Sales & leadership
Nearly a decade at Verizon, coaching teams and growing through management roles.
How I LeadLeader. Runner. Builder. Speaker.
Dream big.
Make the sacrifices.
And when it gets hard,
do it anyways.
I’m John Castor.
A sales leader, marathon runner, and founder. I speak about leading people, starting over, and putting AI to work. Faith and family keep me grounded.
Sales LeaderMarathonerAI BuilderFounderSpeaker
The work behind the words
Two finish lines
My first marathon. Three weeks later, my business degree.
The Running StoryA runner’s own app
The first time I ran with Kouri on my iPhone, an idea became something I could use.
Inside KouriMy story
From my mother’s salon to what comes next.
I grew up in Haiti and came to America as a kid. In my mother’s salon, I started by cleaning and ended up helping with the register, inventory, and technology. I was learning how a business worked before I had a name for it.
That curiosity followed me into sales, leadership, and building software. Running taught me how to keep a promise to myself. Fatherhood gave those promises a bigger purpose.
Read My StoryWhat I’m building
Training that makes sense to the runner.
Kouri brings training plans, run tracking, and coaching together on iPhone and Apple Watch. It grew out of the questions I had while learning to train.
It’s in active development, and I use my own runs to help shape it.
Explore the ProjectsPlan & Stats · Tap a screen to explore. Captured from the app using a QA profile.
Speaking
Leave with a next step you believe in.
I talk about adapting when plans fall apart, earning trust as a leader, and using AI to build something useful. The stories come from my life. The point is what people can do with them in theirs.
What grounds me.
Four pillars. A life with room for what matters.
Faith
Remember what grounds me.
Faith helps me stay grateful and remember that my plans aren’t the whole picture. I try to carry that perspective into how I work and how I treat people.
Family
Be present.
I want to be a husband and father my family can count on. Building a future for them matters, and so does being here with them now.
Fitness
Take care of myself.
Running changed how I see myself. I’m still learning to train well, recover, and take care of the body I’m asking so much of.
Finance
Money is a tool.
I want to build stability for my family and have more say over how I spend my time. That’s what makes the work of building and owning something worth it.
The goal is freedom to live with purpose and be there for the people I love.
For your team
Have a problem worth working on?
My background brings together sales, customer relationships, team leadership, and practical technology. If that’s what your team needs, let’s talk.
Work With Me