Senior Manager, HR Operations

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 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. This is an IC role that will act as a strong right-hand to the VP, People, and responsible for influencing and operationalizing the HR Operations strategy. 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 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.