Experteer Overview
As a Fullstack engineer on the Portals team, you will build customer-facing portals that enable secure, scalable self-service experiences. You’ll integrate internal systems (billing, CRM, product services) with external users, driving smooth customer journeys and reducing friction. You’ll own features end-to-end—from architecture to production—while collaborating with Product, Design, Finance, Sales, and Support. This role offers impact on growth, usability, and reliability at a fast‑growing SaaS company.

Compensaciones / Ventajas
• Design and develop customer-facing portals for subscriptions, billing, and account management
• Build robust backend services and APIs powering portal workflows
• Integrate internal systems and external providers (CRM, billing, authentication, product APIs)
• Collaborate with Product, Design, Finance, Sales, and Support to translate business needs into scalable user experiences
• Own features end-to-end including architecture, production monitoring, and performance optimization
• Follow GitOps mindset with CI/CD practices and rapid iteration




• Contribute to architectural decisions and RFCs to improve the platform over time

Responsabilidades
• 5+ years of experience as a Software Engineer (backend or full-stack)
• Experience building customer-facing platforms or SaaS with usability and reliability focus
• Experience designing and maintaining production-grade APIs and backend services
• Experience with frontend frameworks (React or similar)
• Experience integrating multiple systems and services (internal platforms, third-party APIs, auth systems)
• Strong ownership mindset and end-to-end delivery
• Clear communication and collaboration with Product, Design, and non-technical stakeholders
• English proficiency and ability to work with distributed teams

Requisitos principales
• high growth environment
• private health insurance
• Wellhub gym and activities
• Cobee expense management
• language classes
• office breakfast and organic fruit

📌 Senior Software Engineer - Data (Barcelona)
🏢 Factorial Hr
📍 Barcelona