Amsterdam

Helping developers build better products.

Kate Astrid

Talks

Upcoming

The Automation Paradox

apidays FOST Paris

When AI does the easy work, humans get the hard parts. As machines handle routine cases, people inherit the ambiguous ones: deciding whether an answer is actually right, and practicing less of the skills the system now does. This talk looks at what happens to human judgment, expertise, and decision-making when machines increasingly do the thinking with us.

Conference

Upcoming

Your Brain Runs on Legacy Code

JSNation US · New York and online

Software engineers know that every system carries the weight of past decisions. The human mind is no different. We all run beliefs, habits, and reactions that were written years ago, often for problems that no longer exist.

Session

Upcoming

Certainty: The Bug We Don't Test For

XtremeJS · online

Software engineers are trained to find answers and reach a conclusion. This talk is about what happens when confidence becomes certainty, and certainty stops the questions.

Conference

Upcoming

Your Brain Runs on Legacy Code

Open Source Observability Day · online

Software engineers know that every system carries the weight of past decisions. The human mind is no different. We all run beliefs, habits, and reactions that were written years ago, often for problems that no longer exist.

Conference

Hosted

UXDX Amsterdam lineup, with Kate Astrid hosting

UXDX Amsterdam

Miro, Fred. Roeskestraat 100 · with Steven Roest

An afternoon of practical talks, debate, and hands-on learning for product teams, hosted with Steven Roest from ING.

Event page

Given

Kate Astrid on stage at WeAreDevelopers in San Jose

Your Brain Is Lying to You: Cognitive Biases in Development

WeAreDevelopers World Congress North America · San Jose

We like to think our decisions are logical, but they often are not. Cognitive biases can trick us into choosing the wrong solution, underestimating complexity, or overestimating our abilities.

Session

Given

Kate Astrid giving Your Brain Runs on Legacy Code at apidays Toronto

Your Brain Runs on Legacy Code

apidays FOST Toronto

Software engineers know that every system carries the weight of past decisions. The human mind is no different. We all run beliefs, habits, and reactions that were written years ago, often for problems that no longer exist.

Video

Given

Kate Astrid speaking on the apidays FOST Toronto panel

What will API teams actually look like in 2027?

apidays FOST Toronto · panel with Greg, Vivek, and Mark

A conversation on where API strategy is heading: how far APIs and AI will converge, deterministic versus probabilistic approaches, and the skills teams will need.

Post

Given

Kate Astrid giving Your Brain Runs on Legacy Code at apidays Munich

Your Brain Runs on Legacy Code

apidays FOST Munich

Software engineers know that every system carries the weight of past decisions. The human mind is no different. We all run beliefs, habits, and reactions that were written years ago, often for problems that no longer exist.

Post

Given

Kate Astrid on stage at WebExpo in Prague

A real story: Dropping MUI for clean CSS

WebExpo · Prague

Modern frontend teams often rely on powerful UI frameworks to move fast, but over time those tools can quietly become bottlenecks. This is the story of leaving MUI and rebuilding the component library with CSS and CSS Modules.

Session

Writing

When AI Bias Becomes Our Bias

What happens to judgment when someone agrees with a model too quickly.

Link

Does AI Have Cognitive Biases Too?

Whether a model can already carry a bias before a person agrees with it.

Link

The Leftover Hard Parts

The work that remains after an AI produces a usable piece of code.

Link

The Wrong Question: Why Blameless Culture Builds Better Engineering Teams

After an incident, asking what happened instead of who caused it.

Link

How We Halved Our Playwright E2E Suite

Five changes that cut a slow, flaky Playwright suite roughly in half.

Link

From Chaos to Clarity: Fixing Our Monorepo

Moving one frontend from Craco, tsup, tsdx, and tsx onto Vite.

Link

What To Expect When You Join Epilot

A first-day letter for someone joining epilot.

Link

Have you heard about the anterior midcingulate cortex?

A short note on the part of the brain that chooses the harder task.

Link

Common Cognitive Biases That May Affect Us As Developers

Cognitive biases that show up in how developers estimate work.

Link

Ten Red Flags That Obstruct Systems Thinking

Ten habits that get in the way of seeing a system as a whole.

Link

How to Maintain the Performance of a React Application on a Daily Basis

Checks for keeping a React application's performance steady day to day.

Link

Podcasts

Three from my LinkedIn. Click one and it plays here.

About

Before moving into software, I spent five years in cartography and geodesy, followed by five years as a fashion photographer. I also studied land-use planning and translation. These different paths have given me a lasting curiosity about how things fit together, how complex systems work, and how to make complicated ideas easier to understand.

Outside of work, I'm fascinated by cognitive science and quantum physics, and I'm still drawn to the intersection of technology, science, and art.

I mentor on ADPList. I work in English, speak Dutch at an intermediate level, and am eligible to work across the EU.

A few words from people I have worked with

I was preparing for frontend developer job interviews with Kate. She explains difficult things in a simple way, pays attention to details, and always supports you during the preparation process.
Marina Sysoliatina · LinkedIn
Kate and I collaborated closely on a major, high-stakes project soon after I joined, where I witnessed her exceptional technical depth and reliability. From the moment I joined the team, she made me feel welcome and helped me to integrate properly.
Adeola Adeyemo · LinkedIn

If you want me for a talk or a podcast, email me.