R-Hack https://blog.hatena.ne.jp/R-Hack/ R-Hack（楽天グループ株式会社） https://commerce-engineer.rakuten.careers/ Event English Rakuten Group regularly hosts company events to encourage employees to connect with one another. On Friday, October 31, 2025, we celebrated Halloween with RAKUTEN HALLOWEEN 2025! This festive Halloween event gave employees the chance to enjoy the celebration that has been growing ever more popular in Japan. The entrance hall of Rakuten Crimson House was transformed with Halloween decorations. The theme is different every year, making it a highlight of the event and a popular spot to take photos. 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fcommerce-engineer.rakuten.careers%2Fentry%2Fen%2Fannounce%2F004" title="RAKUTEN HALLOWEEN 2025 — Rakuten’s Annual Halloween Event - R-Hack（楽天グループ株式会社）" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> https://cdn-ak.f.st-hatena.com/images/fotolife/R/R-Hack/20251125/20251125110229.png Hatena Blog https://hatena.blog 2026-01-16 10:08:57 rich https://commerce-engineer.rakuten.careers/entry/en/announce/004 1.0 100%