Builder and growth leader based in Amsterdam. Currently leading growth at Kilo, an open-source coding agent. Previously founded Alphadoc and Onjo AI. I'm hands-on across growth, data, product, and engineering.
15 years experience building and growing venture-scale companies. I've gone from zero to exit multiple times.
“Learn to sell, learn to build. If you can do both, you'll be unstoppable.” — Naval
Ventures
Kilo Code
Open-source AI coding agent.
Alphadoc
Developer experience platform.
Onjo AI
AI agents for GTM.
“Job took our growth from near zero to over 3 million users in 13 months. He’s sharp, direct, and gets things done without needing hand-holding. A strong mix of growth leadership and hands-on execution.”
Speaking
Practical talks on AI, growth, and building from zero to one.
I speak at events, podcasts, panels, and team sessions about applying AI agents in real workflows, building growth systems, and turning technical products into companies people care about.
Work Experience
Head of Growth
Kilo (acquired by Anaconda)
2025 - Present
Co-founder & CEO
Alphadoc
2022 - 2024
Co-founder & CEO
Onjo AI
2024 - 2024
Head of Growth
Marketer Technologies
2021 - 2022
CMO
Founda Health
2020 - 2021
VP Growth
Growth Tribe
2015 - 2020
Early Employee
Rocket Internet / CityDeal (acquired by Groupon)
2010 - 2013
Reading
Open Weights Is All You Need
Why open and closed models need a neutral routing layer.
Kimi K3 + Grok 4.5 Built the Same Database as Claude Opus 5 at 1/25th the Price
The open-model path delivered comparable correctness and crash safety at 4% of the cost.
Auto Model vs Picking Your Own: We Tested Kilo Code's Router on a Backend Build
Auto Model matched manually selected frontier models at less than half the cost.
Why we won't see another DeepSeek moment anytime soon
Frontier-class open models increase demand for scarce compute rather than reducing it.
AI creates jobs. The compute bill is not your problem (yet).
AI-heavy companies are growing headcount while infrastructure spending pressures pricing.
We predicted the $100k/yr-per-dev AI bill. Now the winners are routing around it.
Why model routing is becoming the enterprise cost-control layer for AI coding.
Claude Fable 5 vs GPT-5.5: better planning, similar execution
Claude Fable 5 wrote the sharper plan, but GPT-5.5 matched execution at lower cost.
The GitHub Copilot Bill Came Due. Here's What Engineering Leaders Should Do.
The era of free compute ended, and enterprise teams need model freedom and spend control.
Your Coding Agent Will Get Ripped Out. Build Workflows That Survive It.
Durable AI coding workflows need to survive vendor pivots across tools, models, and surfaces.
AI Agents Are Coming for Every Role
Not to replace you, but to give you super powers.
How I Use Kilo for Slack and Code Reviewer to Scale My Growth Role
Building an interactive pricing calculator with AI coding tools
How Kilo Code uses PostHog to power hyper-fast growth
A customer story on PostHog about scaling growth at Kilo Code
Connect
Feel free to contact me at job@jobrietbergen.com