Tech Founder Stack

What Is Good Product Management?

An Engineer’s Perspective

Dec 21, 2025 • Mathias Klenk

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Why Startups Die

Startups rarely die from competition. They die from the inside.

Dec 6, 2025 • Mathias Klenk

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November 2025

Everyone is a builder now

Something different is happening in software teams right now.

Published on Design + AI • Nov 23, 2025

The Importance of Network Effects for Startups

The Invisible Flywheel Powering the World’s Fastest-Growing Startups

Nov 9, 2025 • Mathias Klenk

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October 2025

Market Always Wins

Finding Strong Product-Market Fit for Your Startup

Oct 26, 2025 • Mathias Klenk

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Agentic Engineering: How AI Agents Are Reshaping Software Development

From Prompts to Production: Inside the World of AI-Driven Development

Oct 5, 2025 • Mathias Klenk

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September 2025

Rethinking the 10x Engineer: From Developer to Force Multiplier in the Age of AI

What it really means to be a 10x engineer today

Sep 28, 2025 • Mathias Klenk

How to Interview Engineering Candidates in 2025

The new playbook for hiring in the age of AI coding assistants

Sep 21, 2025 • Mathias Klenk

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Transitioning from Engineer to Founder – What I Wish I Knew Before

Many engineers dream of launching their own startup, envisioning that their technical brilliance will naturally lead to a great product and a successful…

Sep 14, 2025 • Mathias Klenk

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Technical Debt vs. Product Speed: When to Refactor or Just Ship

A founder’s guide to balancing shipping with long-term technical health

Sep 7, 2025 • Mathias Klenk

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August 2025

Product Engineering: Bridging the Gap Between Product Management and Software Development

How blending product thinking with engineering makes you 10x more valuable

Aug 31, 2025 • Mathias Klenk

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The Right Way of Letting Team Members Go: Signals, Checklists, and Fair Steps

This article should help any founder, manager or leader to recognize when you need to let a team member go

Aug 24, 2025 • Mathias Klenk

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