Senior User Acquisition Manager (Web

500M+ downloads. 80M+ monthly users. A decade of building – and we’re still accelerating.

Flo is the world’s #1 health & fitness app worldwide on a mission to build a better future for female health. Backed by a $200M investment led by General Atlantic, we became the first product of our kind to reach a $1B valuation in 2024 – and we’re not slowing down.

With 7M paid subscribers and the highest-rated experience in the App Store’s health category, we’ve spent 10 years earning trust , we’re building the next generation of digital health – AI-powered, privacy-first, clinically backed – to help our users know their body better.

The job

• Plan, execute, and scale web user acquisition campaigns across Meta (Facebook/Instagram), Google Ads, Tik Tok, and Snapchat — building a scalable UA engine
• Own your strategy and KPIs end-to-end: we provide the resources and the "why," you define the "how." No hand-holding, no micro-management — just results
• Monitor and optimize account structure, bidding models, and audience segmentation across platforms
• Lead creative testing frameworks — build and manage scalable systems for testing high volumes of creatives, identify what wins and why, and replicate success at scale
• Drive incremental growth through performance-focused strategy and rapid experimentation
• Own dynamic budget allocation to maximize ROAS
• Use AI tools and automation to streamline reporting, creative testing analysis, campaign optimization, and other recurring UA workflows
• Collaborate closely with analytics, creative, Mar Tech, and growth teams — guide creative focus, forecast asset delivery, and write clear technical requirements
• Dig into LTV, monetization, and web funnels; when a number moves, you're the first to ask why
• Generate insights from performance data, proactively surface opportunities, and produce regular performance reports and strategic recommendations
• Stay current on industry trends, platform updates, evolving privacy regulations, and emerging AI capabilities relevant to performance marketing

• 5+ years of performance marketing experience in user acquisition, ideally in high-growth environments
• Expert-level experience managing campaigns across Meta Ads and/or Google Ads (incl. Dem Gen/YT) at scale, with hands-on experience in Tik Tok Ads and/or Snapchat Ads
• Proven track record managing significant monthly budgets and optimizing for ROAS, CPA, and LTV
• Solid understanding of web attribution principles and experience with tracking/analytics platforms
• Proficiency in BI tools (Looker, Tableau, PowerBI, or similar); comfortable pulling and analyzing data via SQL and/or advanced Excel or Google Sheets
• Practical experience using AI tools to automate or accelerate marketing workflows — reporting, creative analysis, campaign optimization, or process automation more broadly
• Strong communication and project management skills — able to sell ideas and negotiate priorities cross-functionally with stakeholders who don't report to you
• Comfortable with ambiguity: when the roadmap shifts or a problem has no clear playbook, you build the solution rather than wait for one
• Direct communicator who gives and welcomes honest feedback; willing to challenge a broken process or a wrong call
• You care about how UA affects LTV, product retention, and the business bottom line — business owner first, media buyer second
• Upper-intermediate or advanced English proficiency
• Ability to conduct market research and competitor analysis
• Experience in healthtech, wellness, or other strictly regulated verticals is a strong advantage

Salary Range - gross per month (ranges may vary based on skills and experience)

How we work

We’re a mission-led, product-driven team. We move fast, stay focused and take ownership – from brief to build to impact. Debate is encouraged. Decisions are shared. We care about craft, ship with purpose, and always raise the bar.

You’ll be working with people who take their work seriously, not themselves. It takes commitment, resilience, and the drive to keep going when things get tough. Because better health outcomes are worth it.

What you'll get

We support impact with meaningful reward. Here’s what that looks like:

• Competitive salary…