Medical Science Liaison - Oncology
About this opportunity
Career Category
Medical Affairs
Job Description
Medical Science Liaison (MSL) – Oncology
Sofia, Bulgaria | Field-Based Position
About the Role
We are seeking a highly motivated Medical Science Liaison (MSL) to join our Oncology Medical Affairs team in Bulgaria.
As a field-based scientific expert, you will serve as a key medical partner to oncology healthcare professionals, academic experts, and healthcare institutions across Bulgaria. You will be responsible for building scientific partnerships, facilitating evidence-based discussions, generating medical insights, and supporting initiatives that ultimately improve patient care.
This position is based in Sofia and includes responsibility for key oncology centers throughout Bulgaria, requiring regular travel within the country.
What You Will Do
Scientific Leadership
Serve as the trusted scientific expert for external stakeholders.
Deliver high-quality scientific exchange on disease areas, clinical data, treatment guidelines, and emerging evidence.
Provide timely, balanced, and compliant responses to medical inquiries.
Support scientific understanding of current and future treatment approaches.
Stakeholder Engagement
Develop strategic relationships with KOLs, investigators, and healthcare decision-makers.
Create and execute stakeholder engagement plans aligned with medical priorities.
Facilitate scientific discussions through face-to-face, virtual, and group interactions.
Support scientific advisory boards and medical education initiatives.
Medical Insights & External Environment
Capture and communicate actionable medical insights.
Identify trends, unmet clinical needs, and opportunities for scientific collaboration.
Contribute external perspectives to Medical Affairs planning and execution.
Maintain awareness of relevant scientific and healthcare developments.
Research & Evidence Generation
Support company-sponsored and investigator-initiated research activities.
Contribute to discussions regarding study opportunities and feasibility assessments.
Support generation of real-world evidence and scientific publications where appropriate.
Internal Collaboration
Collaborate with Medical Affairs, Clinical Research, Regulatory, Market Access, and other relevant functions.
Provide scientific support to cross-functional initiatives.
Act as a trusted medical partner within the organization.
What we are looking for
Essential Qualifications
MD, PharmD, PhD, MSc, or comparable advanced scientific degree.
Scientific background in oncology, hematology, medicine, pharmacy, or life sciences.
Strong ability to critically analyze and communicate clinical data.
Excellent interpersonal and scientific communication skills.
High degree of integrity, professionalism, and compliance awareness.
Ability to work independently in a field-based role.
Fluent Bulgarian and English, with the ability to communicate scientific information effectively in both written and verbal formats.
Preferred Qualifications
Previous Medical Science Liaison experience.
Oncology and/or hematology expertise.
Experience interacting with KOLs and healthcare institutions.
Knowledge of clinical research methodology and evidence generation.
Experience in the pharmaceutical or biotechnology industry.
. Salary Range
35,022.55 EUR - 47,383.45 EUR
Job details
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 129 biopharma companies.
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.
Where these roles are based
Top locations among the 924 comparable roles
+ 52 more countries
Seniority mix
502 of 924 peers have a known seniority level
Therapeutic area mix
325 of 924 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden
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.
Open in 3 locations
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.
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.