Seeking a Postdoctoral Researcher(W630)

Research field and overview

Physicochemical Soft-Matter Research Unit” is pursuing functionality of soft-matter systems from the viewpoints of physicochemical experiments and analyses. In our research unit, particular attention is paid to liquid crystals due to their self-organizability leading to multifarious structures in which many interesting physical phenomena can emerge. Our interest also covers potential applications of such soft-matter systems towards optical/electronic or chemical devices.

Job title, available positions and job description

Job title, available positions

Postdoctoral Researcher, one person, full-time

Job description

Experimental and analysis on physics and physical chemistry in soft matter systems (polymers, liquid crystals, colloids, supramolecular assemblies, etc). The candidate is preferred to have a research experience in the field of soft matter physics or optics.


The candidate should possess a doctoral degree (or are expected to have until the employment) in a related field and research experiences in the field of soft matter physics or optics.

Work location

Branch and address
RIKEN Wako (2-1 Hirosawa, Wako, Saitama 351-0198)

Salary and benefits

  1. A 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 5 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.
  3. The employee's period of fixed-term employment cannot exceed 10 years from the initial date of hire (or 10 years*2 from April 1, 2013 for fixed-term employees already at RIKEN prior to this date).
  4. When the center to which the Employee is affiliated is scheduled for a final review in FY2022 and it is decided that the Employee's research will not be continued, the provision given above for projects of limited duration applies and the Employee's contract will not be renewed for the FY2023 year that would extend employment beyond the center's final fiscal year.
  5. When the Employee's research is scheduled to be reviewed in his/her 5years from the original date of hire at CEMS, and when it is concluded that there is reason* to believe it will be difficult for the research (or technology development) to be continued, the employment contract will not be renewed for the next year. (*The reason may relate to the Employee's abilities, performance and/or work attitude.)

The salary system is annual and will be commensurate with qualifications and experience. Commuting and housing allowances will be provided. Social insurance will apply. Mandatory membership in the RIKEN Mutual Benefit Society (RIKEN Kyosaikai) is required.
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 promotes a Gender Equity Program by taking various measures to create an equitable workplace where both men and women are able to give full rein to their talents and abilities. When the abilities of candidates are judged to be equivalent through a fair and impartial evaluation process, preference will be given to females.

Application and required documents

Required documents

  1. Complete CV (with photo and email address) Write down in the notes section of your CV the number written next to the title of the job position (e.g. W630)
  2. List of publications
  3. PDF reprints of the five selected papers
  4. Brief summary of the major achievements and research proposal for future (3 pages in total)
  5. List of references
  6. Applicant's contact information
  7. Recommendation letter from the current/former supervisor (If the current supervisor's recommendation is not available, a recommendation letter from a third party will be accepted)The following documents in PDF format should be submitted via Email.

How to apply

All the applicants should make an inquiry via Email to the contact address given below prior to application. (Recommendation letters must be emailed directly from the reference to fumito.araoka [at]
Note: Application documents will not be returned.


Open until the position is filled

Handling 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.

Selection process

Application screening and interview for selected applicants

Start employment

As early as possible

Contact information/Send application to

RIKEN Center for Emergent Matter Science
Physicochemical Soft Matter Research Unit
2-1 Hirosawa, Wako, Saitama 351-0198
Email: fumito.araoka [at] (Replace [at] with @ )
For inquiries, please send an email.