Shijie Yin

_

About

Hi, I'm Shijie (Jimmy) Yin – a passionate software engineer, lifelong learner, and AI enthusiast committed to building innovative, scalable solutions that make a difference.

I bring expertise in front-end and back-end development, honed through years of professional experience at top-tier organizations like Alibaba Group and Wind Information Co., Ltd. My journey includes:

  • Creating Impactful Products: Developed React-based projects for global platforms, supporting over 200 million users, and implemented scalable Node.js back-end APIs.
  • Innovating with Data: Designed real-time monitoring systems that significantly reduced ticket resolution times and prevented major production incidents.
  • Driving Optimization: Led front-end migrations from legacy frameworks to modern solutions, improving performance by 40%.
  • Currently pursuing advanced studies in Informatics at Northeastern University, I also actively contribute to projects that align AI with human feedback and optimize website experiences for non-profits like Operation Smile Canada.
Outside of coding, I am captivated by the potential of AI and cloud technologies, aiming to earn AWS Cloud Architect certification and stay at the forefront of innovation. My goal is to join a top-tier North American tech company where I can leverage my skills to solve complex challenges.

Experience

2024

Outlier

Software Developer
  • Help LLM align with human feedback in coding and reasoning.
  • Craft and answer questions related to computer science in order to help train AI models.
  • Evaluate and rank code generated by AI models.
2021 - 2023

Alibaba Group

Software Development Engineer
  • Developed React-based projects for mobile and PC finance platforms and collaborated with a cross-functional team to deliver solutions that supported 200 million users globally.
  • Built scalable Node.js back-end APIs supporting high-traffic e-commerce services.
  • Implemented the User Behavior Analysis System and real-time Error Monitoring System, reducing ticket resolution time by 30%, preventing 3 major production failures within 1 minute.
2019 - 2021

Wind Information Co., Ltd

Front-end Engineer
  • Spearheaded the front-end refactor of legacy projects, migrating from jQuery to React, resulting in a 40% improvement in performance and maintainability.
  • Played a key role in the development and maintenance of a mobile UI framework, contributing to the app's user interface consistency and performance.
  • Optimized financial models using Python for back-testing premium quantitative algorithms.

Education

2023 - 2025

Northeastern University

Master's Degree in Informatics - Cloud Computing
2015 - 2019

Yangzhou University

Bachlor's degree in Computer Science