Founding Sales - France - Massive Dynamic

Massive Dynamic
Massive Dynamic

Sales & Business Development

Paris, France

EUR 150k-180k / year + Equity

Posted on Jul 27, 2026
Paris, France - On-site 4 days per week

About

Massive Dynamic is building the operating system for digital advertising. Our AI copilot automates the grunt work—campaign setup, optimization, reporting—freeing professional media buyers at agencies and large in-house teams to focus on strategy and creative.
Founded by Trystan (CEO) and Guillaume (CTO), who've spent years in paid media and shipping products used by millions daily. We recently raised €3M pre-seed led by Seedcamp and are working with top European agencies like Artefact, Eskimoz, and Growth Room.
Our culture is high-intensity and high-trust:
Small team, zero hierarchy — You work directly with founders. No middle management, no politics.
Talent density over headcount — We hire slowly and pay significantly above market. We'd rather have 5 exceptional people than 15 solid ones.
In-person, high-tempo — Office 4+ days/week. Fast decisions, short feedback loops, late Slacks when something's urgent.
Shipping beats process — We follow Lean principles: create customer value, eliminate waste, develop people.
Ownership gets rewarded — Meaningful equity and performance-based upside for people who move the business forward.

The role

As Founding Sales France, you will build Massive Dynamic’s sales motion in France from the ground up. You are the first dedicated sales hire in the country. Your mission is not just to sell, but to turn product traction into ARR, close the first strategic customers, and create the foundations of a scalable Go-to-Market.
You will work directly with the founders, with full ownership of the French market. There is no playbook, no comfort zone, and no hand-holding: you are expected to test, learn fast, iterate, and execute with intensity.
Year 1 target: €1.2M in ARR
Typical deal: €80K–300K ARR, 3–8 week sales cycle
Customer volume: 8–12 new customers in the first 12 months
You will:
Build the French pipeline from scratch — identify and prioritize high-potential agencies and advertisers, run outbound motions, activate your network, and convert inbound traction into revenue.
Own the full sales cycle end-to-end — discovery, demo, qualification, negotiation and closing, across complex, multi-stakeholder buying processes.
Sell at a high bar — position Massive Dynamic as a strategic, AI-native partner for marketing teams, with a sharp, ROI-driven and credible narrative.
Create the sales foundations — define messaging from the field, structure the sales process, document what works, and feed learnings back into product, pricing and packaging.
Deliver results under pressure — own ambitious revenue targets and be accountable for outcomes, not activity.
This role is a critical building block toward Massive Dynamic’s Series A, with the French market being a key execution pillar over the next 12 months.

Your profile

You have 4–8 years of experience selling B2B solutions in media / martech / adtech / data / AI to agencies and high-growth advertisers in France, and you bring an activable agency network you can leverage from day one.
You are a hunter and a builder. You don’t just close deals, you build from scratch: pipeline, messaging, habits and momentum. You thrive in no comfort zone environments, where nothing is handed to you and everything has to be created.
You operate with high ambition, high standards and high intensity, and you take full ownership of outcomes. You enjoy competitive new-logo sales and demanding targets.
You’re comfortable navigating multi-stakeholder sales cycles, from hands-on practitioners to C-level decision-makers, and you know how to create internal champions.
You’ve already been an early sales hire or first salesperson, or you’ve opened a territory without an established brand, inbound volume or playbook, and delivered results.
You are hands-on, resilient and execution-driven, energized by early-stage environments and fast learning curves. You speak fluent French and English.

Benefits

Competitive compensation - €150-180K OTE - with a clear split between base and variable, and uncapped upside strongly tied to new ARR.
Meaningful equity reflecting the ownership, impact and founding nature of the role.
Founder-level exposure: direct, daily collaboration with the CEO and CTO, and strong influence on go-to-market, product and pricing decisions.
Fast career acceleration: a rare opportunity to build, own and scale a sales function early, with disproportionate learning and upside compared to a traditional sales role.

Our recruitment process

Phone Screen with Philippine (Recruiter) – 45 min.
First Call with Trystan (Co-founder & CEO) – 1 hour.
Business Case with Trystan (Co-founder & CEO) – 1 hour.
Second Interview with Guillaume (Co-founder & CTO) – 1 hour.
Culture fit with additional team members.
Reference checks.

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