Hi, I'm Dennis!

Web developer helping your team getting things shipped.

Picture of Dennis Kortsch in comic style. He says: 'Sup?'

Helping software teams since 2010

Work Experience

Since 2010, I've been helping various companies deliver enjoyable, performant, and accessible user experiences. Some examples:

Bring focus to businesses with Remarkable.
Currently I am working for reMarkable as a Senior Frontend Engineer, building the Enterprise Platform.
Building a search engine with Ecosia.
I assisted Ecosia in scaling their frontend to handle over 10,000 searches per minute. My team is focused on enhancing the search experience with AI.
Doing e-Commerce at scale at Zalando.
I played a key role in rebuilding Zalando's B2B platform. Including integrating a Design System to improve Developer experience and keep the UI consistent.
Enterprise SEO tools at Searchmetrics.
I created AI-assisted content editors for Searchmetrics before AI became a mainstream buzzword.
Tiled screenshot of various websites of projects I've worked on.

Get the help you need

Work with me!

I can support your team as a freelance software engineer and consultant or work on your next project full time.

Anything Typescript & React
I've been working with the Typescript & React ecosystem for over 10 years. Through the years, I've accumulated a lot of experience and know how to build scalable, maintainable, and performant applications.
Fullstack development
I can build your whole application from the ground up. From the database to the frontend, I got you covered.
Production-ready systems
I have experience architecting frontend systems that are secure, accessible, and maintainable at scale. I have created user interfaces for millions of users.
AOE development
In video games, Area of Effect (AOE) refers to the radius of an effect. I will try to make the biggest impact possible and elevate your whole team.