Senior Solution Architect, Mattermost

• 10+ years of experience in a customer-facing technical role (Solution Architect, Pre-Sales Engineer, Sales Engineer, or Systems Engineer) within B2B software or cybersecurity
• Experience supporting public sector, defense, or critical infrastructure environments preferred
• Strong knowledge of enterprise infrastructure, including Linux, networking, reverse proxies, TLS, APIs, and modern web technologies
• Experience integrating applications into enterprise security stacks and identity environments (SSO, SAML, OIDC, LDAP, directory services)
• Demonstrated experience designing and delivering mission-critical solutions with high security, availability, and compliance requirements
• Ability to translate complex, sometimes security-sensitive requirements into clear architecture designs and implementation roadmaps
• Excellent communication skills in German (near-native) and English (business fluent), with the ability to engage both technical and executive audiences
• Experience collaborating with hyperscalers, system integrators, and technology partners on joint customer engagements
• Proficiency with structured selling methodologies such as MEDDPICC
• Willingness to travel within DACH, Benelux, Nordics, and Baltic regions
• Experience participating in formal RFI and RFP processes
• Ability to leverage generative AI tools to increase productivity and accelerate solution development

Desirable

• Mattermost is seeking a Senior Solution Architect 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
• 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
• Lead technical ownership of secure collaboration solutions built on Mattermost for defense, public sector, critical infrastructure, and NATO-related organizations
• Run requirements and architecture workshops with IT, security, architecture teams, business units, and executive stakeholders
• Translate operational goals, threat models, and regulatory constraints into scalable, secure solution architectures
• Design end-to-end Mattermost architectures in high-security environments (on-premises and sovereign cloud), including:
• Network integration
• Identity and access management (SSO, SAML, OIDC, LDAP)
• Logging and monitoring integrations
• Data protection and security controls
• Guide customers through the full technical lifecycle: discovery, concept design, proof of concept, pilot, hardening, production rollout, and scale
• Develop and deliver compelling technical demos, workshops, and use-case presentations for mission-critical scenarios such as situational awareness, incident response, and operational coordination
• Own technical responses for RFI/RFP submissions, security questionnaires, and architecture reviews in partnership with Sales, Product, Security, Legal, and Compliance
• Represent Mattermost in engagements with NATO stakeholders, defense contractors, and government authorities
• Ensure solution designs align with applicable security, regulatory, and classified information handling requirements (including German and NATO frameworks)
• Build and grow technical relationships with hyperscalers, technology partners, and system integrators
• Drive partner enablement through training, reference architectures, reusable assets, and joint solution development
• Provide structured feedback to Product and Engineering on roadmap priorities, feature gaps, and competitive insights
• Represent Mattermost at relevant industry and community event