Jinxin He, Developer in Shanghai, China
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Jinxin He

Verified Expert  in Engineering

Software Developer

Shanghai, China

Toptal member since July 20, 2022

Bio

Jinxin graduated with a degree in computer science and has six years of expertise in the fields of web front-end and some full-stack development. He has served companies ranging from VC-backed startups to pre-IPO firms, big tech companies in China, and a startup in the United States. Jinxin worked in a multi-national development team and remote in-office set up.

Portfolio

Italic
Next.js, React, TypeScript, Node.js, GraphQL, Go, Tailwind CSS, CSS
Yonghui Superstores
Flutter, React, Vue, React Native, Redux, CSS, HTML
Qiniu Cloud
React, Vue, AngularJS, Go, Material UI

Experience

  • React - 5 years
  • JavaScript - 5 years
  • Python - 3 years
  • TypeScript - 3 years
  • Go - 2 years
  • Next.js - 2 years
  • Node.js - 2 years
  • React Native - 1 year

Availability

Part-time

Preferred Environment

Slack, Jira, TypeScript, JavaScript, React, Angular, Vue, React Native, Flutter, Go

The most amazing...

...project I've worked on is the feedstream, which generated $3 million daily, and a cloud service provider that touches millions of developer experiences.

Work Experience

Front-end Engineer

2022 - 2022
Italic
  • Managed aspects of the feature development of a marketplace shopping site.
  • Participated in the daily feature delivery and standup meetings. Synced with the product manager in the United States.
  • Planned the budget for front-end expenses to save over US$10,000 in budget. Worked on the site's revamp experience and made it mobile-friendly.
Technologies: Next.js, React, TypeScript, Node.js, GraphQL, Go, Tailwind CSS, CSS

Front-end Team Lead

2021 - 2022
Yonghui Superstores
  • Worked on various product lines across the department of supply chains.
  • Shipped the flutter in-app web app from zero to hero in a few weeks.
  • Managed and mentored five front-end team members who delivered excellent output.
Technologies: Flutter, React, Vue, React Native, Redux, CSS, HTML

Front-end Engineer

2020 - 2021
Qiniu Cloud
  • Worked as the main developer of Qiniu Cloud portal for live-streaming and content delivery network (CDN) services.
  • Refactored legacy front-end projects from Angular and Vue into a React codebase.
  • Kickstarted several internal tools to bootstrapping developer efficiencies.
Technologies: React, Vue, AngularJS, Go, Material UI

Front-end Engineer

2019 - 2020
Baidu
  • Worked on the front part of the newsfeed, which contains videos, images, articles, and channels, generating billions of views daily.
  • Managed the internal a/b testing platform and iterated and enhanced it.
  • Handled internal content management platform for newsfeed and developer for in-app web view for the innovative incubating project.
Technologies: React

Full-stack Developer

2017 - 2019
SAP
  • Worked on an SAP eCommerce solution from incubating to fully public product release.
  • Managed a portal for a merchant and operated product-related duties.
  • Assisted in developing several microservices, user, order, and shipping.
Technologies: Java, Angular

Experience

Blockchain Explorer

https://explorer.phoenix.global/
I served as the primary and only front-end developer of this project.

I own all aspects of the delivery, including communication with the UX designer, aligning with the product manager, collaborating with the back-end team, and presenting to the stakeholder.

SaaS Data Product from TheSight Software

https://thesight.hcmsps.com/
I was one of the leading senior developers, developing the CI/CD flow, front-end architecture, feature implementation, and managing a challenging project similar to generating PDF from user charts configuration on the portal.

It is a machine learning platform that provides data analytics services similar to Palantir but in the finance sector.

eCommerce Marketplace for a Startup in the United States

http://www.italic.com
A Los Angeles-based startup, direct to customers eCommerce marketplace. I worked as a front-end engineer to enhance the architecture and deliver features in the scrum. I also set up and improved workflows and catered to user experience on both PC and mobile.

AI Language Learning Platform

Served as a full-stack developer for Dors, a website targeting Japanese students who want to learn English via an AI-powered English teacher. While at Dors, I was responsible for the Go back end, React front end, and some AWS SRE work.

Dors.ai

The cutting-edge "LLM-fueled language platform" revolutionizes English language learning for non-English speakers. Harnessing the power of LLM technology, this innovative platform offers a tailored and dynamic learning experience that surpasses traditional methods. It aims to empower individuals from diverse linguistic backgrounds with proficiency in English.

Through personalized content and interactive modules, learners can grasp grammar rules, expand their vocabulary, enhance pronunciation, and develop conversational skills. Immersive exercises and quizzes allow learners to practically apply knowledge in real-life scenarios, honing their language abilities. Continuous assessment and progress tracking enable personalized content delivery, catering to individual needs.

The platform's user-friendly interface ensures easy navigation and accessibility across devices, enabling learning on the go. A supportive community of fellow learners and educators fosters a collaborative environment for cultural exchange and knowledge sharing.

Education

2011 - 2015

Bachelor's Degree in Computer Science

University of Alberta - Edmonton, Canada

Skills

Libraries/APIs

React, Vue, Node.js

Languages

TypeScript, JavaScript, CSS, HTML, TypeScript 3, Python, Java, C, C++, Go, GraphQL, HTML5

Frameworks

Angular, Next.js, Material UI, React Native, Flutter, UmiJS, AngularJS, Tailwind CSS, Redux

Platforms

Mobile

Storage

PostgreSQL

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