Senior Data Scientist

Phastar; United Kingdom; Remote; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Remote working

Flexible hours

Career development

Job summary

Phastar is seeking an experienced Senior Data Scientist to join our FSP team supporting a global pharmaceutical client. The role emphasizes statistical leadership, data science, and AI applications within high-dimensional datasets.

The position is full-time and fully remote, with potential bases in the UK, France, or Spain. Candidates should have PhD or MS with relevant experience, strong statistical programming skills, and knowledge of cloud environments, SDTM/ADaM, and ML frameworks.

Qualifications

• PhD in Statistics, Applied Mathematics, Data Science, or related field; or MS with 3–5+ years of industry experience.
• Extensive knowledge of mathematical statistics, probability, and statistical modelling.
• Experience applying machine learning or AI methods to large or high-dimensional data sets.
• Proficiency in SAS, R and Python; more is advantageous.
• Solid understanding of causal inference and observational study design; Bayesian modelling or probabilistic ML is a plus.
• Experience with large-scale real-world data (claims, EHR, registries) and cloud/big-data environments (SQL, Spark, Databricks, AWS, Azure, GCP).
• Familiarity with CDISC (SDTM/ADaM) and ML frameworks (scikit-learn, PyTorch, TensorFlow) is advantageous.

Responsibilities

• Provide statistical leadership and direction on analytical projects.
• Lead and mentor team members and foster development.
• Ensure compliance, quality and governance across analyses.
• Communicate findings effectively to stakeholders and influence decisions.

Skills

Statistical modelling

Machine learning

AI in statistics

Data science

Education

PhD in Statistics or related field

MS with 3–5+ years of experience

Tools

SAS

R

Python

SQL

Spark

Job description

We are seeking an experienced Data Scientist to join our FSP team to support one of our fantastic and well-known global pharmaceutical clients, at Senior level. We are looking for someone who has significant experience not just of statistics, but also data science. The successful candidate will be familiar with AI usage in statistics, able to deliver high-quality analytical outputs and will review complex statisticial analysis plans.

This role is full-time and fully-remote. The successful candidate may be based in the UK, France or Spain.

Responsibilities

• Statistical expertise and scientific leadership
• Leadership and people development
• Compliance, quality and governance
• Communication and influence

Qualifications

• PhD in Statistics, Applied Mathematics, Data Science, or related quantitative field or MS with 3-5+ years of relevant industry experience
• Extensive knowledge of mathematical statistics, probability, and statistical modelling
• Demonstratable experience applying machine learning or AI methods to large or high dimensional datasets
• Proficiency in Statistical programming languages including SAS, R and Python (more is advantageous)
• Solid understanding of causal inference and observational study design. Experience with Bayesian modelling or probabilistic machine learning
• Experience with large-scale real-world data (administrative claims, EHR, OMOP/CDM, registries)
• Familiarity with cloud or big-data environments (SQL, Spark, Databricks, AWS, Azure, GCP)
• CDISC knowledge (SDTM and ADaM)
• Familiarity with ML frameworks (e.g., scikit-learn, PyTorch, TensorFlow) is advantageous

Why Join Us?

• Remote working and flexible working hours
• Career development, mentorship, and continuous learning
• Supportive, friendly, and collaborative culture

About Phastar

Phastar is an award-winning biometrics and data science CRO, trusted by pharma, biotech, and medical device companies worldwide. With a global team of data specialists, we bring expertise, precision, and pace to every trial, because behind every data point is a patient waiting for treatment.

We transform complex data into clear, actionable intelligence, helping accelerate drug development, and bring life-changing therapies to patients faster.

Awards & Recognition

• SCRIP – Best Contract Research Organization, Specialist Provider
• Citeline – 2025 Award Winner
• Fierce CRO Awards – Recognized Industry Leader

Phastar is committed to the principles and practices of equal opportunities and to encourage the establishment of a diverse workforce. It is our policy to employ individuals on the basis of their suitability for the work to be performed and their potential for development, regardless of age, sex, race, color, nationality, ethnic or national origin, disability, marital status, pregnancy or maternity, sexual orientation, gender reassignment, religion, or belief. This includes creating a culture that fully reflects our commitment to equal opportunities for all.