Senior Medical Writer

Bring more to life.

Are you ready to accelerate your potential and make a real difference within life sciences, diagnostics and biotechnology?

At Masimo, one of Danaher’s () 15+ operating companies, our work saves lives—and we’re all united by a shared commitment to innovate for tangible impact.

You’ll thrive in a culture of belonging where you and your unique viewpoint matter. And by harnessing Danaher’s system of continuous improvement, you help turn ideas into impact – innovating at the speed of life.

Masimo is a global medical technology company that develops and produces a wide array of industry-leading monitoring technologies, including non-invasive measurements, sensors, patient monitors, and automation and connectivity solutions. Our mission is, Masimo innovations empower clinicians to transform patient care. When you join our team, you’ll be part of a culture that’s driven by passion, challenging the status quo, and making an impact in the lives of others.

Learn about the Danaher Business System which makes everything possible.

The Senior Medical Writer is responsible for the development of clinical evaluation reports (CERs) and post-market surveillance (PMS) reports in compliance with EU MDR and global regulatory standards. This role conducts systematic literature searches, appraises scientific evidence, and collaborates cross-functionally across Scientific Affairs, Clinical Research, Regulatory Affairs, Engineering, and Marketing to support product portfolio compliance and clinical communications.

This position reports to the Sr Director, Scientific Affairs & Research and is part of Medical Affairs located in Irvine, CA and will be an on-site role.

• Lead the development, maintenance, and periodic updates of CERs and PMS evaluation summaries in accordance with EU MDR, MEDDEV 2.7/1 Rev. 4 and global regulatory guidance.
• Design, execute, and document systematic literature searches and screening strategies, while maintaining scientific reference libraries and ensure accurate citation and documentation of supporting evidence.
• Critically appraise scientific literature for quality, clinical relevance, and alignment with intended device claims.
• Interpret clinical study protocols, statistical analysis plans, and study results to incorporate into clinical evidence summaries.
• Prepare literature review reports, evidence summaries, state-of-the-art analyses, clinical data appraisals, and benefit-risk assessments,
• Monitor emerging scientific literature and technological developments relevant to Masimo products, therapeutic areas, and competitive technologies.
• Contribute to clinical study reports, white papers, conference abstracts, posters and scientific manuscripts for peer-reviewed journals

• Demonstrated experience conducting systematic literature reviews and critical appraisals of scientific literature.
• Proven ability to interpret and summarize complex clinical and scientific information for technical and non-technical audiences.
• Experience managing scientific references and literature search platforms.
• Strong organizational skills and experience using reference management software.

• Direct experience authoring EU MDR-compliant CERs and PMS reports for medical devices.
• Working knowledge of EU MDR, MEDDEV 2.7/1 Rev. 4, ISO 14155, and FDA clinical guidance documents.
• Proven track record of scientific publication in peer-reviewed journals

Masimo , a Danaher operating company, offers a broad array of comprehensive, competitive benefit programs that add value to our lives. Whether it’s a health care program or paid time off, our programs contribute to life…