About the role

  • Own growth experimentation end-to-end: Grow Berry Street’s patient base by an order of magnitude through growth technology. Lead conversion funnel experiments as the technical owner of Berry Street's growth experimentation practice
  • Build self-serve experimentation tools: Create platforms that empower the growth marketing team to launch tests, personalize experiences, and analyze results independently
  • Build intelligent systems that unlock personalization: Implement pipelines using LLMs for content personalization and embeddings for semantic targeting as we scale our ability to serve the needs of specific patient cohorts with greater precision
  • Deliver exponential, compounding results: Build systems where AI-driven improvements stack — each experiment teaching the system to run better experiments, creating exponential growth in both learning velocity and business impact. Speed to learn is everything

Requirements

  • Experience: 6–8 years of full-stack engineering, with at least 3 years in growth engineering.
  • Technical Mastery: strong in TypeScript, React, and Node.js – comfortable architecting full growth stacks.
  • Data & Experimentation Expertise: deep experience with A/B testing platforms (LaunchDarkly, GrowthBook) and analytics tools (Amplitude, Segment, Mixpanel).
  • AI-Native Leadership: fluent in using LLMs and agentic tools (Cursor, Claude Code, OpenAI, etc.) to supercharge experimentation, personalization, and automation.
  • Systems Thinker: able to design processes and architecture that make experimentation repeatable, scalable, and safe.
  • Cross-Functional Collaborator: proven ability to translate between engineering, marketing, and data teams.
  • Bias to Action: pragmatic builder who ships, measures, and iterates rapidly.

Benefits

  • This role has the option to be in-person/hybrid in NYC, or fully remote depending on candidate location
  • The expected base pay range for this position is $225,000–$275,000, based on qualifications and experience
  • Comprehensive health insurance plans, including dental and vision
  • Generous PTO 🏖️
  • 401k with match 💰
  • Citibike membership 🚲
  • Unlimited dietitian care 🍓

Job title

Lead Growth Engineer

Job type

Experience level

Senior

Salary

$225,000 - $275,000 per year

Degree requirement

Bachelor's Degree

Location requirements

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