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• Mobile app development with React Native • Responsible for the app's architecture. • Klaytn, Web3 networks • Implemented algorithm for lottery number picking component • Integrated blockchain APIs for saving and retrieving lottery numbers • Developed token / coin sending functions using caver Klaytn APIs • Executed smart contracts from the native mobile app • Built QR component with auto navigation to the Transaction screen with dynamically detecting coin / token type • Used all 3 types of navigators (Stack, Tab, Drawer) • Onboarding • Dynamically changing UI according to the database type • Patched react native BIP39 library for react native compatibility for mnemonic phrase generation • Patched caver-js library (packages/ caver-ipfs) for react native compatibility • Patched react-native-os(Android)/ react-native-tcp/ react-native-udp(IOS) libraries for native mobile compatibility • Integreted OTA(CI/CD) updates with codePush • Published to Google Play Store • Encountered and successfully resolved issues like: web3 account already exists | by checking for a cached account before adding a new one, allowance | when first sending the token, by approving the token on the desired contract• Mobile app development with React Native • Responsible for the app's architecture. • Klaytn, Web3 networks • Implemented algorithm for lottery number picking component • Integrated blockchain APIs for saving and retrieving lottery numbers • Developed token / coin sending functions using caver Klaytn APIs • Executed smart contracts from the native mobile app • Built QR component with auto navigation to the Transaction screen with dynamically detecting coin / token type • Used all 3 types of navigators (Stack, Tab, Drawer) • Onboarding • Dynamically changing UI according to the database type • Patched react native BIP39 library for react native compatibility for mnemonic phrase generation • Patched caver-js library (packages/ caver-ipfs) for react native compatibility • Patched react-native-os(Android)/ react-native-tcp/ react-native-udp(IOS) libraries for native mobile compatibility • Integreted OTA(CI/CD) updates with codePush • Published to Google Play Store • Encountered and successfully resolved issues like: web3 account already exists | by checking for a cached account before adding a new one, allowance | when first sending the token, by approving the token on the desired contract Skills: Mobile Application Development · web3.js · caver.js · Smart Contracts · React · React Native
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Buiilt CMS with NotionDB and NextJS for articles page (https://entri.io/newsroom). • Developed responsive Pages/Components with right-to-left layout support using Tailwind + NextJs. • Upgraded Stripe Component with Webhook support for the Web Clients. • Assisted CTO with refactoring NestJS/NextJS code with Parse as an ORM. • Implemented translation to Hebrew with Web strings and i18 package for NextJs.Buiilt CMS with NotionDB and NextJS for articles page (https://entri.io/newsroom). • Developed responsive Pages/Components with right-to-left layout support using Tailwind + NextJs. • Upgraded Stripe Component with Webhook support for the Web Clients. • Assisted CTO with refactoring NestJS/NextJS code with Parse as an ORM. • Implemented translation to Hebrew with Web strings and i18 package for NextJs. Skills: Software Development · NestJS · Next.js · JavaScript · React.js · Node.js
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1. NAAPIMHA (www.naapimha.org) APP (https://apps.apple.com/kr/app/naapimha/id1627622072?l=en) • Developed Journal screen with step-by-step functionality. • Created Firebase Cron function that counts user's average mood for a week/month. • Built Onboarding with different components (multiple-choice, autofill, custom answer) with FlatList. • Collaborated with Senior Developers and engineered feature in CMS that triggers activity in Video Chat screen on clients' side (React, firebase, redux-thunk). • Developed WebView component that communicates with CMS for PayPal payments. 2. Wellingbe (wellingbe.com) APP (https://apps.apple.com/kr/app/wellingbe/id1629571949?l=en) • Implemented Mood slider and hashtags system that categorizes default hashtags and custom ones in Journal. • Developed a tutorial screen that pops before the user enters the video chat. • Created custom component in Onboarding for picking the year in react-native-calendars library.1. NAAPIMHA (www.naapimha.org) APP (https://apps.apple.com/kr/app/naapimha/id1627622072?l=en) • Developed Journal screen with step-by-step functionality. • Created Firebase Cron function that counts user's average mood for a week/month. • Built Onboarding with different components (multiple-choice, autofill, custom answer) with FlatList. • Collaborated with Senior Developers and engineered feature in CMS that triggers activity in Video Chat screen on clients' side (React, firebase, redux-thunk). • Developed WebView component that communicates with CMS for PayPal payments. 2. Wellingbe (wellingbe.com) APP (https://apps.apple.com/kr/app/wellingbe/id1629571949?l=en) • Implemented Mood slider and hashtags system that categorizes default hashtags and custom ones in Journal. • Developed a tutorial screen that pops before the user enters the video chat. • Created custom component in Onboarding for picking the year in react-native-calendars library. Skills: Mobile Application Development · Software Development · TypeScript · Redux Thunk · Firebase · React Native
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• Developed both homepage and application using NextJS, Tailwind, Redux, React Native, useQuery, NotionDB, AWS. • Integrated scalable cloud services like Amazon S3, EC2 constantly updating web application on an EC2 instance using Linux Virtual Machine. • Created a micro service to use as a CMS for the homepage and the app [both IOS and Android] (update items/description) with ExpressJS and Notion API as a database. • Collaborated with CTO on developing backend that synchronizes NotionDB with Firebase Firestore. • Developed CRUD functions that update the NotionDB pages on Firestore changes using Firebase's real-time updates API (onSnapshot, onWrite, onCreate, onDelete). • Optimized the app's structure using useQuery as a state manager. • Streamlined the app updates with CodePush CI/CD tool.• Developed both homepage and application using NextJS, Tailwind, Redux, React Native, useQuery, NotionDB, AWS. • Integrated scalable cloud services like Amazon S3, EC2 constantly updating web application on an EC2 instance using Linux Virtual Machine. • Created a micro service to use as a CMS for the homepage and the app [both IOS and Android] (update items/description) with ExpressJS and Notion API as a database. • Collaborated with CTO on developing backend that synchronizes NotionDB with Firebase Firestore. • Developed CRUD functions that update the NotionDB pages on Firestore changes using Firebase's real-time updates API (onSnapshot, onWrite, onCreate, onDelete). • Optimized the app's structure using useQuery as a state manager. • Streamlined the app updates with CodePush CI/CD tool. developed components with Next.js, TailwindCSS, NotionAPI database, updating the homepage on AWS EC2. built react native app with Firebase integration(push notifications, authentication), Kakao/Naver authentication, developing components using Storybook, implemented Strapi with AWS RDS (mySQL) and S3 bucket for infinite scroll data / custom swiper testing, later changed to Firestore.https://e-sool.com developed components with Next.js, TailwindCSS, NotionAPI database, updating the homepage on AWS EC2. built react native app with Firebase integration(push notifications, authentication), Kakao/Naver authentication, developing components using Storybook, implemented Strapi with AWS RDS (mySQL) and S3 bucket for infinite scroll data / custom swiper testing, later changed to Firestore. Skills: Mobile Application Development · Software Development · useQuery · NotionAPI · Firebase · JavaScript · React.js · Node.js · React Native · Next.js · Amazon Web Services
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(ILKKUN) • Entirely developed Front End, use local map APIs(Naver, juso) to filter jobs based on user's location using area code from juso API. • Developed notification function that counts and shows how many "jobs" were uploaded (for workers) and how many workers uploaded their resumes (for employers), ring sound every time "new job/resume" is uploaded. • Filtered lists according to their upload date using indexes. • Implemented filter by job type to only show jobs that the user chose. (Annuity Pay) • Developed UI components, implemented function that converts HTML from the "back-end" to text to display in the app's notification tab. • Created a function that only displays the stores in Google Map that are located in the user's area • Implemented infinite scroll to load products by chunks. • Developed a component that counts total amount user is required to pay using debt percent from the backend. (Bunyang) • Implemented WebView component that have excel, pdf, png file download function and sends OS type, user location and user token to the frontend through the bridge development. • Implemented Fireabase push notifications for ios and android. • Uploaded to TestFlight, App Store and Google Play Market.(ILKKUN) • Entirely developed Front End, use local map APIs(Naver, juso) to filter jobs based on user's location using area code from juso API. • Developed notification function that counts and shows how many "jobs" were uploaded (for workers) and how many workers uploaded their resumes (for employers), ring sound every time "new job/resume" is uploaded. • Filtered lists according to their upload date using indexes. • Implemented filter by job type to only show jobs that the user chose. (Annuity Pay) • Developed UI components, implemented function that converts HTML from the "back-end" to text to display in the app's notification tab. • Created a function that only displays the stores in Google Map that are located in the user's area • Implemented infinite scroll to load products by chunks. • Developed a component that counts total amount user is required to pay using debt percent from the backend. (Bunyang) • Implemented WebView component that have excel, pdf, png file download function and sends OS type, user location and user token to the frontend through the bridge development. • Implemented Fireabase push notifications for ios and android. • Uploaded to TestFlight, App Store and Google Play Market.
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