Director, Biostatistics

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📍 Watertown, Massachusetts, United States💰 USD 226K–257K

About this role

Director of Biostatistics

The Director of Biostatistics will lead the statistical strategy, design, and trial-level execution for early-phase oncology clinical trials (Phase I/II). This is a high-impact, trial-focused role responsible for authoring statistical analysis plans, executing complex statistical models, and directly analyzing data for novel cancer therapies. The Director ensures that early-development trials—from First-in-Human (FIH) dose escalation to Proof-of-Concept (PoC)—are designed and analyzed with the highest level of scientific rigor.

 

Responsibilities

Trial Design & Execution

  • Trial Architecture: Lead the statistical design and execution of individual oncology protocols, including sample size calculations, randomization schemes, and adaptive design simulations.
  • Statistical Modeling: Implement and execute trial-level dose-finding methodologies, such as Bayesian Optimal Interval (BOIN), and cohort expansion models.
  • Analysis & Programming: Program, validate, and perform statistical analyses for trial data cuts, Safety Review Committees, and Dose Escalation Meetings.
  • SAPs & Output: Author trial-specific Statistical Analysis Plans, design shell tables, listings, and figures (TLFs), and write statistical sections of Clinical Study Reports (CSRs).

Data Visualization & Insights

  • Visual Reporting: Design and build dynamic data visualizations, dashboards, and interactive graphics (e.g., using R/Shiny) to track real-time dose escalation, safety signals, and biomarker trends.
  • Translate complex statistical outputs and trial models into intuitive, high-impact visual decks for executive leadership, investors, and scientific advisory boards.

Regulatory & Vendor Deliverables

  • CRO Management: Provide direct technical oversight to CRO programmers and biostatisticians, verifying all trial-level deliverables for quality and accuracy.
  • Regulatory Submissions: Prepare data packages and statistical rationales for Investigational New Drug (IND) submissions and expedited regulatory filings.

Cross-Functional Collaboration

  • Study Teams: Serve as the core biostatistician on clinical trial working groups, collaborating daily with Clinical Leads, Data Managers, and Biomarker scientists.
  • Data Integration: Blend pharmacokinetic (PK/PD) and translational biomarker data into trial-level exploratory analyses to identify early safety or efficacy signals.

 

Qualifications & Skills

Education & Experience

  • Ph.D. in Biostatistics or Statistics with 6+ years of biotech/pharma experience, OR
  • M.S. in Biostatistics or Statistics with 8+ years of biotech/pharma experience.
  • Minimum of 3 years of hands-on experience designing, modeling, and analyzing early-phase oncology trials (Phase I/II).
  • Proven track record of taking individual oncology trials from protocol design through final CSR.

Technical & Soft Skills

  • Advanced, hands-on programming expertise in R and SAS (specifically for trial simulations, complex oncology datasets, and visualization packages like Shiny).
  • Expert knowledge of early oncology endpoints (e.g., DLT, PFS, ORR, RECIST 1.1, Lugano criteria).
  • Comfort working in a fast-paced environment with a high volume of early-stage data iterations.
  • Outstanding written and verbal communication skills, with a proven ability to influence matrixed teams and explain statistical concepts simply.

 

This position is classified as exempt. The anticipated annual base salary range for candidates who will work in Watertown is $226,425 - $257,000. The final base salary offered to the successful candidate will be dependent upon several factors that may include but are not limited to the type and length of experience within the job, and other factors. Treeline Biosciences is a multi-state employer, and this salary range may not reflect positions that work in other cities or states.

 

Recruitment fraud statement

Please be aware of recruitment fraud and related job scams, where scammers present themselves as recruiters but are seeking to steal money or personal information. Keep the following in mind to protect yourself:

  • Treeline Biosciences will never ask for money from you as part of our recruitment process. Do not provide bank details or pay somebody for the promise of a job at Treeline.
  • We do not conduct interviews through RingCentral, Skype or Telegram.
  • Our job openings are first posted to treeline.bio/careers. If you locate a listing for a Treeline job on another site, please ensure it is also posted on our careers website.
  • You can find more information about job scams at consumer.ftc.gov/articles/job-scams.
  • To report job scams, head to ReportFraud.ftc.gov.

 

Notice to Search Firms/Third-Party Recruitment Agencies (Recruiters)

The Human Resources team manages the recruitment and employment process for Treeline Biosciences. To protect the interests of all parties involved, Treeline Biosciences will only accept resumes from a recruiter if an executed search agreement directed to the particular position or positions is in place at the start of the recruitment effort. Unsolicited resumes sent to Treeline Biosciences from recruiters do not constitute any type of relationship between the recruiter and Treeline Biosciences and do not obligate Treeline Biosciences in any way to pay fees should we hire from those resumes. Recruiters are requested not to contact or present candidates directly to our hiring manager or employees.

Frequently Asked Questions

What is the salary for the Director, Biostatistics role at treelinebiosciences?
The listed salary for this Director, Biostatistics position at treelinebiosciences is USD 226K–257K. This is an full-time role.
Where is the Director, Biostatistics position at treelinebiosciences located?
This Director, Biostatistics role at treelinebiosciences is based in Watertown, Massachusetts, United States. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Which team or department does the Director, Biostatistics at treelinebiosciences belong to?
This Director, Biostatistics position is part of the Clinical department at treelinebiosciences. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Director, Biostatistics position at treelinebiosciences?
Click the "Apply Now" button on this page. You will be redirected to treelinebiosciences's official application portal hosted on greenhouse where you can submit your application directly.
When was the Director, Biostatistics job at treelinebiosciences posted?
This Director, Biostatistics position at treelinebiosciences was posted on Jul 20, 2026. Apply as soon as possible — early applications are often reviewed first.
Director, Biostatistics
treelinebiosciences · 💰 USD 226K–257K
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