Senior backend & full-stack engineer. I ship end-to-end: API integrations, event-driven pipelines, and the data layer that sits underneath analytics products. I work close to the problem — translating messy requirements into systems that run in production.

TypeScript · Node.js / NestJS · React · PostgreSQL · MongoDB · BullMQ · BigQuery · AWS

• Third-party API integrations at scale — Google Ads, Meta, Microsoft/Bing (SOAP), LinkedIn. Reconciling spend across timezones, rate limits, and inconsistent schemas into one normalized model.
• Event-driven systems — webhook ingestion (Stripe, ThriveCart, Calendly, HubSpot, MailerLite) normalized into a single envelope, routed through queues, with identity resolution and revenue attribution downstream.
• Data pipelines & reporting — BigQuery + a GraphQL shared-metrics layer feeding cross-platform campaign reporting.
• AI-assisted delivery — agentic workflows and harness engineering to move faster on well-scoped work without losing review discipline.

I build multi-tenant systems solo when needed and I'm comfortable owning a feature from client conversation to deployment.

• hit-landing — Fast static site (Astro islands) built for real 3G/LTE users in Nicaragua; only the interactive slices ship JS.
• hit-ever — Edge tracking API (Cloudflare Workers + Hono) for a real logistics business; multi-provider ingestion into a normalized store, with an in-memory demo mode.
• hit-panel — Backendless internal dashboard; security enforced by Postgres RLS + SECURITY DEFINER, not client code.
• webhook-attribution-pipeline — Normalized multi-source webhook ingestion → BullMQ → identity resolution → revenue attribution (NestJS).
• agent-harness — Portable, model-agnostic dev harness over opencode: deterministic gates, a bounded autonomous loop, and role-based subagents.

• LinkedIn
• carlosrenatohr@gmail.com
• Based in Nicaragua 🇳🇮 · working remote · EN / ES