Senior Solution Architect, EMEA & APAC (Defense & Public Sector)

Mattermost
GermanyPosted 21 February 2026

Job Description

<div class="content-intro"><div>At Mattermost, we build the #1 collaborative workflow solution for defense, intelligence, security, and critical infrastructure organizations. Trusted by governments, financial institutions, and technology companies, our platform enables secure, efficient operations for the world’s most critical teams.</div> <div> </div> <div>We’re dedicated to empowering organizations to operate with confidence, reducing risks, and accelerating productivity. Guided by our core values of Customer Obsession, Earn Trust, Self Awareness, Ownership and High Impact, we collaborate closely with our customers to deliver solutions that meet complex needs and drive success.</div> <div> </div> <div>To learn more, visit <a href="http://www.mattermost.com/">www.mattermost.com</a></div></div><p style="text-align: left;" data-start="278" data-end="579">Mattermost is seeking a<strong> Senior Solution Architect </strong>to join our EMEA and APAC GTM team. In this role, you will take end-to-end technical ownership of Mattermost-based solutions for customers and partners in Germany and selected Northern European markets, including the Nordics, Baltics, and Netherlands.</p> <p style="text-align: left;" data-start="581" data-end="931">This role focuses on defense, intelligence, public sector, and NATO-related environments. You will combine architectural leadership, stakeholder engagement, hands-on technical delivery, and ownership of key technology and system integrator partnerships to establish secure, self-hosted collaboration platforms in highly mission-critical environments.</p> <h2 data-start="938" data-end="957">Responsibilities</h2> <ul data-start="959" data-end="2879"> <li data-start="959" data-end="1125"> <p data-start="961" data-end="1125">Lead technical ownership of secure collaboration solutions built on Mattermost for defense, public sector, critical infrastructure, and NATO-related organizations</p> </li> <li data-start="1126" data-end="1255"> <p data-start="1128" data-end="1255">Run requirements and architecture workshops with IT, security, architecture teams, business units, and executive stakeholders</p> </li> <li data-start="1256" data-end="1375"> <p data-start="1258" data-end="1375">Translate operational goals, threat models, and regulatory constraints into scalable, secure solution architectures</p> </li> <li data-start="1376" data-end="1671"> <p data-start="1378" data-end="1498">Design end-to-end Mattermost architectures in high-security environments (on-premises and sovereign cloud), including:</p> <ul data-start="1501" data-end="1671"> <li data-start="1501" data-end="1524"> <p data-start="1503" data-end="1524">Network integration</p> </li> <li data-start="1527" data-end="1585"> <p data-start="1529" data-end="1585">Identity and access management (SSO, SAML, OIDC, LDAP)</p> </li> <li data-start="1588" data-end="1627"> <p data-start="1590" data-end="1627">Logging and monitoring integrations</p> </li> <li data-start="1630" data-end="1671"> <p data-start="1632" data-end="1671">Data protection and security controls</p> </li> </ul> </li> <li data-start="1672" data-end="1822"> <p data-start="1674" data-end="1822">Guide customers through the full technical lifecycle: discovery, concept design, proof of concept, pilot, hardening, production rollout, and scale</p> </li> <li data-start="1823" data-end="2022"> <p data-start="1825" data-end="2022">Develop and deliver compelling technical demos, workshops, and use-case presentations for mission-critical scenarios such as situational awareness, incident response, and operational coordination</p> </li> <li data-start="2023" data-end="2193"> <p data-start="2025" data-end="2193">Own technical responses for RFI/RFP submissions, security questionnaires, and architecture reviews in partnership with Sales, Product, Security, Legal, and Compliance</p> </li> <li data-start="2194" data-end="2305"> <p data-start="2196" data-end="2305">Represent Mattermost in engagements with NATO stake ... (truncated, view full listing at source)