The Challenge
TWC (Rosk x Brigad) is scaling fast across mobile health & foodtech. You'll own a real growth funnel—not filing spreadsheets—testing acquisition channels, crafting high-converting copy, and shipping experiments that directly impact user growth.
Your Mission
Launch and analyze 5+ growth experiments across acquisition channels (paid, organic, partnerships) and document learnings in a shared playbook
Build and optimize 2-3 high-performing landing pages + email sequences with documented CTR, conversion rate, and CAC metrics
Set up or improve 2 key dashboards tracking funnel KPIs (CAC, CPL, CVR) and deliver weekly performance summaries to the team
Contribute to at least one major campaign from brief to launch (Meta/Google ads creative, copy, targeting, performance monitoring)
Identify and validate 3 new growth channels or messaging angles with full ROI analysis; implement the top performer at scale
Own end-to-end optimization of one core user acquisition or activation lever, demonstrating measurable improvement vs. baseline (e.g., +15% CVR, -20% CAC)
Build repeatable testing framework and process for the growth team; document 10+ learnings (do's/don'ts) that become team playbook
Present quarterly growth results to leadership with clear business impact: users acquired, cost per acquisition, funnel efficiency gains
KPIs You'll Own
CAC (Customer Acquisition Cost)
Track cost-per-user-acquired across all channels; optimize to improve efficiency and identify winning channels.
CVR (Conversion Rate)
Measure % of traffic converting at each funnel stage; A/B test copy, offers, and UX to lift conversion.
CTR (Click-Through Rate)
Monitor ad and email performance; iterate creative and messaging to improve engagement.
CPL (Cost Per Lead)
Benchmark lead generation efficiency; test channels and audiences to drive down cost while maintaining quality.
Retention / Activation Rate
Track user activation and early retention cohorts; test onboarding flows and re-engagement campaigns.
Tools & Stack
Your Team
Your Manager
Growth Marketing Lead / Head of Growth (not specified)
Current Team
Small, hands-on growth team (part of 60-person company); collaborative, exacting but supportive culture
New internship role; part of rapid scaling phase
The Package
Salary
€1.2K-€1.6K/month
Remote
On-site, Paris. Full-time internship, 6 months (April 2026 start).
Benefits & Perks
Company Intelligence
TWC operates Rosk and Brigad, mobile-first platforms in health and foodtech. With 60 people and rapid growth, they're focused on user acquisition and engagement across multiple consumer verticals.
Team Size
60
Customers
Mobile app users (health, foodtech verticals)
Culture
Direct, test-and-learn, data-obsessed, exacting but supportive. No fluff.
Is This Role For You?
- You're comfortable with ambiguity and own your learning—you'll figure out tools by doing, not training modules
- You think like a scientist: form hypothesis, test, measure, iterate, repeat. Spreadsheets and dashboards excite you
- You can write—landing page copy, email subject lines, ad headlines—and you understand persuasion + psychology
- You want real responsibility as an intern, not coffee runs; you're ready to pitch ideas and defend them with data
- You need hand-holding or step-by-step instructions; this team is lean and expects autonomy
- You're not comfortable with failure or ambiguity; testing means most ideas won't scale
- You don't care about metrics or ROI; if you can't measure impact, you're in the wrong role
Interview Process
Application + Portfolio Review
Submit CV, cover letter, and 1-2 examples of growth work (campaigns, landing pages, content, analysis) you've done or contributed to
Screening Call
30 min with Growth Lead: discuss growth mindset, past projects, and why you're excited about Rosk/Brigad
Growth Case Study
Short async take-home: analyze a funnel or campaign, propose 3 optimization hypotheses, and present findings
Team Interview
Meet 1-2 growth team members; discuss collaboration, ideas, and culture fit
Interested in this role?
Apply now and hear back within days, not weeks.
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About Growth Marketing Roles
Growth marketers drive user acquisition, activation, and retention through data-driven experimentation. They sit at the intersection of product, data, and marketing — running A/B tests, building funnels, and scaling what works.