Do you want to help us redefine how AI powers the future of Business Management software, not as an add-on, but as a core part of how people work, decide and grow?

Para ser considerado para una entrevista, por favor, asegúrese de que su solicitud se ajusta plenamente a las especificaciones del puesto que se encuentran a continuación.

We're looking for a Senior/Staff Site Reliability Engineer to join our Infrastructure Team in the Platform Domain.

Our core stack is Ruby on Rails and React but the interesting work right now is what we're building on top of that: agentic workflows, LLM-integrated features, systems that behave probabilistically rather than deterministically.

Our Infrastructure team's mission is to keep the Factorial application running 24/7, ensure its performance, scalability and security, as well as research improvements to enable Product Engineers to develop new use cases adding value to our customers.ð8+ years of Software/Systems Engineering experience, with 5+ years as Cloud SRESolid experience monitoring and troubleshooting large-scale cloud deploymentsHands-on with Terraform or Ansible for IaCObservability experience with Datadog, Grafana, or OpenTelemetryProficiency with AWS or AzureSomeone able to debug issues in Kubernetes clustersExperience managing large MySQL clusters with HA configurationSomeone who breaks down complex problems into clear, shareable elementsSomeone who enjoys mentoring and helping others growSomeone who can communicate professionally in English Please note this is not a backend or frontend Software Engineering role.

As a Staff Engineer you'll lead technical discussions and provide guidance to more junior engineers on best practices and coding standards.

Identify and troubleshoot software defects and implement effective solutions.

You will learn from the entire team, both on technical topics (performance, architecture...)



and core skills, in an environment driven by engineering quality.

How We Work ð» (Barcelona Office)At Factorial, we believe the best products are built when people come together, in person to collaborate, challenge ideas, and move fast. That's why our Engineering Teams follows an office-first, versátil approach.

However, we also understand the importance of focus and flexibility, so we support remote work when it makes sense - whether for deep work, personal needs, or just a change of scenery.

This balance helps us stay agile, creative, and closely connected, while giving everyone the space to do their best work.

The hiring processIntro Call Chat with our Talent Partner about your journey, current goals. One last coffee-chat with our VP of Engineering, where you can get all the answers about Factorial's culture, business vision, or anything else that interests you. The whole process is remote, using videoconferencing tools!

About Factorial ðAt Factorial, we're building the leading AI Business Management Software for companies of all sizes. Our platform centralizes key workflows across HR, Finance, Talent, Operations, and IT, freeing teams from manual processes so they can focus on what really matters: leading, growing, and taking care of their people.

We are one of Europe's fastest-growing SaaS companies, proudly headquartered in Barcelona. If you're excited to shape the future of business management technology, we'd love to meet you.

Our ValuesWe own it: We take responsibility for every project. xugodme Perks of being part of Factorial ðHigh growth, multicultural and friendly environmentAlan as private health insuranceHealthy life with Wellhub (Gyms, pools, outdoor classes)Save expenses with CobeeLanguage classesBreakfast in the office and organic fruitFood discounts with NoraPet FriendlyMuch more that we'll spill during the interview process!

📌 Senior/Staff Site Reliability Engineer (Barcelona)
🏢 Factorial Hr
📍 Barcelona