This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Staff Engineer - Trust & Vault based in Spain.

Join a senior engineering role focused on protecting sensitive payment data and improving transaction performance at integral scale. You’ll lead the architecture of foundational systems spanning card vaulting, tokenization, authentication, and payment optimization. Your work will support secure, resilient payment experiences where reliability, compliance, and performance are non-negotiable. You’ll design bank-grade distributed systems while helping a highly technical team adopt strong engineering practices and full production ownership. The role is deeply hands-on, combining architecture, implementation, technical leadership, and mentorship. You’ll work across Product and senior engineering functions in an international, remote-first environment where your decisions can directly influence the reliability and efficiency of payment infrastructure.

Accountabilities




- Own the technical architecture and long-term direction of the Trust & Vault domain, covering card vaulting, tokenization, authentication, payment optimization, account updater capabilities, and portfolio migration.
- Design and evolve secure systems for tokenizing, storing, and retrieving sensitive card data within PCI-compliant boundaries.
- Architect and develop authentication capabilities such as 3DS/SCA and network tokenization to strengthen transaction security while minimizing customer friction.
- Build payment optimization capabilities designed to improve authorization and acceptance rates through network tokens, account updater services, and intelligent use of vaulted payment credentials.
- Design and maintain resilient, highly available, low-latency systems suitable for a zero-tolerance-for-failure production environment.
- Establish clear, versioned APIs and event-driven architectures that support scalable and maintainable

📌 Staff Engineer (España)
🏢 Jobgether
📍 España