Building production systems at scale, front to back.
Shipping TAPinto.net (~2M visits/mo), a US news platform, remote from Ecuador. Building AI agents that run in production.
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.
US news platform serving ~2M monthly visits. I ship features across 12+ CMS content types on a Rails + React estate (PostgreSQL + MongoDB), release behind feature flags, and integrate third-party payment gateway and ad-serving APIs. Rewrote Redis caching on hot endpoints, added New Relic APM, and designed the reusable Playwright E2E architecture.
Proposed and drove the migration of a legacy Export Management ERP to Clean Architecture (Rails API + React) in under two weeks, with a PostgreSQL migration strategy that lost no data. Built the core KPI module and wrote the Playwright E2E suite that guards it.
Document platform that replaced the faculty's legacy generator and runs in university production. Led the 4-person Scrum team; integrated the Google Drive and Docs APIs across thousands of academic records and moved generation into a Bull + Redis worker pipeline with Socket.io notifications, cutting processing time 70%.
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Voice-first personal finance agent: Whisper transcribes Spanish voice notes and LLM intent routing dispatches them to specialised agents that log transactions, goals and budgets. I owned reminders and reporting: deterministic reports kept separate from LLM reports, PII anonymised before anything reaches the model.
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.
