Available for select side-work
Hi, I'm Angga. I build secure, scalable systems.
Software engineer working on identity, cryptography, and authentication by day. Shipping a micro-SaaS, an npm package, and this blog by night.
That's me.
I care about systems that are secure by design and simple to use. When I'm not building authentication at VIA, I'm shipping side projects, an npm package, and writing about what I learn here.
More about me →Currently working on
Micro-SaaS
Turning password-obscura into a hosted secret-redaction API.
Tech blog
One post a week — engineering retros, not generic tutorials.
Open-source
Contributing to Ghost. Aiming for a PR every two weeks.
Mobile app
Subscription-based product, parked until SaaS validates.
Latest posts
View all →- Observability on one EC2 box: the Grafana stackSelf-hosting traces, logs, and metrics on a single EC2 instance with Grafana, Alloy, Tempo, and Loki — how the pieces fit, the push-vs-pull split that trips people up, wiring it for a Go backend, and the caveats nobody mentions.
- Zero-downtime deploys: blue-green and canaryHow blue-green deployments and canary releases actually achieve zero downtime — the traffic mechanics, the database problem nobody mentions, the tooling that runs them, and when not to bother.
- How I audit cloud infrastructureA working playbook for auditing a production cloud stack — twelve layers from network perimeter to CI/CD pipeline, with verification commands, severity ratings tied to remediation SLAs, and the trade-offs senior engineers make in practice.