Founding Engineer

Archteam; Castilla-La Mancha; Remote; EUR 60,000 - 120,000; Full time

Benefits offered by this job

Equity stake

Founding title

Remote within Europe

Relocation assistance to Madrid

Job summary

Archteam is seeking a founding engineer to join the CTO and CEO, owning large parts of the backend, our agent infrastructure, and the data layer. You will ship to customers from day one and help define the architecture and product direction.

You will work on Postgres-backed services, autonomous agent systems, and data pipelines that feed signals and customer features. Madrid-based team, with remote work within Europe and relocation to Madrid as a long-term goal.

Qualifications

• Founding engineer with zero-to-one experience at near-zero revenue.
• Strong fundamentals in networking, data, algorithms, and product.
• Ability to design scalable systems and explain trade-offs.

Responsibilities

• Build Postgres-backed services and APIs.
• Develop autonomous agent systems and data pipelines.
• Deliver customer-facing features end-to-end.
• Shape engineering culture and hiring bar from day one.

Skills

Networking basics

Data structures

Databases

Algorithms

System design

Product thinking

Tools

PostgreSQL

Job description

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 LinkedIn, 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