Kenji Ohtsuka

University of the People

Computer Science

2021-01

京都大学

理学部 数学系

主に代数学

2008-03

Gifu High School

2004-03

EYS-STYLE Co.

CTO

Developing web server with Kotlin.
Developing Smart Contract on Etherum Blockchain with Solidity.

2016-10 -

appArray株式会社

engineer

I used Machine Learning, Speech Recognition, Swift, Kotlin, Ruby on Rails, Golang and Spring. And created server and iphone application.
I used Python and Chainer mainly in Machine Learning, and used HTK in Speech Recognition.
Also I'm committed in design with SASS and HTML5, of course javascript.

And held study sessions of Kotlin and Mathematics several times.

As for infrastructure, I managed all of servers used in the company, such as web server, mail server, load balancer, database server and so on.

2015-09 - 2016-09

ぐるなび（Gurunavi Inc.）

I managed the team, which is responsible for building and updating shop page.

I created shop pages with FuelPHP, PHPUnit, python, Selenium, groonga, cassandra and MySQL, and introduced XP development style into the team.

I created Android application and Android wear application.

2014-04 - 2015-08

EYS-STYLE Co.

Created the business system and the social system with Ruby on Rails, PostgreSQL and MySQL.
Ruby on Rails, PostgreSQL, MySQL を使用して 基幹システム及びSNS作成を行った。

Created web server on AWS EC2 with Apache, Nginx, Unicorn and Passenger.
AWS EC2 上 で Apache, Nginx, Unicorn, Passenger を用いてウェブサーバの構築を行った。
Establish LDAP server, Mail server and GitLab server.
LDAP サーバ、 メールサーバ、 GitLab サーバ の構築も行った。

2013-01 - 2014-03

Nisseicom, Limited

Created business systems and the framework which is used in Nisseicom.
基幹システムの構築や、社内で使用するフレームワークの作成を行った。

Technologies I used are Visual Basic .Net, VBA, ASP .NET, Visual C#, JScript, VBScript, Oracle Database, SQLServer and its reporting service, Crystal Report, Microsoft Access and so on. I also used machine specific language that was used in HT-3000W, which is handy terminal made by Keyence.

2009-07 - 2012-11

WILL, Co., Ltd.

Financial Planner
ファイナンシャルプランナー

損害保険、生命保険、少額短期保険募集

2008-04 - 2008-12

English

Professional

Japanese

Native

Other

Conversational

ソムリエアドバイザー

2016-12

Cosminexus Certified Consultant

2015-12

証券外務員2種

2008-3

日商簿記2級

2007-11

宅地建物取引士

2007-8

ファイナンシャル・プランニング技能士2級

2007-4