Patrick Klitzke
Mentor
(1 reviews)
US$20.00
For every 15 mins
4
Sessions/Jobs
ABOUT ME
Freelancer for React and Mobile (Flutter and React Native)
Freelancer for React and Mobile (Flutter and React Native)
Hi I am Patrick and I am a fulltime FullStack Engineer. I love developing new Apps in React (Nextjs) and also Backend in various languages like Nodejs and Go. I have also quite some experience with Contentful by building both custom apps inside Contentful as well as using it to display data in the app. I am always interested in new techlogies. Right now I am learning Rust and Svelte in my free time. In the past I have worked on many Web3 / Blockchain projects.
German, Japanese, English
Tokyo (+09:00)
Joined June 2017
EXPERTISE
6 years experience
I have build many apps using node.js (express) and Apollo (graphql) with React apps. One of the most recent apps i build was a Newspaper ...
I have build many apps using node.js (express) and Apollo (graphql) with React apps. One of the most recent apps i build was a Newspaper Ad management site for the Japanese company Dentsu.
6 years experience
I have been building React Apps since they published it.
I have been building React Apps since they published it.
6 years experience
I have build many web apps for different clients with both rest api and Graphql. The most recent project was a Managment system for newsp...
I have build many web apps for different clients with both rest api and Graphql. The most recent project was a Managment system for newspaper ad spaces.
10 years experience
I have been building website since i was in high school. I enjoy creating pixel perfect design.
I have been building website since i was in high school. I enjoy creating pixel perfect design.
4 years experience
I have build many different apps in graphql. One of the most recent system was the backend for a financial startup.
I have build many different apps in graphql. One of the most recent system was the backend for a financial startup.
6 years experience
I have been developing apps in React for about 5 years. This includes social networks, learning platforms as well as apps in blockchain.
I have been developing apps in React for about 5 years. This includes social networks, learning platforms as well as apps in blockchain.
8 years experience
I have used Javascript since i was in high school and have build countless numbers of website with css, JavaScript and frameworks like Re...
I have used Javascript since i was in high school and have build countless numbers of website with css, JavaScript and frameworks like React and Angular.
REVIEWS FROM CLIENTS
(1 reviews)
preet
September 2017
genius tutor!
SOCIAL PRESENCE
Horizon-Chat-MobX-OnsenUI
A simple chat app with Horizon MobX and OnsenUI
CSS
34
19
MobX-Stopwatch
A simple todo app with mobx and OnsenUI components for react
JavaScript
23
11
EMPLOYMENTS
Professional React and React Native Freelancer
Codementor / Arc
2015-09-01-Present
I have been professionally freelancing since 2015. During that time I build a lot of different apps varying from simple blogs to comp...
I have been professionally freelancing since 2015. During that time I build a lot of different apps varying from simple blogs to complicated webapp and mobile apps. I always enjoy learning new things.
My usual Stack would be:
* Backend: Nodejs / Go
* Mobile: React Native or Flutter
* Frontend: React with Nextjs / Gatsby with Typescript
* Backend: PostgresSQL, MongoDB, Firebase
* Blockchain: Ethersjs
* CMS: Contentful
* Deployment: Vercel / AWS lambda / AWS EC2 / Kubernets / GCP / Firebase
HTML
React
JavaScript
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HTML
React
JavaScript
React Native
Gatsby
Web3
Next.js
Prisma
Contentful CMS
Express.js
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CTO
Kawazu Sakura Software K.K
2021-10-01-2023-07-01
The following is an extract of projects I have worked on:
Tacen (2 years https://www.tacen....
The following is an extract of projects I have worked on:
Tacen (2 years https://www.tacen.com/)
- Managing a frontend Team of 4 Developers and Backend Team of 3 Developers
- Communicate with Chief of Product, Engineering Leaders and other stakeholders to adjust goals and timelines
- Developing and architecturing with 20 microservices using Go, Nim, and Node Js and Kafka for an exchange service
- Designing and implementing 5 new microservices in Go
- Creating configure websites with Contentful and Nextjs and deploy it with Vercel
- Integrate blockchain technology using etherjs and web3js
- Increased team performance by 30% by improving on specs, documentation and conducting evaluations
- Developing and architecting UI libraries, components and websites using NextJs (React) and Storybook
- Integrating an designing GraphQL endpoints with Nextjs
- Improve development process by creating internal tooling to speed up development setup by 50%
- Created initial product in 3 months and alpha version in a year from zero
- Architected 4 different Webapps in Nextjs using template system
HTML/CSS
TypeScript
Google Cloud Platform
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HTML/CSS
TypeScript
Google Cloud Platform
Redux
GraphQL
Next.js
Go (Golang)
Contentful CMS
Express.js
AWS (Amazon Web Services)
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CTO
Kawazu Sakura G.K
2018-10-01-2021-10-01
Asharq (6 month https://asharq.com/)
- Build a frontend Nextjs webapp for a new news...
Asharq (6 month https://asharq.com/)
- Build a frontend Nextjs webapp for a new newspaper website for the client in 3 months
- Build apps inside Contentful to improve the experience of writers and support for the writers
- Added a new dashboard inside Contentful to better manage the publishing flow for news articles
- Displayed data from Contentful inside the news paper app
- Maintained the webapp and integrated new features
- Increased performance and rending time of the website by switching to different state management libraries
- Build backend with Nodejs and lambda and PostgreSQL
Metal Pay (1 year): [https://www.metalpay.com/]
- Used Contentful to manage Marketing Content for various websited
- Integrating blockchain technology using web3.js
- Estimated and created a development plan for converting the existing mobile app to webapp in Nextjs
- Worked in a team of 3 developers to build different MVP products, including an crypto exchange
- Added support for multiple languages using Contenful (English, Korean, Chinese)
ProtonChain (3 months): [https://www.proton.org/]
- Creating a blog website and various integrations using Gatsby and Nextjs
- Integrating blockchain technology using web3.js
Mapify (1 year) [https://mapify.travel/]
- Build a travel app in react native app with 10,000s of daily users users based on the design of the iOS App
- Maintained the React Native app and implemented new features
- Mentored an intern and increased his productivity by 30%
JavaScript
Gatsby
Next.js
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JavaScript
Gatsby
Next.js
Contentful CMS
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PROJECTS
MapifyView Project
Mapify
2019
Mapify is a social network for travel lovers, that helps users plan their next vacation by giving a recommendation of places with picture...
Mapify is a social network for travel lovers, that helps users plan their next vacation by giving a recommendation of places with pictures taken from other users as well as tips for accommodation and what to bring for your travel.
Android
React
JavaScript
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Android
React
JavaScript
React Native
iOS
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Crumbs React Native AppView Project
Crumbs
2018
rumbs is a financial app that invests your spare money into cryptocurrencies. For example, users are able to automatically invest their c...
rumbs is a financial app that invests your spare money into cryptocurrencies. For example, users are able to automatically invest their credit card purchases round ups into crypto. Furthermore, one can also buy and sell crypto automatically.
JavaScript
React Native
MobX
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JavaScript
React Native
MobX
iOS
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