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About

SJ.Wu
Author
SJ.Wu
Backend microservices in production, now also building applied ML / computer vision for identity verification (liveness & deepfake detection). Ex-SSD firmware engineer.
Table of Contents

I’m a software engineer based in Taipei. My day-to-day is backend microservices — Spring Boot / Spring Cloud services, distributed transactions, caching, observability, and CI/CD — and I’m currently building applied machine learning / computer vision for identity verification: face liveness and deepfake detection running as a production service.

Before backend I spent several years in SSD firmware (FTL, garbage collection, wear-leveling, power-loss recovery), which is where I got comfortable reasoning about systems from the hardware up.

What I work with
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  • Backend — Java, Spring Boot, Spring Cloud, distributed transactions (Seata), MySQL / PostgreSQL, Redis, message queues
  • Cloud & DevOps — Kubernetes, OpenShift, Docker, GitLab CI/CD, Grafana
  • ML / CV — Python, PyTorch, ONNX, FastAPI; CNN & gradient-boosting models, full train → evaluate → deploy pipelines
  • Also — C/C++ (SSD firmware), database versioning with Liquibase, TDD

Talks
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  • JCConf 2024Using Liquibase to assist customer data migration: from adoption to integrating it into the project.

Publications
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  • Gaze tracking for smart consumer electronics — IEEE International Conference on Consumer Electronics (ICCE), 2014.
  • High speed gaze tracking with visible light — International Conference on System Science and Engineering (ICSSE), 2013.

Education
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  • M.S., Electrical Engineering — National Taiwan Normal University
  • B.S., Applied Electronics Technology (EE) — National Taiwan Normal University

Certifications
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  • TOEIC 835 (2023)
  • NVIDIA DLI — Fundamentals of Deep Learning for Computer Vision (2019)