Jun 2025 – Present · 11 mos · Tokyo, Japan · Hybrid

• Developing end-to-end AI/ML and Data demos to showcase cutting-edge technical use cases.
• Actively contributing to Open Source Software (OSS) projects within the data and AI ecosystem.
• Speaking at major industry conferences (both 1st and 3rd party) as a technical thought leader.

May 2024 – Jun 2025 · 1 yr 1 mo

• gTech Ads Sellside, Professional Services, Publishers
• ML/Data Vertical (ML, Data Science, MLOps etc.)

Jan 2024 – Apr 2024 · 3 mos

• gTech, Professional Services, Publishers
• ML/Data Vertical (ML, Data Science, MLOps etc.)
• The role profile was changed due to the internal coding and engineering activities being reviewed: the same team and the same job as prior the Technical solutions consultant.
• The first case in the APAC gPS Publishers organization to become a CSE.
• Python readability.

Jan 2023 – Dec 2024 · 1 yr 11 mos

• 20% rotation in Customer Solutions Engineer, gTech gPS Ads JPKR team.

Dec 2021 – Jun 2025 · 3 yrs 6 mos

• 20% rotation.
• DevRel Advocate atvities
• Gemini 1.5, 2.0 tutor in Tokyo, Sendai, Nagoya, Sapporo and Tokushima
• Google I/O 2024 updates in Nagoya.
• Speaker at DevFest Tokyo 2023, Nagoa 2024, Kochi 2023.
• Career presentations for Google Developer Students Clubs
• Mentor for Google Developer Groups, Google Developer Student Clubs.

Jul 2021 – Jan 2024 · 2 yrs 6 mos

• gTech, Professional Services, Publishers
• ML/data Vertical
• Developing data science solutions for publishers, e.g. recommendation engine, scalable tool for building segments & publishing solutions to GitHub as open source.
• Consultant about data architecture & data engineering

May 2020 – Jul 2021 · 1 yr 2 mos · Tokyo, Japan

Apr 2019 – Apr 2020 · 1 yr

• Data migration project leader & Data Engineer
• Constructed data warehouses over 20TB in size and managed data migration projects from on premises Hadoop and Oracle DB to GCP/AWS for website data which improved work efficiency team wide by increasing speed of analyzing.
• AWS(Aurora for MySQL, Cloud formation, Lambda)
• GCP(BigQuery, Composer(Airflow), Cloud IAM, Compute Engine）
• MySQL, Oracle

Nov 2015 – Mar 2019 · 3 yrs 4 mos

• Data Scientist to Data Science Project Leader & ML/Data Engineer
• Recommender System, Data Analysis for media services
• on-premises(Hadoop)
• Cloud (AWS, GCP) for media services
• Managed an R&D project utilizing deep learning (Neural Network (CNN, RNN)) and IoT (Raspberry Pi) to analyze voice data to improve conversation quality of telephone sales.

Mar 2018 – Mar 2018 · 0 mo · Within 23 wards, Tokyo, Japan

• Teaching high school students programming html, css, JavaScript and jQuery as side-job.

May 2017 – Apr 2020 · 2 yrs 11 mos · Within 23 wards, Tokyo, Japan

• Side-job,
• Developed web application with Ruby on Rails, D3.js, CoffeeScript
• Constructed cloud infra-structure (AWS) with Docker
• Implement automated testing with RSpec

May 2015 – Oct 2015 · 5 mos · Within 23 wards, Tokyo, Japan

• Crawling system for supporting a sales team as side job
• Front end(CSS, Haml, Google App Script)
• Server side(Node.js, Ruby on Rails)
• infra structure (Vagrant)
• This project is made up of only me.

Dec 2014 – Oct 2015 · 10 mos

• Management of project member. Including programming of the python, ruby on rails, ruby, haml, html, coffee script, scala and Java etc.

Oct 2014 – Nov 2014 · 1 mo

• Spun off from Koyu, which continued the same a role as Koyu. Developed server and front-side system of arithmetic quizzes for elementary school based on Ruby on Rails and AWS.

May 2014 – Nov 2014 · 6 mos · Tokyo, Japan

• My research topic is "Formation Mechanism of Western Pacific Teleconnection Pattern". The Western Pacific pattern is related to cold surge around East-Asia. For revealing it, I used method of data science (ex. Multivariate statistics(PCA, SVD etc.)) and dynamic diagnosis (ex. Energetics).

May 2013 – Feb 2014 · 9 mos · Tokyo, Japan

• My research topic is "Formation Mechanism of Western Pacific Teleconnection Pattern". The Western Pacific teleconnection pattern is related to cold surge around East-Asia. For revealing it, I used method of data science (ex. Multivariate statistics(PCA, SVD etc.)) and dynamic diagnosis (ex. Energetics).

Jun 2013 – Oct 2014 · 1 yr 4 mos · Tokyo, Japan

• Developed server system for education of elementary school. Languages are Ruby on Rails, CoffeeScript, SCSS, Haml, Ruby and Python.