Mattermost leadership team collaborating

The People Behind the Platform

Our leaders bring deep domain expertise across military, intelligence, and mission-critical operations—with decades of combined experience at organizations like Microsoft, Cisco, Oracle, Ripjar, Check Point, and the U.S. Department of War.

Customer Obsession
Ownership
Self Awareness
High Impact
Earn Trust
Customer Obsession
Ownership
Self Awareness
High Impact
Earn Trust
Self Awareness
High Impact
Earn Trust
Customer Obsession
Ownership
Self Awareness
High Impact
Earn Trust
Customer Obsession
Ownership

One Team, One Mission

We are one team united in enabling sovereign, secure collaboration and AI-powered automation for the organizations that protect nations and critical systems worldwide.

Go-to-Market Leadership

James Mullins portrait

James Mullins

VP Sales, EMEA & APAC

Based in London, UK. 30+ years selling into international government, military, and intelligence organizations, as well as financial services, telecommunications, and oil & gas. Prior leadership roles at Ripjar (global threat detection), SS8, Narus (network intelligence), and Equiis Technologies — deep expertise in security and intelligence technology markets across NATO-allied and Five Eyes nations.

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Shigeru Harasawa portrait

Shigeru Harasawa

General Manager, Mattermost Japan KK

Based in Tokyo. 25+ years in enterprise technology with leadership roles at Oracle, DataRobot (Japan Country Manager), IBM, Netezza, and DataStax. Leads Japan market entry and JSDF engagement — key to Indo-Pacific defense modernization and "assured cooperation" with allied forces.

LinkedIn
Devanesan Moses portrait

Devanesan "Moses" Moses

VP Customer Enablement & Success

25+ years in cybersecurity post-sales leadership (Claroty, Cybereason, Check Point). Leads global Technical Account Management, professional services, support & partner enablement — maximizing customer value, adoption, and retention for defense, intelligence, and critical infrastructure customers worldwide.

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Leigh Dow portrait

Leigh Dow

Chief Marketing Officer

25+ years driving GTM strategy across cybersecurity, physical security, and defense within national security, technology and global growth. Began on Capitol Hill in the U.S. Senate shaping policy, advancing into government affairs at Intel, leading initiatives across the Dept. of State, immigration, and labor programs. Led global marketing and $1B sales channel at Honeywell Aerospace. VP Global Marketing at Identiv (physical/digital security).

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Global Operations Leadership

Lane McFarland portrait

Lane McFarland

Chief People Officer

15+ years scaling people operations and talent strategy in cybersecurity and enterprise technology. Previously VP People Operations at Flashpoint (threat intelligence); earlier, Director of People Operations at Risk Based Security (acquired by Flashpoint). Experienced in hiring, developing, and retaining staff with security clearances. Ensures Mattermost attracts top-tier national security and critical infrastructure talent across a global, remote-first workforce.

LinkedIn
Kendra Niedziejko portrait

Kendra Niedziejko

Chief Financial Officer

25+ years in finance at high-growth technology companies. Most recently Chief Accounting Officer at MNTN, Inc.; previously CFO at xMatters, Inc. Earlier career includes key roles in the IPOs of OpenTable and E-LOAN. Leads financial operations, FP&A, strategic planning, and growth objectives across Mattermost's global entities.

LinkedIn
Nirosha Ruwan portrait

Nirosha Ruwan

VP Legal

Two decades of leadership across legal, public sector, and business operations. Former attorney at Latham & Watkins and Cleary Gottlieb. Manages corporate legal, compliance, IP, and international subsidiary governance across Mattermost's global entities serving defense, intelligence, and critical infrastructure markets.

LinkedIn
Linda Dalenberg portrait

Linda Dalenberg

VP Corporate Controller

Experienced finance operator with prior roles at MNTN, Everbridge/xMatters (supported $240M M&A), and Kovarus. Owns accounting, financial reporting, payroll, and NetSuite administration — critical to FP&A rigor and investor due diligence readiness.

LinkedIn

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