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Sébastien CastelliSC

Sébastien Castelli

Supermalter

⚡LinkedIn Ads & Google Ads: B2B Lead Generation

€500/day
61 projects
Marseille 7e Arrondissement, FR
3-7 years

Average response time: A few days

Freelancer profile translated to English.
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About Sébastien

I help Service companies and B2B SaaS businesses generate revenue with a methodology tailored for B2B and quality content.

I am:
🎓 Certified by LinkedIn
🎓 Certified by Google
🎓 Graduated in digital marketing

Specifically, what I do is:
✅ Management/consulting on LinkedIn Ads & Google Ads.
✅ Content strategy for B2B companies.
✅ Design of landing pages and B2B social ads creatives.
✅ (Advanced) consulting on tracking and data analysis.

Two ways to collaborate:

**1. Done for you**: I take care of your entire advertising and content strategy.

**2. Done with you**: I work alongside you to develop and execute your lead and demand generation strategy.


👤 Add me on LinkedIn, I regularly post content on this topic. (Feel free to ask me your questions, it helps me find topics, and if I can help you, I'm happy to 🙂)

----
I have worked with these companies:

🏢 **Large Group**: Pernod Ricard.
⚕️ **Health & MedTechs**: Doctolib, Horus Pharma, Med it up.
🎓 **Training & EdTechs**: Kwark Education, Skills4All, Growth Acceleration, Early Metrics, Maars.
💵 **Finance & FinTechs**: Mambu, Numeral.io, Birdee, Tabesto.
💻 **Other Services & B2B SaaS**: Pitchy, Tomorro (ex Leeway), Waynium, Shizen, iBridgePeople.
📢 **Marketing Agencies**: Copernic, Influence4You, Rankwell, Mindfruits.
🏠 **Construction**: Maison.fr, AdValidem, Chantier.pro, Devis & Travaux.

+ MORE REFERENCES ON MY SITE
->
⭐ BOOK APPOINTMENT, DETAILS AND PRICES HERE ⭐
-> Request the presentation via Malt message


📧 Shall we discuss it in more detail via video call?
-> Request the presentation via Malt message
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Fluent

Can work on-site
Marseille 7e Arrondissement (up to 50km), Paris (up to 50km), Lyon (up to 50km), Bordeaux (up to 50km), Nice (up to 50km)

Experience

  • Doctolib France
    Paid Consultant (Google Ads + LinkedIn Ads + Meta Ads)
    MEDICAL
    October 2024 - December 2024 (2 months)
    Doctolib and the European leader in e-health, with the mission to facilitate access to care.

    Carried out a 3-month forecast mission to audit and propose strategic and technical recommendations regarding Ads for the B2B (finding new practitioners) and B2C (promoting the solution to the public) branches.
    B2B Lead Generation Lead Generation LinkedIn Ads B2B Growth Growth Marketing
  • Mambu
    B2B Ads Consultant (Google & LinkedIn)
    BANKING AND INSURANCE
    May 2025 - Today (1 year and 1 month)
    Mambu is the global leader in cloud banking, with over 260 clients worldwide and reaching 114 million end-users.

    Details of the support:
    Optimization of existing advertising accounts (Google & LinkedIn) to strengthen qualified lead generation in an international B2B context.

    Paid Levers
    Management of the Google Ads account in several target markets with fine segmentation by audience and intent.

    Management of the LinkedIn Ads account, with a particular focus on decision-makers in the Fintech, SaaS, and banking sectors.

    B2B Marketing Strategy Consulting: Support in transforming the conversion funnel, with better articulation between awareness, consideration, and conversion.


    Data & CRM
    Work on structuring marketing data: consistency of UTM parameters, user journey modeling, and event tracking.
    LinkedIn Ads Google AdWords B2B Marketing Lead Generation B2B Lead Generation
  • Kwark Education
    B2B Paid Marketing Consultant (Ads / Tracking / CRM / Content)
    EDUCATION AND E-LEARNING
    May 2024 - Today (2 years and 1 month)
    Kwark is an EdTech and consulting firm (51-200 employees) that supports its clients throughout the learning experience development process.

    Details of the support: Supporting the company in implementing a Paid strategy that generates genuine inbound requests (rather than low-intent leads).

    Paid Levers

    - Google Ads account management for a B2B account
    - LinkedIn Ads account management for a B2B account
    - B2B Marketing Strategy Consulting: Assisting the company in transitioning from a 100% "Lead Generation" (traditional) strategy to a hybrid "Demand Generation + Demand Capture" strategy.
    - B2B Content Strategy Consulting

    Data & CRM

    - Setting up the link between Hubspot and platforms to track Offline Conversions
    - Project for standardizing and collecting online data & URL parameters
    - Support in evolving reporting dashboards
    LinkedIn Ads Google AdWords Google Ads Campaign B2B Marketing Lead Generation

Reviews

5.0

Out of 21 ratings

A

Aurélien

NUMERAL group

Several weeks project

-

Reviewed on 3/6/2025

Since the beginning of our collaboration, Sébastien has successfully developed our LinkedIn and Google Ads accounts to make them a primary source of lead generation. His expertise is excellent, both technically and in suggesting complex strategies to articulate with equally complex business challenges. We are delighted to work together.
A

Aurélien

NUMERAL group

Reviewed on 9/17/2024

Sébastien manages our Google Ads account, and we are already considering extending the scope to LinkedIn Ads. He also intervened more punctually to review our ads tracking. He is very clear, has perfectly defined the challenges, and delivered as expected what was planned. Top-notch.

Recommendations

JH
Maxime CochiniMC
Jean-David Habib and 1 other person have recommended Sébastien

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Education

  • Automate ChatGPT
    SLN Academy
    2024
    Cette formation est conçue pour maîtriser pleinement ChatGPT et exploiter ses fonctionnalités avancées à travers plusieurs modules pratiques. Les bases sont posées avec une compréhension approfondie du fonctionnement de ChatGPT, suivie des 4 étapes essentielles pour créer du contenu de qualité. L'accent est également mis sur l'automatisation à travers divers outils, notamment pour la recherche de sujets, la rédaction de contenu, et la gestion des réseaux sociaux. Des notions clés comme la gestion des tokens OpenAI, la détection de contenu généré par IA, et la création de prompts de qualité sont couvertes. Enfin, les fonctionnalités avancées telles que GPT-4o, l'utilisation d'agents autonomes (Master AI), le multimodal et ChatGPT Memory sont abordées, offrant une maîtrise totale des outils d'automatisation et d'assistants AI.
  • Launch Your B2B Content Strategy
    Pierre Herubel
    2024
    Ce cours de Pierre Herubel (CMO +100K abonnés LinkedIn) explique comment mettre en place une stratégie de contenu B2B pour obtenir de la demande entrante. (Générer de la demande et des leads) Détails de la formation : - Élaborer et planifier une stratégie de contenu spécifique à l'industrie - Installer un système de création de contenu à long terme - Créer un contenu unique qui renforce votre positionnement - Créer du contenu sur Linkedin, Substack, Blog, Youtube - Transformez votre contenu en un canal de revenus à fort retour sur investissement - Améliorez votre écosystème de contenu grâce à l'expérimentation

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