Resume
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Jonas Herrmannsdörfer
Key Facts
- 7+ years of experience
- Speaker at international conferences
- Author for 2 Developer Magazines
- React.js Trainer
- Bachelor's thesis: Scaffolding React.js Applications based on the OpenAPI specification
Skills
JavaScript/TypeScript
React.js, Next.js, Node.js
React Tooling
React Router, Apollo Client, TanStack Query
CSS Frameworks
TailwindCSS, shadcn/ui
Testing
Playwright, Vitest, React Testing Library
Miscellaneous
Docker, git, pm2, Gitlab, Github, Nvim
Project Management
Agile & Lean Methodology, Scrum, Kanban
German
Native language
English
Fluent (year abroad in Ireland)
Projects
1 year 5 months
09.2023 - 02.2025
Göttingen
Senior Software Engineer
PACETEQ GmbH
- Real Time and Replay application for electric boat racing
- Planning & development of a Next.js architecture from scratch
- Completion of the MVP within 5 weeks
Technologies: Next.js, Fastify, Go, React.js, TypeScript, TailwindCSS, GraphQL, Leaflet, Playwright
1 year 5 months
12.2022 - 05.2024
Göttingen
Senior Software Engineer
PACETEQ GmbH
- Data Management Platform for motorsport
- Performance optimization: average load times reduced by 50%
- Redesign of the frontend architecture
Technologies: Next.js, React.js, Express, TypeScript, TailwindCSS, GraphQL, Playwright

7 years 9 months
05.2017 - 02.2025
Würzburg
Senior Software Engineer
Jonas Herrmannsdörfer
- Development of web applications with a focus on React.js
- Performance optimization up to 50%
- Planning/redesign of frontend architectures
Technologies: React.js, TypeScript, Next.js, GatsbyJS, Node.js, TailwindCSS, GraphQL, Playwright
1 year 2 months
09.2021 - 11.2022
Erlangen
Senior Software Engineer
Fraunhofer Institute for Integrated Circuits IIS
- Subproject V2X within the program "5G-Bavaria Test Center"
- Conversion of the initial Flask implementation to Next.js within 4 weeks
- Achieved a feature-complete product within a year
Technologies: Next.js, React.js, TypeScript, TailwindCSS, Leaflet, Cypress

10 months
11.2020 - 09.2021
Würzburg
Founder & CTO
Die Psychotherapie App UG (limited liability)
- Companion tool for creating and completing psychotherapy homework
- Go to market achieved in under 3 months
- Planning and implementation of a healthtech-compliant frontend architecture
Technologies: React.js, TypeScript, TailwindCSS, Firebase, Cypress

2 months
05.2021 - 07.2021
Rottendorf
Software Engineer
Faaren GmbH
- Car subscription platform
- Conversion of the previous Laravel checkout to Nuxt.js
- TailwindCSS and Nuxt.js training
Technologies: Nuxt.js, Vue.js, TypeScript, TailwindCSS
5 months
10.2020 - 03.2021
Hamburg
Software Engineer
elbstack GmbH
- Development of a smart home app for iOS and Android
- Simplification of development processes through CLI tools
Technologies: React Native, TypeScript
Let's work together
I'd love to discuss how we can work together to bring your project to life. Let's talk about my approach, availability, and rates.
Contact Me to Get Started