Engineering Case Studies

Real systems. Proven outcomes.

We focus on outcome-driven software engineering. Explore our detailed case studies showcasing how we design scalable web applications, optimize database query paths, and build high-speed systems.

Featured Product Case Studies

Live Product Architecture & Case Breakdown

Web ApplicationFinTech Compliance

Factura DGII — Dominican Republic Tax Invoice Generator

Local-first, privacy-focused fiscal invoice generator for DGII NCF & e-NCF compliance

Generation Latency
< 10ms
Data Storage Privacy
100% Local

Factura DGII is a high-speed, privacy-first web application designed for Dominican Republic freelancers, contractors, and small businesses to issue compliant NCF fiscal tax invoices with automated ITBIS calculations and instant PDF rendering.

🔒 https://factura.proxypattern.com
Generador de Comprobantes Fiscales

FACTURA DE CRÉDITO FISCAL (NCF B01)

Válido DGII
Secuencia NCF
B0100000142
RNC / Cédula Cliente
131-89472-1
Servicios de Consultoría de Software ArchitectureRD$ 85,000.00
ITBIS Calculado (18%)+ RD$ 15,300.00
Total FacturaRD$ 100,300.00
📄 Exportar PDF Vectorial Instantáneo
🔒 100% Local Storage
SaaS PlatformFinTech & Credit Operations

PrestaCRM — Loan & Credit Portfolio Management Platform

Specialized operating system for credit entities, lenders, and loan portfolio managers

Active Credit Managed
RD$10M+
Delinquency Reduction
18% in 90 days

PrestaCRM is an all-in-one loan management and portfolio operations platform. It centralizes applicant intake, automated AI/rules-based risk scoring, French amortization schedules, an immutable double-entry ledger, and automated WhatsApp collection notifications.

🔒 https://prestacrm.com
Consola de Operaciones de Crédito

Juan Ramón Valenzuela — Préstamo #1042

Cartera Activa
Monto Principal
RD$ 150,000
Tasa / Amortización
18.0% Francés
Notificaciones
WhatsApp Activo
Tabla de Cuotas & Libro Mayor Inmutable
Cuota 1 / 12 — 15 Ene 2026RD$ 13,750 (Cobrado)
Cuota 2 / 12 — 15 Feb 2026RD$ 13,750 (Cobrado)
Cuota 3 / 12 — 15 Mar 2026RD$ 13,750 (Recordatorio Pendiente)
Web ApplicationHealthTech & E-Commerce

Healthy Food Punta Cana — Nutrition & Health Assessment Platform

Digital health intake, meal plan subscription, and school lunch booking portal

Health Transformations
500+
Intake Form Completion
3x Higher

Healthy Food Punta Cana is a modern web application and health evaluation portal for Chef Nutritionist & Dietitian Jennifer Núñez. It features interactive online health assessment forms, custom meal plan subscriptions, and school lunch program bookings.

🔒 https://healthyfoodpuntacana.com
Portal de Nutrición Consciente

HEALTHY FOOD PUNTA CANA

Jennifer Núñez — Dietóloga

Transforma tu vida a través de la alimentación consciente

Formulario de evaluación nutricional personalizada, acompañamiento conductual y planes de almuerzos escolares.

Evaluación de Salud Gratis ➔Almuerzos Escolares
500+
Vidas Transformadas
10+ Años
Experiencia
100%
Personalizado
Digital MediaDigital Media & Publishing

La Antorcha Digital — Independent Digital Newspaper Platform

High-concurrency news publishing platform, daily editorial briefing & RSS aggregator

Uptime Under Load
99.99%
Lighthouse Performance
95+

La Antorcha Digital is an independent digital newspaper and publishing platform delivering news, analysis, and opinion across politics, economics, culture, and sports in Spain and internationally.

🔒 https://antorchadigital.es
Diario Digital Independiente

LA ANTORCHA DIGITAL

Edición España & Global
ECONOMÍA24 de Julio • Redacción Antorcha

El patrimonio medio de los españoles alcanza los 269.000 euros

Noticias, análisis en profundidad y la selección editorial diaria de "El Breviario" procesados mediante una infraestructura ISR de alto rendimiento.

Rendimiento Lighthouse
95+ Score
Estructura SEO
JSON-LD Org
System Architecture

Infrastructure & Database Audits

AI & Scaling

Scaling Conversational AI

Helping a leading conversational customer support startup handle massive chat throughput while reducing operating expenses.

Latency60% Lower
Billing45% Saved

Approach & Architecture

  • Implemented semantic Redis caching to bypass repeated GPT calls.
  • Sidekiq worker queues for offloading non-blocking transcript evaluation.
  • Optimized SSE streaming connection overhead by 200ms per session.
Infrastructure

Predictive Autoscaling

Designing a custom queue-based autoscaler to handle unpredictable task workloads and minimize cloud server idle time.

Monthly Cost45% Saved
Notification Delays0 ms

Approach & Architecture

  • Engineered custom queue-depth velocity daemon in Ruby polling Redis/Sidekiq.
  • ECS capacity scaling based on predicted arrival rates instead of CPU spikes.
  • Slimmed Docker container boot times from 90s to 14s.

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