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31 followers · 78 following
  • Colombia

Achievements

Achievement: Pull Sharkx3Achievement: Pair Extraordinairex3Achievement: YOLOAchievement: Quickdraw

Achievements

Achievement: Pull Sharkx3Achievement: Pair Extraordinairex3Achievement: YOLOAchievement: Quickdraw

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rookiecol/README.md

Backend engineer - production AI agents and cross-chain infrastructure

I started in Industrial Engineering and fell for code along the way. Today I'm a backend engineer who builds production AI agents and cross-chain infrastructure with the same bar: no PoCs - everything shipped with guardrails, instrumentation, and users who depend on it.

I'm building Crux, my own SaaS for climbing gyms - in production with 2,000+ registered users, ~4,000 bookings and 2,200+ check-ins processed, plus electronic invoicing (DIAN/Aliaddo) with 1,000+ invoices issued. It includes a multimodal expense agent that turns receipt photos, voice notes, and free-text into structured records over WhatsApp/Telegram, and a text-to-SQL assistant for self-serve analytics.

Most recently I was a Technical Solutions Engineer at deBridge, where I designed a multi-agent system (Reporter/Investigator) that automates incident triage - living where cross-chain infrastructure meets reality: failed transactions, production incidents, partner integrations.

My backend runs on NestJS and event-driven architectures; on the Web3 side I mostly work with vaults, stablecoins, and RWA tokenization.

Tech Stack

AI & Agents

Vercel AI SDK MCP Langfuse

Backend & Data

NestJS TypeScript PostgreSQL MongoDB RabbitMQ

Web3

Solidity Viem deBridge

Frontend

Next.js React Tailwind

Ops

Docker OpenTelemetry AWS

Currently Building

  • Crux - gym management platform: multimodal expense agent (photo/voice/text) + text-to-SQL assistant, instrumented with Langfuse and OpenTelemetry (tracing and per-call cost). Next.js, Supabase, Vercel AI SDK.
  • harvestledger - personal lab taking a NestJS microservices backend from distributed monolith to stable, observable, and Kubernetes-run (see the roadmap).

Hackathons

  • GreenGate - Web3 Hackathon Colombia 2023 - 1st overall + 3 tracks (Arbitrum, CeLatam DAO, Refi Medellin)
  • Unknown Finance - ETHGlobal Circuit Breaker 2024 - Scroll "Best ZK Usage" Runner-Up
  • NFlightT - Solana HACK SERIES Bogota 2024 - 3rd place

Thanks for stopping by - feel free to connect or reach out

Pinned Loading

  1. debridge-mcp debridge-mcp Public

    Model Context Protocol (MCP) server providing cross-chain swap quotes via the deBridge DLN protocol

    TypeScript 1

  2. dorg dorg Public

    Realtime ERC-4626 vault monitoring & indexing · NestJS listener + The Graph subgraph on Optimism

    TypeScript

  3. xERC20 xERC20 Public

    Cross-chain OFT token transfers between Rootstock and Ethereum Sepolia via LayerZero OFT V2

    Solidity 1

  4. TG-marketplace TG-marketplace Public

    Telegram Mini App storefront with USDT-on-TON payments and a Next.js admin dashboard

    TypeScript

  5. caudal caudal Public

    Ask, don't guess. Chat-first finance OS for my SaaS — FastAPI, MCP, and a deterministic projections engine on Postgres.

    Python

  6. harvestledger harvestledger Public

    NestJS microservices backend for agricultural traceability — a personal lab for distributed backend architecture: service boundaries, correctness under failure, observability, and scale.

    TypeScript