Support product managers with user feedback, requirements drafts, launch operations, user support, market research, data reporting, campaigns, events, and enterprise sales follow-up in Tokyo.
Sakana AI is a Tokyo-based AI research and product company developing efficient models, multi-agent systems and business applications. Its offerings include the Japanese-focused Namazu model, the Fugu model-orchestration platform, Sakana Chat and Translate, and Marlin, an autonomous research assistant for strategy teams.
Developers access Fugu and Namazu through APIs, while corporate and public-sector customers use packaged products or work with its Applied team on custom systems, including financial-services applications. The company earns revenue from token-based API usage, product subscriptions and pay-per-use plans, alongside enterprise AI engagements.
- Can be worked in English
- 27%
- Visa-sponsorship signal
- 32%
- Remote or hybrid
- 5%
- Most requested
- Generative AI / LLM 10
- Machine learning 4
- Python 2
- Docker 1
- Google Cloud 1
- JavaScript 1
- JLPT N3 or lower 2
- JLPT N2 1
- JLPT N1 5
- Native Japanese 2
- No Japanese level detected 6
- Japanese posting, level unstated 6
- Common areas
- Consulting & strategy 3
- HR & recruiting 3
- Operations 3
- Finance & accounting 2
Measured from the 22 listings Ranked has live for Sakana AI. Japanese level, visa signal and skills are AI-graded from each posting and can be wrong — confirm against the employer's original posting before applying.
22
open positions at Sakana AI
3
Connect AI research with Japanese government budget and policy processes. Work with executives, project managers, engineers, and researchers to create proposals, business summaries, and technical documents.
Own corporate IT operations across devices, identity, SaaS, procurement, security, networking, and helpdesk, while replacing manual processes with AI agents and automation.
Develop LLMs across pre-training, mid-training, post-training, and evaluation. Own a technical area, build training data, design experiments, and improve models in a Tokyo hybrid role.
Responsible for driving business growth by expanding products to enterprise clients and other customers.
Responsible for building the GTM foundation from scratch and establishing marketing and growth mechanisms.
Source and engage exceptional talent across engineering, research, and business roles through direct outreach.
The role involves financial reporting, supporting management decisions, and building efficient accounting processes.
Lead capital strategy, M&A, partnerships, and IPO preparation to scale Sakana AI's business globally.
Lead product vision and strategy for AI products, collaborating with engineers and researchers to launch innovative solutions.
Support the smooth operations of our fast-growing Tokyo office — facilities, vendors, and employee experience.
Lead the applied research and development of AI technologies to create innovative solutions for customers.
Join the Sakana AI RSI Lab to discover new laws of machine intelligence and build systems for high-dimensional search pipelines.
As the product team’s first data engineer, you will build our data infrastructure from the ground up to enable AI to autonomously analyze data.
Develop full-stack applications for AI products, integrating research into user-facing solutions.
Support recruiting through candidate communications, interview scheduling, process and data administration, vendor coordination, event support, and onboarding-related tasks in Tokyo.
Lead commercial and corporate legal work for an AI startup, including contract drafting and negotiation, IP, compliance, regulatory guidance, disputes, and legal-team management in Tokyo.
Own payroll, social and labor insurance, attendance, and employee procedures while improving compliant HR processes for a rapidly growing AI startup in Tokyo.
Manages budgets, schedules, and handles external communications, enabling researchers and engineers to focus fully on research at maximum velocity.
Lead the design of AI products, focusing on user experience and interaction patterns, while collaborating with various stakeholders.
Develop full-stack infrastructure for ML research and user-facing products, including data pipelines and benchmarking systems.
Infrastructure and Platform Reliability Engineer to keep Fugu fast, dependable, and cost-efficient as that moment turns into sustained scale.
