The secret place where experienced CTOs, VPs, and Directors of Tech go to exchange insights with real senior peers (no start-ups allowed):
Tech Mastery Unconference
September 15th 10:00 - 18:00 | Amsterdam, The Netherlands
Learn what makes this event different:
- Work with the most experienced tech leaders in Europe
- Opening by a CTO that scaled 6 companies
- Psychological tactics to turn knowledge into action
- Break-out sessions by peers with 20+ years of experience
- Become (even) better at leadership
“Wait… you too?”
You might feel lonely at the top of Tech leadership.
You. Are. Not.
There are MANY experienced people like you, and you’d be surprised how many are willing to share.
In the past years I’ve been priviliged to work with groups where we tackled subjects like:
- Effective tech strategy
- Better communication
- Coping with a commercial CEO
- Improving Tech Leads
- Handling the jerk that keeps your code hostage,
and much MUCH more.
We were able to do this because we had experienced tech leaders in a room where we agreed on confidentiality.
That’s EXACTLY what we’re bringing to this event as well. It’s why we have no sponsors and why limit to 150 people max.
If that sounds like your type of event, read on…
What is an UNconference?
A space where the most experienced masters exchange playbooks.
A place where we know courses and presentations are not the answer, but real interactions with smart experiences peers is what we need.
No fluff.
No theory.
Just real insights for navigating leadership at the highest level.
Amazing people stood up to host the break-outs:
* ex-military
* former Meta, Unity, Adyen, etc.
* someone who rebuild parts of eBay
* a CTO who scaled 6 businesses
They didn’t write any books (yet?),
because they were too busy actually leading teams to success.
Who TF is Martijn Versteeg?
I work with 200+ tech leaders across Berlin, Amsterdam & London. I’ve coached and trained a lot, and my focus will be to make sure you get a guaranteed result.
Here’s what I guarantee: If you show up and give it everything, you will walk away with 10 times the value. If you don’t, I’ll refund you out of my own pocket.
Any input, contribution or question is welcome, feel free to send me a message, LI below.
Meet some of the hosts & co-creators (names link to their LI)
Dmitry Kahrchenko 🇩🇪
ˆOver 200 years of tech leadership experience working in 5 countries(!)
Real leaders will sharing authentic insights. Imagine how refreshing, real, and practical things get when you get to work with people like you.
I vetted everyone, and they are AWESOME.
Topics/Sessions
All of the people above will host interactive sessions. Here are some topics of the featured ones. The sessions will be pitched on the day itself, and you get to decide which you join!
🧠 How not to Become Irrelevant as a CTO
⚖️ Make Smarter Decisions, Faster
🔧 Fix Legacy Without Breaking Everything
🗣 Build Trust Through Storytelling
🧍 Bridge the Tech/Non-Tech Gap
🧘♂️ Leadership Without the Over-Structure
😤 Handle the Brilliant Jerk
⚡️ Theory Into Action
💬 Communicate with Power
📈 Align Tech & Business Strategy
Program
Get your Tickets here (<25 left!)
Tech Mastery Unconference General Admission
General Admission
Join us on Monday Sept 15th. Prices excl. VAT-
Confidential day with peers
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Practical and authentic insights
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All day access
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Great food & Coffee
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Value adding surprises throughout the day
VIP Ticket
Join us on Monday Sept 15th. Prices excl. VAT-
Everything from regular
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Front-row seats to the sessions
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High quality leadership dinner
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Tailored networking experience
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VIP surprises throughout the day
For who?
CTOs, VPs and Directors of engineering with at least 10 years of experience. This is an event for masters. No start-ups.
UNconference?
This is co-created by 88 others like you (see the screenshot). The sessions during the day are all led by other participants, creating a real and intimate day.
The theme is Becoming a better leader.
Topics include
* How to level up your direct reports
* Effective Communication
* Efficient Tech Strategy
And much, much more..
Where?
Amsterdam: Tolhuistuin. We secured a fantastic location. It’s known for great events, multiple participants let us know they had events there in the past, which made us even more confident in the choice. Oh, and you get to go there ON A BOAT :).
Testimonials of our last event:
Our rules:
150 people MAX
When groups get too big attention drifts and a certain barrier starts to appear between audience and speaker/moderator. We keep this intimate with a hard max, which we split into subgroups after the keynote.
Authentic & Interactive
Ever been to a 'look at how cool I am' talk? Just shallow stories about successes? That is not our forte, we like to keep it real, so all our speakers will share authentic stories and guide interaction. This way everything is connected to real life examples on challenges most of recognize (impactful tech leadership, focussed strategy, effectively communicating with others, keeping your calendar under control, and more)
No Sponsors
You're coming out to learn, have fun, and connect with other tech people. Here you can grow, learn & reflect without distraction.
Need help convincing your CEO or HR? Use this draft:
Hi ,
I’d like to request approval to attend the Tech Mastery Unconference 2025 on Leadership. Ticket prices start at €399 (excl. VAT). This event is on September 15th 2025 in Amsterdam at the Tolhuistuin. It will feature top industry experts. I expect to update my knowledge while getting practical tips we can implement immediately. This should positively influence tech, strategy, and innovation.
What’s the ROI?
The Unconference will make us better — because I’ll get access to knowledge I can use to tackle CTO challenges faster and better.
It’ll help me avoid missteps and stay sharp. Here’s why:
1. The sessions are interactive and connect me to >70 years of CTO experience.
2. The host has worked with 200 tech orgs this year — and he’s sharing what actually works.
3. The agenda is crowdsourced (so it’s highly relevant), and the event is sponsor-free — no sales pitches.
Please let me know if you need any further details.
Kind Regards
Travel and parking
Location: Tolhuistuin, IJpromenade 2, 1031 CC Amsterdam, Netherlands
How to get there
Public transport:
🚆 20 minutes (!) from the Schiphol airport to Amsterdam Centraal
🚤 5 minute (free) BOAT RIDE!! from Amsterdam Central train station. Take the free ferry to Buiksloterweg. At the jetty the building is immediately on your left.
Car:
There is two locations to park:
A’DAM Toren : Overhoeksplein 1,1031 KS -> 150m to the building.
Or:
Amsterdam Central, Parking Centrum, Oosterdokstraat 150 -> Take the ferry as mentioned above.