Growth Marketing Manager

ABOUT US

Ruby Labs is a leading tech company that creates and operates innovative consumer products. We offer a diverse range of opportunities across the health, education, and entertainment industries. Our innovative teams are driving the future of consumer-led products, and we're always looking for passionate individuals to join us. Learn more about our story at: https://rubylabs.com/about-us/

ABOUT THE ROLE

We are looking for a Marketing Growth Manager to join our Growth team at use.ai http://use.ai, one of Ruby Labs’ fastest-growing AI portfolio companies. This role owns and scales the entire paid user acquisition and creative testing engine, with direct accountability for CPA, conversion volume, and revenue growth.

This is a hands-on, execution-heavy role for someone passionate about performance marketing, creative experimentation, and data-driven growth. You will own the full funnel, from creative concept ideation through aggressive campaign scaling, acting as the bridge between creative production and performance marketing. You will work closely with the Lead Ad Creative Producer and serve as the final performance authority before campaigns scale to significant spend.

The ideal person for this role thrives in high-autonomy, high-expectation environments and is motivated by shipping fast, testing relentlessly, and scaling what works.

KEY RESPONSIBILITIES

- Own the entire creative testing funnel, from concept generation to winner identification.

- Design and execute a high-velocity growth engine with zero downtime in creative testing.

- Continuously generate and test 15–30 creatives in parallel, producing and validating 50+ concepts per day using AI tools.

- Define winners strictly (≥100 conversions in a single day at target CPA) and kill underperforming concepts quickly.

- Initiate aggressive scaling of validated concepts through creative, CTA, visual, actor/avatar, and environment variations.

- Launch parallel localization across priority ...