Senior User Acquisition Manager (Facebook)
External
Ruby-labs · SerbiaPrepare for this interview
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About the role
Ruby Labs is a leading technology company specialising in innovative consumer products across multiple technology sectors. The company focuses on D2C (Direct-to-Consumer) subscription products. 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/ We are looking for a Senior User Acquisition Manager to own and scale TikTok as a performance channel for one of our core D2C subscription products. You will be fully responsible for the channel end to end - strategy, scaling it to a 7-figure budget, campaign structures, creative testing, and consistent, high-ROI growth across multiple geos, driving subscriptions through web funnels. This is a hands-on role suited for someone who runs a channel like a business, not a set of campaigns. You are expected to make independent, data-driven decisions, present a clear weekly strategy, and keep performance stable.
Responsibilities
- Channel Ownership & Performance
- Own and optimise the Facebook ad account end to end - structure, bidding, budget allocation, scaling.
- Maintain high subscription volume while driving efficient CPA and positive ROAS.
- Prepare and present a clear weekly channel strategy with results and next steps.
- Testing & New Approaches
- Continuously test new campaign structures, audiences, bidding strategies, and placements.
- Identify and pilot new approaches before performance plateaus, scaling what works.
- Run structured creative testing to find winning angles, hooks, and formats.
- Creative Collaboration
- Work closely with the creative team to develop high-performing ad creatives.
- Provide data-driven feedback on angles and messaging to guide production.
- Manage creative fatigue proactively, rotating and refreshing at high spend levels.
- Analytics & Data
- Build custom performance models, analyses, and reporting in Excel, Tableau, and Mixpanel.
- Develop growth plans based on CPA, ROAS, and ARPU cohort data with the data team.
- Own the channel testing roadmap: audiences, bidding, geo-expansion, and landing funnels.
Requirements
- Must-Have Experience
- 3+ years of hands-on paid social experience, with Facebook as a primary channel you have owned.
- Experience managing six-figure monthly ad spend on Facebook with clear ROI accountability.
- Proven track record maintaining high volumes profitably while continuing to scale.
- Experience driving subscriptions through web funnels (web-to-web) for D2C products.
- Deep Meta platform knowledge: account structures, audience targeting, bidding strategies, and creative testing methodology.
- Multi-GEO experience running and scaling campaigns across multiple countries.
- Advanced Excel skills plus proficiency in Tableau and Mixpanel - you build your own performance models and frameworks.
- Operating Attributes
- Autonomous and proactive - takes full ownership of the channel and operates with minimal oversight.
- Highly analytical - every scaling and kill decision is grounded in data, not intuition alone.
- Fast under load - runs multiple campaigns, tests, and reporting streams in parallel without letting quality slip.
- Always testing - looks for new approaches beyond what already works instead of defending the status quo.
- Clear, direct communicator - presents insights, results, and recommendations to stakeholders.
- Location
- Ruby Labs operates within the CET (Central European Time) zone. Applicants from any country are welcome to apply for the position as long as they are located within approximately ± 4 hours of CET. This ensures optimal collaboration and communication during working hours.
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