Senior Biostatistician

Company: Warman O'Brien
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Senior Statistician | UK | Remote | Mid-Size CRO | Permanent

Our client is an established specialist biometrics consultancy providing high-quality statistical and programming services to the pharmaceutical and biotechnology industry. Due to continued growth, they are seeking an experienced Senior Statistician to join their collaborative UK-based team.

This is an excellent opportunity for a statistician who enjoys combining technical expertise with client interaction, taking ownership of projects from study design through to reporting, while working on a diverse range of clinical development programmes.

The Role

As a Senior Statistician, you will provide statistical leadership across multiple clinical projects, working closely with clients and cross-functional teams to ensure the successful delivery of high-quality statistical outputs.

Key Responsibilities

  • Lead the development of Statistical Analysis Plans (SAPs), including estimand strategies, statistical methodologies, hypothesis testing and mock table, listing and figure (TLF) shells.
  • Coordinate statisticians and statistical programmers to deliver high-quality statistical outputs, including SDTM, ADaM and TLF packages, within agreed timelines.
  • Perform quality control of datasets and statistical outputs, including independent validation programming of complex ADaM datasets and analyses using SAS.
  • Serve as the primary statistical contact for clients, providing expert guidance throughout the lifecycle of clinical development projects.
  • Provide statistical consultancy on study design, protocol development, sample size calculations and estimand strategies.
  • Chair Data Review Meetings (DRMs), driving key decisions and ensuring appropriate documentation is maintained.
  • Author and review statistical sections of Clinical Trial Reports (CTRs) and contribute to the interpretation and presentation of study results.
  • Act as the independent statistician supporting Data Monitoring Committees (DMCs/IDMCs), including preparing reports and facilitating committee meetings.
  • Manage project budgets, monitor project performance and initiate change orders where required.
  • Support business development activities by participating in proposal development and Bid Defence Meetings.
  • Represent the biometrics function during client audits and regulatory inspections where required.

About You

  • Degree in Statistics, Biostatistics, Mathematics or a related quantitative discipline.
  • Around three or more years’ experience working as a Statistician within a CRO, pharmaceutical or biotechnology environment.
  • Proven experience leading statistical activities across clinical trials and managing client-facing projects.
  • Strong knowledge of ICH, regulatory guidance and CDISC standards, including SDTM and ADaM.
  • Advanced SAS programming skills with experience performing independent quality control.
  • Excellent communication and stakeholder management skills, with the ability to build strong client relationships.
  • Highly organised, collaborative and committed to delivering high-quality work.

What’s on Offer

  • Competitive salary and comprehensive benefits package.
  • Hybrid and flexible working arrangements.
  • Supportive, collaborative culture with a flat organisational structure.
  • Opportunity to work on varied and scientifically interesting clinical development programmes.
  • Structured onboarding together with ongoing training and professional development.
  • A genuine opportunity to influence projects, work closely with clients and continue developing your career within an expert biometrics environment.

Posted: July 11th, 2026