---
title: 'AI Staff Engineer at FeverUp'
canonical: 'https://feeny.ai/job/ai-staff-engineer-feverup-spain-5r4vhereeemm'
type: 'job'
last_seen: '2026-09-10'
---

# AI Staff Engineer at FeverUp

- **Company:** FeverUp
- **Location:** Spain
- **Posted:** 2026-06-30
- **Last confirmed live:** 2026-09-10
- **Apply:** https://job-boards.eu.greenhouse.io/feverup/jobs/4912834101

## Job description

Hey there! We’re [Fever](https://feverup.com/), the world’s leading tech platform for culture and live entertainment.

Our mission? 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.

Our results? We’ve teamed up with major industry leaders like Netflix, F.C. Barcelona, and Primavera Sound, presented international award-winning experiences, and are backed by several leading global investors! Impressive, right?

To achieve our mission, we are looking for bar-raisers with a hands-on mindset who are eager to help shape the future of entertainment!

Ready to be part of the experience?

Now, let’s discuss this role and what you will do to help achieve Fever’s mission.

Behind the user-friendly iOS and Android apps and webpage that work across the world is the engineering team.  We are in charge of creating, developing, improving, and maintaining all Fever services so that more people can have an amazing experience.

## About the role

AI is changing how Product Engineering teams operate, and we’re building the team that defines what that looks like at Fever.

This is a software engineering role at its core. We’re looking for an outstanding Senior Software Engineer — someone who cares about code quality and not just getting things done, but getting them done right — who has built real AI and agent expertise on top of strong engineering fundamentals, and wants to ship it to production across the whole company.

You’ll join the AI & DevEx area, and our mission is bigger than tooling: it’s the performance of Fever’s entire Product Engineering organization. The squad is our unit of work and our target — and a squad is far more than code. It’s product management, product design, and engineering, plus the entire environment around them: the CI/CD pipelines, the monitoring and observability that feed context, the infrastructure a squad’s product runs on, the data people gather and analyze, the way they communicate and coordinate. Almost everywhere in that chain — from a first idea to a shipped, validated feature — there’s something AI can make better, and that’s our mission. We raise the leverage of all of it, until it compounds across the whole org.

Concretely, your scope spans two sides of the same coin: the agentic harness — the skills, sub-agents, evals, and verification that turn agents into shippable output — and the delivery substrate it runs on — dev environments, CI, the autonomous-delivery rails, and the telemetry that proves it works. You’ll build across this surface as a hands-on senior engineer, partnering with squads across the company.

## What you'll work on

- The agentic harness. Build and improve the skills, sub-agents, guardrails, tools, and verification that make agents produce high-quality output — not just for engineering, but for the entire squad and org.
- A knowledge base that compounds. Build the shared knowledge-base substrate these agents read from and write into — and grow it from team-level into something that compounds across the entire Fever organization.
- The delivery substrate and its autonomous rails. Cloud dev environments, CI runtime, ephemeral environments on demand, and migration tooling — the road every engineer drives on — plus the rails that turn a request into an environment, an agent run, and a pull request with reviewable evidence. You own how fast it is and how reliably it works.
- AI across a squad’s way of working. Look beyond coding agents to the whole operating reality of a squad — assistants for engineering leads, the tooling and workflows people work through, the way they plan, coordinate, and communicate — and find where AI removes the most friction.
- Evaluation and measurement. Build the measurement substrate that lets every change land on signal, not vibes. Naked baselines, “ship only on a measured improvement,” and metrics that matter: lead time idea→production, DORA, real adoption.
- Inference economics. Make AI-driven workflows fast and cost-bounded: model routing, prompt caching, and knowing when self-hosted open-source wins versus frontier models on the joint quality + cost frontier.
- Adoption that’s real. Work directly with the squads we serve so the tools actually get used — and actually make people better, measured, not assumed.
- Engineering excellence. Testing, design patterns, CI/CD, observability. Everything here ships as production software, so the people who build it set the bar for what good code looks like.

## About you

- 5+ years building and operating production software at meaningful scale — you’ve owned systems end to end, not just shipped isolated features.
- Strong software design fundamentals: good practices, testing, design patterns, clean architecture. You don’t just get things done; you get them done right.
- Backend depth: RESTful APIs (implementation and consumption), relational databases and SQL, and the distributed and async / event-driven patterns (queues, messaging) behind high-traffic services.
- End-to-end production ownership: CI/CD, observability and monitoring, infrastructure, and accountability for how your code behaves once it’s live. “Done” means healthy in production, not merged.
- Proficient in business English.
- At least the last 1–2 years deep in LLM applications shipped to production, not just prototyped — with a working command of the modern toolkit: context engineering, RAG, multi-agent systems and orchestration, and evals.
- You build with agents, you don’t just use them. You’ve authored skills, sub-agents, evals, and verification harnesses yourself — and you can show us something real you built with agents and walk us through how you did it.
- You think in measurements: baselines, before/after comparisons, and killing experiments that don’t move the needle.

Bonus Points

- Public artefacts on agent harnesses, AI evaluation, developer experience, or AI-era engineering tooling — open source, talks, blog posts, papers.
- Experience building internal tools or developer platforms, where other engineers are your users.
- Comfort operating with ambiguity at startup speed — small teams, no playbook, decisions you can’t outsource.

## Benefits & Perks

- Attractive compensation package consisting of base salary and the potential to earn a significant bonus for top performance.
- Stock options.
- Opportunity to have a real impact in a high-growth global category leader
- 40% discount on all Fever events and experiences
- Home office friendly
- Responsibility from day one and professional and personal growth
- Great work environment with a young, international team of talented people to work with!
- Health insurance and other benefits such as Flexible remuneration with a 100% tax exemption through Cobee.
- English Lessons
- We have free food, drink and fruit at the office!
- Possibility to receive in advance part of your salary by Payflow.

Thank you for considering joining Fever. We cannot wait to learn more about you!

If you want to learn more about us: [Fever's Blog](https://newsroom.feverup.com/en-US/) | [Tech.Eu](https://tech.eu/2023/02/02/fever-raises-110-million-in-new-round-at-1-8-billion-valuation) |[TechCrunch](https://techcrunch.com/2019/08/04/data-driven-events-discovery-and-planning-startup-fever-raises-35-million-led-by-rakuten/)

Fever is committed to creating an inclusive and diverse workspace where everyone's background and ideas count. Our main goal is to find the best possible talent regardless of place of birth, racial or ethnic origin, gender, gender identity, religion, opinion, sexual orientation, disability, pregnancy, marital status, age or caring responsibilities. We encourage everyone to apply!

If you require any kind of accommodation during the selection process please contact our Talent team so we can help you by providing a welcoming and seamless journey.

If you want to know more about how Fever processes your personal data, click here [Fever - Candidate Privacy Notice](https://docs.google.com/document/d/1cIzPP7QJGht5LAGKkRGQP8fxh-Z4Mfph2JhGSvhd8zM/edit?tab=t.0#heading=h.y7rpsj7nzave)

## About FeverUp

## Company Overview
- **One-liner**: Fever is the leading global live-entertainment discovery tech platform that helps millions of people weekly discover and book local experiences, from immersive exhibitions and festivals to pop-up events, while empowering creators with data and technology.
- **Entity Type**: Private (Private Equity-Backed; latest deal type: PE Growth/Buyout-LBO)
- **Headquarters**: New York, NY, USA (50 Greene Street, 3rd Floor)
- **Founded**: 2014
- **Founders**: Alex Marti (CEO) and Francisco (Paco) Herrero

## Core Business
- **Primary industry/industries**: Application Software, Live Entertainment, Event Ticketing, SaaS, Mobile
- **Target customers**: B2C (consumers looking for local experiences) and B2B (event organizers, creators, venue owners, brand partners)
- **Mission or purpose statement**: To democratize access to culture and entertainment in real life.

## Products & Services
- **Fever Platform (App/Web)**: A discovery and ticketing platform offering personalized recommendations for local events, immersive experiences, interactive theaters, festivals, molecular cocktail pop-ups, and more. Users can browse, discover, and book tickets.
- **Fever Originals**: Fever’s in-house production arm that creates and produces its own proprietary events and experiences (e.g., immersive exhibitions, pop-ups).
- **Fever for Business**: A B2B offering providing tools for event promotion, management, and audience reach, empowering creators with data and technology to scale their experiences.
- **Secret Media Network**: An advertising and sponsorship network connecting brands with Fever’s audience through integrated campaigns and event partnerships.
- **Onebox**: A product/service line (likely a unified platform or integration tool for partners).

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed (recent PE buyout/LBO deals suggest significant private market valuation).
- **Key Metric – Total Funding**: $561M raised across 13 financing rounds.
- **Notable Investors/Partners**: Ares Management, Crescenta, Endeavor Catalyst, Everything is Awesome, G Squared (among 31 total investors).
- **Growth Signals**:
    - **Employees**: ~3,000+ (careers page) to 3,954 (PitchBook, as of 2025) — rapid scaling from 2,200+ full-time employees.
    - **Global Presence**: Headquarters in NYC with local offices in 15+ cities (Madrid, London, Los Angeles, Chicago, Mexico City, Sydney, Singapore) and presence in 150+ cities globally.
    - **Recent M&A**: Acquired Dice (music ticketing, June 2025) and Atom Tickets (movie ticketing, March 2025) via buyout/LBO, signaling aggressive expansion into new entertainment verticals.
    - **Team Diversity**: 56+ nationalities represented.

## Competitive Advantages
- **Data-Driven Platform**: Fever leverages data to inform intuition, personalize recommendations, and help creators optimize events — a core differentiator over traditional ticketing.
- **Proprietary Content (Fever Originals)**: By creating its own events, Fever controls supply and margins, reducing reliance on third-party inventory.
- **Global Scale & Network Effects**: A vast, multi-city presence creates a powerful two-sided marketplace: more events attract more users, which in turn attracts more event creators.
- **Strong Brand & Talent Magnet**: Known for a high-performance culture (“Get things done,” “Good and fast is 10x better than perfect and slow”), attracting ambitious talent.

## Strategic Focus
- **Expansion via M&A**: Recent acquisitions of Dice and Atom Tickets indicate a strategy to consolidate the event ticketing space and enter new verticals (live music, cinema).
- **International Growth**: Continuing to expand into new cities and countries across Europe, Americas, Asia, and Oceania.
- **Deepening B2B Offerings**: Empowering event creators with more data, technology, and marketing tools through “Fever for Business” and “Secret Media Network.”
- **Vertical Integration**: Growing Fever Originals to produce more high-margin, proprietary events.

## Why Work Here
- **Culture & Values**: Emphasizes a fast-paced, data-driven, and entrepreneurial environment. Core values include “Get things done,” “Make decisions based on facts and data,” “We are bar-raisers,” and “We are Fast.” The company encourages direct, actionable feedback and a “bias for action” over excessive process.
- **Remote/Hybrid/Office Policy**: Not explicitly stated on careers page, but the presence of offices in 15+ cities and roles listed with specific locations suggests a hybrid or office-based model with flexibility depending on role and team.
- **Notable Perks & Environment**:
    - **Diverse & Inclusive**: Equal opportunity employer with 56+ nationalities; average employee age is 31.
    - **High Talent Bar**: “A few motivated and skilled team members achieve much more than many who are disengaged or ineffective.”
    - **Hands-On Culture**: All employees, including leadership, are expected to be hands-on and lead by example.
    - **Growth Opportunities**: With 500+ open roles across 20+ departments (Engineering, Product, Data, Marketing, Sales, Operations, etc.), there is significant room for internal mobility and career growth.
    - **Impact**: Employees directly shape how millions of people discover culture and entertainment globally.

## Sources
1. [Fever Careers - Overview](https://careers.feverup.com/)
2. [Fever Careers - Life at Fever](https://careers.feverup.com/life-at-fever/)
3. [Fever Careers - Work Areas/Jobs](https://careers.feverup.com/work-areas/)
4. [PitchBook - Fever 2026 Company Profile](https://pitchbook.com/profiles/company/62912-89)
5. [Fever Company Website](https://feverup.com)

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