
Congwen Ma
Software Developer
Congwen is a dedicated web developer specializing in developing full-stack web applications using practical frameworks. He's passionate about solving problems for others. A good solution to Congwen usually requires a dose of creativity that requires more effort to adapt and perfect.
Portfolio
Availability
Preferred Environment
Kubernetes, Amazon Web Services (AWS), Docker, Jenkins, Scala, Ruby on Rails (RoR), React, Bash Script, PostgreSQL, PostGIS
The most amazing...
...thing I've made was a Chrome DevTool extension that renders a visual tree graph of my company's proprietary framework.
Work Experience
Principal Software Engineer | Engineering Manager
Rally Health
- Constructed solutions to solve business requirements in an efficient way.
- Proposed and led data schema changes that improved the product with minimum effort, eliminating tech debts.
- Led the engineering effort of developing a new product.
Full-stack Software Engineer
UpCounsel
- Built concrete Ruby on Rails APIs that carried out tasks via Node.js microservices.
- Developed and implemented a strategy for migrating the front-end codebase to React additively.
- Designed and implemented NoSQL solutions based on an in-house framework.
Software Engineer
Centro
- Constructed a Chrome developer tool to help developers debug and analyze a proprietary state-management framework.
- Used JSCodeshift (a JavaScript code-mod toolkit) to make application-wide code changes to replace deprecated APIs and code syntax.
- Constructed middleware that allowed React to work with our proprietary model framework.
- Built and analyzed an ad exchange platform with React/Angular 1 frameworks.
- Developed friendly Ruby on Rails APIs for our front-end application.
Software Engineer
Sears
- Developed responsive mobile web applications with AngularJS.
- Mentored experienced developers who were new to JavaScript.
- Analyzed front-end technological options (CSS frameworks, Protractor, design patterns, and more) and helped the team settle upon our technology foundation.
- Led the development of Sears eCoupon application with similar criteria and oversaw its deployment and integration with Sears' subsidiary domains.
Experience
Cartographer
The noticeable outcome of this project includes:
• New developers can understand the purpose of our framework much quicker.
• Enabled the back-end developers to become better at writing front-end state-related code and understanding the underlying framework.
• Reduced the amount of unit testing that needed to be done for state management.
• Provided a common ground for discussions and planning around state management; this tool became the main visual representation used to analyze options.
Xiang Qi
eCoupons
https://www.shopyourway.com/mp/app/10041/lIt provides a list of coupons that have certain categories and availability tagged with them. The user may filter coupons by specifying the criteria (e.g., category). The application was eventually restyled to fit into Sears/Kmart mobile web application. I led a small team of two developers to focus on the user experience distinctions between the tablet and phone.
My main roles in this application include:
• Performant loading and filtering process with the resource APIs which present coupons efficiently to the user.
• Optimized the JavaScript code to achieve a maximum speed between when the data is received and when the coupons are displayed.
• Automated integration with Sears, Kmart, and Shop Your Way.
• Enhanced the end product which included resizing and animating the layout transition from portrait vs landscape view in a pixel-perfect manner.
• Oversaw its delivery and QA feedback.
Official URL:
https://www.shopyourway.com/mp/app/10041/l
Official Sears URL (rethemed and restyled for the tablet):
https://m.sears.com/promos/ecoupons
Centro Media Manager
I handled the development and communication of its inventory management Rails API. I also built the front-end application as well as maintained and designed the APIs that connected our in-house JavaScript frameworks for communication with third-party APIs such as React.
Sears White Label Cart and Checkout
You'll need to simulate a mobile device in order to access the app without being redirected.
Skills
Languages
JavaScript, Ruby, Elm, CSS, Bash Script, TypeScript, Java, Java 6, Scala
Frameworks
.NET, AngularJS, Ruby on Rails (RoR), Hyperapp, Electron, React Native, Bootstrap, Redux, Protractor, Express.js, Angular
Libraries/APIs
Statechart.js, React, Node.js, TensorFlow, D3.js, Vue, jQuery
Tools
Webpack, Jscodeshift, Rollup, Vim Text Editor, Jenkins, Chrome Developer Tools
Paradigms
Behavior-driven Development (BDD), JavaScript Design Patterns, Functional Programming, Agile
Platforms
MacOS, Visual Studio Code (VS Code), Linux, Amazon Web Services (AWS), Kubernetes, Docker
Other
Mobile Web, Front-end Development, Elm Architecture
Storage
PostgreSQL, MySQL, MongoDB, PostGIS
Education
Bachelor of Science Degree in Infromation Systems
SUNY Stony Brook University - Stony Brook, NY, USA