Software Engineer

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers. She will pick the best candidates from Jack's network. The next step is to speak to Jack. Job Title Software Engineer Salary €70k-€90k Company Description The Eurobrain Company is an early-stage startup in Amsterdam building the critical measurement and data infrastructure for frontier AI labs. As a team of fewer than ten people, they create domain-specific benchmarks and automated production pipelines that measure and improve model intelligence in complex fields like law, finance, and engineering. Job Description As one of the first engineers at The Eurobrain Company, you will build end-to-end systems from schema to UI. You’ll own the infrastructure for evaluating frontier models against professional tasks and automate the pipeline that generates expert-reviewed training data, ensuring your work hits production labs within weeks of development. Location Amsterdam, Netherlands Why this role is remarkable Work at the frontier of AI development by building the benchmarks that define model performance for the world's leading labs.Join an elite, high-impact team as one of the first ten hires, directly influencing the product direction and engineering culture.Experience rapid shipping cycles where your work moves from development to being an integral part of frontier model training pipelines within weeks. What You Will Do Build and maintain robust evaluation harnesses that run frontier models against complex, domain-specific professional tasks and expert rubrics.Architect "the factory"—an automated pipeline that manages the sourcing, preparation, and expert review of high-quality training data.Design and implement full-stack features solo, managing everything from database schemas and backend logic to production-ready user interfaces. The ideal candidate A generalist product engineer with a track record of shipping end-to-end features independently and a high-agency, problem-solving mindset.Strong technical fundamentals with the ability to quickly master LLM evaluation complexities and a rigorous approach to data quality.Previous experience as a founder or early employee is highly valued, specifically for those who thrive in fast-paced, high-ownership environments. Who are Jack & Jill? Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support. And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate. How does this work? Jack's an AI agent for job searching and career coaching. He works for you.Jill is the AI recruiter working for the company. She recruits from Jack's network.If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives. We never post fake jobs This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network. Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description. We appreciate this can make them look a bit suspect, but there isn't much we can do about it. Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.