Mattermost provides secure, workflow-centric collaboration for technical and operational teams that need to meet nation-state-level security and trust requirements. We serve technology, public sector, national defense, and financial services industries with customers ranging from tech giants to the world’s largest banks, to the U.S. Department of Defense and governmental agencies around the world.
Our self-hosted and cloud offerings provide integrated workflow automation, AI-acceleration, ChatOps with team messaging, audio calling and screen share on an open core platform vetted and deployed by the world’s most secure and mission critical organizations.
We co-build the future of collaboration with over 4,000 open source project contributors who’ve provided over 30,000 code improvements towards our shared product vision, which is translated into 20 languages.
To learn more, visit www.mattermost.com
We are seeking a dynamic and experienced Senior Manager, HR Operations to lead and scale our HR operations in a fast-growing, mission-driven organization. This critical leadership role will shape the foundation of our HR systems, processes, and compliance, supporting our mission of accelerating innovation in defense, government, and critical infrastructure enterprises. If you are passionate about HR, excited to support a mission-oriented organization, and eager to make a meaningful impact, we’d love to hear from you!
Key Responsibilities
HR Operations & Compliance
-Oversee HR systems, metrics, compensation programs, US benefits administration, and compliance.
-Ensure legal compliance by monitoring and implementing applicable federal and state HR regulations and best practices while supporting Corporate and Culture initiatives.
-Use data and metrics to drive decision-making and continuous process improvement.
-Design and implement scalable HR programs to support organizational growth and evolving business needs.
Organizational Effectiveness & HR Analytics
- Build and maintain HR Dashboards to assess HR performance with metrics to improve organizational effectiveness and drive long-term HR initiatives.
- Partner with senior leaders and cross-functional stakeholders to develop and streamline processes, leveraging AI and technology to improve efficiency and reduce administrative burdens.
- Drive policy and process adoption through change management initiatives across the organization related to HR operations.
- Provide guidance and change management support to the HR team as it relates to system optimization and process efficiencies.
Culture & Team Development
- Foster a high-performing, inclusive, and high accountable remote-first culture that aligns with Mattermost’s mission to advance mission-critical work in Defense, Intelligence, Security and Critical Infrastructure organizations.
- Promote global workforce growth and development, supporting a talented team across diverse geographies.
Qualifications
Required Qualifications
- Bachelor’s degree in HR, Business Administration, or a related field.
- 8-10 years of progressive HR operations experience, with a proven track record of scaling HR functions in companies with 500–1,000 employees.
- Advanced proficiency with HRIS systems, HR technology platforms, and Excel for data analysis and reporting.
- Strong knowledge of HR compliance and employment laws.
- Exceptional communication and interpersonal skills.
Preferred Qualifications
- Experience in mission-driven organizations focused on defense, intelligence, security, or critical infrastructure.
- Ability to leverage AI and technology to streamline HR processes and improve efficiency.
- Strategic mindset with a demonstrated ability to execute in fast-paced, dynamic environments.
Why Join Us?
Comprehensive health benefits.
Remote-first or flexible work environment.
Opportunities for professional growth and development.
Generous PTO and holiday policies.
Be part of a mission-oriented team that drives innovation and impact in critical industries.
If you’re passionate about HR innovation and excited to make a meaningful impact, we’d love to hear from you. Join us in shaping a high-performing team culture that accelerates mission-critical work across the globe!
Mattermost is an EEO Employer. We are a remote-first, open source company.
We are constantly working towards adding more countries/regions to this list, but first we need to make sure we are compliant with local laws and regulations, which takes time.
Mattermost is made up of people from a wide variety of backgrounds and lifestyles. We embrace diversity and invite applications from people from all walks of life. We don't discriminate against staff or applicants based on gender identity or expression, sexual orientation, race, religion, age, national origin, citizenship, disability, pregnancy status, veteran status, or any other differences. Also, if you have a disability, please let us know if there's any way we can make the interview process better for you; we're happy to accommodate!