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Senior Software Engineer - Authentication Team

Factorial

catalunya, catalunya, Spain Full-time February 24, 2026

Found Description

Overview

Senior Software Engineer - Authorisation Team. Factorial is looking for a Senior Software Engineer to join the CIAM (Customer Identity and Access Management) team. You will work on both sides of the stack with a focus on the backend. You will own your area end to end and contribute to a product-first company delivering the future of B2B software.

Responsibilities
  • Own and deliver on your area with a self-starter attitude; balance strategic product thinking with execution.
  • Work on Authentication, Single Sign-On, Multi-Factor Authentication, Authorization, Permissions, and Auditing as part of the CIAM team.
  • Collaborate with a global, English-speaking team of product engineers; participate in RFCs and team decisions.
  • Engage in customer calls to understand pains and needs; review code daily and provide feedback on pull requests from team members, including juniors.
  • Mentor junior engineers and share knowledge across th...

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