Co-founder with wide range of responsibilities but main focus on frontend engineering:- Concept, UI/UX-design and implementation of a web app visualizing smart meter data and providing energy contract informationAngular, authentication, custom data visualization with d3 and high-quality responsiveness Role: main developer- Concept, UI/UX-design and implementation of an Angular web app admin interface to control and monitor backend-data as well as to configure the aforementioned user-frontend- Design and implementation of the Energy Assistant website with Angular: https://energy-assistant.com - Web performance optimisation- Supporting backend engineers on e2e-tests of a NodeJS-based microservices system- Brand development and logo design

Independent support, consulting, design and implementation of customer projects with the software smartPerform- Design of smartPerform projects/applications- Redesign of interaction and control elements in smartPerform

Full-stack developer on several projects and customers:- adidas: huge, international e-commerce-project driven by agile processesAndroid Native with Kotlin, MVVM, unit tests, SCRUM with Jira, English-only- MyPAX: Showing extensive product information being maintained from a CMS systemFrontend: Flutter (iOS, Android, Smartphone, Tablet), clean architecture with self-maintained bloc-pattern, unit tests, offline capability, UI/UX-design, requirement analysisBackend: Implementation of a mobile gateway middleware to provide secured and cached data from Drupal system to client while keeping loading time as short as possibleNestJS (based on NodeJS), MongoDB, TypeScript- Fresh Index, the real time freshness indicatorFlutter (iOS, Android), unit tests, UI/UX-consulting- Different smaller projects and tasks including POCs, developing a high-performance Android-smartwatch-keyboard-app, supporting colleagues with Flutter-knowledge, helping out on NodeJS-backend development