Apr. 7, 2023

Postdoctoral Researcher
Laboratory for Neural Stem Cell Research
Center for Brain Science (W23012)


Laboratory for Neural Stem Cell Research, Center for Brain Science (Team Leader: Ryoichiro Kageyama)

Research Field

Medical Science, Interdisciplinary, Other


Social epidemiology, Big data analysis, Network analysis, Online behavioral studies

Research Field

In addition to mechanisms of proliferation and differentiation of neural stem cells, our lab also conducts collaborative research on social epidemiology with the use of network and/or big data analysis to study the social aspect of various medical issues in our society, such as autism and COVID-19. If you are interested in joining us, please visit this webpage (

Job title and job description

Job title

Postdoctoral Researcher : 1 position
Postdoctoral Researcher is defined as those with a doctoral degree of 5 years or less.

Job description

The successful candidate will lead projects on topics related to the roles of socio demographic factors in various medical issues in our society. The work will primarily involve designing and conducting experiments, data analysis, presentation of results at conferences, and preparation of research manuscripts.


The candidate should have experience in computer programming and data analysis (e.g. Python / R / Stata), as well as research experience in social epidemiology and/or network analysis demonstrated by first-authorship in preprints / published papers).

A doctoral degree in a related field with less than 5 years of work experience after obtaining PhD is required.

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 March 31, 2025.
  2. RIKEN may adjust the above maximum period of renewability based on a) the employee’s abilities, workload 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.

In principle, the first two months of employment is considered a trial period. Salary will be a monthly 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 295,100 JPY as of April 1st 2023. 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 monthly salary including discretionary work allowance at the time of employment will be 335,000 JPY or more.

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.

Smoking is not permitted on site except in designated smoking areas. Smoking will be entirely prohibited on site from April 2024.

These and other provisions are in accordance with RIKEN regulations.

RIKEN is actively undertaking initiatives to promote gender equality and diversity, and moving forward with the establishment of a diverse and vibrant research environment. If multiple candidates are found to have the same aptitude following a fair assessment, active efforts will be made to recruit female candidates.

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).

The Wako Campus has an on-site daycare, RIKEN Kids Wako. For details, please send an email to the HR at kids [at]

Application and required documents

Required documents

  1. Complete CV (please include a list of publications) (RIKEN CV: WORD(56KB) or EXCEL(159KB)
    *Write down in the notes section of your CV the number written next to the title of the job position (e.g. W23012).
  2. Cover Letter (Reasons for applying for the post (e.g., personal strengths, motivation, future research plans, career aspirations, external funding awarded, etc.))
  3. List of research achievement and publications
  4. Names and email addresses of two referees who can be contacted to provide information about the candidate’s past work experience (ideally including current supervisor)
  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:

How to apply

All documents should be combined into a single ZIP file and uploaded to the following website:

The file name of the ZIP should contain your contact email address.
After you uploaded the ZIP file, please let us know the file name of the uploaded file.
If a confirmation email is not received within 7 days after submission, please contact us again.

Email: puichuen.tam[at] (Replace [at] with @)

Note: All the submitted 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, interview, and oral presentation by selected applicants

Start of Employment

Apr 1, 2023, or later (Negotiable)

Contact Information

RIKEN Center for Brain Science
Laboratory for Neural Stem Cell Research
Email: puichuen.tam[at] (Replace [at] with @ )
For inquiries, please send an email.