Jiahua Ma
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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Associate Design Engineer - Visa Inc.
February 2022 - Present
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Build pixel-perfect layouts, user interface components, and single-page
applications for various Visa websites and apps using Flutter for iOS,
Android, and Web.
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Collaborate closely with UX designers, software engineers, and product
managers.
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Conduct thorough analysis of existing software to identify Usability and
Accessibility issues and provide actionable recommendations.
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Stay abreast of the latest trends in user experience and interface
design.
- Handle inquiries and support requests from stakeholders.
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Work alongside Design leadership to foster and maintain a motivated team
of UX professionals.
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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.
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Software Engineer Intern - GEO International Education
November 2020 - February 2022
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Designed a Cub Companion which reduces the stress and anxiety in
childhood cancer patients through evidence-based coping mechanisms.
- Prototyped the Cub Companion mobile app with Adobe XD.
Professional Skills
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UI/UX
Flutter, React.js, HTML, CSS, JavaScript, Adobe XD, Firebase
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Data Science
Python, R, Tableau, SQL, Keras, Tensorflow, Numpy, Pandas, Matplotlib, SPSS,
Weka, Web Scraping
Leadership and Involvement
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Vice President, Stage Manager, Actor, Director, Director's Assistant
August 2018 - December 2020
- 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.