Senior Software Engineer - Authentication Team
Location
barcelona, kingdom of spain
Job Type
Full-time
Category
IT
Posted
June 13, 2026
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 andteam 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 knowl...