Senior Medical Science Liaison in Hemel Hempstead

We are seeking a highly experienced, senior‑level Medical Science Liaison (MSL) to join our growing Medical Affairs team. This is a pivotal, field‑based role covering the UK and Ireland, requiring a seasoned professional with strong scientific credibility, independence, and strategic maturity. The Senior MSL will serve as a scientific bridge between the company and key healthcare professionals — including dermatologists, plastic surgeons, aesthetic practitioners (doctors, dentists, pharmacists, nurses) and other relevant allied healthcare professionals — building trusted, peer‑to‑peer relationships grounded in clinical evidence and advanced scientific exchange.

In addition to traditional MSL responsibilities, this role carries a clear emphasis on face‑to‑face scientific education and training, as well as a defined remit to support commercial colleagues with scientific expertise and to manage off‑label medical enquiries in a fully compliant and ethical manner.

Accountabilities and related performance indicators

• Scientific Exchange & Medical Education
  • Develop and maintain peer‑level scientific relationships with Key Opinion Leaders (KOLs), aesthetic physicians, nurses, and allied healthcare professionals across the UK and Ireland.
  • Deliver tailored, evidence‑based presentations, clinical updates, and educational programmes to HCPs in 1:1 and group settings.
  • Represent the company at national and international medical aesthetics congresses, symposia, and advisory boards.
  • Provide strategic input into scientific content, speaker selection, and briefing for educational events and congress activities.
  • Maintain up‑to‑date scientific and competitive knowledge by continuously reviewing relevant literature and market developments.
  • Document and track HCP interactions, scientific topics discussed, and key insights through approved CRM systems or available platforms.
  • Track and report agreed activity metrics (e.g. scientific interactions, topics discussed, response timelines) in approved systems, in line with compliance requirements.
  • Identify, develop and manage relationships with emerging KOLs and thought leaders in the aesthetics space.
  • Support clinical investigators with investigator‑initiated trials (IIT) in compliance with relevant SOPs and regulations.
• Sales Team Support
  • Partner with the commercial sales team to provide clinical and scientific support that enhances their credibility with HCP customers.
  • Deliver scientific training to the field sales team to deepen product knowledge and understanding of clinical evidence.
  • Attend customer‑facing meetings alongside account managers when scientific expertise is required (within ABPI and applicable Irish code guidelines).
  • Provide product and competitor landscape insights to the sales and marketing teams to inform strategy.
  • Develop and review clinical resources, FAQs, and objection‑handling materials in collaboration with Medical Affairs and Marketing colleagues.
  • Assist in the development of speaker programmes and peer‑to‑peer educational events.
• Off-Label Medical Enquiries
  • Act as a point of contact for managing unsolicited off‑label medical enquiries from HCPs in a fully compliant and documented manner.
  • Work closely with the Medical Information and Regulatory Affairs colleagues to ensure responses are accurate, timely, and appropriately referenced.
  • Maintain meticulous records of all off‑label enquiries and responses in accordance with relevant SOPs and ABPI/IPHA codes of practice.
  • Proactively identify trends in off‑label enquiries to inform Medical Affairs strategy and evidence generation priorities.
  • Provide guidance to colleagues on the appropriate handling of off‑label questions, ensuring full compliance with UK and Irish legislation.
• Medical Affairs & Cross‑functional Collaboration
  • Contribute to the development and execution of the UK & Ireland Medical Affairs plan.
  • Collaborate with the wider Medical Affairs team (including Medical Information, PV, Regulatory, Medical Communications and Professional Relations) on product lifecycle activities.
  • Provide field medical insights and intelligence to inform publication strategy, evidence generation, and market access activities.
  • Support the review and approval of promotional materials through the medical, legal, and regulatory review process.
  • Contribute to pharmacovigilance activities by ensuring adverse events are captured and reported appropriately.
  • Systematically capture, document, and communicate structured field insights through approved systems to ensure timely and consistent input into medical and cross‑functional strategy.

Key Working Relationships

• Aesthetics medical affairs colleagues (MSL colleagues within Merz Aesthetics, Scientific Advisors, Medical Information) to work as a team and deliver the Aesthetics medical plan.
• Aesthetics commercial colleagues in marketing and sales to ensure alignment on customer interactions.
• Given therapy area KOLs to act as partners in the delivery of project to achieve better outcomes for patients.
• Global and Regional Aesthetics colleagues to align on research and global medical projects.

Qualifications, experience and knowledge requirements

Essential Qualifications & Experience

• Advanced life sciences degree (PhD, PharmD, MBChB, MD, or equivalent); candidates with a Master’s and strong MSL experience will be considered.
• Minimum 5+ years’ experience in an MSL or equivalent senior Medical Affairs field role within pharmaceuticals, medical devices, or medical aesthetics.
• Demonstrable experience in a medical aesthetics, dermatology, plastic surgery, or closely related specialty.
• Strong track record of building and maintaining KOL relationships.
• Experience managing off‑label enquiries in a regulated UK/Ireland environment.
• In‑depth knowledge of ABPI Code of Practice and Irish IPHA Code requirements.
• Experience supporting sales teams with scientific and clinical content within compliant frameworks.

Desirable Qualifications & Experience

• Clinical background in dermatology, aesthetics, or related discipline.
• Prior involvement in advisory boards, clinical studies, or publication activities.
• Working knowledge of the aesthetics competitive landscape in the UK and Ireland.
• Experience in training or coaching sales or medical teams.

Skills & Competencies

• Excellent scientific communication and presentation skills — ability to translate complex clinical data for diverse audiences.
• Strong interpersonal and relationship‑building skills with a collaborative, credible approach.
• High degree of integrity, self‑motivation, and professional accountability.
• Commercially aware with the ability to balance scientific independence with business objectives.
• Outstanding attention to detail, particularly in documentation and compliance.
• Proficient in CRM platforms and Microsoft Office suite.
• Full UK driving licence required; willingness to travel across the UK and to Ireland.

Compliance & Regulatory Framework

All activities undertaken in this role must comply with:

• ABPI Code of Practice for the Pharmaceutical Industry (UK)
• IPHA Code of Practice (Ireland)
• Medicines and Healthcare products Regulatory Agency (MHRA) guidelines
• Health Products Regulatory Authority (HPRA) requirements (Ireland)
• Company SOPs, medical affairs policies, and applicable data protection legislation (UK GDPR / DPIA framework)

The MSL must maintain a clear separation between medical and promotional activities at all times and is expected to uphold the highest standards of medical ethics and professionalism.