About Johannes
Software-Entwickler mit starkem Produktfokus durch wiederholte Gründungserfahrungen.
Neben tiefem Wissen im Bereich Javascript & React verfüge ich aus meinen Startup Erfahrungen über Wissen in den Bereichen SEO, Product Development, Business, und Marketing (Content, Social Media, Email).
Dadurch bin ich in der Lage sowohl sauberen und skalierbaren Code zu schreiben, als auch andere Bereiche im Blick zu behalten und effektiv mit Stakeholdern zu kommunizieren.
Ausgewählte Resourcen:
React Architecture - Eine Reihe von Videos und Blog Posts zum Thema Clean Architecture und React Apps
German
Native or bilingual
English
Fluent
Turkish
Conversational
Can work on-site
Berlin (up to 50km), Berlin (up to km)
Experience
- DKB CodefactoryFrontend DeveloperJanuary 2023 - September 2024 (1 year and 8 months)• Banking web application with millions of monthly users• Responsible for the architecture and implementation of multiple product checkouts like the credit card ordering process• Part of a end-to-end testing task force aiming at improving test coverage and the quality and performance of the test suites• Creation of the concept and implementation of a cross-team tracking library• Worked in multiple cross-functional teams with up to 20 developers• Technologies: React, TypeScript, Redux Toolkit, styled-components, React Testing Library, Playwright, Node.js, Gitlab
- Osram Innovation HubFrontend JavaScript DeveloperMarch 2019 - October 2019 (7 months)• Frontend for IoT project lightelligence.io• Technologies: React• Responsibilities: Developing the frontend UI as a representation for the lightelligence API
- Profy.devFounderJanuary 2020 - September 2024 (4 years and 8 months)• Created the "React Job Simulator" program for aspiring Junior React developers with to this date ~100 students• Built the course platform with Next.js, Tailwind, GraphQL• Created a professional codebase for the students to work on• Mentoring and code reviews for students• Content marketing with popular blog posts shared in renominated newsletters• SEO optimisations leading to currently ~10k monthly organic visits• Technologies: React, Next.js, styled-components, GraphQL, Cypress, Nest.js, Railway, DGraph cloud
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Education
- Diplom PhysikUniversität Potsdam2014