Seeking a Research & Development Scientist or Postdoctoral Researcher

Research Field

The Microbe Division in RIKEN BRC has been collecting, preserving, and distributing microbial strains as one of the leading culture collections in the world since established as Japan Collection of Microorganisms (JCM). JCM maintains and serves high-quality microbial resources useful for academic studies and various research fields particularly in health and environment-related sciences. JCM is also working on the development of microbial resources and related techniques for studying yet-uncultivated microorganisms and microbial communities.

Job title and Job description

One person for Research & Development Scientist or Postdoctoral Researcher(microbes difficult to culture)

Job description
Isolation and cultivation of microorganisms yet-uncultured and very difficult to culture that are symbiotic and tightly interacting with environments as key players of ecosystems, such as iron oxidizers and extremophiles including Archea, based on information of structure and function of microbial communities containing these target microorganisms. Also, identification, classification, characterization, and genome analysis of them, for serving the enrichment of microbial collection (bioresources) in JCM


  1. Candidates should possess a doctoral degree in a related field and the ability to engage in the research described above in a cooperative manner with other members.
  2. Candidates should deeply understand activities in microbial bioresource centers, and research experience and achievement for isolating and culturing microorganisms very difficult to do so.
  3. Candidates who have experience and achievement of identification, classification, characterization, and genome analysis of microorganisms will be given priority.
  4. Candidates who have experience and achievement for studying structure and function of microbial communities in natural samples will be given priority.

*Research & Development Scientist is defined as those with a doctoral degree more than 5 years.
*Postdoctoral Researcher is defined as those with a doctoral degree of 5 years or less.

Work location

RIKEN Tsukuba Branch
3-1-1 Koyadai, Tsukuba City, Ibaraki 305-0074, Japan

Salary and benefits

  1. One-year fixed-term employment contract, renewable based on evaluation, to a maximum of the end of the fiscal year (March 31) in which the employee completes 7 years of employment.
  2. RIKEN may adjust the above maximum period of renewability based on a) the employee’s abilities, work load at the time of contract completion, performance and work attitude and b) the continuation of the employee’s center, laboratory or project and RIKEN’s management situation and budget at the time. In principle, employment contracts will not be renewed for individuals older than 65 years.
  3. 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).

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). 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.

Application and required documents

  1. Complete CV with photograph and Email address
  2. List of research achievement (original papers, reviews and books, patent applications, awards, invited lectures, competitive research funding, and others)
  3. Brief description of previous research and achievements, and future aspirations for contribution to microbial collection or bioresources in JCM (within two sheets of A4 document)
  4. Two letters of recommendation (including one from the current supervisor, If available)
    (If it is difficult to obtain a recommendation letter from the current supervisor, a recommendation from a third party will be accepted.)
    The letter of recommendation should be addressed to the “Director of RIKEN BioResource Center.”
  5. A copy of PhD degree diploma


November 30, 2017

Handling Personal Data

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

Selection process

Selection will be made based on application screening and interviews.

Start of Employment

April 1, 2018 or earlier

Send application to

Send your application to the following address by postal mail. Attachment of e-mail is not acceptable. Write in red “Postdoc application, Microbe Division (difficult to culture)” on the envelop. Applicants in Japan should send application by postal mail with “kakitome”.
Please refer to URL below for job offering in Japanese.

Contact Information

Personnel Section, Tsukuba Administrative Division, RIKEN Tsukuba Branch
3-1-1 Koyadai, Tsukuba, Ibaraki 305-0074, Japan
Inquiry is available only by emails. We don't accept inquiry phone calls. Your email subject should begin with "Postdoctoral Position - Microbe Division (difficult to culture)".
Email: koubo[at] (please replace [at] with "@")