Empower the people the world relies on

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.

20+ years in U.S. defense and national security sales. At Cisco for 16 years leading operations across Army, DISA, Defense Agencies, Special Operations Forces, Department of War/Intel collaboration, and public sector programs. Previously led U.S. federal and government sales at Zoom, Extreme Networks, and Check Point. Brings deep expertise in mission partner environments, Indo-PACOM operations, SAP/classified programs, and air-gapped deployments.

Shigeru Harasawa is the Country Manager for Mattermost Japan, responsible for driving business growth and go-to-market strategy across the Japanese market. He focuses on accelerating the adoption of Mattermost’s secure collaboration platform among mission-critical organizations in defense, government, financial services, and manufacturing sectors. Shigeru began his career at Oracle before taking on a technical leadership role at Netezza, a data warehouse company later acquired by IBM. He went on to lead Japan market entry and expansion for a series of global technology startups, including DataStax (Apache Cassandra), DataRobot, Vymo and Basetwo AI. With deep expertise in AI, data platforms, and open-source software, he has long served as a bridge between Japanese enterprises and global technology companies, driving business development initiatives that bring international innovation to the Japanese market.

Devanesan Moses is Vice President of Customer Enablement & Success at Mattermost. Moses brings over 25 years of experience in the cybersecurity and enterprise technology industries, with a proven track record of building and scaling world-class post-sales organizations across R&D, Sales, and Customer Success functions. Most recently, he served as Global VP of Technical Services for Claroty, transforming the post-sales customer experience and scaling customer-facing organizations across Technical Account Management, Professional Services, Partner Success, and Operations. Previously, he held leadership positions at Check Point Software Technologies and Forescout Technologies.

Leigh Dow is Chief Marketing Officer at Mattermost, where she leads global brand and growth across defense, intelligence, security, and critical infrastructure markets. Her experience spans Fortune 100 companies and high-growth startups, with deep expertise in technical marketing, public-private partnerships, and public policy.

Leigh is an AI-forward marketing leader, modernizing marketing, building authority, and accelerating pipeline in complex, regulated environments. She brings a strong background in cybersecurity and national security, focusing on positioning technologies that protect organizations against evolving threats.

She holds an MBA in Technology Management and a BS in Geopolitical Strategy

Ajay is the VP, GTM Strategy & Operations at Mattermost, with over 10 years of experience driving strategic programs for companies of all sizes. He brings extensive experience in go-to-market strategy & planning, forecasting, analytics & process improvement through prior roles at Sourcegraph and Teradata, where he led various revenue operations functions. Earlier in his career, Ajay spent several years as a strategy consultant with Deloitte, working on various initiatives to drive long-term growth for Fortune 500 companies.

Ajay received his undergraduate from Babson University,and MBA from Emory University.