Experience

Bigtera

• Taiwan
• Information Technology & Services
• 1 - 100 Employee

• Senior Software Engineer / Supervisor Engineer

  • May 2018 - Present

  Experienced with distributed systems, Ceph, HCI (proxmox), AWS S3 protocol, RESTful APIs, event-driven daemon design, system security. Solid trouble shooting techniques. Familiar Python and C/C++ programming. ◦ Developed Ceph Object Storage (AWS S3 compatible) applications ■ Including S3 Object Lock, S3 Event Notification, S3 Data Live Migration, etc. ■ Multi-site environment management and trouble shooting ■ S3 Small Object Compaction for EC data pools, for our small object benchmark: → Improved write performance by 104%, reduce response time by 58% → Improved read performance by 400%, reduce response time by 81% → Saved 52.7% storage space ■ C++, Python, Sanic ◦ Object storage management backend APIs / daemons ■ Python / Flask ◦ File tiering (libcephfs part) ■ Using flock and hidden file to implement the behavior of client read/write/stat a file ■ C++ ◦ Developed Hyper-Converged Infrastructure solution ■ Network USB for vm live migration ■ Python (Flask) Show less



QNAP Systems

• Taiwan
• IT Services and IT Consulting
• 500 - 600 Employee

• Engineer in Cyber Security Technology Dept.

  • Jan 2016 - Mar 2018

  • Analyse security issues for reports, hackers, support cases, etc. • Analyse malware attacks targeting QNAP devices. • Discover vulnerabilities. • Develop automated tool for department use. • Setup and manage an an information sharing platform, a Gitlab server, and honeypots. • Analyse security issues for reports, hackers, support cases, etc. • Analyse malware attacks targeting QNAP devices. • Discover vulnerabilities. • Develop automated tool for department use. • Setup and manage an an information sharing platform, a Gitlab server, and honeypots.