Sebastien Dujoncquoy

Hi, I’m Sébastien.

With 18+ years of experience, I’ve built my career around one core belief: people and meaningful connections are what drive real impact.

After more than a decade in the HR ecosystem : Aquent, Welcome to the Jungle, and now Proppl

As Head of Sales at Proppl, I’m responsible for evangelizing and growing our client base among startups and scale-ups looking to hire business profiles, leveraging the power of their networks. That’s the core principle of Proppl: making recruitment smarter through connections.

I’m also the Founder of HOS, a WhatsApp-based network for Heads of Sales to exchange, support each other, and grow together.

I also coach startup founders and sales profils on full-cycle business skills, covering MEDDIC, Sales playbooks, cold calling, and more through structured programs designed to accelerate their growth.

🚀 How I can help you

I help teams turn ideas into actionable strategies and measurable results.

Depending on your needs, I can support you with:

=>Business strategy & go-to-market plans

=>Sales development & multichannel outbound culture (email, LinkedIn, calls)

=>Strong focus on cold calling, building the right mindset, scripts, and rhythm to make it effective

=>Coaching & sales enablement for business and talent teams

=>Process & tools optimization to structure your pipeline and increase conversion

=>Pitch, messaging & real-life simulations to sharpen your impact

Always with a hands-on, pragmatic, and human approach.

🤝 Freelance consulting projects I’ve supported

I’ve had the pleasure to collaborate with:

=>A communication & influence agency on their business development strategy

=>A Medtech company on their business development strategy

=>An audiovisual production company on client acquisition

=>An architecture photographer on positioning and pricing

And lecturer at Neoma, IGS, and the Institut Français de la Mode on Business & Employer Branding