Senior Data Scientist (12 months Fixed Term)
Flatiron HealthRole Overview
Flatiron Health is hiring a Senior Data Scientist (12 months Fixed Term). This is a full-time role in London office. Part of Flatiron Health's Embedded hiring, posted 2 weeks ago. Full responsibilities, required qualifications, and the apply link are listed in the description below.
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Job description
We’re looking for a Senior Data Scientist for 12 months to help us accomplish our mission to improve and extend lives by learning from the experience of every person with cancer. Are you ready to be the next changemaker in cancer care?
Flatiron Health is a healthtech company using data for good to power smarter care for every person with cancer, around the world. Flatiron partners with cancer centers in the US, Europe and Asia to transform patients’ real-life experiences into real-world evidence and create a more modern, connected oncology ecosystem. Our multidisciplinary teams include oncologists, data scientists, data analysts, software engineers, research scientists, product experts and more. Flatiron Health is an independent affiliate of the Roche Group.
What You'll Do
This role is part of our International Data Science team. The Data Science Team is a diverse and talented group of individuals with strong data expertise and understanding of our customers’ needs.
Building on 10 years of experience in the US, Flatiron’s international team is scaling Flatiron’s approach in new countries. Streamlined teams in each market are establishing partnerships with local cancer care providers and developing high-quality real-world data for researchers around the world. Data Scientists are embedded in those teams and play a key role in understanding our data partners’ source data and conducting exploratory data analyses to support data-driven decision-making. They build research-grade data sets and leverage a breadth of tools, including AI, to develop approaches to enrich our data models, maximise data quality and increase efficiency and robustness of our pipelines. .
As part of this work, you will:
- Work closely with a cross-functional team (e.g., product managers, software engineers, oncologists, clinical data specialists) to develop new real-world data products.
- Establish strong relationships with key stakeholders at our partner sites and collaborate with them to develop a deep understanding of their data and enable seamless data transfers.
- Become a subject matter expert in the format, quality, content and sources of data from our partners; develop validation approaches to ensure consistency of these sources.
- Conduct exploratory analyses to define source data ingestion approaches that meet our quality bar; define business logic to transform new source data into Flatiron’s common data model.
- Apply and validate LLM-based approaches to process unstructured electronic health record data at scale to enhance our real-world data products.
- Collaborate with software engineers to design, implement and automate scalable data pipelines, utilising internal or off-the-shelf external AI tools.
Who You Are
You're a kind, collaborative and analytic problem solver and value the opportunity to think beyond the way things are. In addition,
- You have a BS or MS from a technical field of study (e.g. data science, engineering, computer science, mathematics, applied statistics, health economics, etc.) with 5+ years of relevant experience.
- You have strong data empathy and enjoy the process of exploring and developing a deep understanding of new data sources.
- You’re impact-oriented, and care deeply about creating real change for customers, users, and ultimately patients.
- You have some experience working with ML and LLMs. You understand how machine learning and AI systems are measured and can analyze an existing system to understand the quality of its output, assess where improvements are needed, and communicate the impact of those improvements to stakeholders.
- You have collaborated with other technical team members in a production development environment using formal version control, Python (including data manipulation in pandas, polars or a similar framework), and SQL.
- You have an understanding of key statistical concepts and the ability to generate and interpret statistical analyses.
- You are a clear and confident communicator who can break down complex data analyses to tell a compelling story.
- You are a self-starter with a strong sense of ownership who can independently prioritize and who enjoys coming up with innovative solutions to challenging problems.
- You are passionate about our mission to improve cancer care through data and technology.
- You enjoy working in a fast-paced startup-like environment.
Optional
- You have prior experience in healthcare.
- You have experience working in DBT, Snowflake or are excited to learn.
Who We Are
Our people are at the center of everything we do. We strive to foster a culture where our teammates feel equipped and empowered to make meaningful contributions with confidence, compassion, and clarity.
About Flatiron Health
Flatiron Health
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Frequently Asked Questions
How do I apply for the Senior Data Scientist (12 months Fixed Term) position at Flatiron Health?
Use the Apply button above to submit your application directly to Flatiron Health. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Where is the Senior Data Scientist (12 months Fixed Term) position at Flatiron Health located?
This position is based in London office. Flatiron Health has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.
What does a Senior Data Scientist (12 months Fixed Term) at Flatiron Health earn?
Flatiron Health has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the Senior Data Scientist (12 months Fixed Term) role at Flatiron Health posted?
This role was posted on June 24, 2026 (15 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
How much experience does the Senior Data Scientist (12 months Fixed Term) role at Flatiron Health require?
This is a senior-level position. Most senior roles call for 5+ years of directly relevant experience. Flatiron Health lists their specific requirements in the description below, so review the must-have qualifications closely before applying.
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