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Next Generation High Performance Architecture Research Team
RIKEN Center for Computational Science
(Team Leader: Masaaki Kondo)

Research Field

R-CCS (Director: Dr. Satoshi Matsuoka) is the organization which has two major functions, one for research and development of computational science and the other for operation of the K supercomputer. R-CCS cooperates with many research organizations of a wide-range of research fields, forms an international center for research and development, and plays the leading role of computational science in Japan. In R-CCS, computer science and computational science closely cooperate, and conducts research and development of common foundational nature for a wide range of fields in computational science, and also conducts research and development for high performance computing technologies.

The post-K computer development plan under the FLAGSHIP 2020 Project, initiated by the Ministry of Education, Culture, Sports, Science and Technology in 2014, has set the target of developing (1) the next generation flagship supercomputer of Japan (the successor of the K computer) along with (2) a wide range of applications that will address top priority social and scientific issues.

For the purposes of enhancing utilization of the K supercomputer and the Post-K supercomputer as well as advancing future parallel computing technologies, the Next Generation High Performance Architecture team is intended to tackle the following research agendas:

  • 1.Ultra high-bandwidth architecture based on novel technologies such as next generation non-volatile memory, stacked 3-D memory, as well as advanced optical interconnect
  • 2.Re-evaluation of non von Neumann architectures such as dataflow and systolic arrays based on latest advances in device technologies
  • 3.Acceleration of machine learning and neuromorphic computing as well as advancement of scientific simulations utilizing those technologies
  • 4.Next generation ultra power-efficient architectures based on the integration of various types of accelerators and general purpose processors
  • 5.Hybrid computing architectures that combine the benefits of quantum computing and classical computing
  • 6.Next generation ultra-fast optical interconnect and optical switches
  • 7.Detailed co-design evaluation of next generation architectures above as well as the algorithms taking advantage of them on Post-K

Job title and Job description

Available positions

Research Scientist or Postdoctoral Researcher


We are seeking for a few person who can engage in one or more of following three topics:

  • 1.Research and development of high-performance computer architectures, next generation architectures, and optical interconnect technologies
  • 2.Research and development of highly parallel algorithms and programing languages for next generation high-performance architectures
  • 3.Research on evaluation methodologies of high-performance architectures and algorithms


The position requires a Ph.D. (including those who will take a degree before arriving at the post. If it has been 5 years or less since your acquisition of Ph.D. degree, you will be employed as a Postdoctoral Researcher), or equivalent/higher abilities to accomplish the offered topics. The candidate also should have good experience computer programming using C, C++, or Fortran. It is preferable to have the experience of parallel programing/tuning using MPI or OpenMP as well as the experience of offered topics. Communication in English (or Japanese) is required.

Work location

RIKEN Center for Computational Science,
7-1-26, Minatojima-minamimachi, Chuo-ku, Kobe, 650-0047, JAPAN

Salary and benefits

  • 1.(Research Scientist) One-year fixed-term employment contract, renewable based on evaluation, up to seven years since the initial date of hire. We plan to evaluate in the sixth year. Depending on the evaluation results, there is a possibility that it will be extended beyond seven years.
  • 2.(Postdoctoral Researcher) One-year fixed-term employment contract, renewable based on evaluation, up to five years since the initial date of hire.
  • 3.RIKEN will decide whether to enter into a new contract on the basis of the employee's abilities, work load, performance, work attitude, continuation of the center, laboratory or project in which the employee is involved at the time of termination of the original contract, and on the basis of RIKEN's situation and budget conditions at the time. In principle, employment contracts will not be renewed for individuals older than 65 years.
  • 4.The employee's period of fixed-term employment cannot exceed 10 years from the initial date of hire (or 10 years from April 1, 2013 for fixed-term employees already at RIKEN prior to this date).

There will be a trial period of employment (in principle, 2 months).
Salary will be commensurate with qualifications and experience. Commuting and housing allowances will be provided. Social insurance will be applied. Mandatory membership in the RIKEN Mutual Benefit Society (RIKEN Kyosaikai).
These positions fall under the specialized duties discretionary work system; one working day will be calculated as 7 hours and 30 minutes.
Days off include public holidays, New Year's holidays (Dec. 29 - Jan 3), and RIKEN Foundation Day. These and other provisions are in accordance with RIKEN regulations.

RIKEN is promoting a Gender Equality Program by taking various measures to create a workplace where both men and women are able to give full rein to their talents and abilities. When applicants are judged to be equally qualified on the basis of fair and impartial criteria, women applicants will be given preference.

Also, eligible for an exemption from repayment for category 1 scholarship loans provided by the Japan Student Services Organization before fiscal year 2003, and eligible applying for the MEXT Grants-in-Aid for Scientific Research (Kakenhi).

Application and Required documents

Applications composed of the following documents must be submitted to the mailing address given below. Emailed applications will be accepted when the files are in the form of PDF.

  • 1.Curriculum Vitae or Curriculum Vitae (with your photo and email address)
  • 2.List of research achievements (publications, presentations, awards, software development/release projects you are involved in, etc.).
  • 3.Up to five reprints of selected research articles
  • 4.The topics you apply and your experience in that field, together with your research plan if employed (within 2 pages in A4 format)
  • 5.At least one letter of recommendation from a person who can evaluate your work with his/her signature on. The letter should be addressed to the Director of RIKEN Center for Computational Science (one recommendation letter should be from the current supervisor. If this is difficult, one from someone who knows the applicant well)
  • 6.Consent form for handling personal information based on GDPR
    If you are a resident of the European Economic Area (EEA), you are required to submit the document, “Consent form for handling personal information based on GDPR” with your signature.
    *You will find detailed information about General Data Protection Regulation (GDPR) on the following website:
    Data protection | European Commission


Until the final candidate is found.

Handling of personal data

All private data sent to RIKEN in application for employment will be handled in strict confidentiality, and such data will not be utilized for any other purpose or disclosed to any third party. Application documents will not be returned.

Selection process

Selected applicants will be invited for interviews (twice for Research Scientist, once for Postdoctoral Researcher). Any inquiries on the selection process and results will not be accepted.

Start of employment

At the earliest possible time after November 1, 2018 (negotiable).

Contact information and Send application to

Address: 2-2-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
RIKEN Kobe branch, Kobe Administrative Division
Kobe Human Resources Section
Email: kobe-jobs [at] riken.jp (Replace [at] with @ ) Please make sure to indicate “Application for (name of the position) of Next Generation High Performance Architecture Research Team” in red on the envelope or in the subject column.


Updated as of Mar 27, 2019: "Required documents"