DELTA Inc. to Sponsor and Exhibit as Platinum Sponsor at "RubyKaigi 2026"

DELTA Inc. (Headquarters: Shibuya-ku, Tokyo; Representative Director: Tetsuro Tan) announces its participation as a Platinum Sponsor and booth exhibitor at "RubyKaigi 2026" from April 22 (Wednesday) to April 24 (Friday), 2026.

RubyKaigi is an international conference on the Ruby programming language. Rubyists from all over the world gather to share deep technical knowledge about the Ruby interpreter and related technologies. Prominent Rubyists from Japan and abroad, including Matz (Yukihiro Matsumoto), the creator of Ruby, take the stage to discuss the latest trends and future of Ruby, making it widely supported by the developer community.

On the day of the event, we plan to hold a gachapon (capsule toy machine) event where you can win technical books, so please stop by the DELTA booth.

RubyKaigi 2026 Overview

Title: RubyKaigi 2026

Date: April 22 (Wednesday) - April 24 (Friday), 2026

Venue: Hakodate Arena / Hakodate Citizen's Hall (Hakodate City, Hokkaido)

Organizer: RubyKaigi Executive Committee
https://rubykaigi.org/2026/

About DELTA Inc.

DELTA Inc. has a vision of "forming an ecosystem that continues to support engineers in growing companies" and offers a wide range of technical and recruitment support services for CTOs and engineering organizations.

Through "CTO booster" and "VersionUp booster," we have diagnosed and supported over 200 projects, contributing to improving the productivity and optimizing the costs of engineering organizations.

Corporate Site: https://teamdelta.jp/

CTO booster: https://costcut.cloud/

DELTA's Billing Agency: https://resale.teamdelta.jp/

VersionUp booster: https://teamdelta.jp/lp/versionup

Head Office Location: Miyamasuzaka Building, 2-19-15-609 Shibuya, Shibuya-ku, Tokyo

Representative Director: Tetsuro Tan

Established: October 22, 2021

Capital: 5,000,000 JPY

Business Activities: Technical support for development organizations

Recruitment Information

DELTA is actively recruiting members to support its business growth.

• Leader for Cloud Cost Reduction Service: https://herp.careers/v1/sevenrich7/MOg1_Zxu1Uvs

• Cloud Engineer for Cloud Cost Reduction Service: https://herp.careers/v1/sevenrich7/8wMk2OUu19w3

• Generative AI Engineer (Second new graduates welcome, no generative AI experience required): https://herp.careers/v1/sevenrich7/KATUYLbMBUyG

• Solution Sales (For young professionals seeking growth and discretion): https://herp.careers/v1/sevenrich7/0_nh_GJ1izdf

• Public Relations/Marketing (Important position to lead DELTA's growth with engineers): https://herp.careers/v1/sevenrich7/so2BkuIKRYkF

【Inquiries regarding this release】

For inquiries and detailed consultations, please feel free to contact us using the form below.

Inquiry Form: https://teamdelta.jp/contact/

Phone Number: 03-6455-069