Most of my clients are small and mid-sized businesses that need the website and the internal tool to talk to each other. I build both.
Before that, I worked with financial data and internal software at EY. These days I build and maintain projects through Kurogrid.
I also self-host my own stuff, which is where I learned VMs, containers, DNS, backups, and the migrations that go wrong at 2am.
My family is in Japan. During the pandemic I paused university and spent 2021 and 2022 working at auto parts plants in Aichi. That’s the factory chapter further down.
Pontificia Universidad Católica del Perú
Computer Engineering
Based in Lima, permanent resident of Japan. I split my time between the two.
Python·SQL·Java·TypeScript/JavaScript
Agentic Coding (Claude Code, Cursor, Codex)·MCP
Next.js·React·Vite·Node.js·REST APIs·Spring Boot·Microservices
PostgreSQL·Supabase·Row Level Security·Firebase·SQL Migrations
Azure·GCP·Microsoft Fabric·BigQuery·Databricks·ETL Pipelines
Git·Docker·Airflow·dbt·Playwright·Sentry·Power BI·Vercel
Built for businesses here in Peru, and still running.
01Compliance · Kurogrid Portal
Peru requires consumer-facing businesses to keep a complaints book. Mine takes complaints from a public form and tracks each one to an answer before its legal deadline, with every client’s records isolated by row-level security.
02Inventory system · Mining contractor
Replaced paper vouchers and a shared Excel. Stock movements and costs are calculated together in the database so balances stay consistent, and data entry is built for speed: dense tables, shortcuts, Excel in and out.
03Storefront · Canvas prints
Customers browse the catalog, compare sizes and prices, and put together a quote. The order closes on WhatsApp, which is how the shop already sold.
04Internal tools · Admin SPA
Eight admin pages, eight logins, eight flavors of CSS. My client vibe-coded them, which honestly got the business running, but nothing matched and every page was its own slow HTML load. I pulled them into one SPA with role-based routes that ships independently of the store.
05Corporate site · Mining contractor
The contractor’s services, projects and contact in one public site. It deploys separately from the ERP, and all text and images live in a single content file.
06Corporate landing · Mining contractorIn progress
Lays out the contractor’s services and capabilities so buyers can check what they do and get in touch.
Personal · GCP
My own Linux VMs on GCP, mostly to learn how things break before it happens on a client’s server.
Compute Engine · Docker · Cloud Storage
Reads order data from Azure Data Lake and transforms it with Dataflow Gen2, reproducing processes the client ran in Alteryx.
Azure Data Lake · Fabric Dataflow Gen2 · SQL
Moved existing data flows into PySpark notebooks scheduled with Databricks Jobs. Design, testing and rollout.
Databricks · PySpark · Databricks Jobs
Team-built Spring Boot service for users, roles and permissions. I owned role management and checked what each role could reach.
Java · Spring Boot · Azure App Service · Docker
San Isidro, Peru
2024 — 2025
Remote
2026 — Present
Live
Not engineering, just a 2-year side quest surviving automotive assembly lines in Japan to pay the bills.
Nishio Die-Casting Plant
Aichi, Japan
2021 — 2022
Boshoku Seiko Corporation
Aichi, Japan
2021
