Senior Software Engineer in Japan

Hi, I'm Enrico!

With over 10 years of experience, I build and modernize business-critical applications. I improve legacy systems and deliver reliable, maintainable features that solve practical operational problems.

I take technical ownership from design and implementation through testing, deployment, and ongoing improvement.

Ruby on Rails · Java/Spring · PostgreSQL · AWS Chiba, Japan

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Projects

Featured Projects

Selected projects, product experiments, and software I have shaped over the years.

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Envotax

2025

A Rails-based finance and invoicing app for freelance work

A public Rails app for freelance time, expenses, invoices, and payments

Ruby JavaScript SQL CSS Ruby on Rails

KotobaTrace

2026

In development · AI-assisted Japanese vocabulary and grammar review

Analyzes Japanese text and builds a reviewable model of vocabulary and grammar awareness

Ruby Ruby on Rails PostgreSQL Hotwire MeCab

EnChan.org

2025

A personal portfolio built with Rails

A personal home for software projects, writing, and life beyond work

Ruby JavaScript SQL CSS Ruby on Rails

Hinode-Yoga Circle

Single-page website for the Hinode-Yoga-Circle

Website for my beloved Yoga-Circle

HTML JavaScript CSS Gulp Npm

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Blog

Latest Writing

Notes on software, delivery, training, and the work of building things with care.

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April 05, 2026

Ayabe 50K Race Report: My First Trail DNF and What It Taught Me

I came to Ayabe dreaming of my first real over-distance trail race. The challenge was huge: mountains, climbing, descents, and a course far outside my comfort zone. What I got was a beautiful, painful, unforgettable day on the trails—and a hard lesson about health, pride, and knowing when to stop.

7min

Ayabe Trail-Run Ultramarathon

October 06, 2024

99T Kujukuri Triathlon 2024 Race Report: Chasing Sub-5

A rainy, windy race day, a week disrupted by COVID, and a painful battle through the bike and run—yet still a personal breakthrough. Here is my race report from the 2024 Kujukuri Triathlon (99T), where I finished 16th overall and 3rd in my age group.

6 min

Middle-Distance Triathlon 99T

June 23, 2024

Suwako 8 Peaks Triathlon 2024 Race Report: Rain, Risk, and Relief

A stormy race day, a shortened course, two dropped bottles, and a near crash on the descent—this year’s Suwako 8 Peaks Triathlon was anything but smooth. Still, after a difficult week of illness and uncertainty, I came away with a race I can be proud of.

5 min

Middle-Distance Suwako Triathlon

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