日本語でも対応可能です。

Daijiro is a self-motivated sharp problem solving professional bringing more than 10 years in consultant, agile coach, UX design, software design, development, and integration. By sponsoring, he can continue making more impacts in OSS that you use and help you to solve your problem from problem finding, problem structuring, potential solution crafting, and their prioritization based on your preference. Ask me if you have any questions on Twitter! @watilde

OSS

Node.js — Core Collaborator
Working in whatwg-url and querystring mostly.

CoderDojo — Mentor
Helps kids to learn programming in Scratch. Contributing to Scratch sometimes.

NodeSchool — Mentor
Helps people to learn programming in JavaScript

npm - contributor
Implemented npm doctor and put 50+ commits.

JSConfJP — Co-organizer
Holding the biggest JavaScript conference in Japan

EXPERIENCE

McKinsey & Company, Tokyo — Digital Specialist
APRIL 2018 - AUGUST 2020
Led various projects in telecommunication , mining, agriculture and finance industries as a hybrid consultant who does strategy consulting as a management consultant and software engineering as a tech lead at the same time.

Makefile, Amsterdam — CEO
AUGUST 2017 - APRIL 2018
Built solutions from problem finding, problem solving and implementation in Blockchain, Translation system and Game library together with clients.

Coolgames, Amsterdam — Software Architect
OCTOBER 2015 - AUGUST 2017
Communicated with leadership in SDK and platform development, improved game revenues by 66%, user's exit rate for 11% and doubled release frequency.

GREE, Tokyo — Senior Technical Artist/Software Engineer
APRIL 2013 - OCTOBER 2015
Made significant impacts in top page as Software Engineer, led full renewal platform and new business as Senior Technical Artist from UX design to implementation

Freelancer, Tokyo — Digital consultant/Software Engineer
AUGUST 2009 - MARCH 2013
For multiple clients such as ATD, BBT and etc, I designed marketing strategy, work plans and built solutions by software engineering.

CERTIFICATIONS

OpenJS Node.js Services Developer (JSNSD) by Linux Foundation
2020 February

OpenJS Node.js Application Developer (JSNAD) by Linux Foundation
2020 January

Professional Scrum Master I (PSM I) by Scrum.org
2018 August

Mobile Web Specialist by Google
2018 August/

AWARDS

Global Nominee
International Space Apps Challenge by NASA - 2019 November

Best performer of month
GREE, Inc. - 2015 April

Highest award
Service Worker Hackathon by Google - 2015 April

JAXA award
International Space Apps Challenge by NASA - 2014 April

Runner-up award
The 2nd HTML5 Practical Contest by KAYAC, Inc. - 2013 March

INTERVIEWS

Testing My Knowledge with OpenJS Certification, an interview with Daijiro Wachi by OpenJS Foundation
https://openjsf.org/blog/2020/04/30/testing-my-knowledge-with-openjs-certification-an-interview-with-daijiro-wachi/

Speaker Interview: Daijiro Wachi — Node.js core contributor by AmsterdamJS
https://medium.com/@amsterdamjs/speaker-interview-daijiro-wachi-lead-javascript-developer-at-coolgames-com-d857bf1b93cc

PUBLICATIONS

Service Worker Development Cookbook
As a reviewer. Packt Publishing Ltd - 2016 September

JavaScriptエンジニア養成読本
As a co-author. Gijutsu-Hyohron Co., Ltd. - 2014 October