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Jingshan YuanJY

Jingshan Yuan

Backend Engineer

€350/day
Voorschoten, NL
3-7 years
Rust
Assembly language
Embedded Systems
IT-Security
System engineering

Average response time: 1 hour

About Jingshan

I am a self-driven learner with broad interests, especially in backend development, algorithm optimization, and debugging. I also value teamwork and believe that a united team is the key to success. Recently, my interest is on formal system verification.

  • Chinese

    Native or bilingual

  • English

    Fluent

Can work on-site
Voorschoten (up to 50km)

Experience

  • freelance
    Object Detection Deployment
    January 2021 - January 2022 (1 year)
    Developed and deployed a low-latency object detection system. Optimized inference per-
    formance by zero-shot learning and lightweight architecture design (YOLO) in PyTorch.
    Reduced deployment cost by replacing GPU servers with 2-core 8GB CPU instances while
    maintaining real-time detection performance for third-party client applications.
    Python Pytorch Computer Vision AI Automation artificial intelligence
  • freelance
    Backend Engineer, Freelance
    January 2021 - January 2023 (2 years)
    Developed and maintained a high-volume financial payment aggregation system using Type Script,GraphQL,Nestjs and TiDB database. Integrated multiple third-party payment APIs
    and optimized ElasticSearch for large-scale transaction queries. Implemented CI/CD pipelines
    with JetBrains Space, Docker, and Kubernetes, and automated deployment scripts for
    production environments. Resolved complex database and API inconsistencies, improved fault tolerance, and enhanced system reliability through Python-based monitoring and order-tracking
    tools.
  • freelance
    PDF Information Extraction
    January 2019 - February 2019 (1 month)
    Analyzed university curriculum dependency structures from PDF documents for a client. Due
    to dataset and budget constraints, designed a lightweight parsing approach based on PDF
    layout structure instead of traditional NLP pipelines, achieving high accuracy at minimal cost.
    The original estimated model training cost was about €1000, which was reduced to roughly
    €100 through structural parsing
    Machine learning Data Engineer NLP Data mining AI Automation

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Education

  • BSc
    Leiden University
    Data Science & Artificial Intelligence

Certifications

  • Silver Division
    United States of America Computing Olympiad
    2023
  • Meritorious Winner
    International Mathematical Modeling Challenge
    2022

Skill set

Rust
Python
Java
Typescript
JavaScript
C#
C++
Unity
Assembly language
SQL

Categories