Core Persona

Jack Li

I build infrastructure systems with a focus on availability, Linux middleware, Kubernetes edge networking, and digital sovereignty.

My background is heavy-industrial full-stack engineering: Java, Spring, Linux, backend services, deployment systems, and production operations. Over the years, that work pulled me closer to cloud-native orchestration, HA architecture, and the parts of infrastructure that usually only get attention after something breaks.

Right now I spend most of my time on Kubernetes, the CNCF stack, AWS infrastructure, Cloudflare security layers, and AI-assisted engineering workflows with Codex and Claude Code.


Tactical Stack

  • Infrastructure & Orchestration: Kubernetes, Docker, containerd, Helm, Ansible
  • Cloud & Edge: AWS infrastructure, Cloudflare Zero Trust, WAF, VPC peering
  • AI-Augmented Engineering: Codex, Claude Code, MCP, SKILL-based workflows
  • Data & Backend: MySQL HA, Redis, Kafka, Java and Python services
  • CI/CD & DevOps: Jenkins pipelines, deployment automation, release operations

Support the Ledger

I write technical notes from real system work: build logs, failure analysis, infrastructure decisions, and post-mortems. No ads. No tracking.

If the notes here saved you time or helped you debug something ugly, you can support the site through the cold wallets below:

[BTC]  bc1qfx2jz3zzc0satu3gzcwqh58jv8ckyhlex6tzc4
[ETH]  0xe3694007b87cb7d149a8a670f622106d9de885dc

Secure Comms

Note: For professional inquiries, offshore infrastructure consulting, or corrections, contact me at [email protected].