Woot.ro — Courier & Shipping Automation Platform (Full-Stack / Product-minded Engineer)
Built and scaled core systems for a shipping automation platform: multi-courier API integrations (rates, AWBs, labels, tracking), a pricing and surcharge reconciliation engine, annex imports at scale, and subscription/payment flows.
Woot.ro is a logistics SaaS platform that automates the full shipping lifecycle for e-commerce and business clients—from pricing and service selection to AWB generation, label printing, cancellations, and tracking—across multiple couriers.
My work focused on building reliable backend systems and integration-heavy workflows that stay correct under real production constraints: inconsistent courier APIs, complex surcharge structures, large order volumes, and strict accounting needs.
Key areas delivered and improved:
Multi-courier API integrations (end-to-end)
Implemented/extended courier flows for quoting, shipment creation (AWB), label printing, cancellation, and tracking.
Built abstractions/factories/interfaces so couriers can plug into a consistent internal workflow rather than bespoke logic per provider.
Pricing engine + surcharge reconciliation
Designed pricing breakdown logic to compare database-configured prices with courier API responses, including commissions and optional services.
Introduced mapping and auditing for surcharges/options so totals match expected billing behavior, not just “a base price”.
Annex import + reconciliation at scale
Built a courier annex ingestion pipeline that detects file formats by headers, parses rows, maps orders across old/new databases, and imports in controlled batches.
Optimized slow parts of the process for large datasets (orders >100K, totals multiple times larger), reducing runtime and avoiding duplication errors.
Data consistency & automation
Payments & subscriptions
Integrated subscription/payment flows (Stripe and wallet-based payments such as Apple Pay / Google Pay), aligning platform billing with product access and automation rules.
Operational reliability
Instrumented and debugged production issues using Sentry and structured logging, with a focus on making failures diagnosable (integration errors, mismatched totals, edge cases in external APIs).
This project demonstrates building production systems where the hard part isn’t UI—it’s correctness, scale, and integration reliability.