Commerce & Booking Platforms

Booking and commerce platforms that never oversell, never double-charge, and scale without the reconciliation nightmare.

Typical system shapelive
SETNXchargeClientweb · mobileAPI gatewayauth · rate-limitBooking serviceevent-sourcedInventory holdredis · atomicPaymentidempotency-keyAudit logkafka → immudb
p95 0.8s0 double-bookings1,000+ properties

Commerce and booking systems live or die on correctness under load. We model contended resources such as stock, rooms, and seats explicitly, and make the contended operation atomic so two requests can never oversell the same unit.

Payments are abstracted behind an idempotent gateway so you can add regional providers without touching booking logic, and reconciliation is automated rather than a monthly fire drill.

What we deliver

  • Multi-warehouse inventory
  • Concurrency-safe reservations (no double-bookings)
  • Dynamic pricing engines
  • Payment gateway abstraction (Stripe, PayPal, regional)

How we approach it

Inventory as an event-sourced aggregate

Holds are atomic, auditable, and replayable.

Idempotent payment gateway

Retries and webhooks can never double-charge.

Dynamic pricing as pure functions over inventory + demand signals.

Multi-region providers behind one abstraction

Swap Stripe/PayPal/regional without app changes.

Related disciplines

System Architecture & API Design

Architecture that prevents the rewrites you can't afford: explicit boundaries, event-driven by default, failure modes designed first.

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Operations & Workflow Automation

Operations software that routes work in real time, eliminates manual scheduling, and gives leadership a single source of truth.

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Ready to start?

Tell us what you're building. We'll review scope, architecture, and where AI fits, and reply within one business day.