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Careers at Carto · Barcelona

Build the one channel AI can't flood.

Carto is the first platform where offline marketing is tracked like digital, response by response. Nothing like it existed before. GPS-verified flyer distribution across Spain's ten largest cities, every delivery proven, every response measured. We are a small, revenue-focused team in Barcelona, hiring the first people who will scale it.

Hiring for Q4 2026.

Live since April 2026. Seven campaigns delivered and fifteen in the pipeline, including some of the most notable brands in the world across energy, telecom, events, retail and fitness.

7

campaigns delivered

15

in the pipeline

10

cities mapped

3.3 to 4.8%

measured response

Open roles

Four seats that decide the next two years.

Founding CTO

Barcelona

€50k–€60k + equity

Operations Lead

Barcelona

€28k–€32k + bonus + equity

Marketing Executive

Barcelona

€22k–€26k + equity

Account Executive

Barcelona

€30k–€38k + commission + equity

Founding CTO

Posted 9 Sept 2026
Barcelona Full-time, in person €50k to €60k plus 1.5% to 3% equity

The mission

Turn a founder-built platform into the infrastructure that runs offline marketing across countries.

What success looks like in your first 3 to 6 months

  • The architecture and stack are ready for multi-country scale: a design you have documented, load-tested and defended, with reliability, security and cost under control.
  • Native iOS and Android apps for Brand Missionaries are in crews' hands, with background GPS that survives a six-hour shift, offline resilience and photo proof.
  • Campaign API v1 is live, so a client or an AI agent can plan and book a campaign without a human in the loop.
  • The response dataset has a schema and a pipeline that turn every campaign into reusable intelligence.
  • You have hired the first engineer and set the engineering culture: AI-assisted, shipped weekly, measured.

What you will own

  • Architecture for scale: Next.js and TypeScript on Vercel, Supabase Postgres with row-level security, Mapbox, Resend and Anthropic. Ten cities today, several countries next.
  • The Brand Missionary mobile experience: a web app today, native iOS and Android next.
  • The campaign API and the data products built on our measured response dataset, the asset no competitor can copy backwards.
  • AI across the engineering process, the way we already build: faster than the team size suggests, with the judgement to know what machines cannot do.
  • Reliability, security and cost discipline in production. Our clients' campaigns run on this.
  • The first engineering hires.

Required

  • You have designed and run production systems that grew, and you can explain the trade-offs you made.
  • Full-stack depth in TypeScript, Postgres and cloud, and you have shipped a mobile app to real users.
  • You use AI tools every day and can show what they changed in how you ship.
  • Bilingual in Spanish and English.
  • You want a founding seat with equity, not a job title.

Nice to have

  • Geospatial or mapping work (PostGIS, Mapbox).
  • Experience with GPS tracking, offline-first apps or field operations tooling.
  • You have been the first technical hire somewhere before.

Compensation

  • Base salary €50k to €60k.
  • 1.5% to 3% equity, four-year vesting, one-year cliff.
  • Founding-team role reporting to the founder.

How to apply

One form, two minutes.

Pick a role, attach your CV and, if you like, three lines on why you. We reply to everyone. The process is a 30-minute call, a short practical task drawn from real Carto work, and a conversation with the founder. If you do not tick every box but you recognise yourself in the bar we set, apply anyway. We hire for judgement, ownership and speed, and we are an equal opportunity employer.

Five months in

Offline has never captured detail like this before.

For the first time, offline reports back like digital: routes, photo proof, and responses by zone and hour. An energy company signed after seeing what a blind flyer drop had cost them. A festival sold nearly a fifth of its tickets during four days of distribution. A museum is still receiving responses weeks after the last flyer. Every number above is measured by the platform and published in our case studies.

How we work

Founder-built, AI everywhere

Our sales development is run by an AI agent, our engineering is AI-assisted, our reports are AI-written and human-checked. A small team ships like a big one, and every hire multiplies that.

Revenue first

We bootstrapped to paying clients and we run on their revenue. Everyone here can tell you what a campaign costs and what it returns.

Real streets

Every hire walks one distribution shift with a Brand Missionary in their first month. You will understand the product in a way no deck can teach.

The bar is high on purpose

Each role below states what success looks like in the first three to six months. They are startup bars, not corporate ones: we are building the team that opens the next country, and we would rather say so up front.

What you get

We take care of the team.

We are rolling out benefits as the company grows. What we commit to today, in writing:

  • Published salary ranges and equity for every early hire, with four-year vesting and a one-year cliff.
  • 23 working days of holiday plus the extra days of the applicable convenio.
  • Laptop and phone, and the tools and AI subscriptions you need to do the job.
  • An office in Barcelona where the whole team works in person, and a right to disconnect outside working hours.
  • A company that looks after its people and their needs. When something matters to you, say it; we will work it out.

Looking to distribute flyers with us? Brand Missionaries are hired separately. Become a Brand Missionary