**Principal Clinical Scientist***(Senior Clinical Scientist level also considered)***The Role**We're looking for a clinical scientist — someone who has been the scientific lead for clinical studies before, from protocol development to start-up (development of critical study documents) through to study execution, data analysis and interpretation and close-out with a clinical study report. Having prepared regulatory submissions of study results is a pre. You'll work in close partnership with the clinical operations team and CROs under the team's full-outsource operating model, managing that day-to-day relationship rather than delivering trial activity in-house. It's one of two newly approved roles, created ahead of anticipated demand rather than to backfill a departure, which means there's genuine room to help shape how the team works rather than simply joining an existing structure.*Hybrid based (3 days a week onsite) in Maidenhead (UK), Melbourne (Aus) or Zurich (CH)***Why It Matters**A clinical study is only as good as the people running it. A weak protocol, poorly managed start-up, or a fumbled relationship with the CRO delivering the trial can cost a program months — sometimes far more — and that delay sits between a therapy and the patients waiting on it. This role exists because CSL is adding capacity to get that execution right: someone who can lead all scientific needs of a study properly, and co-own the end to end alongside clinical operations, is what actually moves a clinical development plan forward. It's not a supporting or administrative function — it's the core that determines whether the science translates into a trial that runs cleanly and data that holds up.**What You'll Be Responsible For**You'll take ownership of clinical studies end-to-end, acting as the scientific and operational anchor between the program team and outsourced delivery partners.* Lead all scientific elements of clinical studies from protocol development through study execution to a final clinical study report* Write and/or take responsibility for study protocols, clinical study reports and other critical study documents* Manage, alongside the clinical operations lead, day-to-day working relationships with CROs under a full-outsource operating model* Collaborate closely with the cross-functional study teams — this is a collaborative role, not an isolated one one* Contribute to the scientific interpretation of clinical data and supporting documentation* Build working relationships across the wider team, including colleagues based in the US and Australia**Experience Required*** Demonstrated, hands-on experience with clinical studies (protocol development, execution, close-out) — not solely oversight or academic exposure* Experience writing clinical study protocols and clinical study reports directly* Experience working within a full-outsource / CRO-dependent operating model* A collaborative, cross-functional working style — comfortable building relationships rather than working independently## **About CSL Seqirus**CSL Seqirus is part of CSL. As one of the largest influenza vaccine providers in the world, CSL Seqirus is a major contributor to the prevention of influenza globally and a transcontinental partner in pandemic preparedness. With state-of-the-art production facilities in the U.S., the U.K. and Australia, CSL Seqirus utilizes egg, cell and adjuvant technologies to offer a broad portfolio of differentiated influenza vaccines in more than 20 countries around the world.To learn more about CSL, CSL Behring, CSL Seqirus and CSL Vifor visit https://www.csl.com/ and CSL Plasma at https://www.cslplasma.com/.**Our Benefits**For more information on CSL benefits visit How CSL Supports Your Well-being | CSL.**You Belong at CSL**At CSL, Inclusion and Belonging is at the core of our mission and who we are. It fuels our innovation day in and day out. By celebrating our differences and creating a culture of curiosity and empathy, we are able to better understand and connect with our patients and donors, foster strong relationships with our stakeholders, and sustain a diverse workforce that will move our company and industry into the future. To learn more about inclusion and belonging visit https://www.csl.com/careers/inclusion-and-belonging**Equal Opportunity Employer**CSL is an Equal Opportunity Employer. If you are an individual with a disability and need a reasonable accommodation for any part of the application process, please visit https://www.csl.com/accessibility-statement.