Medical Science Liaison

Ultragenyx Pharmaceutical Inc.

Ultragenyx Pharmaceutical Inc.

São Paulo, SP, Brazil · Brazil · Mexico City, Mexico

Posted on May 22, 2026
Why Join Us?
Be a hero for our rare disease patients
At Ultragenyx, we fundamentally believe that taking real impactful action to care for the needs of patients and our people is always the right thing to do. To achieve this goal, our vision is to lead the future of rare disease medicine. For us, this means going where other biopharma companies won’t go – challenging the status quo and creating a new model that advances our field so more patients and caregivers can benefit from life-changing treatments. We do this by following the science, applying a novel rapid development approach, making innovative medicines at fair and reasonable prices, and creating a collaborative ecosystem to reach patients in ways that are most meaningful for them.
Our commitment and care for patients extends to our people, so culture is an essential cornerstone for Ultragenyx. We remain continuously focused on creating a supportive and inclusive environment of profound learning and growth – so employees can thrive in all areas of their lives, in and outside of work. Ultimately, we want to be an organization where we would be proud for our family, friends and children to work.
If you want to have a meaningful impact, do the best work of your career, and grow a lot, both professionally and personally, come join our team.

Position Summary:

ultrafocused – Work together to fearlessly uncover new possibilities

Medical Science Liaison (MSL) is a field-based scientific professional within Medical Affairs, responsible for building relationships with key opinion leaders (HCPs) and medical institutions. They provide fair and balanced scientific information, support medical education, and deliver clinical and educational engagement to healthcare professionals, support clinical studies, investigator-initiated research, and strategic initiatives.

Work Model:

Remote: Officially documented as working full-time from home, with travel to Ultragenyx's offices or other locations on occasion as needed.

Responsibilities:

  1. Identify Key Opinion Leaders (KOLs), and establish and maintain scientific relationships with KOLs; connecting to KOLs in academic and community centers, using the science behind our products to support treatment for patients with rare and ultra-rare diseases.
  2. Act as primary liaison to investigators interested in developing and performing investigator-initiated research
  3. Develop and execute territory plans in alignment with country-level plans
  4. Provide clinical presentations and medical information in response to unsolicited questions (as appropriate) in academic, community, healthcare provider settings, and other stakeholders, including payers
  5. Provide medical information and updates through scientific exchange and disseminate scientific publications and scientific support for appropriate educational initiatives.
  6. Collaborate with the Clinical Operations organization to enhance patient enrolment in company-sponsored clinical trials by identifying appropriate clinical trial sites and interacting with investigators in ongoing studies
  7. Provide scientific support at medical congresses
  8. Work in alignment with the department and company Brand Plan, contributing in a cross-functional manner.
  9. Provide timely medical insights/information on emerging clinical/scientific teams and opportunities to internal stakeholders
  10. Be compliant with Ultragenyx Code of Conduct, policies, and procedures, and ensure all activities are compliant with company policies and SOPs.

Requirements:

  1. Advanced degree in clinical specialty (MD, PhD, PharmD) and 2+ years of MSL experience strongly preferred.
  2. Rare disease experience preferred, particularly in metabolic genetic diseases
  3. Excellent teamwork and communication skills required
  4. Demonstrated experience in effectively presenting clinical/scientific information required
  5. Expert understanding of the local health care delivery system and its impact on patient care and regional medical care
  6. Models our Core Values #Dynamic #Possibility #Generous # Relentless #Courageous and is experienced as someone who exemplifies the culture we want to create; operates with transparency; is trusted
  7. Ability to relate and work with a wide range of people to achieve results
  8. Ability to organize and prioritize own work schedule
  9. Ability to make decisions that have a significant impact on the department’s credibility, operations, and services
  10. Ability to create materials such as reports and presentations for inside and outside the organization, and present/speak to groups
  11. Time and territory management skills required
  12. Approximately 50-60% travel is required; overnight travel is required as needed
  13. Fluency in English

#LI-CK1 #LI-Remote

Full Time employees across the globe enjoy a range of benefits, including, but not limited to:
· Generous vacation time and public holidays observed by the company
· Volunteer days
· Long term incentive and Employee stock purchase plans or equivalent offerings
· Employee wellbeing benefits
· Fitness reimbursement
· Tuition sponsoring
· Professional development plans
* Benefits vary by region and country

Ultragenyx Pharmaceutical is an equal opportunity employer and prohibits unlawful discrimination based on race, color, religion, gender, sexual orientation, gender identity/expression, national origin/ancestry, age, disability, marital and veteran status, and any other status or classification protected by applicable federal, state, and/or local laws. Reasonable accommodation will be provided for all protected statuses or classifications protected by applicable law, including individuals with disabilities, disabled veterans, for pregnancy, childbirth, and related medical conditions, and based on sincerely held religious beliefs. Applicants can request an accommodation prior to accepting a job offer. If you require reasonable accommodation in completing this application, or in any part of the recruitment process, you may contact Talent Acquisition by emailing us at talentacquisition@ultragenyx.com.

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It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Note to External Recruiters: All candidate activity and open positions are managed strictly through our Human Resources Department. Our Human Resources Department kindly requests that recruiters not contact employees/hiring managers directly in an attempt to solicit business and present candidates. Please note that failure to comply with this request will be a factor in determining a professional relationship with our organization. Submission of unsolicited resumes prior to an agreement set in place between the Human Resources Department and the recruiting agency will not create any implied obligation. Inquiries on developing a recruiting relationship with us, may be directed to: talentacquisition@ultragenyx.com.
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