Johnson & Johnson Posted November 9, 2026

Medical Science Liaison (MSL)

Beerse, Belgium Full time
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Johnson & Johnson 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 Johnson & Johnson, we believe health is everything. Our strength in healthcare innovation empowers us to build a world where complex diseases are prevented, treated, and cured, where treatments are smarter and less invasive, and solutions are personal. Through our expertise in Innovative Medicine and MedTech, we are uniquely positioned to innovate across the full spectrum of healthcare solutions today to deliver the breakthroughs of tomorrow, and profoundly impact health for humanity. Learn more at jnj.com .

As guided by Our Credo, Johnson & Johnson is responsible to our employees who work with us throughout the world. We provide an inclusive work environment where each person is considered as an individual. At Johnson & Johnson, we respect the diversity and dignity of our employees and recognize their merit.

Job Function:

Medical Affairs Group

Job Sub Function:

Medical Science Liaison

Job Category:

Scientific/Technology

All Job Posting Locations:

Beerse, Antwerp, Belgium, Diegem, Flemish Brabant, Belgium

Job Description:

Medical Science Liaison (MSL), located in Belgium

Field-based role (Belgium and Luxembourg)

Full time

Job Description:

Johnson & Johnson Innovative Medicine BeLux is recruiting for a Medical Science Liaison (MSL), located in Belgium.

In this exciting role as MSL within our Medical Affairs (MAF) BeLux team you engage with Leading Specialists and other healthcare professionals in high-quality, non-promotional scientific exchange. You provide fair, balanced and objective scientific information and education, discuss our products and the supporting evidence, and help enable the right treatment for the right patient at the right time.

You will build scientific relationships, identify medical insights and bring those insights back into our Medical Affairs and Core Value Team strategy. Your work contributes to the Medical Affairs Plan and to our short- and long-term company goals. All MSL interactions are non-promotional.

Your scope may evolve with business needs. You may work across therapeutic areas, products or territories within BeLux. This means quickly getting up to speed on new science, data and stakeholder networks while ensuring continuity in existing relationships.

This is a field-based role, within Belgium and Luxembourg, with 70–80% of your time spent in the field. You will work closely with Medical Affairs colleagues and cross-functional partners and report to the Medical Therapeutic Area Lead (MTAL).

Key Responsibilities:

Drive scientific exchange and generate insights. Prepare and lead interactions with Leading Specialists. Proactively and reactively discuss relevant scientific information in line with healthcare compliance guidelines, drive scientific alignment and identify actionable medical insights. Bring these insights back into Medical Affairs strategy, tactical plans and integrated account planning.

Support data, information and evidence generation. Respond to unsolicited scientific questions and support clinical research, from PI/site selection and study feasibility to site engagement and issue resolution for R&D clinical trials and Medical Affairs studies, as appropriate. Contribute to real-world evidence generation, patient-value initiatives, early-access and risk-management programs, as well as customer support requests such as educational grants, and investigator-initiated studies.

Bring medical education to life from start to finish. Identify educational needs, define concepts and objectives, engage collaborators and speakers, plan and deliver compliant medical education initiatives, and evaluate their impact.

Collaborate and deliver. Work closely with Medical Affairs and cross-functional partners. Set priorities, take ownership of your work and continue developing your expertise. Ensure that all activities comply with applicable legal, HCBI, safety-reporting, company-policy and SOP requirements.

Qualifications

Education:

Scientific degree : Medical doctor, pharmacist or degree in life sciences (with MD/PhD being an additional asset)

Experience and Skills:

Scientific and clinical knowledge to quickly understand new disease areas, compounds, clinical trial designs and complex medical data.

Can translate data into relevant, balanced scientific discussions with healthcare professionals.

Adapt quickly to different therapeutic areas, products, stakeholder networks and territories as business needs evolve.

Can build effective relationships with internal and external partners and maintain a strong customer focus and business insight.

Understands the healthcare environment and identify relevant opportunities for Medical Affairs.

Understand clinical research, clinical trial execution and Good Clinical Practice.

Work effectively across functions while taking ownership of your own priorities and activities.

Act proactively and manage your work independently, with a clear focus on delivery.

Work with integrity and follow J&J Credo values, applicable regulations and HCBI guidelines.

Other Requirements

You are fluent in Dutch, French and English, both spoken and written, to support stakeholders across BeLux.

The role involves 70–80% travel within Belgium and Luxembourg and requires a valid driver's licence.

Ready to make an impact?

If you want to leave your personal mark and be valued for who you are, Johnson & Johnson offers an unusual experience to professionals looking for an opportunity to work with hardworking people who share your real passion for caring in an environment that empowers you to drive your own career and where you feel you can bring your whole self to work.

We provide you an environment to fulfil your career aspirations as well as promoting your physical and mental wellbeing. You will receive a competitive compensation and benefits package as well as benefits that can be tailored to what is valuable to you throughout different stages of your life.

Johnson & Johnson is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, age, national origin, disability, protected veteran status or other characteristics protected by federal, state or local law. We actively seek qualified candidates who are protected veterans and individuals with disabilities as defined under VEVRAA and Section 503 of the Rehabilitation Act.

Johnson & Johnson is committed to providing an interview process that is inclusive of our applicants’ needs. If you are an individual with a disability and would like to request an accommodation, external applicants please contact us via https://www.jnj.com/contact-us/careers, internal employees contact AskGS to be directed to your accommodation resource.

Required Skills:

Preferred Skills:

Analytical Reasoning, Analytics Dashboards, Clinical Experience, Coaching, Communication, Competitive Landscape Analysis, Cross-Functional Collaboration, Data Gathering and Analysis, Detail-Oriented, Digital Culture, Digital Literacy, Interpersonal Influence, Market Research, Medical Affairs, Medical Communications, Medical Compliance, Problem Solving, Scientific Research, Stakeholder Engagement, Strategic Thinking, Technical Credibility, Technologically Savvy

The anticipated base pay range for this position is:

€63,300.00 - €99,015.00

Benefits:

In addition to base pay, we offer the following benefits*: an annual bonus with set target (% of pay) depending on pay grade / location, where the actual amount is based on the employees’ and companies’ performance of the previous calendar year, or sales commissions. Moreover, we offer vacation days, parental leave for a minimum of 12 weeks, bereavement leave, caregiver leave, volunteer leave, well-being reimbursement, programs for financial, physical and mental health. We also offer service anniversary and recognition awards, and subject to the terms of their respective plans, employees - and in some location’s eligible dependents - can participate in several insurance plans. For more information, visit Employee benefits | Supporting well-being & career growth | Johnson & Johnson Careers.

*This is for informative purposes only. Amounts and actual benefits may vary by location and are subject to change.

Job details

Seniority
Not listed
Function
Medical Affairs
Therapeutic area
Not listed
Location
Beerse, Belgium
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 1703 comparable Medical Affairs roles across 183 biopharma companies.

1703Comparable roles tracked
1574Currently active
183Companies hiring similar roles
65Countries represented

Salary context

388 of 1703 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 · 2027 Future Talent Program - Global Medical Affairs - Intern · Merck $39,908/yr – $111,111/yr
Peer group range $75,510 – $454,000 (median $218,069)

Where these roles are based

Top locations among the 1703 comparable roles

United States763
China180
Japan101
Germany69
United Kingdom64
India60

+ 59 more countries

Seniority mix

1051 of 1703 peers have a known seniority level

Senior276
Director260
Manager241
Associate Director86
Associate71
Senior Director38
Intern/Fellow/Postdoc37
Executive/VP26
Principal16

Therapeutic area mix

599 of 1703 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Oncology272
Neuroscience82
Immunology56
Rare Disease52
Cardiovascular / CVRM42
Dermatology & Aesthetics37
Respiratory21
Vaccines & Infectious Disease16
Gastroenterology13
Ophthalmology8

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
Gilead Sciences Belgium BV Brussels, Belgium Associate Director
Same function Same country
40%similar
Sandoz Diegem, Belgium Manager
Same function Same country
40%similar
UCB Anderlecht, Brussels, Belgium Senior
Same function Same country
40%similar
UCB Anderlecht, Brussels, Belgium
Same function Same country
40%similar
Servier BRUSSELS, Belgium Associate
Same function Same country
40%similar
IQVIA Brussels, Belgium Senior
Same function Same country

Notify me about similar jobs

Get an email when we spot other openings like this one – same job function, comparable seniority, roles you'd actually want to see.

Or follow a whole field: get every new Medical Science Liaison job in Belgium, and choose locations and companies.

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%
Assoc Director, Medical Affairs
Gilead Sciences Belgium BV · Brussels, Belgium · Associate Director
Function Therapeutic area Seniority Country
40%
Health Economics & Outcomes Research Senior Expert - Rare Disease
UCB · Anderlecht, Brussels, Belgium · Senior
Function Therapeutic area Seniority Country
40%
(Senior) Consultant Market Access & Health Economics
IQVIA · Brussels, Belgium · Senior
Function Therapeutic area Seniority Country
40%
Medical Scientific Liaison (MSL) – Gastroenterology North
AbbVie · Wavre, Wallonia · Seniority not listed
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.