Ready to help define the trust infrastructure behind the next generation of digital identity? Ditto is a fast-growing B2B SaaS company redefining how regulated industries establish digital trust. Our privacy-first identity platform, built on Zero-Knowledge Proof technology, powers secure and compliant customer interactions across banking, fintech, crypto, travel, and gaming.

You will lead the architecture behind: trust registries and DID infrastructure credential issuance and verification services OID4VCI / OID4VP flows holder-binding and attestation services cross-border credential trust and assurance status list and credential lifecycle infrastructure AI-agent and workload credential trust You'll work across Ditto Verify, Authenticate, and Protect, combining identity verification, authentication assurance, device telemetry, and post-quantum cryptography into a unified decentralised trust platform. We're looking for someone with: 10+ years in digital identity, cryptography,



or trust infrastructure architecture hands-on production experience with Verifiable Credentials and OID4VC* standards experience designing trust registries, PKI hierarchies, DID systems, or trust lists at scale strong knowledge of identity and trust standards including W3C VC, SD-JWT VC, ISO mDL, OpenID Federation, and eIDAS 2.0 practical experience integrating AI/LLM systems into production environments excellent written and verbal communication skills in English Experience with post-quantum cryptography, EUDI Wallet ecosystems, DID programmes, OpenID standards, NIST , banking-grade trust infrastructure, or standards-body participation is highly valued. Spanish is a plus.

Recruitment Process

Introductory conversation with Talent CTO & CPO conversations Collaborative 90-minute architecture working session Final meeting with Ditto leadership

📌 Architect (Spanish Speaker) (Barcelona)
🏢 Ditto
📍 Barcelona