Full-stack engineer, backend-leaning · TypeScript · React · Node.js (Express, NestJS) · AWS · PostgreSQL Colombia (UTC-5) · in production systems since 2024 · open to remote
I build web products end to end: the screens people touch and the systems underneath.
curl "https://mdingest.knightker.workers.dev/v1/devto?url=<any dev.to article>"---
title: "We All Have a \"Serious Work\" AI and a \"Just Vibing\" AI. When Did That Happen?"
author: "Dhruv Jani"
date: "2026-09-22"
reading_time: "4 min read"
provider: "devto"
tags: ["discuss", "ai", "gemini", "antigravity"]
---real response, truncated. That's a live API I built and run. It ingests articles and returns clean Markdown for LLM workflows.
| what it does | status | |
|---|---|---|
| mdingest | articles to clean Markdown for LLMs. Cloudflare Workers, four interfaces on one core (REST, CLI, web, MCP). |  |
| italki-cli | italki from the terminal: lessons, teachers, scheduling. Ships as a CLI and an MCP server. |  |
┌──────────────┬──────────────┬──────────────┬──────────────┐
│ ~150ms │ 1,103 │ <12mo │ 12h │
│ hot │ Colombian │ junior to │ AWS prod │
│ endpoint, │ towns live │ SWE promo │ migration, │
│ was ~8s │ on platform │ │ zero loss │
└──────────────┴──────────────┴──────────────┴──────────────┘
Every number above is on the CV. Happy to walk through any of them in an interview.
- TXEN / We4Labs · software engineer, dec 2025 – present. Core engineer on a B2B tax compliance platform covering all 1,103 Colombian municipalities. Took a hot endpoint from ~8s to ~150ms, built a 19-phase ETL over 118k+ legacy records, migrated staging + prod to AWS in 12h with zero data loss.
- Nord Tech · junior to software engineer in under a year. Real-time reservation platform (Scala, Kafka, WebSockets); migrated a 100+ endpoint fintech codebase off a legacy ORM.
- working: software engineer at TXEN (B2B tax-compliance SaaS, serverless AWS)
- studying: system design + DSA, interview prep across 10 platforms
- open to: full-stack engineer roles · remote · US time zones
auto-updated daily by CI
mdingest api: v1 · live · last public push: LOsioChico · pulse 2026-10-06
NestJS for structure: DI, modules, clean boundaries. Functional style where it pays. I build AI-assisted and verify the boring way: types, tests, receipts. This README updates itself via CI. Proof is in the Actions tab.
luisosio.dev · [email protected] · linkedin · es native, en B2