Name:
Address:
Email:
ChangYun Du
Shenyang, Liaoning, China 11000-
Cover Letter
Hello.
Thanks for taking your time reading my cover letter.
I have been a Senior Full-stack Web and Mobile Developer with profound architectural
understanding of Web and Mobile Frameworks for last decade.
To date, I have successfully completed over 50+ Web and Mobile developments.
From concept development to launch date, I provide product and service that brings your vision to
light in a way that respects your time, budget, and accurately reflects your company identity.
I have developed Challenging Projects – ERP, MES, CRM, E-commerce, Hotel Booking System,
Delivery System, Taxi App, Chat App, Block chain related projects etc.
I am proficient with Jira, Trello, Git, Babel and Webpack as well as good communication skills.
I am dedicated to building the perfect website and application on time.
I uphold the highest standards for project planning, management, documentation, execution, code
review and coding style.
I am looking for a long-term relationship with a Team or Company for 3+ years.
Thank you.
Major Skills
Web Development
Angular.js (8 years), React.js/Redux/Redux-saga(5 years), Vue.js/Vuex (3 years)
PHP(10 years) and Laravel(6 years)
Javascript(12+ years) and HTML5/CSS3/SASS/SCSS
C/C++ (12+ years), Microsoft Visual Studio 2019
Python/Django/Flask (10 years)
Responsive Web Design, AJAX
Java/J2EE (10 years)
Node.js (8 years)
Golang (5 years)
Ruby on Rails (5 years)
REST, SOAP
DevOps, CI/CD
Docker, Git, Jira, Trello.
Project Architecture and Structural Design
Project Planning, Documentation, Risk Management
Code Review, Coding Style, Unit Test
Mobile Development
React Native
Swift4.0+
DB
PostgreSQL, MongoDB, OracleDB,
MYSQL Sqlite, MsSQL
MariaDB, ArangoDB
BlockChain & Wallet & Coin
Education
Beijing Science and Technology University (2006 – 2010)
Degree & Certification
Master’s Degree of Computer Science
CCNA Certification
Employment History
S/W Web Developer at LGCNS Data Center of China (2010~2012)
Frontend Developer at Squint Opera, UK (2012~2015)
S/W Architect/Engineer at Porcheson LTD, China (2015~2018)
Freelancer on UpWork, Full time (2018 ~)
Project List
October 2016 – Present
Project #6: Surprise HR. | Mar. 2018 – Oct.2018 | United States
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Built SAAS for surprising your employees.
Built under the following priciples.
Behavioral economics challenges traditional views about motivating and
rewarding employees.
Traditional employee rewards quickly lose their impact due to “adaptation.”
Full responsive and well designed UI.
Aid to intensify emotional impact.
Project #5: New Brands (eCommerce) | May. 2017 – April. 2018 | France
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Novel style eCommerce system.
Self managed Payment gateway.
Stock management system.
AI for marketing strategy.
Multi vendor support.
Coordinated design, production and delivery of multimedia marketing collateral/
web content.
Managed all social media presence and content on multiple platforms.
Executed targeted email marketing programs resulting in increased open and
conversion rates over sporadic email blasts.
Developed communications and customer engagement strategies to enhance brandawareness.
Project#4: Vacation Rentals(Hotel Booking System) | Feb. 2019 – Nov. 2019 | Australia
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Project #3: AuAssist | Oct. 2016 – Mar. 2017 | United Kingdom
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Fast and Low cost search for the perfect vacation home for rent.
Live chat for the client to contract the owner or property manager directly.
Used SSR technique so that the users feel the site is very fast.
Booking automation API integration.
Easy to book car repair.
Able to Create and Send VHC and Invoice
Google map integration to find the location of dealer.
Reasonable work flow and kind reminders.
Paypal && Stripe payment processor integration.
Keyfinder integration which make the client happy and easy to use.
Project#2: Foodcare | May. 2014 – Sep.2015 | United States
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CRM for nutrients , recipes, ingredients and restaurants.
Project#1: MES | Jan 2016 – Nov 2016
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This system is an information system that connects, monitors and controls complex
manufacturing systems and data flows on the factory floor. Then main goal of an MES
is to ensure execution of the manufacturing operations and improve production
output.
This system helps achieve that goal by tracking and gathering accurate, real-time data
about the complete production lifecycle, beginning with order release until the
product delivery stage for finished goods.
The MES collects data about product genealogy, performance, traceability, material
management and work in progress (WIP) and other plant activities as they occur. This
data, in turns, allows decision-makers to understand the current setting of the factory
floor and better optimize the product process.
Easy integration with machines
SCADA Designer in web view
High speed and optimized scheduling
Quality Management
Intelligent Decision Support
ISA 95 based Inventory management & Production management
