Pendar OS: Modular Monolith ERP & Operational Ledger
Replacing a legacy admin-template workflow with a domain-driven Go + SvelteKit ERP built around strict margin tracking and a Cobalt operational ledger.
Pendar Cahaya Nusantara (PCN) manages complex tender-based sales, procurement, fulfillment, billing, trip budgets, workforce scheduling, and general affairs. Their legacy admin-template system had no domain boundaries and zero real-time margin tracking across multi-stage tender execution.
We architected Pendar OS as a single deployable Go modular monolith (Fiber v3, pgx, sqlc, PostgreSQL) with strict package-per-bounded-context isolation and saga-driven process flows. On the frontend, we designed a high-density Cobalt operational ledger in SvelteKit and Tailwind v4 pairing Familjen Grotesk, IBM Plex Sans, and tabular JetBrains Mono figures.
Unified tender sales, procurement, fulfillment, and billing under an authoritative domain model with end-to-end margin visibility and a keyboard-first operational interface.