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Flagship Pioneering, Inc.

Principal Data Scientist

Flagship Pioneering, Inc. · Cambridge, MA USA

Posted 22 days ago · $179,000 - $236,500

or apply directly on Flagship Pioneering, Inc.'s site. We never take the application ourselves.

Is this posting real?

This role has been open
22 days
Flagship Pioneering, Inc.'s roles stay open a median of 45 days
Reposted
No
Salary listed
Yes
89% of Flagship Pioneering, Inc.'s roles list one
Ghost-job risk at Flagship Pioneering, Inc.
high
50 stale, 1 reposted of 100 open
Hiring momentum
144 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-09-17

Measured from postings appearing on and disappearing from Flagship Pioneering, Inc.'s own greenhouse board since 2026-08-03. Full hiring picture for Flagship Pioneering, Inc..

About this role

As a Principal Data Scientist at Extuitive, you will lead the development and deployment of data science models that optimize advertising performance across various channels. Your role involves defining learning targets, building measurement systems, designing experiments, and translating model outputs into actionable marketing strategies. You will collaborate cross-functionally to ensure successful model lifecycle management and validation.

Our read on this posting4.0out of 5
benefits
2/5
freshness
4/5
career value
4/5
role clarity
5/5
pay transparency
5/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Flagship Pioneering, Inc. as an employer.

What you need

  • 8+ years of data science, machine learning, statistics, or related quantitative experience
  • Advanced degree in Statistics, Mathematics, Economics, or another quantitative field, or equivalent practical experience
  • Strong expertise in Python, SQL, and modern data science and machine learning frameworks
  • Strong foundation in statistics, machine learning, experimental design, forecasting, and model evaluation
  • Demonstrated track record of taking models from research and experimentation through production deployment, customer validation, and measurable business impact
  • Experience modeling advertising, marketing, consumer, or marketplace performance, including metrics such as conversion, engagement, acquisition, ROAS, CAC, or lifetime value

Nice to have

  • Experience building predictive advertising or marketing optimization products in an early-stage startup
  • Deep familiarity with advertising platform data and APIs, including Meta, Google, TikTok, LinkedIn, or similar platforms
  • Experience with budget optimization, bidding, recommendation systems, uplift modeling, or other decision-making systems
  • Experience applying LLMs, embeddings, or other foundation models to advertising, creative, or consumer data
  • Experience developing models in data-sparse or cold-start environments where historical performance data is limited

What you get

  • Healthcare coverage
  • Annual incentive program
  • Retirement benefits
  • Broad range of other benefits

Worth weighing

  • No specific mention of remote work options
  • Fast-paced environment may require adaptability to changing priorities
  • Salary range provided, but compensation depends on various factors
  • Experience in early-stage startups is a nice-to-have, which may indicate a preference for candidates with startup experience

Summarised from Flagship Pioneering, Inc.'s posting. Read the full original.

Listed by Flagship Pioneering, Inc. on their greenhouse job board, last confirmed open on 2026-09-17. PitchMeAI is not the employer.

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