Position: Head of Growth

Company: Smash

Location: Paris, France

🏠 About Smash

Smash is a new venture founded by serial entrepreneurs with a proven track record of success.

We’ve raised €3.5M in pre-seed funding to build a world-class team and launch a portfolio of high-retention wellness apps with one goal: becoming the #1 global app studio for Health & Fitness.

Our model is creator-led: we partner with trusted experts, influencers, trainers, athletes, and sports clubs who have real connection with their communities. They bring the audience - we take care of everything else: product, tech, growth, and monetisation.

Our Mission & Values

At Smash, we think like athletes: we set bold goals, we execute with precision, and we improve continuously. We're creating a place where top talents-builders, makers, creatives-can thrive and design category-defining apps for millions.

We believe in:

• Simplicity, even in complex systems
• Boldness, to challenge the status quo
• Craft, to create delightful user experiences
• Resilience, to learn fast and grow stronger

💼 Your Role

As our Head of Growth, you will lead the acquisition, activation, and retention strategy for Smash’s mobile apps, with a strong focus on influencer marketing and strategic partnerships to drive authentic growth.

You’ll build and nurture relationships with trusted experts, influencers, and sports communities who are core to our creator-led model.

You will own the full growth funnel, leveraging deep expertise in user acquisition, brand building, retention, CRM, and especially influencer-driven campaigns to deliver high-impact results. You’ll collaborate closely with product, design, and engineering teams to maximise lifetime value and build a loyal user base.

Your Responsibilities:

• Lead mobile user acquisition: Develop and execute growth campaigns across TikTok, Instagram, Applovin, Meta, UAC, and emerging channels.
• Lead influencer marketing and partnerships: Develop and scale growth through authentic collaborations with influencers, trainers, athletes, and community leaders aligned with our brand.
• Optimise growth funnel: Manage ASO, search ads , and conversion rate optimisation tests.
• Web subscription funnels: design and optimise the journey from web campaigns (ads, SEO, email) to subscription signup and payment, leveraging analytics, A/B testing and attribution to maximise conversions
• Drive retention and engagement: Implement CRM strategies and automation to maximise user lifetime value and reduce churn.
• Creative skills: experienced in testing, optimising, and scaling ad creatives across social and traditional networks, with a strong eye for engagement and conversion
• Analyse and attribute: Use analytics and marketing attribution tools to measure performance, optimise spend, and automate UA workflows.
• Build brand awareness: Partner with design and content teams to create cohesive brand messaging and campaigns.