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$50 USD / hour
Flag of CHINA
dandong, china
$50 USD / hour
It's currently 6:05 PM here
Joined May 19, 2022
1 Recommendation

Yan H.

@EmilyHong519

monthly-level-three.svg 4.7 (4 reviews)
3.2
3.2
71%
71%
$50 USD / hour
Flag of CHINA
dandong, china
$50 USD / hour
100%
Jobs Completed
100%
On Budget
100%
On Time
25%
Repeat Hire Rate

Full Stack Developer

Senior software engineer with over 10 years of experience in web and mobile development. I'm a Full Stack developer with a passion for managing the entire lifecycle of products, from ideation to launch. My previous experience combines my strong team management skills and knowledge of JavaScript and Node.JS to create user-centered web and mobile apps. I am good at these specific fields below: - Language ✓ JavaScript, ECMAScript (ES6/ES7/ES8), TypeScript ✓ HTML5, CSS3, LESS, SASS, SCSS, Stylus ✓ PHP, Python, C++, Java - Node.js and Express backend evelopment ✓ Rest and GraphQL APIs ✓ OAuth ✓ 3rd party API integration - React Libraries and Modules: ✓ Core - react-dom, react-router-dom, create-react-app ✓ State Management – Flux, Reflux, Redux, MobX ✓ Redux / MobX - react-redux, redux-form, redux-saga, redux-thunk, redux-observable, mobx-react ✓ UI - styled-components, react-bootstrap, material-UI, glamorous ✓ Chart - react-d3, recharts, react-highcharts ✓ Google Map - google-maps-react, geocoder ✓ Unit Testing – Jest, Enzyme, Mocha ✓ In addition, I am good at other JavaScript libraries such as Highcharts.js, D3.js, Google APIs and Payment Integration. - React Native ✓ Platform – Android, iOS ✓ Libraries - router-flux, modalbox, vector-icons, simple-store, image-picker, photo-view, share, swiper, progress, loading-spinner-overlay, sound, hyperlink, FCM ✓ Special – Relay, React Apollo, GraphQL - Other ✓ Project Management - Agile/Scrum ✓ Source Control - GitHub, GitLab, Bitbucket ✓ Coding Principle – SOLID, DRY, KISS ✓ Task Management - Jira, Trello, Pivotal Tracker ✓ Design – InvisionApp, Zeplin, Marvel, SketchApp, Photoshop ✓ Artificial intelligence - Computer vision, Deep learning, Image processing, OpenCV I have built many web applications using Node.js, React.js and hybrid mobile applications using React Native. I am a result-driven developer and I always try to exceed the expectations. Thank you!
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Portfolio

10660535
- Was involved in the development of Vacation Rental Search Engine. - Built the website based on React.js, MobX, Node.js, GraphQL, and PostgreSQL. - Mainly handled the front-end part and built the pages based on Bootstrap framework. - Extensively created the styles for each component using styled-component. - Also created the hybrid mobile apps for both Android and iOS platform using React Native.
ReactRedux - E-commerce App
10660533
- I was the lead Front-end developer in this project. There were around 5 developers - 2 Back-end developers, a designer, and the project manager. - I developed all the front-end pages from scratch. - I was provided with the design files as InvisionApp and Sketch file from the designer. - The most challenging part of this project was to customize the Bootstrap framework. - It took 6 months to finish the front-end pages. Technologies: React.js, Admin Dashboard, Bootstrap v4, SCSS
React.js Admin Dashboard Development
10660529
I was involved in the development of core engine for these websites. I mainly worked on the front-end part of this project and developed npm modules specific for this company. I used React.js / Redux to build components and used these components in the various parts of the Wordpress site. The key components are HPS(Home Page Search), FTS(Free Text Search), SRP(Search Result Page), and VDP(Vehicle Detail Page). For VDP, I integrated AMP(Accelerated Mobile Page) to create mobile-friendly contents specifically for mobile devices. All these components are integrated into Wordpress using custom plugins developed by the team.
React.js - Car Dealership App
10660520
The client provided ready psd layout templates and needed them coded in HTML. The design presupposed a fixed sidebar for desktop. I used Less as a preprocessor, Bootstrap 4 (client's specific request), JQuery, JS and animation libraries for a light animation.
HTML Pages for a Real Estate Project
The client provided ready psd layout templates and needed them coded in HTML. The design presupposed a fixed sidebar for desktop. I used Less as a preprocessor, Bootstrap 4 (client's specific request), JQuery, JS and animation libraries for a light animation.
HTML Pages for a Real Estate Project
The client provided ready psd layout templates and needed them coded in HTML. The design presupposed a fixed sidebar for desktop. I used Less as a preprocessor, Bootstrap 4 (client's specific request), JQuery, JS and animation libraries for a light animation.
HTML Pages for a Real Estate Project
The client provided ready psd layout templates and needed them coded in HTML. The design presupposed a fixed sidebar for desktop. I used Less as a preprocessor, Bootstrap 4 (client's specific request), JQuery, JS and animation libraries for a light animation.
HTML Pages for a Real Estate Project
10660492
ClickToEat is a food delivery web application created to help restaurants widen their audience and increase the turnover of their dishes. The website is designed to be easily compatible with smartphones and tablets as well. The users select items from the menu, add them to the cart, pay, and wait for them to be delivered. The website has an admin panel where managers of each restaurant can view and edit the information about: products; menus; prices; customers; orders. The users can choose any dish from the menu of any restaurant in the system and purchase it by selecting: the product itself; the product’s quantity; size and other features; delivery or pickup address; time of delivery or pickup; payment options.
ClickToEat Food Delivery App
ClickToEat is a food delivery web application created to help restaurants widen their audience and increase the turnover of their dishes. The website is designed to be easily compatible with smartphones and tablets as well. The users select items from the menu, add them to the cart, pay, and wait for them to be delivered. The website has an admin panel where managers of each restaurant can view and edit the information about: products; menus; prices; customers; orders. The users can choose any dish from the menu of any restaurant in the system and purchase it by selecting: the product itself; the product’s quantity; size and other features; delivery or pickup address; time of delivery or pickup; payment options.
ClickToEat Food Delivery App
ClickToEat is a food delivery web application created to help restaurants widen their audience and increase the turnover of their dishes. The website is designed to be easily compatible with smartphones and tablets as well. The users select items from the menu, add them to the cart, pay, and wait for them to be delivered. The website has an admin panel where managers of each restaurant can view and edit the information about: products; menus; prices; customers; orders. The users can choose any dish from the menu of any restaurant in the system and purchase it by selecting: the product itself; the product’s quantity; size and other features; delivery or pickup address; time of delivery or pickup; payment options.
ClickToEat Food Delivery App
10660389
The designs had been converted to WordPress website using best practices. https://www.jamesandrew.co.uk/
Wordpress
The designs had been converted to WordPress website using best practices. https://www.jamesandrew.co.uk/
Wordpress
The designs had been converted to WordPress website using best practices. https://www.jamesandrew.co.uk/
Wordpress
10660535
- Was involved in the development of Vacation Rental Search Engine. - Built the website based on React.js, MobX, Node.js, GraphQL, and PostgreSQL. - Mainly handled the front-end part and built the pages based on Bootstrap framework. - Extensively created the styles for each component using styled-component. - Also created the hybrid mobile apps for both Android and iOS platform using React Native.
ReactRedux - E-commerce App
10660533
- I was the lead Front-end developer in this project. There were around 5 developers - 2 Back-end developers, a designer, and the project manager. - I developed all the front-end pages from scratch. - I was provided with the design files as InvisionApp and Sketch file from the designer. - The most challenging part of this project was to customize the Bootstrap framework. - It took 6 months to finish the front-end pages. Technologies: React.js, Admin Dashboard, Bootstrap v4, SCSS
React.js Admin Dashboard Development
10660529
I was involved in the development of core engine for these websites. I mainly worked on the front-end part of this project and developed npm modules specific for this company. I used React.js / Redux to build components and used these components in the various parts of the Wordpress site. The key components are HPS(Home Page Search), FTS(Free Text Search), SRP(Search Result Page), and VDP(Vehicle Detail Page). For VDP, I integrated AMP(Accelerated Mobile Page) to create mobile-friendly contents specifically for mobile devices. All these components are integrated into Wordpress using custom plugins developed by the team.
React.js - Car Dealership App
10660520
The client provided ready psd layout templates and needed them coded in HTML. The design presupposed a fixed sidebar for desktop. I used Less as a preprocessor, Bootstrap 4 (client's specific request), JQuery, JS and animation libraries for a light animation.
HTML Pages for a Real Estate Project
The client provided ready psd layout templates and needed them coded in HTML. The design presupposed a fixed sidebar for desktop. I used Less as a preprocessor, Bootstrap 4 (client's specific request), JQuery, JS and animation libraries for a light animation.
HTML Pages for a Real Estate Project
The client provided ready psd layout templates and needed them coded in HTML. The design presupposed a fixed sidebar for desktop. I used Less as a preprocessor, Bootstrap 4 (client's specific request), JQuery, JS and animation libraries for a light animation.
HTML Pages for a Real Estate Project
The client provided ready psd layout templates and needed them coded in HTML. The design presupposed a fixed sidebar for desktop. I used Less as a preprocessor, Bootstrap 4 (client's specific request), JQuery, JS and animation libraries for a light animation.
HTML Pages for a Real Estate Project
10660492
ClickToEat is a food delivery web application created to help restaurants widen their audience and increase the turnover of their dishes. The website is designed to be easily compatible with smartphones and tablets as well. The users select items from the menu, add them to the cart, pay, and wait for them to be delivered. The website has an admin panel where managers of each restaurant can view and edit the information about: products; menus; prices; customers; orders. The users can choose any dish from the menu of any restaurant in the system and purchase it by selecting: the product itself; the product’s quantity; size and other features; delivery or pickup address; time of delivery or pickup; payment options.
ClickToEat Food Delivery App
ClickToEat is a food delivery web application created to help restaurants widen their audience and increase the turnover of their dishes. The website is designed to be easily compatible with smartphones and tablets as well. The users select items from the menu, add them to the cart, pay, and wait for them to be delivered. The website has an admin panel where managers of each restaurant can view and edit the information about: products; menus; prices; customers; orders. The users can choose any dish from the menu of any restaurant in the system and purchase it by selecting: the product itself; the product’s quantity; size and other features; delivery or pickup address; time of delivery or pickup; payment options.
ClickToEat Food Delivery App
ClickToEat is a food delivery web application created to help restaurants widen their audience and increase the turnover of their dishes. The website is designed to be easily compatible with smartphones and tablets as well. The users select items from the menu, add them to the cart, pay, and wait for them to be delivered. The website has an admin panel where managers of each restaurant can view and edit the information about: products; menus; prices; customers; orders. The users can choose any dish from the menu of any restaurant in the system and purchase it by selecting: the product itself; the product’s quantity; size and other features; delivery or pickup address; time of delivery or pickup; payment options.
ClickToEat Food Delivery App
10660389
The designs had been converted to WordPress website using best practices. https://www.jamesandrew.co.uk/
Wordpress
The designs had been converted to WordPress website using best practices. https://www.jamesandrew.co.uk/
Wordpress
The designs had been converted to WordPress website using best practices. https://www.jamesandrew.co.uk/
Wordpress

Reviews

Changes saved
Showing 1 - 4 out of 4 reviews
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5.0
$32.00 USD
Amelia WordpressPlugin Booking Customisation
Yan is an exceptional javascript and wordpress expert. He was able to customise the wordpress plugin and do it to a perfect result. I highly recommend him.
JavaScript
WordPress
WordPress Plugin
A
Flag of Shamsul I.
@aburuqayyah05
•
1 month ago
1.0
$30.00 USD
Regular expression help
Provided bulky solution. Even made several attempts, but still hasn’t managed to do what I requestee. I ended up finding the elegant solution myself.
Java
JavaScript
Software Architecture
HTML5
jQuery / Prototype
I
Flag of Anna S.
@IrAl1
•
6 months ago
5.0
$150.00 USD
Full-Stack Development
This is the second project we have hired Yan for. Yan has done exceptional work in a timely and efficient manner. We were very pleased with the work and will most likely work with Yan again. I would not hesitate to hire Yan and highly recommend Yan. Great Work!!!! Thank you again Yan!
Node.js
Express JS
React.js
Redux.js
PostgreSQL Programming
J
Flag of Joseph C.
@JacSA
•
2 years ago
5.0
$200.00 USD
React.js Frontend Development -- 2
Yan H was able to meet al the requirements of the project and was very efficient and professional. I would recommend Yan H to any client will most likely hire Yan H again. High quality of work on time and on budget.
JavaScript
HTML5
HTML
Node.js
React.js
J
Flag of Joseph C.
@JacSA
•
2 years ago

Experience

Senior Software Engineer

Novosoft
Jul 2018 - Jan 2022 (3 years, 6 months)
- Built and managed a team of four back-end and front-end developers. - Responsible for system architecture. - Integrated several web services (booking, payments, boats availability). - Created a fully functional back-end platform using Python/Django. - Used Redis to create a cache layer when importing data from external sources (web services). Technologies: Node.js, Postgres, Express, TypeScript, React, AWS, Project Management

Senior Software Engineer

Elsevier
May 2015 - Jun 2018 (3 years, 1 month)
- Created a SPA apps using React.js and Express framework - Queried and mutated information from the backend using GraphQL with React Apollo. - Created a set of complex forms for editing information about homes, certifications, and other related data, including uploading photos. - Translated Sketch files provided by a designer to a responsive web design that works well with mobile and desktop browsers, using a combination of styled components and Bootstrap.

Full-Stack Developer

InfiniteSoft
Jan 2011 - Apr 2015 (4 years, 3 months)
- Worked as a full-stack developer and developed Saas applications. - As a front-end developer, was involved in UI/UX development, sliced design files to the mobile-responsive and pixel-perfect solution, and integrated into Angular and React.js. - As a back-end developer, developed REST APIs and web services using Node.js and Firebase. Technologies: JavaScript, AngularJS, React.js, Saas, Node.js, Agile, Microservices

Education

Bachelor's degree

Dalian University of Technology, China 2006 - 2010
(4 years)

Contact Yan H. about your job

Log in to discuss any details over chat.

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Top Skills

JavaScript 3
HTML5 2
Node.js 2
React.js 2
Java 1

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