Biogen Posted August 6, 2026

(Senior) Medical Science Liaison, Rare Disease - DE, MD, Washington DC, VA, WV, NC

Baltimore, United States Full time
Medical Affairs Rare Disease Senior

Biogen 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

(Senior) Medical Science Liaison, Rare Disease – DE, MD, Washington DC, VA, WV, and NC

About this role

The Medical Science Liaison / Senior Medical Science Liaison role is a part of US Medical Affairs, a strategic partner within Biogen, that helps inform medical practice across our therapeutic areas and pipeline to improve meaningful patient outcomes. The Medical Science Liaison enables critical stakeholder engagement with Key Medical Experts (KMEs) and other healthcare professionals (HCPs) so they understand the clinical and scientific narrative for Biogen’s therapies. Biogen’s priority is to continue to foster and enable a diverse and inclusive workforce – representing age, gender, sexual identity, race, ethnicity, Veterans, and people with disabilities – that reflects the communities where we operate and the patients who we serve.

This territory will cover Delaware, Maryland, Washington DC, Virginia, West Virginia, and North Carolina.  The successful candidate must reside within the boundaries of the territory.

What You Will Do

Be a credible medical/ scientific expert who engages with KME and HCP to increase confidence in making the best clinical decisions pertaining to disease state and Biogen’s products in the near and long term for the benefit of patient care.

Focus on  building deep, strategic, long-term relationships  with internal & external stakeholders to be viewed as a partner rather than transactional.

Be a “partner in the trenches”, be responsive, engage often and be a solutions-driven conduit to leaders in the medical community.

Engage in projects and/or initiatives aligned to US Medical strategy, objectives, and tactics

Be highly accountable  to qualitative and quantitative medical excellence performance goals, standards, and measurements. Deliver against KME engagement plans that add high value by navigating resources at the office in collaboration with field and non-field colleagues.  Capture and report KME/HCP medical insights using Veeva with the highest level of consistency and accuracy to help inform the medical and clinical strategies.

Who You Are

You are a scientific or clinical professional with a passion for science and deep scientific knowledge.  You have a marked curiosity about healthcare and business opportunities.  You keep patients, payers, and physicians top of mind in your daily work and collaborate to solve critical scientific and business challenges.

Required skills

Advanced Scientific or Clinical degree is required; Doctoral (MD, PhD, PharmD, DNP) level degree strongly preferred.

Field Medical Science Liaison experience required.

Candidates must reside within the territory. (DE, MD, Washington DC, VA, WV, NC)

Effective communication: Communicates concisely, confidently, and credibly; Easily understands other points of view and responds appropriately; Listens with empathy to respond to current and future needs and adjust the communication according to the audience.  Bilingual in Spanish and English preferred.

Digital potential: Comfortable using and experimenting with technology; Embraces and optimally utilizes new tools and systems; Demonstrates a willingness and aptitude to learn if not yet well versed.

Accountability: Delivers reliably against goals; Motivated to perform to meet and even exceed metrics and Key Performance Indicators (KPIs). Views metrics and KPIs as a positive opportunity to communicate value to internal stakeholders.

Ethical: Understands rules for industry and is committed to following them for the benefit of patients.

Able to travel at least 60% of the time, including the ability to travel overnight and occasionally on weekends.

Must be 18 years of age or older with a valid driver’s license and an acceptable driving record. Must have authorization and ability to drive a company leased vehicle or rental.

Preferred Skills & Therapeutic Area Specific Skills

Clinical experience and subject matter expertise in Rare Disease, Amyotrophic Lateral Sclerosis, Friedreich Ataxia, and/or Spinal Muscular Atrophy experience preferred.

Why Biogen?

Our Company mission to find therapies for neurological and rare diseases is a unique focus within our industry and this shared purpose is what connects us as a team. We work together to overcome obstacles and to follow the science. We are resilient as we strive to make an impact on our patients’ lives and on changing the course of medicine. Together, we pioneer. Together, we thrive.

Job Level: Management

Additional Information

The base compensation range for this role is: $165,000.00-$221,000.00

Base salary offered is determined through an analytical approach utilizing a combination of factors including, but not limited to, relevant skills & experience, job location, and internal equity.

Regular employees are eligible to receive both short term and long-term incentives, including cash bonus and equity incentive opportunities, designed to reward recent achievements and recognize your future potential based on individual, business unit and company performance.

In addition to compensation, Biogen offers a full and highly competitive range of benefits designed to support our employees’ and their families physical, financial, emotional, and social well-being ; including, but not limited to:

Medical, Dental, Vision, & Life insurances

Fitness & Wellness programs including a fitness reimbursement

Short- and Long-Term Disability insurance

A minimum of 15 days of paid vacation and an additional end-of-year shutdown time off (Dec 26-Dec 31)

Up to 12 company paid holidays + 3 paid days off for Personal Significance

80 hours of sick time per calendar year

Paid Maternity and Parental Leave benefit

401(k) program participation with company matched contributions

Employee stock purchase plan

Tuition reimbursement of up to $10,000 per calendar year

Employee Resource Groups participation

Why Biogen?

We are a global team with a commitment to excellence, and a pioneering spirit. As a mid-sized biotechnology company, we provide the stability and resources of a well-established business while fostering an environment where individual contributions make a significant impact. Our team encompasses some of the most talented and passionate achievers who have unparalleled opportunities for learning, growth, and expanding their skills. Above all, we work together to deliver life-changing medicines, with every role playing a vital part in our mission. Caring Deeply. Achieving Excellence. Changing Lives.

At Biogen, we are committed to building on our culture of inclusion and belonging that reflects the communities where we operate and the patients we serve. We know that diverse backgrounds, cultures, and perspectives make us a stronger and more innovative company, and we are focused on building teams where every employee feels empowered and inspired.  Read on  to learn more about Biogen.

All qualified applicants will receive consideration for employment without regard to sex, gender identity or expression, sexual orientation, marital status, race, color, national origin, ancestry, ethnicity, religion, age, veteran status, disability, genetic information or any other basis protected by federal, state or local law. Biogen is an E-Verify Employer in the United States.

Job details

Seniority
Senior
Function
Medical Affairs
Therapeutic area
Rare Disease
Location
Baltimore, United States
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 140 comparable Senior Medical Affairs roles across 44 biopharma companies.

140Comparable roles tracked
118Currently active
44Companies hiring similar roles
18Countries represented

Salary context

37 of 140 peers report a salary range (USD, annualized)

Peers share this role's job function and a matching or adjacent seniority level -- not necessarily the same therapeutic area or country.

This roleSubject Not listed on this posting
Lowest disclosed · Senior Medical Writer - Vaccine · Sanofi Vaccines US Inc. $122,250/yr – $176,583/yr
Peer group range $149,417 – $258,000 (median $181,500)

Where these roles are based

Top locations among the 140 comparable roles

United States74
India12
China11
Taiwan10
Japan8
South Korea5

+ 12 more countries

Seniority mix

140 of 140 peers have a known seniority level

Senior96
Associate Director39
Principal5

Therapeutic area mix

60 of 140 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Oncology25
Neuroscience7
Rare Disease6
Dermatology & Aesthetics6
Vaccines & Infectious Disease6
Cardiovascular / CVRM5
Immunology3
Respiratory1
Ophthalmology1

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.

100%similar
Horizon Therapeutics Services LLC New Orleans, United States Senior
Same function Same therapeutic area Same seniority Same country
100%similar
Amgen Inc. Baltimore, United States Senior
Same function Same therapeutic area Same seniority Same country
100%similar
Amgen Inc. San Francisco, United States Senior
Same function Same therapeutic area Same seniority Same country
90%similar
Biogen Cambridge, United States Associate Director
Same function Same therapeutic area Adjacent seniority Same country
85%similar
Amgen Limited Cambridge, United Kingdom Senior
Same function Same therapeutic area Same seniority
85%similar
AstraZeneca Jeddah, Saudi Arabia Senior
Same function Same therapeutic area Same seniority

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.

100%
Sr. Medical Science Liaison - Uncontrolled Gout - Rare Disease - AR, LA, MS
Horizon Therapeutics Services LLC · New Orleans, United States · Senior
Function Therapeutic area Seniority Country
90%
Associate Director, Medical Strategy & Operations Lead - Rare Disease (US Medical Affairs)
Biogen · Cambridge, United States · Associate Director
Function Therapeutic area Adjacent seniority Country
60%
MSL/Sr. MSL, Lung Solid Tumor (Southern California and Las Vegas, NV)
AbbVie · Los Angeles, CA · Senior
Function Therapeutic area Seniority Country
60%
MSL/Sr. MSL Oncology, Multiple Myeloma (New England)
AbbVie · Boston, MA · Senior
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.