8+ years of experience in product analytics, analytics engineering, or data science. Comfortable with Command-Line Interfaces (CLI), Git-based version control, and CI/CD pipelines. Deep dbt expertise for building clean, tested, and documented data models. Mastery of event-based analytics for user behavior analysis. Proven experience building a data stack from scratch. Strong data quality obsession and ability to identify and fix discrepancies. Familiarity with ELT Tools (Fivetran, Airbyte) is a plus. AI/LLM familiarity is a plus. Experience merging data from multiple product lines is a plus. Familiarity with data schemas of Product databases, HubSpot, and Chargebee is a plus. Experience working with Snowflake is a plus. Background in B2B SaaS is a plus. Ability to commute to the Waltham office on occasion.