SIMON.OS / CASE STUDIES

Delivered systems

Selected projects. Focus on system design, technical approach and measurable results — not presentation.

Portfolio

Case studies

01 E-COMMERCE / AUTOMATION

WooCommerce product import pipeline

Automated pipeline for importing 12,000+ products from supplier API to WooCommerce. Pricing logic, inventory sync and retry queue.

PHPWooCommerceREST APICronMySQL
↓ 94% Manual work
12k Products synced
99.2% Sync success
02 LOGISTICS / INTEGRATION

Logistics platform with real-time tracking

Backend for order routing and delivery tracking. Three carriers via REST with fallback and operator dashboard.

Node.jsPostgreSQLWebSocketDockerReact
↓ 38% Response time
3 carriers Integrated
99.8% Uptime
03 INTERNAL PLATFORM / SAAS

Operations dashboard for consultancy

Full-stack admin system for time tracking, invoicing and client management. Role-based access and VAT compliance.

PHPMariaDBTailwindAlpine.js
↓ 60% Admin overhead
GAP-FREE Invoice nos.
< 1s Load time
04 API / AUTOMATION

Webhook orchestration for payment flows

Centralized webhook hub for Stripe, Klarna and internal accounting. Idempotent event handling with dead-letter queue.

Node.jsRedisStripeKlarnaPostgreSQL
0 Double bookings
< 200ms Webhook latency
100% Replay capacity
05 AI / AUTOMATION

AI-assisted content pipeline

Automation flow for product descriptions with AI generation, approval process and direct publishing to CMS.

PythonOpenAI APINext.jsSanity CMS
↓ 8h/wk Editorial time
1,200+ Descriptions/mo
98% Approval rate
06 DATABASE / MIGRATION

Legacy migration to PostgreSQL

Zero-downtime migration of 7-year-old MySQL to PostgreSQL. Schema refactoring, validation and rollback strategy.

PostgreSQLMySQLPythonpgloader
0s Downtime
4.2M Rows migrated
100% Data integrity

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