Mattermost

We’re helping the world build better software by aligning teams, tools, and processes at each stage of the development lifecycle. Our customers use Mattermost to increase their productivity, build and execute scalable workflows, and collaborate outside of code — all while contributing to a shared, flexible, and extensible platform built just for them.

We’re committed to open source and our community of over 4,000 contributors worldwide. At Mattermost, you get to build open source software benefiting thousands of companies, institutions, schools, and nonprofits around the globe.

24 Feb, 2026
Mattermost USA
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.   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.   To learn more, visit  www.mattermost.com Mattermost is seeking a Director of Marketing & Channel Programs to serve as the orchestrative project and program manager, driving excellence in how the marketing organization plans, executes, and delivers results and how channel programs are implemented across the business ensuring programs run...
21 Feb, 2026
Mattermost USA
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.   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.   To learn more, visit  www.mattermost.com We are not hiring a traditional SEO specialist. We are hiring an AI-native digital operator who treats AI as infrastructure — not novelty — and owns the website as a performance engine. If you casually experiment with AI, this is not the role. If you design AI workflows, build automations, and...
21 Feb, 2026
Mattermost Toronto, Ontario, Canada
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.   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.   To learn more, visit  www.mattermost.com We are not hiring a traditional SEO specialist. We are hiring an AI-native digital operator who treats AI as infrastructure — not novelty — and owns the website as a performance engine. If you casually experiment with AI, this is not the role. If you design AI workflows, build automations, and...
18 Feb, 2026
Mattermost USA
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.   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.   To learn more, visit  www.mattermost.com Mattermost is seeking a visionary Staff Software Design Engineer (SDE) in Testing Infrastructure to lead a company-wide transformation of test automation and quality engineering . In this highly visible role, you will serve as the technical lead for software testing and quality , partnering directly...
18 Feb, 2026
Mattermost USA
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.   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.   To learn more, visit  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...
14 Feb, 2026
Mattermost USA
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.   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.   To learn more, visit  www.mattermost.com We are seeking an experienced and results-driven Federal Account Manager (AM) who is collaborative, territory-aligned sales role that operates alongside Federal Account Executives (AEs). AMs independently manage defined Federal expansion and renewal motions while exercising sound judgment on when to...
14 Feb, 2026
Mattermost United Kingdom
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.   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.   To learn more, visit  www.mattermost.com Mattermost is seeking a Commercial Account Manager (CAM) – EMEA to support and accelerate commercial growth across the region. This is a collaborative, territory-aligned sales role that operates alongside Account Executives (AEs). The CAM independently manages defined commercial sales motions...
14 Feb, 2026
Mattermost Germany
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.   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.   To learn more, visit  www.mattermost.com 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....
14 Feb, 2026
Mattermost United Kingdom
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.   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.   To learn more, visit  www.mattermost.com Mattermost is seeking a strategic, high-impact Strategic Partner Manager to drive our expansion within the most secure environments on earth. Based in the UK, you will lead our engagement with Hyperscalers, System Integrators and specialised technology partners to deliver secure collaboration...
13 Feb, 2026
Mattermost United Kingdom
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.   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.   To learn more, visit  www.mattermost.com Mattermost is hiring a  Senior Security Engineer to play a key role in safeguarding our company, SaaS platforms, and IT infrastructure. As a vital member of our Security team, you'll collaborate with a globally distributed group of top talent to design, monitor, and implement security processes that...
09 Feb, 2026
Mattermost USA
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.   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.   To learn more, visit  www.mattermost.com Mattermost is seeking a Senior React Native Engineer to join our mobile engineering team and build resilient mobile experiences for mission-critical industries like defense, intelligence, and critical infrastructure. This is not a feature development role: you'll be focused on the networking,...
01 Feb, 2026
Mattermost Tokyo, Japan
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.   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.   To learn more, visit  www.mattermost.com As a  Senior Account Executive for Japan, you will be the primary driver of Mattermost’s growth in one of our most strategic markets. We are seeking a high-caliber sales professional with over  10 years of experience in enterprise and channel sales. In this role, you will utilize your extensive network...