Job Opportunities API

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. Trusted by organisations including Temenos , LTIMindtree , and Infosys Finacle , we are scaling globally from our Barcelona headquarters and building the next generation of decentralised identity and trust infrastructure. We are looking for a Principal Architect to lead the design of Ditto’s Trust Registry & Decentralised Identity platform — the infrastructure that allows Ditto to trust third-party credentials and enables Ditto-issued credentials to be trusted globally in return. This is a rare opportunity to architect foundational trust infrastructure at the intersection of identity, cryptography, verifiable credentials, AI-agent identity, and cross-border assurance. 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 800-63, 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 If you want to help shape the future of decentralised identity, verifiable credentials, and global trust infrastructure, we’d love to hear from you.