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JWINEE

About Me

I'm Junyi Peng, a senior software developer at Kroger in the Cincinnati area. For nearly 8 years I've built kroger.com with React and TypeScript, working on the experiences customers rely on most: choosing how to shop (pickup, delivery or ship), picking a time slot, and checking out.

Today I work on the CMS-driven rendering layer that turns content data into live pages, so business teams can change the site without waiting on a front-end release.

I'm also deep into AI-assisted engineering. I designed a code review workflow that pairs multiple LLM coding agents, and I'm currently expanding into back-end development with Python and PostgreSQL.

Experience

Senior Software Developer

Kroger • Jan 2023 – Present

Build the CMS-driven rendering layer for kroger.com. Previously owned time-slot selection and checkout processing. Designed a multi-model AI code review workflow for the team.

Software Developer

Kroger (contractor) • Jan 2019 – Dec 2022

Led delivery of the modality selector (Pickup, Delivery, Ship), redesigned the responsive site navigation, and built the header, footer and store locator.

Education

M.S. in Computer Science

Illinois Institute of Technology • 2015 – 2017

B.S. in Computer Engineering

New York Institute of Technology (Nanjing campus) • 2010 – 2014

Skills & Expertise

Languages

TypeScriptJavaScript (ES6+)HTML5CSS3

Front end

ReactReduxNext.jsTailwind CSSFramer MotionStorybookReact Native (personal projects)

Architecture

CMS-driven UIREST API integrationComponent librariesAnalytics instrumentation

Testing

JestReact Testing LibraryPlaywrightA/B testing

AI-assisted engineering

Claude CodeCodex CLIModel Context Protocol (MCP)

Tools

GitJiraConfluenceKibanaPostman

Interested in working together?

Let's Connect