Jing Pei
Senior Software Engineer at Credit Karma
Oakland, California, United States
Summary
👤
Senior🎓
Top SchoolJing Pei is a Senior Software Engineer based in Oakland with 11 years of full‑stack experience, specializing in large-scale JavaScript applications and pragmatic Rails work. At Credit Karma she has progressed through multiple engineering levels, shipping customer-facing features and optimizing performance and UX across complex codebases. Her background includes impactful front-end architecture and A/B testing work at NerdWallet and reusable UI component libraries, plus automation and analytics tooling earlier in retail roles. Jing contributes to meaningful open‑source and mission-driven projects—such as enhancing a Rails case management system for abortion funds—demonstrating a blend of product empathy and hands‑on backend/frontend implementation. Trained in cognitive science with a CS minor, she pairs user-centered thinking with technical rigor to drive fast iteration and measurable outcomes.
11 years of coding experience
9 years of employment as a software developer
Hack ReactorCoach Training Program, Coach Training Program at Co-Active Training Institute (CTI)Bachelor of Arts (B.A.) Cognitive Science, Bachelor of Arts (B.A.) Cognitive Science at University of Pennsylvania
English, Chinese, Spanish
Stackoverflow
26reputation
1kreached
1answer
0questions
Github Skills (16)
rails10
coffeescript10
ruby-on-rails10
html9
activerecord9
rest-api8
css8
api-rest8
restful-api8
api-design8
database-design8
bootstrap7
git7
bootstra7
styled-jsx6
Programming languages (4)
Github contributions (5)
DARIAEngineering/dcaf_case_management
Mar 2017 - Mar 2017
Rails-based case management system for abortion funds
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:6 commits, 4 PRs, 3 comments in 1 day
Contributions summary:Jing contributed to the Rails-based case management system by implementing new features and improving existing functionality. They worked on calculating outstanding balances, expanding the clinic model with additional fields, and integrating a clinic finder gem. These changes involved both front-end (CoffeeScript, views) and back-end (models, controllers, routes) modifications, demonstrating full-stack development. The user also addressed UI updates and enhancements for improved user experience.
rails
jingpei/date-app
Oct 2015 - Nov 2015
Contributions:48 pushes, 16 branches in 25 days
javascriptreactnodejs
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