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Senior react.js Developer Wanted for Health App

I am looking for an senior front-end developer to help our team of 5 developers develop our health application.

I want an progressive web app which aims to help people live healthier lives. Be it by eating healthier foods or working out more regularly.

Your main tasks will be:

- Refactoring existing code to improve speed and efficiency

- Implementation of new features or redesigns of pages

Tech stack is:

- react.js

- Webpack/ NPM / Gulp

- AWS (Codecommit, EC2, Redis, etc...)

- Yii2 backend

- MongoDB

- Confluence for documentation

- Telegram for dev team communication

- Trello for task management

Base requirements:

- 5+ years knowledge with Javascript and other frontend technologies

- 4+ years of production experience with react.js

- Deep knowledge of CSS and SASS

- Has a deep interest in the latest technologies used for web development, especially in the frontend side of it.

To sum it up: Looking for Senior level react.js developer who is able to refactor code and suggest better solutions than what having now.

Looking for someone who is able to work 40hrs a week at European timezone. Starting at 9am GMT Mon-Fri

Provide me your past link for React js web applications or recent work in your proposal.

Навыки: Node.js, NoSQL Couch & Mongo, Express JS, React.js, AngularJS

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О работодателе:
( 0 отзыв(-а, -ов) ) Los Angeles, United States

ID проекта: #28358855

48 фрилансеров(-а) готовы выполнить эту работу в среднем за $34/час

(62 отзывов(-а))
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(27 отзывов(-а))
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(232 отзывов(-а))
7.1
(16 отзывов(-а))
7.1
FutureTechno1

Hi there, I have senior React.js front-end developer and expertise skills are Angular js , React.js, Redux, TypeScript, Node js , API, MVC , MYSQL, MongoDB , HTML , CSS , Bootstrap, GitHub, Jira, etc . For 6+ year Больше

$25 USD / час
(6 отзывов(-а))
6.1
hirakchhatbar

Hello, I went through your project brief and I can handle it efficiently. I have 4+ years of experience with Reactjs including Redux Saga, Nextjs, React bootstrap, Rebass etc. I can work on your requirement efficient Больше

$32 USD / час
(6 отзывов(-а))
6.0
(34 отзывов(-а))
6.0
tangramua

Hello boersen1980,   We have 20 years of strong experience in NoSQL Couch & Mongo, Node.js, Express JS, AngularJS, React.js, as a result, we can successfully complete this project.   Please, review our profile here: ht Больше

$25 USD / час
(8 отзывов(-а))
6.2
abhilashtv

Hi ✅6+ years of full-time experience in Node.js & React.js ✅Upwork Top 10 Certification for Node.js ✅Guaranteed Results Policy: Pay only if you are happy with the results ✅Excellent communication and flexible availabil Больше

$38 USD / час
(18 отзывов(-а))
6.3
(5 отзывов(-а))
6.3
unboltsoft

We are a Ukrainian software development company that employs several passionate engineers. Our main focus is scientific software, but we also do web and mobile development. In the last few years we have completed man Больше

$25 USD / час
(1 отзыв)
5.2
daffodilsoftware

Hi, I have gone through the job details and understand that you are looking for an experienced React.JS developer. As per the required skills set mentioned in the Job Description, we feel ourself perfect fit for this Больше

$38 USD / час
(3 отзывов(-а))
7.0
solarsoftwares

Hello , Warm greetings from Osiz technologies , we have 10+ years of experience in website development , mobile application and block chain technology. Requirement : You are looking for a senior front-end developer Больше

$50 USD / час
(7 отзывов(-а))
5.4
jeyhunilysov

Hi, there! I saw your requirements and I am very interested in your project. Your project is a piece of cake for me. I am a Laravel, Vue, MEAN, MERN expert. I have rich experience in website design and building by Lara Больше

$35 USD / час
(14 отзывов(-а))
5.2
nadja018

I have more than 7 years of experience in react.js and react native. My core skills are React: 10/8, Redux(both thunk & saga): 10/8, Styled components: 10/7, API integration: 10/9, Graphql: 10/7, node: 10/8, React Nati Больше

$40 USD / час
(17 отзывов(-а))
5.0
topsinfosolution

Hello, I am backed by a strong team of skillful and proficient front-end REACT developers with hands-on experience developing apps for the Music Industry, Crowdsourcing Apps, Inventory Management tools, PLM (process l Больше

$25 USD / час
(2 отзывов(-а))
4.5
vut4l1

Hi, I am an expereienced web developer. I can deliver your project in shortest time and successfully. My skills are as following - Frontend AngularJS, Angular, ReactJS, VueJS, ExtJs - Backend PHP, NodeJS, Python - Больше

$38 USD / час
(9 отзывов(-а))
4.3
DataOnMatrix

Hi there, I have already created a 'Health App' for 1 of my client. Please drop me a message so that I can show you the demo that app. I'm a veteran Reactjs developer having more than 7+ years experience with hands Больше

$30 USD / час
(10 отзывов(-а))
4.5
elchindev

Hi, I have rich experiences in the skills you want except for only Yii2, But I can master it soon, if you need it. I am attaching some links of my past works. [login to view URL] (React.js + Node.js + MySQL, Three. Больше

$30 USD / час
(13 отзывов(-а))
4.6
BrokeProgrammer

Hey, Pretty good at developing web apps in Angular 2+. Experienced in domains like SaaS, Identity+Privacy+Security, AdTech+IoT, Construction, Real-estate, Non-profit, Social Platform, Recruitment, Healthcare, etc. Wo Больше

$50 USD / час
(6 отзывов(-а))
4.4