Job description
Background of the recruitment and description of the project
Upstream Bioprocess Science Lab in Chemical & Biological Technology Labs, Astellas Pharma Inc. performs cell culture-based upstream process development for biologics such as monoclonal antibodies and other modalities, process characterization studies, and technology transfer of manufacturing processes to internal and external manufacturing sites. USBP is also responsible for establishing appropriate control strategies and preparation of submission documents for IND/BLA filings, as well as supporting the maintenance of commercial manufacturing based on robust quality control.
We are seeking a highly motivated scientist to proactively drive process development, technology transfer, and technical development activities within assigned areas for biologics projects in early- and late-phases as a member of the project and technical teams.
Work content and job description
- Execute upstream process development for biologics such as monoclonal antibodies, and support technology transfer activities to internal and external manufacturing sites for early- and late-phase projects.
- Establish appropriate control strategies for IND/BLA submissions and support the maintenance of commercial manufacturing to ensure a stable supply with consistent quality within project teams.
- Evaluate and support the introduction of innovative technologies in upstream processing in collaboration with internal and external partners.
- Participate in meetings with CDMOs and internal stakeholders across different time zones as a representative or member of the technical team and engage in technical discussions.
- May serve as Drug Substance Lead in biologics projects, designing and executing project CMC development strategies, driving planning and operational excellence, and ensuring seamless collaboration across CMC functions.
Assigned department
Existing departments
Upstream Bioprocess Science
Job type
- Researcher/Postdoc level
- Research/Educational Assistance
- R&D/Engineer
- Technical staff (private company)
Research field
- Life Science - Unspecified
Wages
Common to all Job Types
Annual Salary : 5 million yen ~ 10 million yen
Working hours
Common to all Job Types
Working hours :08:30-17:30
Application requirements
Qualifications
Education and Degree Requirements
Master / Bachelor
Work experience
<必須 / Required>
- Experience in upstream (cell culture) process development for biologics.
- Master’s degree in a relevant scientific field and experience in the pharmaceutical or biotechnology industry.
- Basic business communication skills in English.
- Cross-functional collaboration skills.
- Strong problem-solving capabilities and a proactive, hands-on mindset.
- バイオ医薬品の細胞培養プロセス開発の経験
- 修士号及び製薬・バイオ分野での実務経験
- 英語による基本的な業務コミュニケーション能力
- 部門横断的な協働が可能なコラボレーション能力
- 問題解決能力及び主体的に業務を遂行する姿勢
<歓迎 / Preferred>
- Experience in upstream (cell culture) process development for monoclonal antibodies and other modalities.
- Experience in upstream (cell culture) process scale-up.
- Experience in technology transfer to internal or external manufacturing sites.
- Experience in process validation and/or support for BLA submissions for biologics.
- Ph.D.
- Business communication skills in English and/or experience collaborating with global stakeholders.
- モノクローナル抗体ならびに他のモダリティの細胞培養プロセス開発の経験
- スケールアップの経験
- 社内外製造拠点への技術移転の経験
- バイオ医薬品のプロセスバリデーション、BLA申請の経験
- 博士号
- 英語によるビジネスコミュニケーション能力あるいは海外ステークホルダーとの協働経験
Employment Type
Common to all Job Types
Regular employee
Contract period
Common to all Job Types
Tenured - Non-tenure track
Probationary period absent
Work location
- 300-2698 Ibaraki
- つくば市東光台5丁目2番3号 アステラス製薬 株式会社 東光台研究センター
Compensation
Various systems
- Pay increase system : available
- Bonus : available
- Retirement allowances : available
- Transportation expenses : available
- Retirement age : available
Insurance
- Employees' Health Insurance : available
- Employees' Pension Insurance : available
- Worker's accident insurance : available
- Employment insurance : available
Supplementary explanation of compensation
【給与 / Salary】
①基本給:当人の経歴・技術・技能等を考慮して決定
②裁量労働制の場合:裁量労働手当として職務グレードに応じて50,000~100,000円支給
③フレックスタイム制の場合:月間の所定労働時間を超えて勤務する時間に対して時間外勤務手当を支給
①Base salary: will be decided by the candidate's experience, skill and capability.
②When Discretionary Work System is applied: Discretionary work allowance will be paid.(50,000~100,000yen, based on the Grade)
③When Flextime System is applied: Overtime allowance will be paid for time worked in excess of prescribed working hours.
【昇給 / Salary Raise】
有り
【賞与 / Bonus】
有り
【諸手当 / Allowance】
裁量労働手当、住宅手当、通勤手当 等
Discretionary work allowance, Housing allowance, Commutation allowance, etc.
【勤務時間 / Working Hours】
8:30~17:30(月~木)、8:30~15:45(金)、専門業務型 裁量労働制
裁量労働制の場合、所定労働時間を働いたものとみなす。
8:30~17:30(Mon~Thu)、8:30~15:45(Fri)
Discretionary Work System
【休日 / Holidays】
完全週休2日制(土曜・日曜)、祝日、5月1日、夏季、年末年始
Weekends(Sat and Sun), holidays, May 1st, summer vacation, New Year holidays
【休暇 / Vacation Leave】
年次有給休暇、育児休業制度、介護休業制度 等
Annual paid leave, childcare leave system, nursing care leave system, etc.
【福利厚生 / Welfare】
雇用保険、労災保険、厚生年金、健康保険、共済会制度、社宅制度、持株会制度、財形貯蓄制度 等
Employment Insurance, Industrial Accident Compensation Insurance, Welfare Pension Insurance, Health Insurance, Mutual Aid Association System, Company Housing System, Employee Shareholder Association System, Property Accumulation Savings System
Application Considerations
Number of hired
1 person(s)
Application period
2026/08/19~2027/07/19 Deadline for receipt
Application method
Attached documents
Application Form : Online Submission
Other online application forms
Resume
JREC-IN Portal web application
Not available
E-mail Application
Not available
Recruiting Institution's Web application system
Accept
URL of this job posting
Selection / Notification of result
Selection
CV screening → Aptitude test &First interview →Final interview
*Please be advised that there might be a change in the process.
Notification of result
You will be notified of the results of your application through the system.
For more information about Astellas, please visit our career web site.
Contact details
Astellas Pharma Inc.
Human Resource
アステラス製薬採用窓口
0332443060
yusuke.kibayashi(at)astellas.com
- Please change (at) to @ and send it.

