Kazumasa "Ebacky" Ebata

Chief Executive Officer

After working at a steel company and a financial information distribution company, he co-founded Odd-e Japan with an American partner.

As Japan's only Certified Scrum Trainer® (CST®) recognized by Scrum Alliance®, he also serves as the Asian regional leader of the Trainer Approval Community (TAC), promoting Scrum adoption and mentoring practitioners across Asia.

Outside of work, he founded Japan's first Scrum Alliance® certified community, SukuSuku-Scrum, in 2009, and established communities such as TDD Boot Camp, creating environments for Japanese engineers to enjoy learning.

Founded Gains Line in 2020.

I cherish the value of "having fun."

While I can't claim to know life well enough to have a true life motto, I treasure the act of feeling joy — and the ability to experience it.

Whether alone or with teammates, in any situation, I want to keep experiencing joy.

• Nickname: Ebacky. Rumored to be beloved both in Japan and internationally.
• Always in action — nobody knows when he sleeps.
• The office's go-to target for teasing, and he genuinely enjoys it. That said, he's sometimes described as intense.
• Weakness: cilantro. Eating becomes a struggle on Southeast Asia business trips — basically fasts.
• Tends to accidentally match accessories — watches, glasses — with teammates.

• A brain on par with Fugaku (the supercomputer)
• A bundle of pure vitality
• Gets rowdy when drinking
• Stoic at a medalist level
• Scary, troublesome, scary — yet kind

• Agile Game Development with Scrum (translation)
• Scrum: Agile Product Management — Making Products Customers Love (translation)

• How Teams Transform as if by Magic — The Story of a Man Captivated by Agile Scrum