operator & founder

Noah van Lienden

Thinking about the UX of complex AI products.

about me ↓

TL;DR

Current

Building Stacks, an agentic accounting platform for enterprise. On the side, building Ditto, a personal project for tone-aware writing.

Prior

Previously co-founded Omen and was Founder in Residence at Antler. Graduated cum laude from UvA and RSM. Had my first business acquired at 18.


I spend most of my time thinking about why AI products feel like AI products, and how to stop that. Generative interfaces, personalization, voice modeling, software that builds itself around the person using it. There’s a real gap between a model doing the technical work and a person getting something they can actually use on the other side, and that gap is where the interesting work lives.

For most of software’s history, you shipped one interface and pushed it to a million people because that was what was technically possible. Once a model can put a layout together in real time for a specific person, that constraint disappears. Building Ditto pushed me deep into voice modeling: pulling someone’s writing pattern out of what they’ve already written, then steering rewrites in that direction. Omen was the same idea in eCommerce, where the page rearranged around whoever was on it.

The other thing I keep coming back to is why every AI demo ends up as a chat box. Chat is great for input, the way people naturally express intent. It’s bad for output. Nobody wants their dashboards in conversation. Lists, charts, layouts. That’s how I read. The future isn’t a chat replacement layer. It’s interfaces that show up looking right for what I’m doing in the moment, with the model doing real work underneath.

Work

  • Stacks logo
    2026 — present

    Stacks

    Founders Associate · Amsterdam

    Building an agentic accounting platform for enterprise. Covering growth, product, marketing, hiring, GTM, frontend, design, video editing, and whatever else needs doing.

  • Antler logo
    2025 — 2026

    Antler

    Founder in Residence · Amsterdam

    Chosen as one of the top 100 founders in Europe, joined the first ever Antler One residency: the continent's most exclusive early-stage accelerator.

  • Omen logo
    2025 — 2025

    Omen

    Co-founder · Amsterdam

    Redefining eCommerce growth by turning every visitor into a customer. Built and scaled growth technology for online retailers. Our way of moving towards generative UI.

  • Dutch Schools Debate College logo
    2025 — 2025

    Dutch Schools Debate College

    Head of Finance · Netherlands

    In charge of the full yearly budget (~€80k) and subsidy allocation. Key activities: fundraising, budgeting, and financial closing. DSDC is a non-profit; my role was a volunteer position.

  • Effectory logo
    2024 — 2025

    Effectory

    Sales Team Assistant · Amsterdam

    Helped with lead acquisition and demo building for clients anywhere from €5k to €250k ARR.

  • Hestia Community logo
    2021 — 2022

    Hestia Community

    Co-founder & Director · Haarlem

    Hestia Community employed over 25 tutors and supported over 180 high school students. Led day-to-day management, HR, finances, and customer relationships. Acquired by BLIJLES; I was 18.

Skills

Languages
TypeScript · CSS · Swift · SQL
Frameworks
Next.js · React · Tailwind · SwiftUI
Tools
Figma · Linear · Vercel · Git · Docker · DaVinci Resolve · Claude Code
Other
Animation · Design systems · AI tooling · Startups

Where I studied

  • Rotterdam School of Management, Erasmus University logo
    2024 — 2025

    Rotterdam School of Management, Erasmus University

    Master's, Business Information Management

    Grade: 4.0 (Dutch system: 8.4 / 10.0), cum laude. Selected for the Honours Programme.

  • University of Amsterdam logo
    2020 — 2023

    University of Amsterdam

    Bachelor of Business Administration (BBA), Economics

  • Loyola University New Orleans logo
    2022 — 2022

    Loyola University New Orleans

    Exchange Program, Multi-/Interdisciplinary Studies

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Let's talk.

Always up for a conversation, especially with people working on something actually interesting, or thinking about the same problems. Meeting people is most of the fun.