Hello
I'm Manuel Kruisz
I optimize websites and build web apps.

Fullstack freelance developer based in Austria GMT+2

Services

SaaS Fullstack Development
Need an additional hand for a React, Node or Java based application? I've worked with those technologies for years on large production systems.
Shopify Apps
Are you missing a feature or some functionality in Shopify? We can solve this by building a Shopify app that extends your store's functionality.
Site Speed Optimization
Your website is too slow? Google doesn't like your Core Web Vitals? Your customers are getting frustrated and leave your site? Let's optimize it.

Technologies

Frontend

  • React.js
  • Next.js
  • Gatsby
  • TailwindCSS
  • Styled Components

Backend

  • Java (Spring)
  • Express.js
  • Strapi
  • NetlifyCMS
  • REST
  • GraphQL
  • PostgreSQL

DevOps

  • Docker
  • NGINX
  • Prometheus
  • Digital Ocean
  • AWS

About

Manuel Kruisz

Manuel Kruisz

Experience & Education

  • Freelance Software Engineer
    2020 - ∞
  • Software Engineer
    willhaben.at
    2017 - 2020
    Willhaben is one of the top 10 most visited websites in Austria. It is the dominant classified ads platform of the country. This large microservice system boasts an impressive 8.5 million unique clients per month, 1.8 billion page views per month and hundredths of microservices.
    Main Technologies
    React.js (Next.js)
    Java (Spring)
    Express.js
    Docker
    Prometheus
    SQL
  • 2016 - 2017
    Here I've worked on software for the major insurance companies in Vienna and an email syncing SaaS.
    Main Technologies
    Java (Spring)
    Hibernate
    GWT
    Thymeleaf
    JavaScript
    SQL
  • I studied Software Engineering & Internet Computing with an emphasize on Software Engineering, Distributed Systems and Web Development.
    If you're interested, here is my master's thesis on microservices and image processing.