Seeking Research Scientists or Postdoctoral Researchers

Research Field

The RIKEN Center for Computational Science (R-CCS) is operating the world's leading K computer, and also has a strong Research Division. R-CCS takes the lead in advancing the computational science and aims to be an international center of excellence for computational science in collaboration with a wide range of research organizations. R-CCS integrates the computer science and computational science to conduct most advanced research and development of a wide range of applied scientific computation, as well as of high performance computing technologies.

The objective of the unified simulation research team is to develop simulation methods which can treat complex flow problems coupled with such as structure deformation, heat-transfer, electromagnetic field or chemical reaction by efficiently utilizing massively parallel environment such as K-computer and post-K. For that purpose, we have to research new algorithm for solving multiple partial differential equations with various time and length scales simultaneously. We also have to develop a tool or algorithm for the improvement of massively parallel efficiency to support programming and usage environment of the supercomputer. The simulation technology developed in the team is directly validated and evaluated in RIKEN Industry-Academia consortiums for its implementation in the industry.

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 flow simulation solver on passively parallel environment.
  2. Research and development of algorithm for complex phenomena of multiple governing equations for flow, structure, heat, electromagnetic field, or chemical reaction.
  3. Research and development of algorithm or tool for efficiently utilizing massively parallel environment (such as dynamic load balancing method).


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: those who have considerable experience in actual simulation and analysis of engineering complex phenomena are highly evaluated. The candidate also should have good experience of not only computer programming using C, C++, or Fortran but also parallel tuning using MPI or OpenMP. It is preferable to have experience of the 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.
  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 Equity 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 WORD(56KB) or EXCEL(58KB) (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)


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 September 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] [at] with @ )
Please make sure to indicate “Application for (name of the position) of Complex Phenomena Unified Simulation Research Team” in red on the envelope or in the subject column.