Stefan Gruber
Quick Responder

Stefan Gruber

CTO @ bitmovin
5.0
(6 reviews)
From Engineer to CTO: Scaling Teams, Processes & Careers in Tech
Austria
Speaks English, Italian and German
Active yesterday Usually responds in a few hours

Services

$220 / month

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  1. 1 Free 7-day trial
    No charge until day 7. Cancel anytime.
  2. 2 Ongoing calls + chat
    2 calls per month, unlimited Q&A. Replies in 24 hours or less.
  3. 3 No lock-in
    Month to month, no contract.
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MentorCruise summary

Stefan is the CTO at bitmovin. He has 20 years of engineering experience, including 15 years leading teams, and has scaled engineering organizations from 15 to more than 100 people. He helps engineering managers improve team processes, handle leadership challenges, and make better decisions.

Based on 3 verified mentee reviews

  • Reviewers often praise sessions that lead to concrete progress on current work challenges, including improved team processes and clearer plans.
  • Two reviews point to productive discussions focused on professional challenges and specific areas for growth.

About

🚀 From Engineer to CTO – Now Helping You Get There Too

I’ve spent the last 20 years in engineering – 15 of them leading teams – and I know firsthand how challenging it can be to scale a team, optimize processes, and grow as a leader without losing your mind (or your culture).

As the CTO of bitmovin, a fast-growing scale-up in the media tech space, I’ve:
✅ Scaled engineering teams from 15 to 100+ people
✅ Coached 50+ engineers and managers in transitioning from individual contributors to leaders.
✅ Solved critical challenges like hiring bottlenecks, process inefficiencies, and team conflicts

Why work with me?
I don’t just give advice, I will help you find your own answers. My mentoring style is pragmatic, action-oriented, and tailored to your unique situation. Whether you’re:

A first-time engineering manager struggling with delegation,
A tech lead looking to scale your team without chaos,
OR A CTO or Head of Engineering needing a sounding board for tough decisions
I’ll help you get unstuck, make better decisions, and grow with confidence.

Let’s build something great together.

What mentees say

5 out of 5 stars

Eugene

Eugene

Lite Plan • 1.5 years

Eugene wrote 1 more review for the same mentorship

5 out of 5 stars

I worked with Stefan for several months, and with his help, I have already improved processes in my team and have a plan until the end of the year. Also, I figured out some behavioral mistakes, such as what I'm calling one-on-ones is not really it but more like a performance review, which is quite different.

Eugene

Eugene

5 out of 5 stars

Finding myself in a challenging work situation, I started working with Stefan a few weeks ago. Even in this relatively short time frame, our mentoring sessions have already yielded concrete benefits for handling my current professional challenges. Stefan delivers a well-balanced combination of technical expertise and developmental support, consistently providing actionable advice based on extensive industry experience. For me, his approach strikes an effective balance between mentoring and coaching, while maintaining clear and constructive communication. The comfortable yet professional atmosphere allows for open discussion and meaningful progress. This mentorship has proven to be a valuable investment for my professional development and helped me solve or at least better understand several situations.

Sebastian

Sebastian

Standard Plan • 2 months

5 out of 5 stars

Zack

Zack

Standard Plan • 2 months

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What happens when you start

You tell Stefan your goals. They see exactly what you want to work on before session one.

You meet within days. Stefan reviews your application and books your first session, usually within a day or two.

You leave with a plan. Concrete next steps and a weekly rhythm from your very first week.

Start your mentorship