Building production systems at scale. Backend-leaning.
Shipping TAPinto.net (~2M visits/mo) — US news platform, remote from Ecuador.
I own features end-to-end: Rails API schema and service layer through React/Next.js components and CI/CD on AWS. Strict API contracts, custom hooks, scalable component patterns — no handovers, no blockers.
Testing isn't optional. RSpec + Jest at the unit layer, Playwright at the integration layer — every feature ships with the coverage to back it. Refactoring stays cheap; production stays calm.
Migrated a legacy ERP to Clean Architecture in under 2 weeks — Rails API + React, zero data loss, ~60% less tech debt. AI-assisted workflow (Claude Code, Cursor) compresses ramp time, never replaces engineering judgment.
Event-driven market analytics platform: TypeScript / NestJS + a Go microservice + pgvector + TimescaleDB. Concurrent market-data ingestion (Go goroutines and channels), RAG over trading notes, and agentic weekly reports.
Full-stack contributor on a high-traffic US digital news platform. Engineered complex CMS modules across 12+ content types, tuned background jobs, optimized cache layers and performance hotspots, and integrated dynamic ad-serving and payment gateways.
Architected the migration of a legacy monolithic Export Management ERP to a modern Clean Architecture (Rails API + React) in a record two-week window. Designed the PostgreSQL migration strategy to guarantee zero data loss.
Event-driven document management system handling thousands of academic documents. Implemented async processing with BullMQ queues, moving report generation off the request path and collapsing generation latency.
View case study →
AI voice agent for personal finance, built on our Fopymes hackathon prototype: Whisper STT + GPT intent routing over a multi-agent backend let users log transactions, goals, and budgets by voice.
Secure document platform with Microsoft OAuth SSO, SQL Server Dynamic Data Masking, a redacting logging interceptor, and a custom encryption + compression layer for point-to-point payloads.
Cemetery management system modeling niche (burial-plot) lifecycle — inventory, ownership and inheritance, payments, and burial procedures. Delivered as Tech Lead.
Computer-vision prototype for downhill MTB rider detection and attribute classification: YOLOv11 detection feeding an EfficientNet-B2 multi-label classifier. Prototype; project paused.
Role-scoped restaurant platform with a WebSocket layer keeping order state consistent across waitstaff, kitchen, and cashier on every device on the floor.
| Sym | Project | What | Signal | Stack | Year |
|---|---|---|---|---|---|
| LKPY | LookPay | Facial-recognition payment simulation with sub-2s face match, exploring password-less biometric auth flows. | <2s auth | Next.js · Spring Boot · AWS Rekognition | 2022 |
| SRIP | SRI-Compliant POS | Point-of-sale for Ecuadorian retailers with inventory management and SRI-validated electronic invoicing. | 100% SRI valid | Spring Boot · Next.js · PostgreSQL | 2023 |
| UTAW | UTA Web App | Astro + React institutional landing redesign for the Technical University of Ambato. Deployed on Vercel. | Lighthouse 95+ | Astro · React · Tailwind | 2023 |
| AMBV | Ambivalence | Two-app e-commerce platform (storefront + admin) for a clothing brand. Next.js + Prisma + Clerk. | <1.5s LCP | Next.js · Prisma · Clerk | 2023 |
Looking for a Full Stack Engineer who owns features end-to-end and builds scalable backend services? Let's talk.
