# James Yu

> UI/UX Designer & UI Developer

Location: Piscataway, New Jersey, United States
Profile: https://flows.cv/jamesyu

Looking for C2C positions as senior Front-end/UI developer and UI/UX designer.

6+ years of professional experience as a Senior UI developer in design, development and test of web-based and front-end applications.
Expert in front-end technologies including HTML/HTML5, CSS/CSS3, DOM, Bootstrap, JavaScript, AngularJS, Angular2, ReactJS, React Redux, JSON, jQuery and more.
Proficient in SDLC phases(analysis, design, development, testing and deployment) and highly experienced in gathering and analyzing user requirements.
Expert in UI/UX design tools including Photoshop, InVision, Sketch, Illustrator and Adobe Effects.
Expert in designing and specifying user interfaces and information architecture using participatory and iterative design techniques, including observational studies, customer interviews, usability testing, and other forms of requirements discovery.
Rich experience in SPA(Single Page Application) development with ReactJS, AngularJS framework, Angular UI router and Angular UI(Bootstrap) and creating custom directives, filters and services.
Proficient in building Responsive Web Design and browser-compatible websites with Bootstrap framework to implement mobile-first design principal.
Proficient in using JavaScript libraries including jQuery and its component JQuery UI.
Proficient in DOM(Document Object Model) to use interacting with objects in HTML, XHTML and XML documents.
Solid experience in using server side environment Node.js with Express.js.
Experienced in debugging codes and in unit test by using Jasmine, Mocha(with Chai) with exposure to A/B Testing.
Familiar with various testing including Black Box, White Box, Gray Box, Integration, Functional, Stress, Regression, System Testing, Data Driven and Performance.
Familiar with knowledge of database including SQL, MySQL and MongoDB.
Proficient in using version control tools such as Git, TFS, GitHub and Tortoise SVN and highly participated in Agile software development.

## Work Experience
### UI/UX Designer & UI Developer @ OPERR Technologies, Inc
Jan 2015 – Present | Greater New York City Area
Completed UI/UX design with Photoshop, Illustrator and Sketch for web-end and mobile end.
Completed user testing and usability analysis with wire-framing and prototyping tools such as InVision.
Conceptualized user interfaces and workflows with attention to human-computer interaction and user-oriented design best practices, constantly for the simplest, most intuitive and pleasant user experience 
Designed new features for, and vastly improved the user experience of iOS and Android app, adhering to iOS7/8 design guidelines. 
Generated and iterated on wireframes, high-fidelity mockups and usability prototypes, and assisted in the creation of information architectures. 
Worked on user data analysis, user interviews, and customer feedback analysis to improve user experience.
Integrated Bootstrap to implement responsive web design for tablet and mobile devices, along with CSS3 media queries and event-based JavaScript for custom break point and custom UI component.
Adopted ReactJS and AngularJS to implement rich functions such as form validation, crud, grid list, search, sort, pagination, multi-selection, unit-tests etc., which can be more modularized and useable.
Introduced CSS3 animation to create vanilla CSS-based loading animations.
Implemented various custom Filters in AngularJS to format searching results.
Build user interfaces differently by breaking them into components using ReactJS.
Used AJAX to complete asynchronously updating real-time information.
Designed and achieved nested views and routing framework for SPA using Angular UI Router.
Built the web application from scratch using HTML/HTML5, CSS/CSS3 and ReactJS for page layout. 
Created Custom Directives for tables, map and so on to complete modularization and repeated use. 
Applied Angular UI bootstrap to create widgets like range date picker, popup modal box, pagination etc.
Independently completed A/B testing and unit testing with Adobe Target and Mocha.

### UI/UX Designer & Developer @ Carloha Inc.
Jan 2014 – Jan 2015 | Westbury
Completed UI/UX design with Photoshop, Illustrator and Sketch for web-end and mobile end.
Completed user testing and usability analysis with wire-framing and prototyping tools such as InVision.
Conceptualized user interfaces and workflows with attention to human-computer interaction and user-oriented design best practices, constantly for the simplest, most intuitive and pleasant user experience 
Used Google Analytics to build SEO strategies for the official website 
Designed new features for, and vastly improved the user experience of driver job app and taxi booking app based on iOS and Android, adhering to iOS7/8 design guidelines. 
Reporting to the Director of IT Department, planned, designed and delivered innovative UI/UX design solutions for taxi online dispatching platform, mobile end app and website. 
Conceptualized user interfaces and workflows with attention to human-computer interaction and user-oriented design best practices, constantly aiming for the simplest, most intuitive and pleasant user experience 
Generated and iterated on wireframes, high-fidelity mockups and usability prototypes, and assisted in the creation of information architectures. 
Used AngularJS and MVC framework to architect and develop the application.
Worked on JavaScript and Browser Cache mechanism for storing and retrieving data for the website.
Used AngularJS to implement custom Filters to format displayed data.
Developed all client-side logical implementation part of application with AngularJS controllers under specific modules, manipulating nodes in DOM tree.
Used JavaScript DOM manipulation and JavaScript event to generate the data result in UI.
Enhanced login authentication and rapid page redirecting with using SPA.
Created Responsive Design (Mobile/Tablet/Desktop) with HTML5 and CSS3.
Developed cross-browser/platform HTML5, CSS, JavaScript and React JS to match design specs for complex page layouts while adhering to code standards.

### UI Designer & Developer @ New York Mart Group
Jan 2011 – Jan 2014 | Greater New York City Area
Participated in Software Development Life Cycle including requirements analysis, UI design, coding and maintenance.
Completed Web/UI design with Photoshop, Illustrator and Sketch.
Converted UI design to front-end pages with HTML, CSS and JavaScript.
Created front-end page functions such as navigation bar, slide show, dropdown menu, button, modal form.
Utilized jQuery to achieve client-side elements Hide, Show, Event Handling, DOM manipulation and AJAX Call on JSON response that supports user to check events information.
Designed dynamic client-side JavaScript codes and jQuery to build web forms, page navigation and form validation.
Maintained user login status and saved logged-in user carts’ items until they check out using User Session and Cookies even if they log out without check out.
Used Firebug to traverse documents to debug the code.
Manipulated Nodes using DOM and DOM functions.
Involved in various testing methods and utilized Git to achieve version control.
Worked in Agile environment.

### UI Developer @ M&T Bank
Jan 2010 – Jan 2011 | Buffalo/Niagara, New York Area
Involved in software development lifecycle including designing, coding, testing and deployment.
Created custom and effective UI design with Sketch and Photoshop.
Adopted Agile for Development Methodology to improve software development process and elevate product while meeting defined goals and key deadlines.
Created optimized graphic websites and application interfaces with HTML, CSS and JQuery UI framework.
Used JavaScript to complete data validations.
Designed and developed intranet web applications with JavaScript and CSS.
Designed and developed front-end website with HTML, CSS, JavaScript and AJAX.
Performed asynchronous data validation with AJAX.
Developed code to hand web requests including Request Handlers, Business Objects and Data Access Objects.


## Education
### Master's degree in Computer Science
Binghamton University


## Contact & Social
- LinkedIn: https://linkedin.com/in/james-uideveloper

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Source: https://flows.cv/jamesyu
JSON Resume: https://flows.cv/jamesyu/resume.json
Last updated: 2026-03-31