In September 2023, Sakamoto founded BANKEY and assumed the role of Representative Director after leaving "GIG-A," a digital bank, in August 2023. In November 2021, he co-founded "GIG-A," leading initiatives such as partnerships, licensing, and launch.

In 2021, he gracefully resigned from Mitsubishi UFJ Financial Group, where he played a pivotal role in digital strategy and new ventures since 2016. Notable achievements included establishing a groundbreaking subsidiary for advanced banking services and managing a student support project during the COVID-19 pandemic.

His career began in April 2008 when he joined Mitsubishi UFJ Bank after graduating from the University of Tokyo's Faculty of Agriculture.

In January 2024, Takahashi joined BANKEY as the Chief Technology Officer (CTO), overseeing comprehensive product development. In July 2022, he left Nomura Research Institute and led the development organization as VP of Engineering at a SalesTech startup. There, he handled diverse projects in health tech, retail, transportation, and finance.

Having joined Nomura Research Institute in April 2012 as a Technical Engineer, he worked on in-house middleware and infrastructure changes for large-scale online systems. He extensively covered various sectors, applying his full-stack engineering skills.

While emphasizing end-to-end commitment from upstream design to prototyping and implementation, Takahashi actively participated in hackathons and accelerator programs during his private time. He concluded his tenure at Nomura Research Institute in July 2022.

He completed his postgraduate studies at Kobe University's Graduate School of System Informatics.