Senior User Acquisition Manager (Brazilian Market)

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:

About the role

We are looking for a Senior User Acquisition Manager to launch and own Brazil for one of our core D2C subscription products. We are not present in Brazil yet - you will open the market from zero and own everything that follows: our presence and subscription volume across all paid sources, local ad networks alike. The goal is explicit: take Brazil from launch to a seven-figure monthly budget.

This is a hands-on role suited for someone who has already launched or scaled Brazil at large scale and deeply understands the Brazilian audience and advertising landscape. You are expected to make independent, data-driven decisions, present a clear weekly country strategy, and deliver consistent, predictable growth - performance instability and unresolved issues are not acceptable. The bar is high and so is the upside - performance here is directly and significantly rewarded, and strong operators take on bigger scope fast.

Responsibilities
Country Ownership & Growth

• Launch Brazil as a new market and own its subscription volume and growth targets across all paid sources.
• Define and execute the country strategy - channels, audiences, creatives, and measurement - scaling to a seven-figure monthly budget.
• Own budget allocation across channels, ensuring efficient CAC and positive ROAS.
• Prepare and present a clear weekly country strategy with results and next steps.

Channel & Local-Network Strategy

• Run and optimise campaigns across global platforms active in Brazil.
• Identify, test, and scale Brazilian local ad networks and traffic sources beyond the global platforms.
• Own relationships with local platforms and vendors that move the country's volume.

Audience & Creative Localisation

• Use deep knowledge of the Brazilian audience to define angles, offers, and creative briefs.
• Work closely with the creative team to produce Brazil-specific creatives in language, culture, and format.
• Continuously test and iterate localised creatives and messaging based on performance.

Analytics & Performance

• Build custom performance models, analyses, and reporting in Excel, Tableau, and Mixpanel.
• Drive efficient CAC and positive ROAS with growth plans grounded in LTV:CAC and ARPU.
• Partner with the data team to apply attribution insights to country-level scaling decisions.

Qualifications
Must-Have Experience

• 3+ years of hands-on paid user acquisition for D2C subscription products (web-to-web).
• Proven track record launching and scaling Brazil as a market, with ownership of country-level targets and results.
• Experience managing $100k+ in monthly ad spend with clear ROI accountability.
• Hands-on experience with Brazilian local ad networks and traffic sources beyond the global platforms.
• Deep knowledge of the Brazilian audience - segments, messaging, and creative codes that convert.
• Fluent Brazilian Portuguese plus working English for stakeholder communication.
• Advanced Excel skills plus proficiency in Tableau and Mixpanel - you build your own performance models and frameworks.

Operating Attributes

• Results-driven with full accountability for the country's performance, regardless of source mix.
• Highly analytical - every budget, scaling, and kill decision is grounded in data, not intuition alone.
• Autonomous and proactive - runs the market with minimal oversight and surfaces opportunities before being asked.
• Fast under load - runs multiple channels, tests, and reporting streams in parallel without letting quality slip.
• Clear, direct communicator - presents country strategy, results, and recommendations to stakeholders.

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:

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)
• Hiring Manager Interview (60 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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