Qian J.
Linux Kernel Expert/Network/Embedded/Cloud/Performance/Troubleshooting
Highly experienced and skilled in linux system, linux kernel and linux system programming. I had served in NXP semiconductor for 7 years, and worked in linux field for more than 15 years. Linux Kernel - Subsystem: KVM Virtualization, Filesystem, Network, USB, Linux Video - Debugging: Performance, System Analysis, Software Debugging, OOPS Embedded Linux - Frameworks: OpenWRT, Yocto, Android - Device Driver: USB, XHCI, WIFI, LTE, Network, Camera Linux System Development - System: Ubuntu, Centos, Archlinux, Raspberry pi, Orange pi - Network: VPN, VXLAN, IPTABLE, Router, Wireguard - Virtualization: Qemu, Libvirt, Virtualbox, Docker, K8s Programming Skills - C/C++ - Bash/Makefile - Android - Python
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $39k
Billed in all: $567,240$567k
$9.8k in the last 6 months
Across 141 contracts
Earnings, last 30 days
Skill rankings: Top 0.75% in Troubleshooting
Top 1% in 2 of 14 skills, ranked by MRR among everyone on Upwork with the skill.
- Camera259 freelancers · 🇨🇳 #1Top 0.77%🇨🇳#1 of 4
- Kernel-based Virtual Machine39 freelancers · 🇨🇳 #1Top 5%🇨🇳#1 of 1
- Kernel68 freelancers · 🇨🇳 #1Top 4%🇨🇳#1 of 2
- #4System Programming76 freelancers · 🇨🇳 #1Top 5%🇨🇳#1 of 2
- #9Ubuntu544 freelancers · 🇨🇳 #1Top 2%🇨🇳#1 of 7
- #11Troubleshooting1,460 freelancers · 🇨🇳 #1Top 0.75%🇨🇳#1 of 7
- #12Embedded Linux360 freelancers · 🇨🇳 #1Top 3%🇨🇳#1 of 11
- #14Network Engineering770 freelancers · 🇨🇳 #1Top 2%🇨🇳#1 of 5