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Case Studies

Results that survive production

Real projects at real scale: less manual work, more throughput, and operations that stop quietly losing money.

Healthcare & HealthTech Clínica Sanar Saúde

Clinical billing without surprise denials

Challenge

The operation was losing revenue to recurring claim denials and spent days closing billing manually across four different systems.

Solution

We built an automatic auditing engine that validates claims against each payer's rules before submission, with HL7/FHIR integration to the health record and payment reconciliation. Asynchronous queues process batches in the background and flag exceptions for human review.

HL7/FHIR Automation Data privacy

Results

  • -41% in billing close time
  • -63% in denials from claim inconsistencies
  • R$2.4M/year in recovered revenue
Fintech & Payments Pagô Pagamentos

Resilient payment orchestration

Challenge

With a single provider, any PSP instability dropped conversion and produced duplicate charges that were hard to reconcile.

Solution

We implemented an orchestration layer with smart routing across multiple PSPs and automatic fallback on failure. End-to-end idempotency eliminated duplicates, and a real-time reconciliation pipeline now continuously matches transactions, payouts, and fees.

Payments Fraud prevention High availability

Results

  • +5.8 pp in approval rate
  • 99.98% checkout availability
  • -92% in duplicate transactions
Retail & Marketplaces FeiraViva Marketplace

A marketplace ready for Black Friday

Challenge

The catalog grew faster than the platform could handle, and inventory mismatches across channels caused cancellations and reputation damage.

Solution

We rebuilt the marketplace core with distributed search for millions of SKUs, per-seller payment split, and near-real-time inventory sync across ERP, hub, and channels. Strategic caching and an event-driven architecture sustained seasonal peaks without degradation.

Marketplace Payment split Event-driven

Results

  • +3.2x Black Friday orders with zero downtime
  • -78% in cancellations from stockouts
  • 120 ms average search latency
Logistics & Supply Chain RotaCerta Logística

Control tower and dynamic routing

Challenge

Deliveries were planned in spreadsheets with no real-time visibility, and delays only surfaced once the customer was already complaining.

Solution

We delivered a control tower with real-time tracking and dynamic routing that accounts for delivery windows, fleet capacity, and traffic. Proactive SLA alerts and automated transport tax documentation eliminated operational rework.

Routing Tracking Tax automation

Results

  • -31% in cost per delivery
  • +22% on-time deliveries (OTIF)
  • -47% in route planning time

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