Founding GTM

About Mafer

At Mafer we are building an AI data platform for R&D teams in formulation industries: flavors & fragrances, food & beverage, cosmetics, personal care, home care and specialty chemicals. We structure the molecular and formulation data that today lives across instruments, spreadsheets and lab notebooks, and turn it into systems that accelerate analysis, formulation and regulatory work.

We are a small, highly technical team of engineers and scientists, working from our office in Barcelona and backed by tier-1 investors. Everyone here works close to customers: you are either building or selling.

The role

You will own how Mafer reaches R&D teams across formulation industries: finding the right companies, understanding their technical workflows, and showing them — with real demos on their own kind of data — how their history can start working for them.

This is a founding role, not a seat in an existing machine. You will be closing deals yourself first, then building the playbook, the materials and eventually the team behind them.

What you'll do

• Own prospecting and first conversations with R&D, quality, regulatory and digitalization leaders.
• Run the full cycle: qualification, technical discovery, pilot scoping, proposal, negotiation and close.
• Build demos and materials adapted to each vertical and use case, together with the technical team.
• Turn what you learn in the field into product priorities — you are the shortest path between the market and the roadmap.
• Write the GTM playbook as you go, so the next hires start from something that already works.

What we look for

• A proven record selling B2B software or technical services, typically 3+ years: you have carried a number and hit it, and you can walk us through deals you closed yourself.
• Comfortable with technical depth. You don't need to be the most technical person in the room, but you must understand complex processes and explain them with precision.
• Hands-on and customer-facing: happy to run a room, ask uncomfortable questions and walk into a lab or a factory.
• High agency and ambition. At Mafer, you're either building or selling.
• Fluent in Spanish and English.

Nice to have

• Experience selling into food & beverage, beauty, fragrance, specialty chemicals or industrial manufacturing.
• Early-stage experience, where the playbook did not exist yet.

What we offer: a founding equity package, a compensation structure with real upside on what you close, and the freedom to build the commercial function the way it should be built.

Hiring process

1. Apply below — we read every application and reply if there's a potential fit.
2. A 30-minute conversation with Fer (CEO) to get to know each other and align expectations.
3. A technical interview with Marc (CTO), around one hour.
4. Two days working on-site with us at the office in Barcelona, on a real Mafer problem: you see how we work and we see how you work.
5. We move fast: we aim to decide within three days of the last conversation.