Carsten Windler is Director of Platform at Plan A, leading the engineering vision behind the company’s sustainability platform. With nearly 20 years of experience in PHP development and software architecture, Carsten combines deep technical expertise with a passion for fighting climate change through technology.
Before joining Plan A, he held senior engineering and leadership roles at companies including KW-Commerce, bookingkit, and HolidayPirates Group, where he scaled teams, modernised infrastructures, and championed clean, efficient code practices.
A regular conference speaker, author of Clean Code in PHP, and LinkedIn Learning instructor, Carsten is dedicated to improving software quality and advancing green IT practices that make tech more sustainable and human-friendly.
Upcoming Talks
28 May 2026
Even sustainability-minded teams face friction when balancing product roadmaps with greener engineering practices. In doing so, they are missing out on a lot of potential to reduce not only emissions but also costs.
This talk explores how to integrate sustainability into everyday development without slowing delivery. You'll learn practical steps to embed sustainability into existing delivery workflows. We'll discover how to quantify carbon emissions in software and cloud infrastructure and what low-hanging fruits there are to reduce them.
Finally, we discuss what part Product can play in greening your software product, since it's not only about engineering. You'll leave the conference with plenty of ideas and concrete actions for a greener software delivery