Engineering Value Beyond Code

Crafting Full-Stack Solutions That Matter

Drawing from experience across modern web technologies, cloud platforms, and system architecture, I build end-to-end solutions that create lasting value. My passion for learning and natural curiosity drive me to stay at the forefront of technological innovation.

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Portrait of Jannik Wempe

Don't take my word for it

What Others Say About Me

client

"We have been working with Jannik Wempe in the area of our website programming for many years. He has extensive expertise in this field and is always very solution-oriented. He always keeps his appointment commitments, and he responds very quickly to spontaneous inquiries and change requests. I enjoy working with Jannik - it's fun, and the result of his work exceeds our expectations."

Volker Klatt

boss at Hashnode

"Jannik is one of the smartest engineers I’ve worked with. He deeply understands problems, asks the right questions, and delivers high quality solutions quickly — exactly what a fast-moving startup needs. He’s an invaluable asset to any team."

Sandeep Panda
Sandeep Panda

Co-founder & CTO at Hashnode

client

"We have been working with Jannik for several years. He developed our website and maintains and updates it as needed. In addition to his expertise, he is a good listener, can put himself in the customer's shoes and therefore comes up with quick and adequate solutions or adjustments. A man's a man's a word, a word, that sums up Jannik Wempe perfectly. You are in professional and trusted hands."

Harald Bant

What I've built

Projects

Below are some of the projects that I've worked on. They only include projects that I've done in addition to my day job and with the intent of doing earning money – not for fun or to learn something new.

  • wempe.dev logo

    wempe.dev

    My personal website that you are looking at right now.

    Visit wempe.dev
    website
    ongoing
  • FraudFalcon logo

    FraudFalcon

    Shopify app to help merchants fight fraud and chargebacks. You can create custom rules to detect fraud and block orders automatically.

    Visit FraudFalcon
    Shopify app
    ongoing
  • Octolense logo

    Octolense

    Analytics solution for GitHub actions. Understand which actions and repositories are most expensive. Exited because lack of time to maintain it.

    Visit Octolense
    SaaS
    sold
  • Shoptain logo

    Shoptain

    Shopify app that allows merchants to easily generate SEO metadata using an LLM for products by specifying desired keyword.

    Visit Shoptain
    Shopify app
    done
  • Kitlytics logo

    Kitlytics

    Subscriber analytics for the newsletter platform Kit (former ConvertKit). Understand your audience and grow your business.

    Visit Kitlytics
    SaaS
    paused
  • Glückweiser logo

    Glückweiser

    Headless Shopify shop using Shopify Hydrogen for a store selling handmade products.

    Visit Glückweiser
    eCommerce
    done
  • easy data solution Homepage logo

    easy data solution Homepage

    Consulting, design and development of a webapp that represents the company and allows to book courses.

    Visit easy data solution Homepage
    website
    ongoing
  • easy working landing page logo

    easy working landing page

    Development of a landing page with focus on performance and SEO.

    Visit easy working landing page
    website
    done
  • Kiezapp Rixdorf logo

    Kiezapp Rixdorf

    Development of a PWA that allows newcomers to Rixdorf to get to know the neighborhood using a gamified approach.

    Visit Kiezapp Rixdorf
    PWA
    done
  • klebeki logo

    klebeki

    Design and development of a WooCommerce shop selling clothes for kids and babies with special needs.

    Visit klebeki
    eCommerce
    done

Things I write about

Latest Blog Posts

Why and How to Use Snapshot Tests in AWS CDK
aws aws-cdk

Why and How to Use Snapshot Tests in AWS CDK

7 min read

When I first encountered snapshot tests, I was skeptical. The concept seemed strange, and their benefits weren't immediately obvious. But after experiencing their value firsthand, I've become a convert – and here's why I think you should give them a ...

See all posts

Speaking & Appearances

Tech Talks and Podcast Conversations