? About us

FounderNest is an AI-native company helping corporations understand markets and generate strategic insights from complex data. We work with a dataset of 50M+ companies and 1.2B+ data points, combining real-time analytics, search, and Generative AI to deliver high-quality, explainable insights.

We build production-grade LLM systems, retrieval pipelines, internal agents, and evaluation frameworks designed to operate reliably at scale for the core infrastructure of our product.

Our product is used by hundreds of customers daily, including large enterprises like Bloomberg and Shiseido.

? Location

Fully remote within Spain only. Candidates must currently reside in Spain and have legal authorization to work in Spain.

? The role

You would join our GTM Engineering team, where your closest teammates would be engineers and people from product, marketing and sales. Our job is to automate the repetitive, mechanical work in sales, marketing and customer success, so those teams spend their time on the things only a human can do: closing deals, nurturing prospects, and building the relationships that turn into upsells. We do that through experimentation, scrappy by design: find the shortest path to something that works, put it in front of people who will use it, learn and keep going.

In practice

- Find where the most expensive friction is and build the thing that removes it, usually before the person drowning in it has to ask for help.
- Build it end-to-end, mostly on the backend: integrations with the tools our teams already use, data pipelines, LLM-powered workflows, and whatever interface makes it usable.
- Be measured on the outcome: leads, meetings booked, revenue generated.

A few things stand out about this role. Very few engineers get to draw a straight line from something they built to money the company made. The feedback loop is short: you ship on Tuesday, someone is using it on Wednesday, by Friday you know whether it worked. And you’ll work on AI systems in production from day one.

? What we are looking for





We are not hiring for a specific seniority, but you’ll need around 2 years of professional experience shipping software. Beyond that, how you think matters more than your title.
- You are either full-stack or strong on the backend. Most of this work (integrations with APIs and SDKs, data pipelines, LLMs) lives on the backend, so that is where we need you to be solid. Knowing your way around the frontend, or being up for learning it, is a plus.
- You take ownership of problems, not tickets. You want to know who the user is and what actually helps them before you start building, and here you can just ask, because they’re one Slack message away.
- You are lean and pragmatic. You would rather ship something small and useful this week than something perfect next quarter. You choose solutions proportional to the problem, and you can explain the tradeoffs you made.
- You can work with people who are not engineers, explaining your reasoning without jargon, and taking a half-formed request from someone in sales and turning it into a real problem statement.
- You pick things up fast and you like doing it. Most of what this role needs you can learn here.

? Nice to have. Two things would make you stand out:

- AI engineering. You have taken an AI-powered feature to production and know what breaks once real users touch it.
- AI-assisted coding. You get real leverage out of coding agents, to the point where you are directing and reviewing the work rather than typing it.

?️ Our stack

TypeScript, Python, PostgreSQL, MongoDB, BigQuery, AWS, LangChain, LangSmith, New Relic

? Compensation & Perks

- Permanent full-time contract.
- Competitive salary, reviewed as you grow with us.
- Stock options, so you share in the upside as the company grows.
- Latest equipment you need to work comfortably from home.
- Adaptable schedule, have the freedom to organize your day.
- Unlimited vacation policy, take the time you need to recharge.
- 90/10 policy: Devote 10% of you time (usually a Friday every other week) to innovate and learn.
- Birthday policy: we celebrate your day with a special gift.

📌 Product Engineer (España)
🏢 Foundernest
📍 España