You'll be our founding engineer, working directly with our technical co-founder and CEO. You'll own large parts of the backend, our agent infrastructure and the data layer, and you'll ship to customers

What you'll work on

- Postgres-backed services and APIs that run thousands of agent workflows a day
- Autonomous agent systems: multi-step, multi-model pipelines that research, score, write and
- check their own output
- Data pipelines that pull in Linked In, job-board, company and enrichment data and turn it into
- signals
- Customer-facing features end to end, from the first call to production
- The engineering culture and hiring bar, from day one

Who you are

You've done zero-to-one before. You joined a company at or near zero revenue, as a founding engineer, first engineering hire or CTO, and stayed while it grew. You can tell us what you changed to make that growth happen.
You have strong fundamentals. *Frameworks come and go. We care that you understand:
*1. Networking: how HTTP, browsers and servers actually work
2. Data: data structures and databases. This knowledge compounds forever
3. Algorithms and architecture: you can design a system and explain its trade-offs
4. Product: you can take a messy customer conversation, split out what's essential right now, and defer the rest

What we offer

*** To be upfront: **the cash is below market, and the equity is the offer.

- Modest cash salary (we'll share the exact figure on the first call)
- A significant equity stake that grows with the next round, and grows substantially if you step into
- the CTO role
- A founding title, with real ownership over architecture and product decisions
- The chance to build an AI-native company from the ground floor, with paying customers already on
- board
- Madrid-based team. We're happy to start remote within Europe, with relocation to Madrid as the
- long-term goal

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📌 Founding Engineer (España)
🏢 Archteam
📍 España