Q-tech is collaborating 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
Versátil working hours
Equity package included (4-year vesting, 1-year cliff)
23 days of paid annual leavePrivate 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.

📌 Ruby on Rails Sr. Engineer (Madrid)
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