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Hello, I'm Lumen. I'm a full-stack web developer from Germany with a background in engineering. I enjoy building sites & apps. My focus is React, Next.js and Node.js.

About me

I began learning programming at the age of 16 at a student research center. Together with my friends, I participated in several projects for "Jugend forscht", a student and youth competition in the field of natural sciences and technology in Germany. With one particular project, we won the national prize for the best interdisciplinary work. In this project I was responsible for writing the software for a prototype of a process engineering plant. I had my first company when I was 19 with which I helped other people with their computer problems and created websites for them.

After completing school, I pursued a Bachelor of Science in Security & Safety Engineering at the Furtwangen University. Following that, I worked at the Paul Scherrer Institute, the largest research institute in Switzerland, as a radiation protection engineer for over two years. I had many exciting tasks and responsibilities and was learning a lot about radiation protection, but finally slipped into a routine where I felt that I was not able to fully develop my potential and use all of my technical and analytical skills, so I eventually decided to shift my career towards the tech industry and turn my hobby and passion of programming into my profession. I enrolled in the Full-Stack Web Development course at CareerFoundry, and have discovered that this is exactly what I want to do.

My core stack is React, Next.js, Node.js and MongoDB. I offer Backend, Frontend, Full-Stack and Serverless Development. I am currently looking for freelance jobs where I can create beautiful frontends, efficient backends or functional full-stack projects.

My projects

MyFlix

This is a full-stack project with backend and a React application as frontend. User can search and add movies to their list of favorites.

React
Node.js
MongoDB
Bootstrap
Angular

ToDo List

This is a To-do list app based on the Eisenhower Matrix, designed to help you prioritize your tasks and maximize your productivity.

React
Node.js
MongoDB
CSS

X Intelligence

A beatuiful, simple and fully responsive website made for a client.

HTML
CSS
JavaScript

Rickbase

This app shows a list of all characters from the Rick and Morty series loaded from an external API. If you click on a character the character details will open.

HTML
CSS
TypeScript

Akan Name

This project is a simple two page website that features the Akan names and culture. You can input your gender and date of birth and the app will show your Akan name.

HTML
CSS
JavaScript

Chat App

This React Native Chat App allows users to enter the chat room and start chatting with their friends. Users can also share their location and send photos.

JavaScript
React Native
Firebase

Cloud Storage

This is a Google Drive Clone where users can create an account, create folders and upload files. Users can also update their profile and use the forgot password method.

React
Firebase
JavaScript

Recipe App

This is a recipe web app where users can log in, view and search recipes as well as see statistics about the recipes that came up during the search.

Python
Django
JavaScript

Meet

This app will allow users to search for a city and get a list of events hosted in that city. This app was developed to build a serverless, progressive web application with React.

React
Testing
JavaScript

Pokedex

This app shows a list of all pokemons loaded from the RESTful Pokémon API. If you click on a pokemons name a modal with the pokemons picture and details will open.

HTML
CSS
JavaScript
Bootstrap
jQuery

My skills

HTML
CSS
JavaScript
TypeScript
jQuery
React
React Native
Angular
Next.js
Node.js
Git
Tailwind
Bootstrap
MongoDB
Express
PostgreSQL
MySQL
Python
Django
Framer Motion
Firebase
AWS Lambda
C++

My experience

Co-Founder & Partner

Überlingen, Germany

I had my first company when I was 19 with which I helped other people with their computer problems and created websites for them.

2016 - 2017

Information Security Internship

Meersburg, Germany

Establishment of an information security management system (ISMS) according to ISO 27001 together with the IT and QA Departments at Konzept Informationssysteme GmbH

2019

Bachelor of Science

Furtwangen, Germany

I graduated as the best of my semester after 3.5 years of studying Security & Safety Engineering.

2017 - 2020

Radiation Protection Engineer and Deputy Head of Group

Villigen, Switzerland

Responsible Radiation Protection Expert according to the guidelines of the supervisory authorities and internal regulations in all controlled and supervised areas of the Paul Scherrer Institute.

2021 - 2023

Full-Stack Web Development Bootcamp

Waldshut-Tiengen, Germany

I worked on several full-stack projects with the MERN stack and other frameworks and technologies throughout the CareerFoundry course and graduated after 9 months.

2022 - 2023

Freelance Full-Stack Web Developer

Waldshut-Tiengen, Germany

I'm now a full-stack developer working as a freelancer. My stack includes React, Next.js, TypeScript, Tailwind and MongoDB. I'm open to freelance opportunities.

2023 - today

Contact me

Please contact me directly at lumen@haendler.dev or through this form.