[Hiring] Growth Manager @Massive Bio

Role Description

We’re hiring a Growth Manager to take ownership of how we acquire and convert users across our platform. This is a hands-on, experiment-driven role for someone who has scaled acquisition funnels in fast-moving environments and wants to apply that skill set to a product with real human impact.

The domain you’ll operate in:

• Our users are cancer patients and healthcare providers.
• The conversion funnel is unique; it moves from initial awareness through consent, medical record collection, clinical prescreening, and ultimately enrollment into a trial.
• You don’t need to come from healthcare to succeed here, but you do need to be excited about learning a complex funnel and finding creative ways to move people through it.

What You’ll Own:

• Acquisition & Funnel Optimization:
  • Own the full user acquisition funnel from first touchpoint to conversion.
  • Identify where users drop off, form hypotheses, and run experiments to improve conversion at every stage.
  • Build and maintain growth dashboards tracking funnel performance, cohort behavior, and unit economics.
  • Optimize for quality of conversions, not just volume.
  • Understand which acquisition channels and segments produce the highest-value users.
• Channel Diversification & Experimentation:
  • Design, launch, and measure rapid experiments across multiple channels: partnerships, organic and content marketing, community building, product-led growth, referral programs, and paid media.
  • Treat paid advertising as one tool in the kit, not the default.
  • Systematically explore and validate new acquisition channels.
  • Build a repeatable experimentation framework: hypothesis → test → measure → scale or stop.
• Growth Strategy & Cross-Functional Collaboration:
  • Develop and own the growth strategy, working directly with the CEO and senior leadership to align acquisition goals with business objectives.
  • Collaborate with product, operations, and engagement teams to ensure growth experiments are operationally feasible and user experience is seamless.
  • Provide strategic direction and coordination to team members involved in campaign execution and digital marketing.

What Success Looks Like:

• Measurable improvement in cost per acquisition and cost per qualified conversion within the first 6 months.
• Improved stage-by-stage conversion rates backed by documented experiments and learnings.
• A scalable growth playbook and experimentation framework the organization can build on.

Qualifications

• 3–6 years of experience in growth marketing, performance marketing, or user acquisition in a fast-paced, data-driven environment.
• Demonstrated track record of designing and executing experiments that moved key business metrics (conversion, retention, revenue).
• Strong understanding of full-funnel thinking: you work in conversion rates, cohort analysis, and unit economics.
• Hands-on proficiency with analytics and experimentation tools (e.g., Google Analytics, Mixpanel, Amplitude, Optimizely, or equivalent).
• Ability to work across both paid and organic acquisition channels with a systematic test-and-learn approach.
• Excellent communication skills in English; comfortable presenting strategies and results to C-level leadership.
• Self-starter who thrives with autonomy, moves fast, and is comfortable with ambiguity.

Nice to Have

• Background in gaming, consumer apps, marketplaces, or other high-velocity user acquisition environments.
• Experience in healthcare, health-tech, or regulated industries.
• Familiarity with multi-sided platforms (connecting multiple user types).
• Working knowledge of SQL or data visualization tools.