Experience

2026

  • The DIVE INTO MIXI 2026 certificate next to MIXI paper fans

    DIVE INTO MIXI 2026 (Work-based Internship)

    MIXI, Inc.

    2026.7 – 2026.8

    • Assigned to the mixi2 team for a two-month placement
    • Worked full-stack on a new feature, from ideation through spec writing to implementation
    FlutterGoTypeScript

  • Cygames Engineer Course (Summer)

    Cygames, Inc.

    2026.7

    • Learned Unity, C# and Git/GitHub from the ground up, then spent five days extending a game implementation
    UnityC#
  • Crouching beside the Ameba mascot statue at the CyberAgent office

    CA Go College

    Write-up

    CyberAgent, Inc.

    2026.2 – 2026.3

    • Spent a month learning Go fundamentals including syntax and API implementation
    • Focused on architecture design with a test-first approach for the final project
    Go

2025

  • Standing in front of the Google logo wall wearing a propeller hat

    Google STEP Internship

    Google Japan

    2025.11 – 2026.2

    • Worked on server-side development for Google Maps on the GEO/UGC/Notification Team
    • Gained hands-on engineering experience over 16 weeks through code reviews
    JavaKotlin

  • CA Tech Lounge

    CyberAgent, Inc.

    2025.10 – Present

    • Participating in CyberAgent's community space as a backend member
    • Kept the community Slack lively and organized club activities, receiving the Lounge Award in July 2026
  • Okaimono Panda figures on display at the Rakuten office

    Rakuten Group Work-based Internship

    Rakuten Group, Inc.

    2025.8 – 2025.10

    • Worked on a PoC for an internal AI agent tool in the AI & Data Division
    • Gained my first full-time engineering internship experience
    PythonTypeScript
  • The mercari logo above the office reception desk

    Mercari Bold Program for Women

    Mercari, Inc.

    2025.8

    • Joined an overseas ideathon as an engineer on the India team
    • Worked on the planning and mockup development of "Ma-ango", an anonymous calling app for women
    Figma

  • GCI 2025 Summer

    Matsuo-Iwazawa Lab, The University of Tokyo

    2025.4 – 2025.8

    • Completed the course, learning the fundamentals of data analysis using Python
    Python

2024

  • Receiving the certificate at the WaffleCollege closing ceremony

    WaffleCollege Tech Career Course

    NPO Waffle

    2024.9 – 2025.1

    • Learned the fundamentals of web application development using Flask in a five-month bootcamp
    • Developed "Sorry.com" and won both the Best Award and the Japan Research Institute Award at the graduation hackathon
    PythonFlask

  • JTP Summer Internship

    JTP Co., Ltd.

    2024.8

    • Assigned to the DX team, creating customer-facing introduction videos about RAG and file search
    • Gained insights into the IT industry
  • A brick campus building and flower bed at Tsuda University

    Tsuda University, College of Liberal Arts, Department of Information Science

    Tsuda University

    2024.4 – Present

    • Studying object-oriented programming in Java and other computer science fundamentals
    Java