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.