Freelancer profile translated to English.

Description

Paid Media Consultant with over 7 years of experience in designing and optimizing online acquisition strategies (Search, Shopping, Display, Social Ads). I have managed budgets ranging from €20,000 to over €200,000 per month on Google Ads, DV360, Amazon DSP, and major social networks, consistently achieving:

ROAS increases between +30% and +70% after account redesigns,

CPA reductions of 20% to 50%,

Double-digit e-commerce revenue growth over 3 to 6 months.

My work is based on rigorous data exploitation (data-driven): structured A/B tests, conversion tracking, simple increment modeling, clear reporting for decision-making. Specialist in e-commerce campaign architectures, I master Google Merchant Center, product feed management, and the activation of complex catalogs (multi-brand, multi-country). Bilingual French/English, I am involved in both strategic audits and daily operational execution.

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 Ads Social Media Google Shopping Acquisition Strategy 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.
Programmatic Optimization Data Analysis Media Strategy 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.
Social Media Campaign Management Performance Analysis Key Account Management DV360