Ruby on Rails Sr. Engineer

Q-tech is colaborating with a fast-growing international SaaS company that is opening a new engineering hub in Barcelona and is looking for a Senior Software Engineer.

This is a backend-focused role with high ownership and real impact, working on Identity & Access Management, APIs and integrations for a platform used by some of the most demanding customers in the private capital space.

What you'll work on
End-to-end ownership of backend initiatives
High-performance APIs, integrations and access control systems
Security, permissions and data privacy at scale
Close collaboration with Product & Design in small, autonomous teams

Tech stack
Ruby on Rails · PostgreSQL · Redis · AWS · Kubernetes
(Some TypeScript & React exposure, but backend is the core focus)

The team
~65 engineers globally, distributed across North America
Strong product-driven engineering culture
High ownership, low bureaucracy, real-world impact
Opportunity to help shape a brand-new Barcelona engineering hub

Location & setup
Permanent contract
Hybrid model: 3 days per week remote
Flexible working hours
Equity package included (4-year vesting, 1-year cliff)
23 days of paid annual leave
Private health insurance with Adeslas (family included)
€50/month phone & home internet allowance
€50/month public transport allowance
€60/month gym & wellness allowance
€500/year professional development budget
Collaboration with distributed teams across Europe and North America

If you're a senior backend engineer who enjoys building secure, scalable systems and wants to be involved early in a new team, this could be a great next step.