We're Fever , the world's leading tech platform for culture and live entertainment.
To democratize access to culture and entertainment. With our proprietary cutting-edge technology and data-driven approach, we're revolutionizing the way people engage with live entertainment.
Every month, our platform inspires over 300 million people in +55 countries (and counting) to discover unforgettable experiences while also empowering event creators with our data and technology, helping them scale, innovate, and enhance their events to reach new audiences.
We've teamed up with major industry leaders like Netflix, F.Barcelona, and Primavera Sound, presented international award-winning experiences, and are backed by several leading integral investors! This is a backend engineering role first: you need strong software fundamentals to build systems that scale and hold up in production. You won't just use agents, you'll build the harnesses, evals, and infrastructure that make them ship reliable, high-quality output across the entire company.
Our mission is to raise the performance of Fever's whole Product Engineering organization, not just individual engineers, but entire squads (product, design, and engineering together) and everything that surrounds their work: CI/CD, observability, infrastructure, data, and how people communicate and coordinate. Build the skills, sub-agents, guardrails, and verification systems that make agents produce high-quality, trustworthy output, for engineering and beyond.




Build the shared knowledge substrate agents read from and write into, growing it from team-level to something that compounds across all of Fever.
Own the cloud dev environments, CI runtime, and autonomous-delivery rails that turn a request into an environment, an agent run, and a reviewable pull request. Go beyond coding agents. Find where AI removes friction in planning, coordination, and communication across a squad's daily work.
frontier models based on the quality/cost trade-off.
Testing, design patterns, CI/CD, and observability. Everything ships as production software, and you help set the bar for what good looks like.
5+ years building and operating production software at meaningful scale, with end-to-end ownership (not just shipping isolated features).
~ Strong software design fundamentals: testing, design patterns, clean architecture.
~ Backend depth: RESTful APIs, relational databases and SQL, distributed and event-driven patterns (queues, messaging) behind high-traffic services.
~ Proficient business English.

Public work on agent harnesses, AI evaluation, or developer experience: open source, talks, blog posts, papers.
Attractive compensation package consisting of base salary and the potential to earn a significant bonus for top performance.
~ Opportunity to have a real impact in a high-growth global category leader
~Home office friendly
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📌 Senior Software Engineer - AI Agents & Developer Platform (España)
🏢 FeverUp
📍 España