Julien Mathieu
AeroLeads people directory · profile

Julien Mathieu Email & Phone Number

Head of Media @ Groupe Galeries Lafayette | Media Strategy, Media Buying at Groupe Galeries Lafayette
Location: Paris, Île-de-France, France 9 work roles 4 schools
1 work email found @havasmedia.com LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email

Work email j****@havasmedia.com
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Head of Media @ Groupe Galeries Lafayette | Media Strategy, Media Buying
Location
Paris, Île-de-France, France
Company size

Who is Julien Mathieu? Overview

A concise factual answer block for searchers comparing this professional profile.

Quick answer

Julien Mathieu is listed as Head of Media @ Groupe Galeries Lafayette | Media Strategy, Media Buying at Groupe Galeries Lafayette, a company with 6891 employees, based in Paris, Île-de-France, France. AeroLeads shows a work email signal at havasmedia.com and a matched LinkedIn profile for Julien Mathieu.

Julien Mathieu previously worked as Head of Media at Groupe Galeries Lafayette and International Business Director at Havas International - Paris. Julien Mathieu holds Certification Purple Dauphine, Business Administration And Management, General from Université Paris Dauphine.

Company email context

Email format at Groupe Galeries Lafayette

This section adds company-level context without repeating Julien Mathieu's masked contact details.

{first}.{last}@havasmedia.com
86% confidence

AeroLeads found 1 current-domain work email signal for Julien Mathieu. Compare company email patterns before reaching out.

Profile bio

About Julien Mathieu

At the helm of Groupe Galeries Lafayette's media strategy, my role is to steer online and offline campaigns with a focus on data-driven engagement and innovative advertising solutions. With a strong expertise in programmatic, social media, and paid search, our team has elevated ad performances as for example: by 20% of ad attention rate, showcasing a significant enhancement in audience engagement.My tenure in the media domain is marked by the successful integration of social platforms like TikTok Ads and advanced geofencing techniques, which have notably refined our drive to store initiatives. Collaborating with luxury brands, we've launched co-branding campaigns that merge tradition with digital activations, underpinning my commitment to evolving the media narrative and achieving excellence in omnichannel marketing strategies.

Listed skills include Sem, Digital Strategy, Advertising, Media Planning, and 38 others.

Current workplace

Julien Mathieu's current company

Company context helps verify the profile and gives searchers a useful next step.

Groupe Galeries Lafayette
Groupe Galeries Lafayette
Head of Media @ Groupe Galeries Lafayette | Media Strategy, Media Buying
france
Employees
6891
AeroLeads page
9 roles

Julien Mathieu work experience

A career timeline built from the work history available for this profile.

Head Of Media

Current

Paris Area, France

- In charge of online & offline media strategies and media buying for Galeries Lafayette- Addressed data-driven strategies to drive the engagement across the funnel throughprogrammatic, social, content syndication and paid search- Directed new standards of performances (viewability, ad fraud… time-in-view) with results:+40% average viewability of our ads..

Aug 2017 - Present

International Business Director

Puteaux, Île-de-France, France

- Business unit management; directing a team of 10+ account assistants, executives and managers in both digital and offline media strategy - Strategic multi media consulting, planning and implementation across a diversified portfolio of clients in the luxury, wealth management and telecommunications sectorsSupervising media buying (across central media.

Oct 2016 - Aug 2017

International Account Director

Puteaux, France

- Managing international (Online & Offline media) advertising campaigns (ROI & Branding) including: global strategy and media mix recommendation, media planning, media buying and post buying review- Cross device Digital strategy (Display, Programmatic, Search advertising, Social media and tracking)- Innovation & Data management- Coordination & media.

Sep 2012 - Oct 2016

Account Manager

Issy-les-Moulineaux, France

- Managing display operations on Microsoft Network (MSN.fr, Windows Live, Skype, XBOX...)- Delivering innovative and media strategies adapted to clients objectives (awareness, recruitment, image...) - Providing performance analysis and recommendations, setting up Business Plans and forecast resultsClients: eDarling, Adopteunmec, VistaPrint...

Jan 2012 - Sep 2012

Digital Account Manager

Levallois-Perret, France

SEA (Search):- Optimising key metrics of paid search campaigns- Developing expertise and best practices in Search Marketing campaign optimization- Coordinating projects: Test and learn of the Search Engine new productsDisplay:- Managing display operations - Delivering innovative and media strategies adapted to clients objectives (awareness, recruitment.

Jun 2010 - Jan 2012

Search Engine Marketing Consultant

Paris Area, France

Position and missions:- Operational Account management- Issuance of strategic recommendations for clients accounts and prospects about Search Engine Marketing (SEM)- Management of the work schedule and customer relationship- Checkup, analysis and recommendations about any action needed- Launching and management of sponsored links campaigns (SEM) on every.

Jul 2008 - Jun 2010

Marketing & Partnerships Manager

Paris Area, France

SPIR Communication Media Division (paper, web and mobile) in the employment market.TOP'annonces Job section- Search, recruit, evaluate, and negotiate partnership agreements with selected partners.- Development of selling tools for the sales team (Catalogue, special event products…).- Managing search marketing and ROI.

Mar 2008 - Jul 2008

Account Manager

Paris Area, France

The Demos Group is a training and publishing company. - Development of new business relationships and interacting with existing customers to increase sales and customer satisfaction.- Business development activities include: sourcing, cold calling new accounts, qualifying clients, identifying potential decision makers, establishing contact relationships.

Jan 2007 - Feb 2008

Junior Product Manager

Mediaplazza

Paris Area, France

MEDIAPLAZZA Nanterre, Junior Marketing Manager - Java Games Responsible for managing marketing communications, field marketing and channel marketing for Java Games.- Distribution channel development/management - Co-marketing programs with strategic partners - Integrated marketing communications with a focus on direct marketing, online marketing programs.

Mar 2006 - Oct 2006
Team & coworkers

Colleagues at Groupe Galeries Lafayette

Other employees you can reach at groupegalerieslafayette.com. View company contacts for 6891 employees →

4 education records

Julien Mathieu education

Mba, International Marketing

Activities and Societies: Marketing des Services, Marketing Industriel, Marketing du Luxe, Marketing du Sport, Marketing Strategique.

FAQ

Frequently asked questions about Julien Mathieu

Quick answers generated from the profile data available on this page.

What company does Julien Mathieu work for?

Julien Mathieu works for Groupe Galeries Lafayette.

What is Julien Mathieu's role at Groupe Galeries Lafayette?

Julien Mathieu is listed as Head of Media @ Groupe Galeries Lafayette | Media Strategy, Media Buying at Groupe Galeries Lafayette.

What is Julien Mathieu's email address?

AeroLeads has found 1 work email signal at @havasmedia.com for Julien Mathieu at Groupe Galeries Lafayette.

Where is Julien Mathieu based?

Julien Mathieu is based in Paris, Île-de-France, France while working with Groupe Galeries Lafayette.

What companies has Julien Mathieu worked for?

Julien Mathieu has worked for Groupe Galeries Lafayette, Havas International - Paris, Havas Media International - Paris, Microsoft, and Starcom.

Who are Julien Mathieu's colleagues at Groupe Galeries Lafayette?

Julien Mathieu's colleagues at Groupe Galeries Lafayette include Melissa Cavret, Catherine Desbois, Chorouk Ait Ouballa, Laurence Zoll, and Béatrice Lebreton.

How can I contact Julien Mathieu?

You can use AeroLeads to view verified contact signals for Julien Mathieu at Groupe Galeries Lafayette, including work email, phone, and LinkedIn data when available.

What schools did Julien Mathieu attend?

Julien Mathieu holds Certification Purple Dauphine, Business Administration And Management, General from Université Paris Dauphine.

What skills is Julien Mathieu known for?

Julien Mathieu is listed with skills including Sem, Digital Strategy, Advertising, Media Planning, Display Advertising, Digital Marketing, Google Adwords, and Online Advertising.

Find 750M verified contacts

Search by job title, company, industry, location, and seniority. Export verified B2B contact data when you need it.

People with similar names

Check these profiles if this is not the Julien Mathieu you were looking for.

View similar profiles