Former system engineer and programmer. I’ve been at it for about 25 years. C/C++ was my main job (in the past I was regarded as an expert in the C language and UNIX), so I’ve never seriously studied MQL; I code mostly by imitation and guesswork. However, I believe the MT4 indicators sold here are of professional-quality. Around 2013 I once built an EA, but at that time I had just started FX and couldn’t construct a good profit-taking logic, so I abandoned it halfway. Later, in 2017, I finally managed to create an EA whose profit factor exceeded 1. There was a period when I was obsessed with obtaining qualifications: Administrative Scrivener, Social Insurance Labor Consultant, Japan Chamber of Commerce and Industry Bookkeeping Level 3, Information Processing Technologist (Project Manager, System Architect, Information Security Specialist), and TOEIC 650, among others. Directly they have not been of much use, but as someone from a science background, they broadened my knowledge. As a hobby, I used to play the flute and recorder, and also tried the violin, but I’ve been a little detached from it lately.