Platform Engineer · Jakarta · UTC+7

ZCode

I build the paved roads developers ship on.

Staff platform engineer at Arunika Cloud. Eight years turning pet servers into boring, self-service infrastructure — Kubernetes platforms, Terraform estates, and CI pipelines that deploy 38 times a day without waking anyone up.

currently — staff platform engineer @ arunika cloud on-call — rotated weekly, rarely paged
zcode@ops-bastion — zsh

fig. 01 — a normal tuesday on the platform cluster

99.982%
Platform SLO · trailing 90 days
38/day
Peak deploy frequency · up from 4
214
Engineers self-serving · across 23 teams
US$412k
Cloud spend removed · trailing 12 months

How I operate

Four rules I actually enforce.

01

Paved roads over gates

A platform wins when the golden path is the fastest path. I ship self-service templates with guardrails built in — not ticket queues that make engineers route around me.

02

Everything as code

Infrastructure, policy, runbooks, dashboards, even the on-call rotation. If it matters in production, it has a pull request number and a reviewer.

03

Boring tech, exciting uptime

PostgreSQL over the database-of-the-week. Kubernetes where it earns its keep, systemd where it doesn't. Novelty belongs in product code, not in the pager.

04

Cost is a feature

Every architecture review has a dollar line next to the latency number. Rightsizing, spot pools, and storage lifecycle rules shipped like any other feature.

Experience

Where the scars came from.

2023 — now

Staff Platform Engineer

Arunika Cloud — Jakarta

Built Portal, a Backstage-based internal developer platform used by 214 engineers across 23 teams. Golden-path templates took service creation from 11 days of tickets to 38 minutes of self-service.
kubernetes / backstage / argo cd / crossplane
2021 — 2023

Senior DevOps Engineer

Lokanara Logistics — Bandung

Moved 47 services off pet EC2 instances onto EKS with Terraform modules and Atlantis pull-request automation. Introduced Karpenter spot pools and cut compute spend 31.4% without a single latency SLO breach.
terraform / eks / atlantis / karpenter
2019 — 2021

Site Reliability Engineer

Bara Digital — Jakarta

Ran on-call for a wallet app with 6.2M monthly users. Wrote the first SLOs and error budgets, stood up incident command, and took MTTR from 46 minutes to 12 while cutting pager volume by more than half.
prometheus / slo / incident command / grafana
2017 — 2019

Backend Engineer

Sembilan Studio — Yogyakarta

Go services for media clients. First person in the company to write a Dockerfile — which is how I found out the servers were my problem now.
go / postgres / redis / nginx

Stack

The toolbox, honestly weighted.

Orchestration & Runtime

  • Kubernetes EKS · GKE · k3s, since 2019
  • Helm & Kustomize daily drivers
  • Karpenter spot-first node autoscaling
  • Crossplane cloud resources as CRDs

Observability

  • Prometheus + Thanos
  • Grafana / Loki / Tempo
  • OpenTelemetry

GitOps & CI/CD

  • Argo CD + Rollouts
  • GitHub Actions
  • Dagger · Atlantis

IaC & Policy

  • Terraform + Terragrunt
  • OPA / Rego
  • Checkov · Kyverno

Languages

  • Go operators & CLIs
  • Python glue & tooling
  • HCL · Bash the honest ones

Selected work

Things I built and maintain.

01 · Open source

palapa_

An opinionated Backstage distribution with golden-path templates, maturity scorecards, and a plugin registry. Runs the IDP at Arunika; adopted by nine companies I know of and a few I don't.

Go + TypeScript · 1,847 stars

03 · Internal

topeng_

A PII-masking sidecar that turns production dumps into staging-safe fixtures — deterministic tokenization, no SQL surgery, audited transformations.

Go · sidecar container

02 · Open source

sirine_

An alert-correlation engine that squashes roughly 2,400 raw Prometheus alerts a night into the 14 incidents a human can actually hold in their head.

Go · Prometheus webhook · 632 stars

04 · Internal

gudang_

Terraform module registry with drift detection and Atlantis autoplans. 148 modules, semantic versioning, one source of truth for 40 AWS accounts.

Terragrunt · Atlantis · OPA

Contact

Have a platform problem?
Let's talk.

IDP adoption, Kubernetes migrations, Terraform estate cleanup, or an on-call rotation that doesn't burn people out. I answer email faster than I answer pages.

Credentials

CKS — Kubernetes Security SpecialistCNCF · 2024
AWS Solutions Architect — ProfessionalAWS · 2023
CKA — Kubernetes AdministratorCNCF · 2022
Terraform AssociateHashiCorp · 2021