Gilead Sciences K.K. Posted January 7, 2026

Medical Scientist _Oncology

Tokyo, Japan Full time
Medical Affairs Oncology

Gilead Sciences K.K. is the source of truth for this posting and owns the application process. We surface normalized context and market comparison you won't find on the original listing.

About this opportunity

At Gilead, we’re creating a healthier world for all people. For more than 35 years, we’ve tackled diseases such as HIV, viral hepatitis, COVID-19 and cancer – working relentlessly to develop therapies that help improve lives and to ensure access to these therapies across the globe. We continue to fight against the world’s biggest health challenges, and our mission requires collaboration, determination and a relentless drive to make a difference.

Every member of Gilead’s team plays a critical role in the discovery and development of life-changing scientific innovations. Our employees are our greatest asset as we work to achieve our bold ambitions, and we’re looking for the next wave of passionate and ambitious people ready to make a direct impact.

We believe every employee deserves a great leader. People Leaders are the cornerstone to the employee experience at Gilead and Kite. As a people leader now or in the future, you are the key driver in evolving our culture and creating an environment where every employee feels included, developed and empowered to fulfil their aspirations. Join Gilead and help create possible, together.

Job Description

Position Description:

As the Medical Scientist, you are responsible to provide scientific/medical guidance throughout product life cycle to the stakeholders in collaboration and close communication with the Japan Medical Affairs members, global/Asia Medical Affairs and other key functions.

Knowledge, Experience & Skills:

Primary responsibilities are as follow:

Establish effective working relationships with Oncology KOLs and other key external stakeholders and be recognized as an innovative and value partner in improving quality of care for oncology patients.

Manage regular communication with Oncology KOLs and clinical trial investigators to provide medical guidance and more extensive background, additional data, or answers to questions in response to issues that arise relative to commercial, scientific or data needs.

Develop and execute medical activities, such as medical education, data generation, patient centric activities in alignment with Plan Of Action (POA) and other strategic priorities in closely communicate with the global MA.

Attend major conferences and helps coordinate medical affairs activities (ex. advisory board meeting) and may present to external audience.

Maintain clinical, scientific, and technical expertise in Oncology area.

Manage his/her projects to completion, anticipating obstacles and difficulties that may arise, resolving them in a collaborative manner.

Ensure that all interactions and activities in Japan adhere to corporate compliance guidance/rules and industry code of conduct and responses to unsolicited requests for medical/scientific information

Minimum Education and Basic Qualifications:

Must have strong industry experience (+3 yrs).

The individual must demonstrate strong written and verbal communication skills both in Japanese and English along with excellent judgment and ability to work in a team environment.

Hands-on involvement is a must (effective use of external resources)

Excellent learning agility

Preferred Qualifications:

Advanced degree in life science (PhD, Pharm D, MD) with clinical and research experience in Oncology

Previous experiences in medical, MSL or R&D in Oncology.

Demonstrated leadership in ambiguous situations.

Project Management Skills.

People Leader Accountabilities (System Generated)

Create Inclusion - knowing the business value of diverse teams, modeling inclusion, and embedding the value of diversity in the way they manage their teams.

Develop Talent - understand the skills, experience, aspirations and potential of their employees and coach them on current performance and future potential. They ensure employees are receiving the feedback and insight needed to grow, develop and realize their purpose.

Empower Teams - connect the team to the organization by aligning goals, purpose, and organizational objectives, and holding them to account. They provide the support needed to remove barriers and connect their team to the broader ecosystem.

Equal Opportunities

As an equal opportunity employer, Gilead Sciences is committed to a diverse workforce. Employment decisions regarding recruitment and selection will be made without discrimination based on race, color, religion, national origin, gender, age, sexual orientation, physical or mental disability, genetic information or characteristic, gender identity and expression, veteran status, or other non-job-related characteristics or other prohibited grounds specified in applicable laws. It is also Gilead’s policy to comply with all applicable laws respecting consideration of unemployment status in making hiring decisions.

――――――――――――――

If this is not the right move for you now but remain interested in a career at Gilead Sciences please connect with us via our talent community: https://gilead.avature.net/Gilead

About Gilead:

Gilead Sciences, Inc. is a research-based biopharmaceutical company that discovers, develops and commercializes innovative medicines in areas of unmet medical need. With each new discovery and investigational drug candidate, we seek to improve the care of patients living with life-threatening diseases around the world. Gilead’s therapeutic areas of focus include HIV/AIDS, liver diseases, cancer and inflammation, and serious respiratory and cardiovascular conditions.

For Current Gilead Employees and Contractors:

Please apply via the Internal Career Opportunities portal in Workday.

Job details

Seniority
Not listed
Function
Medical Affairs
Therapeutic area
Oncology
Location
Tokyo, Japan
Employment type
Full time

How this role compares

Computed from every other active Medical Affairs role in our database, not just this employer's listings.

We currently track 924 comparable Medical Affairs roles across 130 biopharma companies.

924Comparable roles tracked
799Currently active
130Companies hiring similar roles
58Countries represented

Salary context

175 of 924 peers report a salary range (USD, annualized)

Peers share this role's job function. This posting doesn't list a seniority level, so peers aren't narrowed by seniority either -- the range below may span more levels than usual.

This roleSubject Not listed on this posting
Lowest disclosed · Clinical Coordinator · Pfizer $79,400/yr – $132,400/yr
Peer group range $105,900 – $458,800 (median $232,750)

Where these roles are based

Top locations among the 924 comparable roles

United States379
China's Mainland69
Japan60
China57
India50
Germany40

+ 52 more countries

Seniority mix

502 of 924 peers have a known seniority level

Director148
Manager125
Senior97
Associate55
Associate Director39
Senior Director20
Executive/VP11
Principal5
Intern/Fellow/Postdoc2

Therapeutic area mix

325 of 924 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Oncology113
Immunology52
Neuroscience35
Cardiovascular / CVRM34
Respiratory21
Vaccines & Infectious Disease21
Rare Disease21
Dermatology & Aesthetics20
Gastroenterology4
Ophthalmology4

Similar opportunities

The closest matches from our peer group, ranked by how similar they are, not how well you'd qualify for them -- treat this as market context, not a guaranteed shortlist; a weak match is labeled as one below.

80%similar
Amgen K.K. Tokyo, Japan
Same function Same therapeutic area Same country
80%similar
Gilead Sciences K.K. Tokyo, Japan Associate Director
Same function Same therapeutic area Same country
80%similar
Pfizer Japan Inc. Tokyo, Japan Associate
Same function Same therapeutic area Same country
80%similar
Pfizer Japan Inc. Tokyo, Japan Manager
Same function Same therapeutic area Same country
80%similar
AstraZeneca Minato-ku, Tokyo, Japan Associate
Same function Same therapeutic area Same country
80%similar
AstraZeneca Minato-ku, Tokyo, Japan
Same function Same therapeutic area Same country

How we calculate "similar"

No black box, no LLM guesswork: a deterministic score built from four normalized attributes. Here's this role's own peer group at different match levels, so you can see the mechanism, not just the result.

Every comparison starts from the same 100-point budget: 25 for working in the same function, 40 for the same therapeutic area, 20 for the same or adjacent seniority, 15 for the same country. A dimension we can't confirm on both sides contributes nothing, never a guess, never a free pass.

80%
Medical Science Liaison for lung cancer
Amgen K.K. · Tokyo, Japan · Seniority not listed
Function Therapeutic area Seniority Country
80%
[MA] Lung Cancer MAS team, ONC Field MAS [Manager/Staff]
Pfizer Japan Inc. · Tokyo, Japan · Manager
Function Therapeutic area Seniority Country
65%
Early Development Lead Medical Director, Non-oncology
Roche · Shanghai, Shanghai, China's Mainland · Director
Function Therapeutic area Seniority Country
65%
Scientific Director / Senior Medical Director, Multiple Myeloma (International Medical Affairs)
AbbVie · Mettawa, IL · Director
Function Therapeutic area Seniority Country
Unmatched or unknown dimensions score exactly the same: 0 points, never a partial guess. A role we know almost nothing about beyond its function bottoms out at 25%; it never inflates to 100% just because there's little to compare against. Seniority uses a defined ladder (Associate → Manager → Associate Director → Senior → Principal → Director → Senior Director → Executive/VP) so "Director" and "Senior Director" count as adjacent, but "Director" and "Executive/VP" do not.