Hi, I'm Tommy.トミー・アンドレ・スレットボルド
IT security student and support specialist from Norway. I build apps for learning Japanese, and I'm working toward a career in IT support and security in Japan.
- Network & IT Security, Noroff (2027)
- Fraud prevention & IT support
- Japanese: JLPT N5, studying for N4
- Japanese name: 平原 智明 (Hirahara Tomoaki)
- Open to relocating to Japan

Apps I've madeアプリ
Oni Dojo
A Japanese course from kana to JLPT N1, taught by Kurenai, a mischievous oni sensei. 140 lessons, 15,000+ voice clips.
See Oni Dojo →Rireki Studio
Make a correct Japanese CV (履歴書 and 職務経歴書) in English or Japanese, with a guide and a mistake checker.
Open Rireki Studio →Tokoyami Oni Radio
Japanese internet radio from all over Japan in one player, with programme guides, translated titles and an alarm clock.
Read more →Onibi
Fuel prices near you, compared live on a dark map, with directions to the cheapest station.
Read more →On this siteこのサイト
Road to Japan
Why Japan, how I study, and where I'm heading next.
Read →Work
Support, fraud prevention and security research. What I can do for a team.
See my experience →Projects
Oni Dojo, Rireki Studio, Tokoyami Oni Radio and how they are built.
See projects →School
Network & IT Security at Noroff: exam projects, Azure labs, security.
Studies →Hobbies
Games, OSINT puzzles, Japanese culture and building things.
More →Notes
Short updates from the road: apps, studies, Japan.
Latest notes →Latest最新
Rireki Studio: Japanese CVs, made simple
A free 履歴書 and 職務経歴書 maker for foreign applicants, with a guide and a mistake checker. Nothing leaves your browser.
Oni Dojo is out on Google Play
My Japanese course app passed Google's review: start free, and go all the way to N1 with Premium.
SPF, DKIM and DMARC for small businesses
How to stop criminals from sending email in your company's name, step by step.
Oni Dojo is with Google for review
Version 3.8.0 is submitted, with purchases checked on the server and no tracking anywhere.