Growth Manager - US

Every cancer patient deserves access to treatment options. Massive Bio is an AI-powered precision medicine platform transforming how cancer patients discover and access clinical trials by eliminating the barriers of geography, financial constraints, and information asymmetry that have historically limited enrollment.

Founded in 2015 and headquartered in US, Massive Bio is scaling its impact globally by powering operations across multiple countries and bringing innovative cancer treatment options to a rapidly growing and diverse population of patients. Through our proprietary AI platform, we connect individuals to clinical trials worldwide and partner with leading pharmaceutical companies, contract research organizations (CROs), and healthcare systems to accelerate drug development and expand equitable access to cutting-edge therapies.

We're recognized as a leader in health-tech innovation. Massive Bio was featured as #4 in Fast Company's Startup 100 list for Turkey and has raised $24M total funding from impact-driven investors including Revo Capital, the International Finance Corporation, and Cavendish Impact Foundation, validating both our business model and our mission-driven approach.

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.

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.

Required

• 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.