Nov 2025 – PresentSoftwareFulfillment

StationOn ERP — Fulfillment, HR, and Sales in One System

Instead of buying the systems a fulfillment operation needs, we built them — outbound and inventory, attendance, payroll and contracts, and marketplace operations all run on one system.

Ruby on RailsVue 3TypeScriptPostgreSQLSidekiqTailwind CSSCapacitorPlaywrightESP32

Background

Running a fulfillment center, we needed a lot of tools — and nothing off the shelf matched how we actually worked.
Operating the floor ourselves, we moved each gap into software one at a time, until fulfillment, HR, finance, and sales
all ran on one system. The company runs on it today.

What it does

Fulfillment

The full flow: cutting prep → machine dispatch → packing → boxing → rack storage → outbound and inbound → returns
Barcode/QR labels for boxes and packages, with turnover and coverage statistics
Integration with our own ESP32 fabric-cutting machines — job dispatch, heartbeat-based offline detection, over-the-air firmware updates
Courier booking automation: a browser bot issues waybills and returns tracking numbers and PDFs

HR & finance

Attendance verified by GPS geofence and IP allowlist, with automatic clock-out
Payroll generation and payslip PDFs, severance calculated from ordinary and average wage, wage ledger
Leave requests, approvals, balances, and monthly automatic accrual
E-signature contracts (templates, provider sync, archiving to Google Drive), cash-flow and loan repayment tracking

Sales & catalog

Marketplace operations — listings, inventory, orders, returns, settlements, inquiries, and 3PL inbound/outbound
A product detail page generator and AI image generation across several providers
A separate public SPA for customers to search fabric, running on the same backend

How it was built

Ruby on Rails 8 API + Vue 3 SPA on PostgreSQL, with Sidekiq for background work
Multi-tenant, with tenant context carried per request
N+1 queries are blocked by default; every endpoint declares the preloads it needs
Role-based permissions, plus a second authentication step for sensitive screens
The admin app is wrapped with Capacitor for mobile use
Security scanning, static analysis, tests, and type checks all gate deployment in CI

Scale

~274,000 lines of code, 159 tables, 302 migrations
107 admin screens and 237 service objects
434 logged releases
In development and production since November 2025