1. Home
  2. Careers
  3. Job Openings

Seeking a Postdoctoral Researcher or Research Scientist (W22015)


Electronic States Microscopy Research Team
RIKEN Center for Emergent Matter Science
(Laboratory head: Xiuzhen Yu)

Research field

Our team is working on the real-space observation of electron structures or topological electron-spin textures and their dynamics in strong-correlation systems by means of atomic-resolution electron microscopy. We use various microscopy techniques, such as the electron tomography, in-situ imaging, differential phase contrast microscopy, electron energy-loss spectroscopy, and energy dispersive spectroscopy to explore the electron structures and their dynamical phase transition or phase separation. We also use these powerful tools to quantitatively characterize the nanometric magnetic and electric fields in topological matters to exploit emergent phenomena.

For more information, please refer to the following webpage:
Electronic States Microscopy Research Team

Job title and job descriptions

Job title, available positions

Postdoctoral Researcher or Research Scientist: 1 position

Job description

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

  • *The applicant will be assigned to an appropriate position based on his/her ability and aptitude.


The candidate should possess a doctoral degree in electron microscopy, or the candidate will be able to obtain a doctoral degree in the field of electron microscopy before the work start date.

  • The candidate must be able to communicate and work efficiently with collaborators both inside and outside the team to promote their research.

Work location

Branch and address

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

Salary and benefits

The following rules do not apply if the appointment is to begin on or after April 1, 2023, in accordance with the open recruitment procedure by RIKEN after October 17, 2022.

"The employee’s period of fixed-term employment cannot exceed 5/10 years from the initial date of hire (or 5/10 years from April 1, 2013 for fixed-term employees already at RIKEN prior to this date)."

  • 1.A one-year fixed-term employment contract, renewable based on evaluation, to a maximum 3 years of employment for Postdoctal Researcher and 10 years of employment for Research Scientist.
  • 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).
  • 4.When the center to which the Employee is affiliated is scheduled for a final review in FY2024 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 FY2025 year that would extend employment beyond the center's final fiscal year.
  • 5.For Research Scientist: When the Employee's research is scheduled for review in the Employee's 5 years 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.)

In principle, the first two months of employment is considered a trial period.
Salary will be an annual salary based on experience, ability, and performance, and will consist of a base salary and a variable salary. The variable salary will be determined each fiscal year based on experience, ability, and performance. The monthly base salary is 290,200 JPY for Postdoctoral researcher and 345,600~468,200 JPY for Researcher scientist as of April 1st 2022. The monthly base salary and variable salary are subject to change due to amendments to RIKEN regulations.

Discretionary work, commuting and housing allowances will be provided. Social insurance will be applied.

The approximate amount of monthly salary at the time of employment:
The monthly salary including discretionary work allowance at the time of employment will be more than 340,000 JPY for Postdoctoral researcher and 450,000 for Researcher scientist.

Mandatory membership in the RIKEN Mutual Benefit Society (RIKEN Kyosaikai).
This position falls 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.
Paid leave includes annual paid leave (up to 20 days depending on the month of employment), special paid leave (childcare, family nursing care, etc.), and work life balance holidays (up to 7 days depending on the month of employment).
There are also additional leave systems such as maternity leave, childcare leave, and family nursing care leave.
RIKEN has introduced telework as a temporary and special measure to prevent the spread of COVID-19. You may be asked to work from home according to the instructions of the institute. You can also choose to work from home with the permission of your supervisor.
No smoking on site (designated smoking areas available)
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

Required documents

  • 1.Complete CV or 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. W22015).
  • 2.List of research achievements and publications
  • 3.A letter of recommendation from the current supervisor (If unavailable, a letter from a substitute reference will be acceptable.)
  • 4.5 set of copies of your major papers
  • 5.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

How to apply

Please submit the documents below as PDF files to the address in Contact Information below.

  • *Write "Application Documents; (W22015) Electronic States Microscopy Research Team (Research Scientist or Postdoctoral Researcher) " in the subject line.
  • *Note: If the submission requirements are not met, your application will not be received.
  • *Recommendation letters must be emailed directly from the reference to the contact address.
  • *Please name it "Recommendation letters of Electronic States Microscopy Research Team (Research Scientist or Postdoctoral Researcher) applicant name" and specify the referee's contact information (Name, affiliation, job title, phone number, and email address) in the body of email.
  • *Subject of the email should be "Recommendation letters; (W22015) Research Scientist or Postdoctoral Researcher applicant name".

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 of employment

August 1st, 2022 (Negotiable)

Contact Information / Send application to

RIKEN Center for Emergent Matter Science
Electronic States Microscopy Research Team
2-1 Hirosawa, Wako, Saitama 351-0198
Email: yu_x [at] riken.jp
For inquiries, please send an email.


  • Updated as of Jun 28, 2022: "Salary and benefits"
  • Updated as of Aug 18, 2022: "Qualifications"
  • Updated as of Nov. 4, 2022: "Salary and benefits"