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Seeking a Research Scientist or Postdoctoral Researcher (R-CCS2202)(High Performance Artificial Intelligence Systems Research Team)
RIKEN(The Institute of Physical and Chemical Research)
URL of institution or department
Center for Computational Science
Institution type
National research institute / Independent administrative institute
Job posting URL
Content of job information

High Performance Artificial Intelligence Systems Research Team
RIKEN Center for Computational Science
(Laboratory head: Mohamed Wahib)

[Research Field]
RIKEN Center for Computational Science (R-CCS), led by Center Director Satoshi Matsuoka, is an international research center in high performance computing and computational science in Japan. Our objectives are to investigate “the Science of (high performance) computing, by computing, and for computing", to research and develop our technologies (R-CCS technology) and software (R-CCS software), which we consider our core competence, in order to produce world-leading scientific and engineering results for use in Japan as well as globally.

Also, R-CCS started operating Japan's national flagship supercomputer Fugaku, as a shared national facility to support a wide range of research activities since 2021.

The High Performance Artificial Intelligence Systems Research Team is an R-CCS laboratory: Conducts research on high performance systems – software – algorithms to speed up AI applications based on large-scale and massively parallel systems in the context of “HPC for AI", using cutting-edge supercomputers, such as Fugaku, and advanced high-performance computing infrastructures. Explores elemental technologies for “AI for HPC": AI optimizes various functions of HPC systems, such as resource scheduling, electrical power control, program execution, etc. For these, aims to “mutually improve AI/machine learning and high-performance computing", in collaboration with other research institutions working on HPC and AI in Japan.

[Job title and Job description]
Job title:
Research Scientist or Postdoctoral Researcher: one position

Job description:
Conduct research on next-generation AI systems by focusing on the following topics:

1.Acceleration of HPC algorithms using machine learning
2.Auto generation of code for HPC algorithms using empirical models based on machine learning.
3.Extreme speedup and scalability of deep learning:
Achieve extreme scalability of deep learning in large-scale supercomputing environments including Fugaku, extending the latest algorithms and frameworks for deep learning.
4.Performance analysis of deep learning:
Accelerate computational kernels for AI over the state-of-the-art hardware architectures by analyzing algorithms for deep learning and other machine learning/AI, measuring their performance and constructing their performance models.
5.Acceleration of modern AI algorithms:
Accelerate advanced AI algorithms, such as ultra-deep neural networks and high-resolution GAN over images, those that require massive computational resources, using extreme-scale deep learning systems.

[Work location]
Branch and address:
Tokyo Office, RIKEN Center for Computational Science
1-4-1, Nihonbashi, Chuo-ku, Tokyo, 103-0027, JAPAN

Note: Based on a consultation with the Team Leader, working at R-CCS Kobe campus may be negotiable if it offers advantages in terms of work performance.

[Start of Employment]
At the earliest opportunity (subject to negotiation)

High Performance Artificial Intelligence Systems
Intelligent Programming Systems
Performance Modeling of AI Systems e.g. Deep Learning
Scalable Deep Learning
Convergence of AI and Simulation

Research field
All Informatics
Job type
Researcher/Postdoc level
Employment status
Work location
Kanto district - Tokyo 

Applicants must have a Ph.D. or expect to receive a Ph.D. before the date of appointment. In general, those who earned a doctorate within the past 5 years will be appointed as Postdoctoral Researcher, and those who earned a doctorate more than 5 years ago will be appointed as Research Scientist. Exceptions may apply to those with an outstanding record of achievements. Individuals with research experience in the areas described in “Job description" are strongly preferred. The applicant must be socially cooperative, able to conduct research independently, and have good communication skills.


For details about “Salary and benefits", please refer to the above “Job posting URL".

Application period
2023/05/12 Deadline for receipt
Applications will be accepted until the position is filled.
/notification of result
/contact details

[Application and required documents]
Required documents:
Please refer to the above “Job posting URL" regarding the “Required documents"

How to apply:
Combine the above documents into a single PDF file and upload them to the website:
Please refer to the above “Job posting URL".

The file name of the PDF should contain the job ad number “R-CCS2202, HPAIS Research Team" and the applicant's name. Please write the name of the position that you apply for in the “Add additional information" box.
After you uploaded the PDF file, please let us (kobe-jobs[at] know the file name of the uploaded file. When you send us an email, please write your name, Job Ad number and the name of the position that you apply for.

If the recommendation letter is directly submitted from the referees, please send it to (kobe-jobs [at] by attaching it to the email. Please write “R-CCS2202, HPAIS Research Team, [name of the position], [applicant's name] (Recommendation letter)" in the subject line and specify the applicant's name, referee's name and contact information in the email.
If a confirmation email is not received within 7 days after submission, please contact: kobe-jobs [at]

Note: Submitted documents will not be returned.

Applications will be accepted until the position is filled.

[Selection process]
Applications will be reviewed upon receipt, and interviews will be conducted for selected applicants (2 interviews for Research Scientist position and one interview for Postdoctoral Researcher position.) No inquiries on the selection process and results will be answered.

[Contact Information]
For inquiries on research conducted by the team, please contact the Team Leader by email:

Mohamed Wahib
High Performance Artificial Intelligence Systems Research Team
RIKEN Center for Computational Science (R-CCS)
Email: mohamed.attia [at]

Online Submission
Online Submission with all application documents is available.
JREC-IN Portal web application
Not available
Email Application
Not available
Recruiting Institution's
Web application system
Additional information

Handing Personal Data:
Submitted documents are strictly protected under the RIKEN Privacy Policy and will be used only for the purpose of applicant screening. Personal information will not be disclosed, transferred or loaned to a third party under any circumstances without just cause.

Updated as of Jun 14, 2022: "Start of Employment"

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