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Job description
About Celldex
Celldex is pioneering new horizons in immunology to deliver life-changing therapies. We are relentless in our pursuit of novel antibody-based treatments that engage the human immune system and directly impact critical pathways in allergic, inflammatory, and autoimmune diseases.
We are building a world-class Medical Affairs organization to support late-stage development and launch for the company’s immunology asset. Our culture is entrepreneurial, fast-moving, and deeply mission-driven—where passionate individuals can make a meaningful impact.
Why Join Celldex?
Opportunity to build and shape the Field Medical organization at a pivotal stage
Direct impact on launch readiness and execution for a late-stage immunology asset
Highly visible leadership role with enterprise influence
Entrepreneurial culture where leaders can build, innovate, and drive change
Mission-driven organization focused on improving the lives of patients with serious diseases
Overview
The Executive Medical Science Liaison will prioritize contacts with key opinion leaders (KOLs), healthcare providers, and clinical investigators within an assigned U.S. region, providing advanced scientific exchange and generating actionable insights.
This role serves as a field-based extension of the Medical Affairs and Evidence Generation (MA&EG) organization , requiring a highly experienced professional who operates with independence, accountability, and execution focus in a fast-paced, performance-driven biotech environment.
The Associate Director is expected to deliver complex, data-driven scientific discussions , synthesize meaningful insights from the field, and navigate real-world clinical dynamics while maintaining a strong focus on regional ownership and high-impact engagement .
The role maintains and develops relationships across a range of stakeholders, including key opinion leaders, investigators, and as appropriate, large group practices and private equity-backed dermatology organizations , contributing to a broader understanding of evolving clinical and practice dynamics.
Responsibilities
Enhancing knowledge / scientific exchange:
Engages in advanced Medical-to-Medical scientific discussions including disease awareness, clinical data interpretation, and evolving treatment paradigms.
Demonstrates deep expertise in immunology and/or dermatology and communicates complex or emerging data clearly and effectively. Handles challenging or skeptical stakeholders with strong scientific rationale. Establishes credibility as a trusted scientific expert and resource internally and externally. Supports medical training for internal stakeholders as needed.
Adapts scientific exchange to diverse stakeholders, including high-volume community practices and organizational decision-influencers , while maintaining scientific integrity.
Insight gathering:
Responsible for synthesizing, communicating and proactively sharing actionable scientific insights from field engagement. Identifies trends in clinical practice, perceptions of data, and factors that influence treatment decisions.
Maintains strong alignment with home-office MA&EG partners, including HEOR and PRO , ensuring insights are shared in a way that is relevant, decision-oriented, and actionable . Contributes to improving overall insight quality by identifying key themes, gaps, and emerging priorities.
Builds and maintains relationships with clinicians, investigators, and regional experts, including those within large group practices and private equity-backed dermatology organizations . Identifies trends in clinical practice, perceptions of data, and practical considerations influencing treatment decisions. Provides clear, concise, and decision-relevant insights reflective of real-world treatment dynamics.
Regional ownership / execution:
Responsible for planning and executing field activities within assigned territory. Prioritizes high-value engagements and demonstrates strong judgement in allocating time and resources.
Operates with a high level of accountability in a lean, fast-paced environment. Maintains a consistent field presence with disciplined execution and adaptability to changing priorities.
Cross-functional engagement
Establishes and maintains strong working relationships with home-office stakeholders across MA&EG, including HEOR, PRO, and other functional partners.
Ensures appropriate involvement of internal stakeholders in KOL and external engagement activities, facilitating alignment between field insights and organizational priorities.
Supports the field-based needs of Commercial (Marketing, Field Sales) and Market Access teams through compliant, science-based engagement.
Data generation/R&D Support Acts a key scientific liaison between the organization and clinical investigators and study sites , supporting site identification, engagement, and scientific exchange.
Scientific engagement support: Provides scientific support for congresses, advisory boards, and other relevant external engagements. Maintains awareness of scientific literature, emerging research, and competitive landscape.
Acts as a key scientific liaison between the organization and clinical investigators and study sites , supporting site identification, engagement, and scientific exchange.
Supports clinical development efforts through trial awareness, site engagement, and enrollment support , and contributes to Investigator-Initiated Research (IIR) activities as appropriate.
Workstream leadership:
Leads defined field-based workstreams (e.g., congress execution, advisory board support, or regional initiatives), ensuring high-quality execution and alignment with organizational priorities.
Experience elevation / team contribution:
Demonstrates senior field leadership by modeling best practices in scientific engagement, insight generation, and stakeholder management.
Provides onboarding, coaching, and informal mentorship to new and developing MSLs. Serves as a resource for complex or escalated field situations and contributes to overall team effectiveness.
Broader stakeholder engagement (as applicable):
Participates in scientific discussions with larger practices, private equity-backed dermatology groups, health systems, and organizational stakeholders when appropriate.
Demonstrates awareness of factors influencing treatment decisions, including practice-level dynamics, access considerations, and healthcare delivery models .
May contribute to discussions where clinical evidence informs broader decision-making environments (e.g., payer-influenced or decision-support settings ), while maintaining a primary focus on evidence-based scientific exchange and remaining within appropriate compliance boundaries.
Qualifications
Required Skills:
Requires advanced communication skills and the ability to engage in complex, high-level scientific discussions
Requires strong customer-facing, listening, and probing skills
Requires ability to operate independently with minimal oversight
Requires strong prioritization and execution discipline in a fast-paced, performance-driven environment
Requires demonstrated ability to analyze, synthesize, and communicate scientific insights effectively
Requires strong scientific and clinical judgment in interpreting data
Requires adaptability, accountability, and a results-oriented mindset
Self-directed with a proactive, execution-focused approach to work
Good understanding of practice dynamics and evolving healthcare delivery models , including experience engaging with large group practices or similar stakeholders preferred
Must be able to travel approximately 70% including some weekends
Requires strong foundation in clinical trial design, implementation, and interpretation
Education/Experience:
MD, NP, PA, PharmD, or PhD in a life science required
Specialization in Dermatology, Immunology, or Allergy required
Minimum of 5+ years of Medical Science Liaison experience preferred
Demonstrated experience in Immunology and/or Dermatology required
Proven ability to independently manage territory and navigate complex stakeholder interactions
Experience supporting or engaging with clinical investigators and research sites required
Experience working cross-functionally with MA&EG functions (e.g., HEOR, PRO) preferred
Experience supporting clinical development, commercial, or market access engagement preferred
Experience operating in a fast-paced biotech or resource-constrained environment strongly preferred
Compensation Statement
The expected base salary for this position is: $ to $ .
We are committed to compensating employees equitably based on several factors including experience, education, licensure/certifications, skill level, location of the position, and availability of similar talent in a competitive market. Subject to eligibility and applicable plan terms, compensation includes:
base salary
annual discretionary bonus
long term incentive
401(K) plan with employer contribution
health care and other insurance benefits (for employee and family)
paid holidays
vacation
sick days
A summary of our benefits can be found on our careers page
Celldex is proud to be an equal opportunity employer that strives to foster a culture of diversity, equity, and inclusion.
We are committed to promoting a diverse environment through development, recruiting and community outreach.
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Who can apply
Review the original listing for work authorization, qualifications and employer requirements.