Takuya Iwashiro

Joined a Japanese startup developing a food service infrastructure SaaS platform as a freelance full-stack engineer. The company raised ¥7.46 billion in Series B funding, led by Bessemer Venture Partners and Hillhouse Investment Management, with additional participation from Flight Deck Capital and Eclectic Management. Key responsibilities included: • Requirement definition • High-level and low-level system design • Front-end and back-end development • Testing and debugging

Worked as a full-time engineer at a Japanese startup that released a 13-billion-parameter LLM—the largest exclusively Japanese-language model—under the Amazon Web Services Japan “AWS LLM Development Support Program.” The company successfully raised 4.5 billion yen in Series D funding during this time.

As a full-time employee (40 hours/week) at a startup company listed on the Tokyo Stock Exchange Growth market and providing Japan’s largest cloud accounting software, responsible for the following: • Requirement Definition • High-Level Design • Low-Level Design • Front-End Development • Back-End Development • Testing and Debugging • Version Control • Documentation • Participation in the Internal Front-End Committee • Candidate Selection and Screening and Casual Interviews

As a full-time employee (40 hours/week) at a startup company developing the first therapeutic app in Japan to receive medical device approval, responsible for the following: • Requirement Definition • High-Level Design • Low-Level Design • Front-End Development • Back-End Development • Testing and Debugging • Version Control • Documentation • Maintenance of Internal Libraries

As a full-time Web Front-End Engineer (40 hours/week), stationed at Japan’s largest human resources service company listed on the Tokyo Stock Exchange Prime Market, responsible for the following tasks: • Requirement Definition • High-Level Design • Low-Level Design • Front-End Development • Testing and Debugging • Version Control • Documentation

As a full-time employee (40 hours/week) at a national university in Saitama Prefecture, responsible for the following: • Faculty Administrative Duties • Headquarters Accounting Tasks • Headquarters Bidding Operations • Headquarters Human Resources Tasks

As a full-time employee (40 hours/week) at one of Saitama Prefecture’s leading regional banks, listed on the Tokyo Stock Exchange Prime Market, responsible for the following: • Corporate Loan Sales • Personal Loan Sales • Sales of Financial Products such as Investment Trusts