Member of Technical Staff (RSI Lab)

Tokyo, Japan

About the role

Member of Technical Staff (RSI Lab) Blog --> Career Opportunities --> ← All open positions Research Member of Technical Staff (RSI Lab) The Sakana AI Recursive Self-Improvement (RSI) Lab is a dedicated research group within Sakana AI, tasked with redesigning the AI development process itself with AI. Tokyo Full-time / Visiting Researcher English The Sakana AI RSI Lab is a dedicated research group within Sakana AI, tasked with redesigning the AI development process itself with AI. By transitioning from static, human-led R&D to autonomous, self-improving intelligence engines, we are turning constraints into our greatest compounding advantage. Working directly with our Co-Founder and CEO David Ha ( @hardmaru ), we are building the definitive architecture for the next frontier of AI. Please read our announcement about this moonshot effort. The establishment of our RSI Lab marks a serious commitment to engineering the next great leap in computational intelligence: transitioning from human-led R&D to autonomous, self-improving intelligence engines. Bolstered by Japan’s strategic push for sovereign AI capabilities, we are scaling our research and engineering resources in Tokyo to initiate a compounding intelligence explosion in order to achieve this mission. We are looking for exceptional, highly driven individuals to join us in building the engine of recursive discovery.

Who We Are Looking For We are seeking a select group of distinguished Frontier Research Scientists and Advanced Core Engineers to join our core team. You are a recognized innovator in the global AI/ML community. We are looking for distinguished individuals whose past work have already demonstrated a global impact and are widely acknowledged to have fundamentally altered the trajectory of the AI/ML ecosystem. You have likely produced contributions at top frontier labs or pioneered foundational frameworks, and you are entirely unsatisfied with the status quo. You have a proven track record at the frontier, but you are ready to break away from standard benchmarking and brute-force scaling to build the self-improving future. Sakana AI’s RSI Research What You Will Do Discover fundamental new laws of machine intelligence that bend the scaling curve. Apply open-ended evolutionary dynamics to high-stakes algorithmic domains, such as cybersecurity. Build the systems and infrastructure backbone of the RSI loop, optimizing high-dimensional search pipelines, managing massive distributed compute topologies, and productionizing automated code-generation stacks at an extreme engineering scale. If you are a visionary builder ready to relocate to Japan and engineer the engine of recursive discovery, we invite you to apply. Join the RSI Lab Note on Applications Please note that this specific role is highly selective. If you are passionate about our mission but your background does not perfectly align with this frontier profile, we strongly encourage you to explore our other open positions, including the research-focused Software Engineer (R&D) position and the Member of Technical Staff (Internship) position, on our careers page. If you are seeking an internship role at Sakana AI, please apply for the Member of Technical Staff (Internship) position instead. How to Apply 1 Find a role Review the open positions and identify the one that fits your background. 2 Email [email protected] Send a brief introduction and indicate which role you are applying for. 3 Submit the form Complete the Google Form with your CV and cover letter (English). ← Back to all open positions © Sakana AI 株式会社

About Sakana AI

Sakana AI develops research-oriented artificial intelligence systems that draw inspiration from natural processes like evolution and collective intelligence. The company designs methods such as evolutionary model merging, multi-agent orchestration, and autonomous research agents to create AI models capable of adaptation and collaboration across tasks. Its work includes systems that automate elements of scientific research and frameworks that combine multiple models to generate new, task-specialized AI learners. Sakana AI engages in partnerships with enterprise and research organizations to apply its technology in domain-specific workflows and innovation projects. The company contributes tools and models to the broader AI community and explores applications that extend beyond conventional AI pipelines.

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Job details

Location

Tokyo, Japan

Company

NameSakana AI
IndustryArtificial Intelligence (AI)
Team Size2

Funding

Total raised

$379M

Last stage

Series B

Investors

Lux Capital
Khosla Ventures
New Enterprise Associates
NVIDIA
MMitsubishi UFJ Financial Group

Founders

DH

David Ha

Co-Founder & CEO

LinkedIn
Llion Jones

Llion Jones

Co-Founder & CTO

LinkedIn
RI

Ren Ito

Co-Founder & COO

LinkedIn

What happens next.

No applications, no recruiter spam. Just the intro.

01

Confirm the fit

A few questions to make sure this role is the right shape for you. Two minutes.

02

I pitch you to the company

I write the intro, send it to the founder, and handle the back-and-forth.

03

A meeting lands on your calendar

If they’re a yes, I book the chat. You show up — that’s the whole job-hunt.