Mike Johnson

Inspirer
DISC Type : id

Chief Technology Officer at Rosarium Health

Simi Valley, California, United States

Overview

Mike Johnson is a co-founder and Chief Technology Officer with deep expertise in full-stack development, specializing in React, Python, and Go. A graduate of Regis University, he has a proven track record of leading engineering teams through major architectural rewrites that significantly improve platform performance. Colleagues describe him as a "genius" and a "code-warrior".

Beyond his technical leadership, Mike follows companies in the gaming and social event industries, such as Riot Games and Evite. His active GitHub profile demonstrates a passion for open-source software and exploring new technologies through personal coding projects. He is mission-driven, focusing his current efforts on technology for social good.

He co-founded a health-tech company that recently secured a seed round to pursue its mission of making homes safer.

Personality Overview

Charming & Persuasive

Fast Adopter

Confident & Optimistic

They measure a product on its merit but can be influenced by strong testimonials.  They don’t mind taking a stand if they believe in something. They usually prefer to drive the conversation.

Topics They Care About

Engineering Leadership
As a CTO and former Director of Engineering, he focuses on recruiting, technical mentorship, and managing teams to execute complex projects and improve processes.
Frontend Performance
He has led successful, large-scale frontend rewrites using React, resulting in dramatically improved Lighthouse scores and a 10% increase in user conversion.
Home Safety Tech
His current venture, Rosarium Health, is focused on building technology to create safer homes, a mission he highlighted after a successful seed funding round.

Media Appearances

Mike has no verified media appearances

Work History

4-2026
Chief Technology Officer at Rosarium Health
6-2023 - 4-2026
Director of Engineering at Vinovest
1-2023 - 6-2023
Director of Engineering at Vestiaire Collective
4-2022 - 3-2023
Principal Engineer at Vestiaire Collective
10-2019 - 4-2022
Principal Engineer at Tradesy

Education

2010 - 2020
Bachelor of Science (BS) from Regis University

More Information

Social Presence :

Prographics :

Exp : 25 Location : Simi Valley, California, United States Job Level : Leadership Designation : Chief Technology Officer at Rosarium Health
URL has been copied!

Insights For Selling To Mike

During A Call Or A Meeting

DO's

  • Look like someone who is on top of their game
  • Clearly address the competitive aspects
  • Keep your pitch focused on the impact but insert some anecdotes into it

DONT's

  • Avoid focusing only on the product or its ROI, keep building trust subtly
  • Don’t be too verbose or overly friendly; a little bit, however, is fine
  • Don’t be very informal even if they are being so themselves

When Cold Calling

When Writing An Email

While Negotiating & Closing

    The secret to closing fast with Mike is

  • Confidence in the product’s value is critical, followed by relationship and a sense of achievement.
  • Will you ever get a clear answer from Mike

  • They will not hesitate to say no if they do not develop conviction.

Insights For Deal Planning

    How fast (or slow) will Mike move?

  • If they develop confidence in your product and you, then they can make fast decisions.
  • Can Mike take some risk or not?

  • If necessary, they have the ability to take risky decisions.

You And Mike

Personality Compatibility


More Profiles

Discover additional public profiles from our index.

Search more profiles

Looking for someone else? Search here for anyone.

Or visit Humantic AI to know more.