JOHNATHAN L. / SITE RELIABILITY ENGINEER

Reliable systems.
Built with intent.

I build, secure, and operate infrastructure. From cloud platforms to blockchain networks, I turn complex systems into dependable foundations.

Toronto, CanadaCurrently at Pinax Network
Conceptual engineering landscape connecting cloud servers, AI agents, blockchain ledgers, and security systems.
CLOUD. AUTOMATION. BLOCKCHAIN. SECURITY.Conceptual illustration
Cloud. Automation. Blockchain. Security.
Connected through hands-on engineering.
EXPERIENCE ACROSS
Pinax NetworkCrypto.comASTRIHong Kong Telecom

FOUR DOMAINS / ONE ENGINEERING PRACTICE

Depth where it matters.

Explore each discipline through the systems I work on, the decisions behind them, and the professional experience that shaped my approach.

HOW I WORK

Understand the system.
Make it better.

My work sits at the intersection of reliability, automation, and security. I bring production operations and security analysis into the same conversation.

Explore my professional experience
01

Build with a clear purpose.

Start with the workload, its constraints, and the people who depend on it. Choose the infrastructure that fits.

02

Make the system observable.

Use monitoring, clear runbooks, and incident investigation to understand how systems behave in practice.

03

Automate with boundaries.

Apply code, deployment workflows, and AI tools thoughtfully, with security and operational control in view.

THE LOCAL SIDE OF THE CLOUD

A lab to build.
A place to learn.

Local compute and storage complement cloud services. This is where I explore model serving, infrastructure tooling, and recovery workflows.

Illustrative hardware composition · model types in my local environment
Illustrative hardware composition · model types in my local environment
01 / AI compute

HP ZGX Nano G1n

02 / Local workstation

Mac Studio M4 Max

03 / Storage & backup

Synology DS1618+

Explore the infrastructure behind the lab
THE FOUNDATION

BSc (Hons) Information Security · The Hong Kong Polytechnic University · 2019