Senior User Acquisition Manager (Facebook)
At a glance
Senior Growth Marketing role at Ruby Labs. Remote, Ukraine · full-time.
Pay not stated Growth Marketing salary
Growth Roles summary, based on the employer's posting.
What you'll do
- Run the Facebook account end to end, managing structure, budgets, bidding, and geographic allocation
- Grow subscription volume while protecting target CPA, cohort ROI, and delivery stability at high spend
- Maintain ongoing tests across creatives, bidding approaches, placements, countries, languages, and campaign structures
- Shape channel creative direction, then give the creative team feedback grounded in performance data
- Use BI cohort revenue to decide what scales or stops, breaking results down by country, creative, and bid level
What you bring
- At least two years personally managing Facebook as your main acquisition channel
- Direct ownership of more than $400K in monthly Meta spend with CPA and ROI accountability
- Experience driving trials or subscriptions through web funnels or subscription apps for D2C products
- Background scaling campaigns across multiple countries and languages at the same time
- Daily use of Claude, ChatGPT, or comparable AI tools for analysis, reporting, and automation
Who this fits
You’ll suit this role if you make independent scale-or-stop decisions, plan ahead, and can manage many campaigns and tests without losing quality. You need working English at B2+ level and must be located within roughly four hours of CET. The role is remote and offered through an independent contractor agreement.
From the employer
About us
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/
About the role
We are looking for a Senior User Acquisition Manager to own and scale Facebook(Meta) for one of our core D2C subscription products. The funnel is simple: ad → quiz → trial → subscription (web-to-web). The scale is not: 40+ countries, 20+ languages, one of the largest Meta budgets in its category.
You will be measured on two numbers: daily subscriptions and cohort ROI — not clicks, not CTR, not platform-reported ROAS.
You'll operate with serious leverage: an API-driven build pipeline and AI tooling handle the mechanical work. Your job is judgment — what to scale, what to cut, where the next dollar goes. The bar is high and so is the upside: performance here is directly and significantly rewarded, and strong operators take on bigger scope fast.
Key Responsibilities
Channel Ownership: Own the Facebook account end to end — structure, budgets, bidding, geo mix — keeping subscription volume high at target CPA and ROI.
Scaling & Stability: Scale winners without breaking CPA; keep delivery stable at high spend and catch problems before they cost money.
Testing: Run a continuous testing pipeline — creatives, structures, bidding (highest volume / cost cap / bid cap), placements, geos and languages. Kill fast, scale what works.
Creative Ideas: Own the creative direction for the channel — hooks, angles, formats — and brief the creative team with data-backed feedback.
Working with Data: Make decisions on real cohort revenue from our BI, not on Ads Manager numbers. Break performance down to country × creative × bid level and build your own reports.
Account Health: Protect ad accounts, pages and Business Managers — policy-safe copy and landings, appeals, backups.
AI & Automation: Automate every repeatable part of your workflow with AI and keep manual work to a minimum.
Qualifications
Must-Have Experience
2+ years hands-on Facebook as the primary channel you personally owned.
Personally owned $400K+/month on Meta with direct accountability for CPA / ROI targets — your budget, not your team's or agency's total.
Subscription funnels: drove subscriptions or trials through web funnels (web-to-web) or subscription apps for D2C products.
Multi-GEO: ran and scaled campaigns across many countries and languages at once.
Analytics: comfortable with cohorts, LTV, payback and the gap between platform and BI numbers.
AI in daily work: uses Claude, ChatGPT or equivalents daily for analysis, reporting and automation — not just aware of them.
Working proficiency in English (B2+).
Not a Fit
Mostly agency experience (spread across many small clients)
E-commerce / catalog-only background (DPA, Shopping, basket ROAS)
Who You Are
Full owner of your zone — from diagnosis to result, no reminders needed
Analytical — every scale or kill decision has a period, a threshold and a dollar amount behind it
Plans ahead — runs the channel against a plan weeks and months out
Fast under load — many campaigns and tests in parallel without quality slipping
Ambitious — wants to grow fast and prove it with performance
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.
Benefits
Discover the perks of being part of our vibrant team! We offer:
Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance.
Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days.
Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge.
Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them.
Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere. Read more about it here: https://docs.google.com/document/d/1nkrN76JlZkbKj9WSOhlT1_mni_CZeDkHdwfIjPXVwvk/preview?tab=t.0#heading=h.ndsdl4wapxtt
Be part of our fast-growing team and seize this excellent opportunity for personal and professional growth!
Interview Process
After submitting your application, we conduct a thorough review which typically takes 3 to 5 days, but may occasionally take longer due to the volume of applications received. If we see a potential fit, we proceed with the following steps:
Recruiter Screening (40 minutes)
Technical Interview (60 minutes)
Final Interview (45 minutes)
Life at Ruby Labs
At Ruby Labs, we move fast, aim high, and expect the same from our team. We’re not here to play small—we’re here to build, grow, and win. That means we look for people who are ambitious, driven, and ready to give their best every single day.
This is a place for individuals who thrive under pressure, embrace challenges, and see opportunity in every obstacle. If you’re hungry to achieve, motivated by impact, and want to grow at the speed of your own ambition, Ruby Labs offers the platform to make it happen.
Here, effort is matched with reward. We recognize those who go all in and deliver results, and we create space for people who want more—more responsibility, more growth, and more success.
All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.
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