR and ITAR.
Fluent English (written and spoken) required.
Excellent communication and stakeholder management skills.
Must be authorized to work in the United Kingdom.

Preferred Qualifications

Experience supporting public sector, defense, or regulated industries.
Familiarity with compliance frameworks such as ISO 27001, SOC 2, GDPR, NIS2, or UK NCSC security guidance.
Experience supporting air-gapped or highly secure deployments.
Existing or eligibility for security clearance such as UK Security Clearance (SC), French defense clearance, or NATO Secret clearance.
Experience with mobile device management platforms (Intune, MobileIron, Workspace ONE).
Experience working in a startup or high-growth SaaS environment.

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.

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.

Skills & Tags

node python go rust aws kubernetes docker ai

Aplyr's read

Mattermost is an open-source collaboration platform attracting tech-savvy professionals focused on secure, customizable team communication and project management solutions.
Synthesized from recent postings & public sources

What's promising

•Mattermost's open-source nature allows for high customization and flexibility.
•The platform is designed with a strong focus on security, appealing to defense and government sectors.
•Mattermost integrates seamlessly with a wide array of tools, enhancing productivity.

What to watch

•The open-source model may require more technical expertise from users.
•Competition from established platforms like Slack and Microsoft Teams is intense.
•Limited public information about the company's financial health and growth trajectory.

Why Mattermost

•Mattermost offers a self-hosted option, ensuring data control and privacy.
•The platform is particularly tailored for high-security environments, such as government and defense.
•Mattermost's open-source community actively contributes to its development and innovation.

Aplyr’s read is generated by AI from public sources. Was it useful?

About Mattermost

Mattermost

mattermost.com

View company

Mattermost is an open-source collaboration platform designed for team communication and project management. It provides messaging, file sharing, and integrations with various tools to enhance productivity.