Senior Scientist, Vaccine Virology & Immunology — Onsite

CSL Plasma; Waltham (MA); On-site; USD 145,000 - 180,000; Full time

Job summary

CSL Seqirus in Waltham, MA seeks a Principal Scientist to lead virology and immunology programs, develop assay platforms, and translate data into vaccine development strategies. The role combines hands-on laboratory work with scientific leadership across cross-functional teams.

You will mentor staff, interact with external partners, and contribute to regulatory documentation while advancing seasonal and pandemic influenza vaccine programs.

Qualifications

• PhD in Virology, Immunology, Microbiology, or related field with postdoc/pro experience.
• Strong expertise in classical and molecular virology and assay development.
• Experience with infectious-virus culture and neutralization assays.
• Proven ability to lead projects and collaborate across teams.

Responsibilities

• Lead vaccine research programs as a virology expert with milestones and deliverables.
• Design and optimize virology and immunology assays for vaccine development.
• Interpret preclinical immunogenicity and protection studies and translate data into strategy.
• Collaborate with CROs and external partners; contribute to regulatory documents.
• Mentor scientists and promote cross-training within the team.
• Ensure biosafety compliance and laboratory readiness for BSL‑2/BSL‑3 work.

Skills

Virology expertise

Immunology expertise

Assay development

Data analysis

Scientific leadership

Education

PhD in Virology/Immunology

Job description

CSL Seqirus in Waltham, MA seeks a Principal Scientist to lead virology and immunology programs, develop assay platforms, and translate data into vaccine development strategies. The role combines hands-on laboratory work with scientific leadership across cross-functional teams.

You will mentor staff, interact with external partners, and contribute to regulatory documentation while advancing seasonal and pandemic influenza vaccine programs.