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Principal Medical Writer

Thermo Fisher Scientific
Thermo Fisher Scientific
8+ years
preferred by company
10 Jan. 2, 2026
Job Description
Job Type: Full Time Remote Education: B.Sc./ M.Sc./ M.Pharm/ B.Pharm/ Life Sciences Skills: Causality Assessment, Clinical SAS Programming, Communication Skills, CPC Certified, GCP guidelines, ICD-10 CM Codes, CPT-Codes, HCPCS Codes, ICD-10 CM, CPT, HCPCS Coding, ICH guidelines, ICSR Case Processing, Interpersonal Skill, Labelling Assessment, MedDRA Coding, Medical Billing, Medical Coding, Medical Terminology, Narrative Writing, Research & Development, Technical Skill, Triage of ICSRs, WHO DD Coding

Principal Medical Writer – Regulatory (FSP) – Remote, APAC

Location: Remote, Mumbai, Maharashtra, India (Work from anywhere in APAC)
Job Type: Full-Time, Fully Remote
Category: Clinical Research / Medical Writing
Job ID: R-01334578


About the Role

Thermo Fisher Scientific is expanding its Medical Writing FSP Team in APAC and is seeking a highly experienced Principal Medical Writer. This role will support complex medical writing projects for clients in the FSP space, providing high-quality regulatory and scientific documents. While experience in Immunology, Oncology, or Vaccines is preferred, it is not mandatory.

As a Principal Medical Writer, you will lead document development, provide senior-level review, mentor junior writers, and advise on document strategy, regulatory compliance, and industry best practices. This role requires collaboration with internal and external stakeholders to ensure operational excellence and consistent delivery of regulatory documents.


Key Responsibilities

  • Research, author, and edit clinical study reports (CSRs), study protocols, and other regulatory documents, summarizing data accurately from clinical trials.

  • Serve as the primary author for complex program-level documents, including Investigator Brochures (IBs), INDs, MAAs, and ICFs.

  • Provide senior-level review and guidance for routine and complex documents. Mentor junior writers and program managers on document preparation, regulatory requirements, and therapeutic area expertise.

  • Ensure compliance with internal quality processes, global and regional regulatory guidelines, and client-specific standards.

  • Develop, review, and implement best practices for document development, workflow processes, and process improvement initiatives.

  • Support project management tasks such as timelines, budgets, forecasts, and contract modifications. May assist in business development activities including client proposals and bid defense meetings.

  • Represent the medical writing team in project launch meetings, review sessions, and team discussions.

  • Act as a backup program manager when required, providing strategic oversight for assigned projects.


Experience Required

  • 8+ years of regulatory medical writing experience.

  • Proven expertise in authoring CSRs, protocols, IBs, ICFs, and other regulatory documents.

  • Experience in managing and directing complex medical writing projects.

  • Prior experience in the pharmaceutical or CRO industry is required.

  • Submission document experience is advantageous.

  • AMWA, EMWA, or RAC certification is preferred.


Educational Qualifications

  • Bachelor’s degree in a scientific discipline (e.g., BSc, BPharm, MSc, PharmD, MBBS).

  • Advanced degree preferred.


Key Skills & Competencies

  • In-depth knowledge of global, regional, and national regulatory guidelines.

  • Strong expertise in one or more therapeutic areas (preclinical, oncology, immunology, vaccines, or submissions).

  • Excellent medical writing, data interpretation, editorial, and proofreading skills.

  • Strong project management, stakeholder communication, and negotiation skills.

  • Ability to mentor and lead junior writers and foster team development.

  • Independent decision-making, problem-solving, and high professional judgment.

  • Proficiency in document management systems and standard office software.


Why Join Thermo Fisher Scientific – PPD Clinical Research Services

  • Contribute to high-impact clinical research programs that improve health outcomes globally.

  • Work fully remote from India while collaborating with cross-functional, global teams.

  • Competitive salary and comprehensive benefits supporting health, well-being, and career growth.

  • Access to award-winning learning and development programs for continuous professional growth.

  • Join a mission-driven organization committed to Integrity, Intensity, Innovation, and Involvement.


Who Should Apply

This opportunity is ideal for senior medical writing professionals with proven experience in regulatory submissions, complex medical writing projects, and team mentorship, seeking a fully remote role with global exposure in APAC.