James McCarthy

Leading with passion. Building with purpose. Father, technologist, team champion.

Role
Manager, Mid-enterprise Sales Engineering at Horizon3.ai
Location
Clayton, CA, US
LinkedIn followers
500 followers

About James McCarthy

I\'m a builder of teams, of strategies, and of lasting customer relationships. I\'ve spent my career helping some of the largest companies in the world solve complex security challenges, leading high-performing Sales Engineering teams, and closing transformational enterprise deals.As Director of Sales Engineering, Americas at Phosphorus, I\'ve scaled a global team, driven record-breaking revenue, and partnered directly with Product and Engineering to shape innovation that customers actually need. Along the way, I’ve helped land and expand partnerships with Fortune 10 leaders, major healthcare providers, and global enterprises.Outside of the deal cycle, I’m a frequent speaker at cybersecurity conferences, a co-host for corporate webinars and podcasts, and a big believer in using thought leadership to open doors and build trust. I also invest heavily in internal enablement, helping SEs and broader teams stay sharp, tell the right story, and move with confidence.At the core, I believe great Sales Engineering is about three things: earning trust, solving problems, and making complexity simple.

Experience

  1. Manager, Mid-enterprise Sales Engineering

    Horizon3.ai

    Jun 2025 — Present · San Francisco, CA, US

Education

  • Western Governors University

    Bachelor of Science, IT Management

Skills

  • IT Management
  • Dhcp
  • Network Security
  • Windows Server 2008
  • Vpn
  • Switches
  • Disaster Recovery
  • Vmware Esx
  • Virtualization
  • Routers
  • Network Administration
  • A+ Certified
  • Desktop Support
  • Operating Systems
  • Microsoft Office
  • Computer Hardware
  • Tcp/Ip
  • Vendor Management
  • Windows
  • Backup Exec
  • Citrix
  • Group Policy
  • Windows 7
  • Iphone
  • Troubleshooting
  • Html
  • Software Installation
  • Microsoft Exchange
  • Networking
  • Hp
  • Security
  • Vmware
  • Server Architecture
  • Management
  • Wan
  • Iis
  • Active Directory
  • Xp
  • Windows Server
  • Windows Server 2003

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James McCarthy — Manager, Mid-enterprise Sales Engineering at Horizon3.ai in Clayton, CA, US | Unifers