Zhang Hongshen

Rednote-like social appDec, 2024 - Jan, 2025

Tech Stack: Spring Boot, Spring Cloud, Nacos, MySQL, Redis, Kafka, Elasticsearch, Minio, Freemarker

1. Implemented scheduled publishing for articles and full-text search functionality.
2. Used Freemarker template engine to render article detail pages, improving page load performance.
3. Performed offline article scoring and leveraged Kafka Streams for real-time score updates.
4. Implemented multi-level rate limiting, including Nginx rate limiting, Gateway rate limiting, and microservice-level rate limiting, to enhance service stability.

ModelCraftJan, 2024 - Now

Tech Stack: Swift, SwiftUI, SwiftData

ModelCraft is a native macOS App, which aims to help users to run local LLM more easily. It utilizes RAG to enhance the answer's quality. Meanwhile, the embedd model store can help users to download LLM without any other complex opearations. This App also includes other features, like knowledge base, management of LLM, promprt libraries and so on.

Lark RecruitmentJul, 2022 - Apr, 2023

Backend EngineerChina

1. Lark Recruitment System Decommissioning Project
   Participated in the decommission of old Lark recruitment system, developing and testing data migration scripts. Successfully migrated data from over 300 enterprises , completing the migration of approximately 20 data tables with a total of 200 million rows . The entire migration process was completed without any incidents.
2. Technical Owner of Lark Recruitment Headhunting Project
   Led requirement analysis and authored technical solutions for the headhunting project. During my tenure, no incidents occurred.
3. Unit Testing Optimization
   Led unit testing efforts within the team, improving and completing unit tests for existing projects. Increased the overall unit test coverage of all team projects by more than 10% on average and ensured that incremental test coverage consistently exceeded 70%.