Senior User Acquisition Manager - Ruby Labs

About Us

Ruby Labs creates and operates innovative consumer products 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.

About the Role

We’re looking for a Senior User Acquisition Manager to take full ownership of Meta paid traffic and drive subscriptions through web funnels within a single project. Meta is the core channel, with room to expand into additional sources such as AppLovin, X, TikTok, and Snapchat. You'll manage 7-figure budgets across multiple GEOs, decide what to test, scale, and cut, and be accountable for results.

Performance is measured on real business metrics (CPA, ROAS, and cohorts), not surface-level platform numbers. We are an AI-first team, so we expect you to use Claude and automation to move faster and streamline your day-to-day workflows.

Key Responsibilities

• Manage and scale paid social campaigns on Meta end-to-end: account structure, bidding, budget allocation, optimization, and scaling.
• Expand into additional sources (AppLovin, X, TikTok, Snapchat) and identify new growth levers: audiences, formats, placements, and campaign types.
• Scale spend across multiple GEOs while holding CPA and ROAS targets.
• Run structured creative testing with the creative team across all channels, with clear hypotheses and simple scale/kill rules.
• Collaborate with the data team on reports, cohort analysis, and deep dives; quickly diagnose drops and spikes and act on them.
• Manage signal quality: conversion events, event value, purchase optimization, and attribution.
• Protect account health: manage ad account structure, backups, and policy compliance.
• Liaise with platform reps on betas, new campaign types, and escalations.
• Leverage Claude and automation (skills, scripts, workflows) to accelerate builds, reporting, and optimization.
• Prepare clear growth strategies, document tests and learnings, and monitor market trends and competitors.

Qualifications

• Paid Social Experience: 3+ years of hands-on experience managing paid social campaigns, with Meta as your primary platform (TikTok, Snapchat, Pinterest, or AppLovin experience is a plus) and a proven record of scaling budgets efficiently while maintaining strong ROI.
• High-Budget Management: Experience managing $500k+ in monthly ad spend, with consistent optimization and sustainable growth.
• Multi-GEO Expertise: Experience running and scaling campaigns across multiple countries and regions, making independent, data-driven scaling decisions.
• Strong Analytical Skills: Solid command of CPA, ROAS, and cohort analysis, proficiency in tools like Omni, Tableau, or Mixpanel, and the ability to build custom performance analyses.
• Meta Platform Knowledge: Deep understanding of account structures, audience targeting, bidding strategies, and creative testing methodologies.
• AI & Automation: Experience automating user acquisition workflows with AI, automated rules, or scripts, paired with an automation-first mindset.
• Autonomous & Proactive: Proven ability to take ownership, thrive in a fast-paced environment, and proactively spot opportunities for testing, optimization, and growth.
• Growth Mindset: Strong motivation to learn, experiment, and scale with a focus on long-term performance.
• Communication: Strong English communication skills with the ability to clearly present insights, results, and recommendations to stakeholders.

Location & Working Hours

Ruby Labs operates within the CET (Central European Time) zone. Applicants from any country are welcome as long as they are located within approximately ±4 hours of CET to support seamless collaboration.

Benefits

• Remote Work Environment: Work from anywhere within the target time zone range.
• Unlimited PTO: Take time off to recharge without counting days.
• Paid National Holidays: Paid time off to celebrate national holidays.
• Company-provided MacBook: Top-tier Apple hardware provided.
• Flexible Independent Contractor Agreement: Autonomy, flexibility, and contractor tax advantages.