NOT AVAILABLE until: December 2020

I am Lasse

Experienced Fullstack developer seeking challenging projects (📍 Berlin)

About me

Fullstack developer — primarily frontend — with 10 years of experience in planning, programming and deploying a wide range of web apps. I provide the technical and business expertise to bring your projects and ideas to life. I have a good eye for UX/UI, a good problem solver and strive to write high-quality code (simple, structured and maintainable). I welcome challenges and the possibility to get to know new technologies and people.

I speak Danish flag Danish, German flag German and English flag English.

I prefer to work on site with the clients and team.


Some of the technologies I utilize:


  • React
  • Redux
  • Immutable
  • Jest/enzyme
  • CSS-in-JS
  • Storybook
  • Webpack
  • PWA
  • Npm
  • Grunt
  • Sass
  • Gimp


  • NodeJS
  • ExpressJS
  • Flask
  • GraphQL
  • MySQL & Postgres
  • Nginx & Apache
  • MongoDB
  • Next.js


  • Javascript (ES6)
  • Python
  • Php
  • SQL

Beyond this, I have experience with range of other frameworks, libraries, technologies and services, notably: BackboneJS, Bootstrap, Plone CMS, NPM, Websockets, jQuery, Laravel, Linux server configuration and deployment, React Native, Git, Chrome extension development, geospatial data, LeafletJS, Google maps API, Cartodb, Varnish, Memcache, Wordpress, Drupal, responsive first, user experience, Gimp, web accessibility, SEO, Google Analytics, Stripe.


Selected projects I build and/or was part of:

  • Developed (in team and independently) a ReactJS app using test driven development for a e-learning startup in Berlin.
  • Embeddable webshop with using ReactJS, Redux, Webpack, Mysql and Flask with a order/product management backend and advanced data export functionality.
    Customer: Danish Ministry of Higher Education and Science.
    Url: Not publicly available.
  • Custom integration between Cartodb and Podio management tool that displays geodata on different maps. Backend build using Laravel and Mysql.
    Customer: The Foundation for Environmental Education.
  • Web app for finding and viewing verdicts build using BackboneJS, Grunt, Mysql, Flask, Elasticsearch and Docker.
    Customer: Danish Environmental Board of Appeal.
  • Co-developed a portal for exploring digitalized images and artifacts from the museum's collection. Build using Express, ES6, Jade, Scss, Angular and Elasticsearch.
    Customer: The National Museum of Denmark.
  • Build various frontend functionality and UX combining Angular and geodata for a danish housing startup.
    Customer: Bolighed

Open source

I also developed and maintain various open source projets:

  • react-collapse-simple: Simple library for collapsing and expanding content with sliding animation (typescript)
  • react-simple-social: Add all social share links through one simple and lightweight React component.
  • npm-react-module: Boilerplate for developing ReactJS modules using Babel.
  • react-pell2: ReactJS wrapper for Pell WYSIWYG text editor for web.
  • flask-reactjs: Flask, ReactJS/Redux and webpack Boilerplate.
  • flask-scaffolding: Flask Scaffolding featuring Python 3.4, SQLALCHEMY, BackboneJS, RequireJS & Sass (Bootstrap 3).
  • deepl-extension: simple Deepl Chrome extension.

Latest personal project

My latest project is, a developer service that adds code improvements tips as comment on each github commit. It is build with an isomorphic express setup using ReactJS and GraphQL:

Gitdude screenshot