Office Assistant

Sakana AI is looking for an Office Assistant to support the smooth operation of our Tokyo headquarters. As a rapidly growing AI research company with ~150 employees, international visitors, and a fast-paced work environment, our office needs someone who can keep everything running seamlessly behind the scenes. You will be the heart of our workspace, ensuring that our researchers and engineers have everything they need to do their best work.

In this role, you will manage daily office logistics including supply procurement, mail handling, and facility maintenance coordination. You will coordinate meeting room schedules, set up video conferencing for our international calls, manage visitor registration and guest access, and assist with organizing team events — from weekly all-hands catering to quarterly offsite logistics. You will also handle vendor relationships, process invoices, and support our HR team with onboarding logistics for new hires.

What makes this role rewarding is the environment you will be part of. Sakana AI is working on some of the most exciting AI research in the world, founded by pioneers of the field. You will interact daily with brilliant researchers and engineers from around the globe, and your work directly enables their productivity. The office culture is collaborative, international, and fast-moving.

We are looking for someone who is proactive, organized, and takes genuine pride in creating an excellent working environment. You should be a natural problem-solver who anticipates needs before they arise, can juggle multiple priorities gracefully, and brings positive energy to the workplace every day.

Requirements:

• 1+ years of office administration, executive assistant, or facilities management experience
• Strong organizational and time management skills with attention to detail
• Proficiency with office productivity tools (Google Workspace, Slack, basic spreadsheets)
• Excellent interpersonal skills and a warm, professional demeanor with visitors and team members
• Fluent in Japanese with working English proficiency for communication with international team members
• Proactive mindset that anticipates needs before they arise
• Experience in a tech startup or international company environment is a plus