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Alternance - Traffic Manager Junior - APP Growth & SEO (F/H/X)

SEPHORA • Neuilly-sur-Seine, Île-de-France, France

Growth MarketingJuniorOn-siteFull time€18K - €22K
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App GrowthSEOMobile MarketingAlternanceOn-site€18K-€22K/yearLuxury Retail

The Challenge

Sephora is the world's largest beauty community with 56k employees across 35 countries. You'll own mobile app acquisition and SEO performance for one of luxury retail's most competitive digital properties, reporting directly on download rates, retention, and organic visibility.

Your Mission

First 3 Months
1

Become fluent in App Store Optimization (ASO) strategy and execute initial recommendations on Sephora app metadata/creatives

2

Set up and monitor core dashboards for App Download KPIs (CPI, ROAS, retention) and SEO metrics (traffic, indexation, Share of Voice)

3

Execute 2-3 A/B tests on SEO/GEO optimizations and document learnings with recommendations

4

Support agency on 4+ mobile acquisition campaigns across Google UAC, Meta, TikTok, and Apple Search Ads

By 6 Months
1

Own ASO strategy and roadmap for app visibility improvements, tracking conversion lift month-over-month

2

Identify and implement 5+ high-impact SEO/GEO opportunities with measurable traffic gains

3

Establish performance benchmarking and best practices documentation shared with European markets

4

Lead cross-functional alignment between Creative, CRM, and Product teams on post-install engagement initiatives

KPIs You'll Own

Cost Per Install (CPI)

Track acquisition efficiency across all mobile channels and optimize spend allocation.

Return on Ad Spend (ROAS)

Measure revenue generated per dollar spent on app download campaigns.

App Retention Rate

Monitor D1, D7, D30 retention to validate product-market fit post-acquisition.

Organic Traffic & Share of Voice (SEO)

Measure website visits from search and competitive keyword visibility.

App Download Volume

Track total installs and month-over-month growth across iOS and Android.

Tools & Stack

AppsFlyerGoogle AnalyticsGoogle AdsSemrushBotifyMeta Ads ManagerTikTok AdsApple Search Ads

Your Team

Your Manager

Traffic Manager or Growth Lead (not specified)

Current Team

Mobile marketing team + SEO specialists + Creative and CRM teams (cross-functional)

New backfill for 12-24 month alternance position starting September 2026

The Package

Salary

€18K-€22K/year

Remote

On-site, Neuilly-sur-Seine, ÃŽle-de-France

Benefits & Perks

Access to Sephora's global community and 500+ beauty brands
Mentorship from luxury retail's largest digital operation
International environment with exposure to 35+ country markets
Learning on cutting-edge mobile growth and SEO platforms
Potential conversion to permanent role post-alternance

Company Intelligence

Sephora is the world's largest beauty community with 56,000 employees across 35 countries and 500+ brands. Founded in 1969 in Limoges and part of LVMH since 1997, they drive omnichannel luxury beauty retail at scale with mission-driven inclusion and diversity.

Founded

1969

Team Size

56000

Customers

Global beauty consumers via 500+ brand partnerships

Culture

Authenticity, diversity, inclusion, individual recognition, positive impact

Is This Role For You?

For You If
  • You're pursuing a Master's in commerce, communication, or digital marketing and want real growth marketing experience
  • You're data-obsessed and comfortable building/maintaining dashboards and analyzing KPIs across multiple channels
  • You have hands-on experience or strong appetite for mobile app marketing (UAC, Meta App Campaigns, ASO)
  • You're fluent in English and thrive in fast-paced, international, cross-functional environments
Won't Work If
  • You prefer fully remote work—this is 100% on-site in Neuilly
  • You lack English fluency or avoid international/multicultural teams
  • You're not comfortable with hands-on analytics tools and KPI tracking

Interview Process

1

Initial Screening

Phone/video call to assess growth marketing knowledge and AppsFlyer/Semrush familiarity

2

Case Study or Test

Analyze a sample app acquisition or SEO scenario and present recommendations

3

Team Interview

Meet with Traffic Manager and/or SEO lead to discuss strategy and fit

4

Final Discussion

Confirm logistics, alternance terms, and career expectations

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.

A/B testingFunnel optimizationSQL & analyticsPaid acquisitionProduct-led growth
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Alternance - Traffic Manager Junior - APP Growth & SEO (F/H/X) at SEPHORA (18K-22K EUR) | Growth.Talent | Growth.Talent