About ThatMoodyGuy

Hi! I’m John Moody (aka “That Moody Guy”). I’ve been in the tech industry for over 30 years, and I write about the challenges faced by tech leaders in our rapidly changing industry.

I currently serve as an Engineering Manager at Klaviyo with over three years of experience leading the Email Platforms team, which develops our advanced email delivery at scale, realizing $4 million in annual savings. I contributed to the development of next-generation platforms for enhanced customer engagement, leveraging expertise in technology leadership and scalable systems.

Before Klaviyo, I previously served as CTO at Tatango for seven years, where I led a globally distributed, remote-first team and played a central role in scaling the engineering team and optimizing SMS/MMS delivery systems. I was committed to fostering high-performing teams through mentorship, technical strategy, and operational effectiveness.

I live with my wife of 31 years in Medical Lake, WA (just outside Spokane). It’s a beautiful place to live.

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