Regeneron Japan KK Posted August 5, 2026

Mgr Field Medical Affairs

Tokyo, Japan Full time
Medical Affairs

Regeneron Japan KK 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

Build our future together:

At Regeneron, we use science and innovation to develop life-changing medicines for people with serious diseases. We are seeking a Manager Medical Science Liaison Oncology Japan Field to join our Global Medical Affairs Field Medical team, supporting our oncology business in Japan in a field-based work mode. In this role, you will deliver scientific engagement and field insights that strengthen Medical Affairs strategy while collaborating with external experts and cross-functional Medical Affairs teams. This position offers the opportunity to contribute to a fast-growing, science-driven organization making a meaningful difference to patients worldwide.

When & where:

Japan

Work model: Field-based

Discover your role:

Deliver compliant scientific engagement with external oncology experts.

Gather and communicate field insights from engagement, congresses, and clinical practice.

Own assigned field medical activities with independent judgment.

Maintain expert mapping, investigator targets, and engagement priorities.

Provide oncology disease-state education to practitioners and researchers.

Support evidence generation, medical education, scientific communication, and Medical Affairs projects.

Contribute to investigator-initiated studies and clinical trial-site activities.

You build trusted relationships while acting with scientific integrity.

This role requires:

MD, PhD, or PharmD preferred; scientific bachelor's degree with substantial MSL experience may be considered.

Oncology and/or clinical trial experience.

Strong oncology and solid tumor expertise; lung cancer and/or immuno-oncology experience preferred.

2+ years in pharmaceutical industry, clinical research, clinical practice, Medical Affairs, or related scientific roles.

Ability to independently conduct scientific engagement and field insight gathering.

Strong scientific communication and presentation skills with external and internal stakeholders.

Experience building relationships in academic and clinical-practice settings.

Experience working in matrix organizations; partnership experience is valued.

Understanding of and adherence to non-promotional Field Medical compliance requirements.

Fluency in Japanese and English.

Willingness to travel approximately 40–60%.

Experience with immuno-oncology, targeted, antibody-based, or novel oncology therapies preferred.

Prior Field Medical or Medical Science Liaison experience in oncology preferred.

Experience translating external scientific discussions into actionable insights preferred.

Willingness to contribute beyond field engagement across broader Medical Affairs activities.

Strong teamwork, ownership, integrity, flexibility, resourcefulness, and independent problem-solving skills.

Does this sound like you? Apply now to take your first step towards living the Regeneron Way! We are committed to building a workplace with an inclusive culture. Regeneron is an equal opportunity employer and all  qualified applicants will receive consideration for employment without regard to race, color, religion or belief (or lack thereof), sex, sexual orientation, gender identity or expression, gender reassignment, marital or civil partnership status, civil status, pregnancy or parental status, age, disability, nationality, citizenship status, ethnic or national origin, membership of the Traveler community, familial status, genetic information, military or veteran status, or any other characteristic protected under applicable law. Where required, we will provide reasonable accommodation to applicants with known disabilities or chronic illnesses during the recruitment process, unless such accommodation would impose undue hardship.

Where necessary, we disclose salary ranges for roles in all countries in which we operate.  The final offer will be determined within the relevant range based on the country of employment, specific role level, and your skills and experience. In some countries, collective bargaining agreements (CBAs) may apply and influence certain elements of pay or benefits.  Regeneron offers a competitive and comprehensive total rewards package which may include, depending on country and role: annual bonuses or other incentive plans, equity awards, pension or retirement benefits, 401(k) company match, health and wellness programs, fitness centers, insurance benefits (e.g. medical, dental, vision, life and disability), paid time off, and family support benefits. For additional information about Regeneron benefits in the U.S., please visit https://careers.regeneron.com/en/working-at-regeneron/total-rewards/ . For other locations, additional information will be provided during the recruitment process.  If you have any questions, please speak with your recruiter.

Please be advised that at Regeneron, we believe we do our best work when we are together. For that reason, many roles are required to be performed on‑site. Please speak with your recruiter and hiring manager for more information about on‑site expectations for your role and location.

As part of the recruitment process, certain background checks may be conducted in accordance with the laws of the country where the position is based. The purpose of such checks is to verify certain information prior to the commencement of employment such as identity, right to work and educational qualifications.

For jobs in Canada: this posting is for an existing position.

Job details

Seniority
Not listed
Function
Medical Affairs
Therapeutic area
Not listed
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

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

Oncology114
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.

40%similar
AstraZeneca Minato-ku, Tokyo, Japan Director
Same function Same country
40%similar
Amgen K.K. Tokyo, Japan
Same function Same country
40%similar
Amgen K.K. Tokyo, Japan Senior
Same function Same country
40%similar
Amgen K.K. Tokyo, Japan Manager
Same function Same country
40%similar
Amgen K.K. Tokyo, Japan Associate
Same function Same country
40%similar
Amgen K.K. Tokyo, Japan Associate
Same function 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.

40%
【AstraZeneca】【Medical】Health Economic and Outcomes Research Director, Medical EOR
AstraZeneca · Minato-ku, Tokyo, Japan · Director
Function Therapeutic area Seniority Country
40%
Medical Advisor_ Cardiovascular (Manager)
Amgen K.K. · Tokyo, Japan · Manager
Function Therapeutic area Seniority Country
40%
Medical Science Liaison for lung cancer
Amgen K.K. · Tokyo, Japan · Seniority not listed
Function Therapeutic area Seniority Country
40%
Director / Associate Director, Medical Scientist
Gilead Sciences K.K. · Tokyo, Japan · Associate 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.