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Senior react.js Developer Wanted for Health App

$25-50 USD / hour

Closed
Posted over 3 years ago

$25-50 USD / hour

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.
Project ID: 28358855

About the project

40 proposals
Remote project
Active 3 yrs ago

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40 freelancers are bidding on average $34 USD/hour for this job
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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: https://www.freelancer.com/u/tangramua Here detailed information about our company, our portfolio, and the client's recent reviews.   Also, we wanted to personally discuss questions about your project, which helps us to give you the right estimation.   Best regards, Tangram Canada Inc.  
$25 USD in 5 days
5.0 (21 reviews)
7.0
7.0
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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 - Wordpress, Shopify, Magento, Opencart - Database Management MySQL, MongoDB - Mobile App Android, Unity - Software development(Java, C#, C++) - Good communication, good listener Let's meet in the chat room and have a detail discussion.
$38 USD in 40 days
5.0 (17 reviews)
5.6
5.6
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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 many complex projects for our customers that cover the areas of health care, IoT, ML (computer vision and natural language processing), AR/VR, CAD/CAE, video production equipment, simulation in neuroscience, financial markets, HPC and more. We develop desktop apps, back end, front end (including design), mobile (including cross-platform) and firmware. QA and test coverage are provided as well as post-release support. Our developers are trained on internal projects that are presented on our website. They have diversified skill sets that cover the most popular frameworks, tools and languages.
$25 USD in 40 days
5.0 (1 review)
5.2
5.2
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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 Laravel, MERN, AWS, PayPal, webpay, and Stripe. I am ready for you anytime. If I am hired, I will put my full time to your project. Please contact me to discuss further details.
$35 USD in 40 days
4.8 (14 reviews)
5.2
5.2
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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 on expertise in other PHP stacks (Yii2, Laravel, Codeigniter) as well. Let's have a chat to discuss this opportunity. Looking forward to hearing back from you. Regards, HB
$30 USD in 40 days
5.0 (10 reviews)
4.5
4.5
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Dear Employer. My name is Mauro from Italy. I have checked your project details carefully and it seems you are looking for react js expert. I have rich experience in that so I am sending you my proposal. Let me have a chance to do your project. I will do my best for your project and will provide you perfect results. Please send me message. I am waiting for your reply now. Kind regards. Mauro
$38 USD in 40 days
5.0 (4 reviews)
3.9
3.9
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Hi, After reading the project requirement I could understand that you need Frontend React Developer. Skills : React.Js, Asp.net (Web Forms/MVC/Core),c#,web services (SOAP and REST) ,WCF,Web API,Entity Framework,Linq to Sql,XML and JSON.Q,SQL server 2012/2014,SQL Lite.,IIS, OOAD,UML,HTML5,Java script (Angular js ,jquery, knockoutjs), Bootstrap,Windows Azure/ Amazon AWS. We can discuss more about the project in the chat. Thanks.
$35 USD in 40 days
3.8 (2 reviews)
5.1
5.1
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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. Worked with funded startups from India, United States and Singapore release regular product updates. Let's talk?
$50 USD in 40 days
4.7 (6 reviews)
4.4
4.4
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Hi there. I went thruogh your description and understood requirement. I am senior developer with rich experience with reactjs. I am familiar with various algorithms for your app. If you pick me , I can refactor your app. I will be waiting for your hello. regards.
$38 USD in 40 days
4.9 (2 reviews)
3.0
3.0
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Hello, I have gone through the job description you are looking for react developer for the development of health web application. I'd like to let you know that we are a team of experts having up to 6 years of experience in react-native, native, flutter app development including website, back-end, Third-party API(Web services) development. If you find us suitable ping on the chat box for further discussion. - Frontend (React.js, AngularJS, Vue.js, Bootstrap, Javascript, HTML5, CSS3, Jquery) - Backend (Python/Django, Wordpress, Node.js, Magento, CodeIgniter, Laravel, MySQL, MongoDB, PostgreSQL) I will assign a dedicated senior react developer for your project who will be available 40 hrs/week at 9am GMT Mon-Fri. We have worked on the #taxi booking app, #food delivery app, #multi-vendor grocery delivery app, #carparking app, and many more. I have strong expertise to accomplish this project in the decided time frame. Let's come to the PMB so we can discuss it further and give you a proper time and estimation. Warm Regards Sherry
$38 USD in 40 days
5.0 (1 review)
2.2
2.2
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Hello, how are you? Thank you for your opportunity. As a senior React developer, I think your project is very suitable for me. I have rich experience and high skills of 5+ years in React, Redux, Saga, Hooks. And have completed many similar with projects perfectly. if you contact me, I will share everything previous projects. Please feel free contact me. I will do my best for your project and you will see my great work. Best regards
$38 USD in 40 days
0.0 (0 reviews)
0.0
0.0
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Hi There, I am taking this opportunity to apply for the project you advertised. I believe that the qualities you seek from a candidate perfectly match my qualifications, skills, and abilities. First impressions mean everything in business and a good website design is the key to exploiting this. In my opinion, a great site is not measured by looks alone, but also by functionality and usability. I am an experienced engineer (9 years) who can find creative solutions to technical challenges, whilst at the same time designing sleek and visually appealing websites. I have extensive knowledge of recognized technical standards and am familiar with modern build practices. Aside from my technical competencies, on a personal level, I also have a talent for building close relationships with other specialists. I possess the communication skills needed to get the best out of others and to get everyone pushing in the same direction. Since 2019 I'm leading a successful team that helps individuals, companies, and organizations to maintain an online presence and keep them at the top of their field. Our clients span many different industry sectors and range from start-ups through to international corporations. Right now I am keen to work for a company like yours where I will have an opportunity to work with the brightest and the best in the field of web design. Finally, I would like to thank you for taking the time to consider my application. Yours sincerely.
$40 USD in 40 days
0.0 (0 reviews)
0.0
0.0

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Flag of UNITED STATES
Los Angeles, United States
0.0
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Member since Nov 30, 2020

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