Description

Consultant Paid Media avec plus de 7 ans d’expérience dans la conception et l’optimisation de stratégies d’acquisition online (Search, Shopping, Display, Social Ads). J’ai géré des budgets allant de 20 000 € à plus de 200 000 € par mois sur Google Ads, DV360, Amazon DSP et les principaux réseaux sociaux, en obtenant régulièrement :

des hausses de ROAS entre +30% et +70% après refonte de comptes,

des baisses de CPA de 20 à 50%,

des croissances de chiffre d’affaires e‑commerce à deux chiffres sur 3 à 6 mois.

Mon travail repose sur une exploitation rigoureuse de la donnée (data‑driven) : A/B tests structurés, suivi des conversions, modélisation simple des incréments, reporting clair pour la prise de décision. Spécialiste des architectures de campagnes e‑commerce, je maîtrise Google Merchant Center, la gestion des flux produits et l’activation de catalogues complexes (multi‑marques, multi‑pays). Bilingue français/anglais, j’interviens autant sur l’audit stratégique que sur l’exécution opérationnelle quotidienne.

Industry field of expertise

Languages

English
Native or bilingual
Spanish
Conversational

Workplace preferences

Can work on-site

Paris (up to 50km)

Jonas Cohen
Freelance Paid Media Consultant
CONSULTING AND AUDITS
January 2026 - Today (5 months)
Paris, France
Campaign Management
Managed end‑to‑end paid media strategy and hands‑on execution for SME and mid‑market clients across Search, Shopping and Social. Led account (re)structures, keyword management, bid strategies and creative testing to unlock scalable, profitable growth.

Performance & ROAS
Handled monthly budgets from 5k€ to 50k€ per client, delivering frequent ROAS uplifts of +30–70% and CPA reductions of 20–40% after account restructuring and optimisation sprints.

E‑commerce & Shopping
Advised e‑commerce clients on product feed optimisation, Google Merchant Center setup and shopping campaign architecture to maximise catalog coverage, margin and revenue.

Reporting & Data‑Driven Optimisation
Built performance dashboards in Looker Studio / GA4 and translated raw data into clear, actionable recommendations for clients. Ran structured A/B tests and audience experiments to prioritise the highest‑impact optimisations.
Google AdWords Réseaux sociaux Google Shopping Stratégie d'acquisition ROAS
Adlook
Sales Manager
January 2025 - September 2025 (8 months)
Paris, France
Campaign Performance & Optimisation
Owned performance for a portfolio of programmatic accounts with 20k€+ monthly budgets, monitoring pacing, identifying anomalies and executing real‑time optimisations to hit and exceed client KPIs.

Data Analysis & Insight
Translated campaign data into clear, actionable insights through weekly performance reports and ad‑hoc analyses. Proactively flagged issues, recommended optimisations to clients and internal teams, and quantified expected uplift.

Testing & Playbooks
Designed and documented test plans (A/B tests, audience splits, creative variants) and competitive benchmarks, creating more than 10 performance playbooks to support client retention, upsell and cross‑sell.

Consultative Sales
Worked closely with marketers and decision‑makers to align media strategies with business objectives, positioning Adlook as a performance partner rather than a simple media vendor.
Programmatique Optimisation Analyse de données stratégie média Reporting
Olyn Group
Key Account Manager
January 2022 - January 2025 (3 years)
Paris, France
Multi‑Channel Campaign Management
Managed end‑to‑end paid media activity across Search, Social, Display and Programmatic for 30+ accounts in Finance, Retail, Hospitality, FMCG and Health, with annual budgets of 100k€ à 2,4 M€.

Optimisation & Testing
Executed ongoing optimisations (keyword expansion, audience refinement, bid adjustments, creative A/B testing, budget reallocations) based on performance data, contributing to 80%+ client retention on the portfolio.

Market & Search Intelligence
Conducted deep‑dive competitor and search trend analyses to identify new keyword opportunities, white‑space markets and campaign expansion angles. Fed these insights back to product and strategy teams.

Performance Reporting & Stakeholder Management
Delivered weekly and monthly reports (GA4, Looker Studio, Tableau), turning complex datasets into clear recommendations for marketing, sales and leadership. Coordinated account health reviews and audits to anticipate issues before they impacted performance.
Réseaux sociaux Gestion de campagnes Analyse de performance Key Account Management DV360