Jiahua Ma
Summary
Highly skilled Front-End Developer with 4+ years of experience
specializing in building responsive web and mobile applications using
React.js, Flutter, and Firebase. Proficient in developing scalable and
accessible user interfaces, with a strong focus on performance
optimization and UI/UX design using Figma and Adobe XD. Adept at
collaborating with cross-functional teams to deliver innovative and
user-centric solutions.
Education
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Master of Science in Informatics (Human-Computer Interaction) - The
Pennsylvania State University (2020-2021)
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Bachelor of Science in Applied Data Sciences - The Pennsylvania
State University (2016-2020)
Professional Experience
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Lead Front End Engineer - Visa Inc.
February 2022 - Present
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Build engaging, usable, and accessible UI
applications/components/code libraries for mobile and web - in
the form of Flutter/Dart and technical notes.
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Analyze existing software for Usability and Accessibility issues
and provide recommendations for improvement.
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Work with a diverse team of product owners, UX designers, and
developers in a fast-paced environment, with quick iterative
cycles.
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Evangelizing UI/UX front-end best practices and Accessibility
for mobile and web.
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Fielding inquiries and requests for support from stakeholders.
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Work with Visa UX leadership team to attract, build, and
maintain an engaged team of UX professionals across the globe.
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Lead the development of the Visa Product Design System mobile
component library, driving key technical decisions and
overseeing the creation of critical mobile front-end components.
Personally contributed to over 50% of the mobile components,
ensuring the scalability and maintainability of Visa’s mobile
platforms.
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Co-founder, Front-end Lead - PsySpace
June 2020 - February 2022
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Designed and built an application to provide spontaneous and
personalized mental health support to emerging adults.
- Drafted the application prototype with Adobe XD.
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Built the application front-end using Flutter and employed the
MVVM data architecture.
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Designed a NoSQL database in Firebase Firestore for real-time
data rendering.
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Used Deep Learning approach to build multi-label classification
models on students’ mental health challenges.
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Lead a group of six members to develop a mental health content
library integrated into the application.
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Research Assistant - Penn State: User Agency Lab in College of IST
May 2019 - December 2021
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Co-authored a paper accepted at The 23rd ACM Conference on
Computer-Supported Cooperative Work and Social Computing (CSCW
2020).
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Designed an application to help ride-sharing drivers reduce cost
on tires using Adobe XD.
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Built a mobile application prototype with Flutter and Firebase
that was presented to the Independent Drivers Guild.
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Built a model based on a plugin that better reflected the
fairness of individual tasks determined by experts on Amazon
Mechanical Turk (AMT).
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Executed data scraping on AMT and constructed a database using
MySQL for content analysis.
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Analyzed comments left on TurkOpticon (a plugin of AMT which
workers can rate requesters and tasks) by coding repeated
information with sentiment analysis and statistical analysis in
R.
Professional Skills
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Web Development
React.js, HTML, CSS, JavaScript (ES6+)
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Mobile Development
Flutter, Dart, SwiftUI, React Native, Firebase (Backend)
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Design Tools
Figma, Adobe XD
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Other Tools and Technologies
Python, R, Tableau, SQL, SPSS, Weka, Web Scraping, Unity (C#), Godot
(GDScript)
Leadership and Involvement
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Vice President, Stage Manager, Actor, Director, Director's
Assistant
- Served as stage manager in drama Rhinoceros in Love.
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Directed skit Oblivion on Penn State University Chinese Students
and Scholars Association 2019 Mid-Autumn Festival Gala.
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Performed in drama Mumble Jumble as the Bulb and the Japanese
Student. Assisted the play as director's assistant.