su.engineering is an independent product & engineering studio in Bilbao, Basque Country. We help companies, system integrators, enterprise teams and research consortia design and ship technically difficult software.
Identity · Privacy · AI · Security · Distributed systems
- Identity & EUDI: wallets, issuers, verifiers, credentials and interoperability.
- Product Engineering: from ambitious technical idea to working product.
- Specialist Partner: senior engineering capability inside your existing project.
We stay small and senior, and build the team around the problem: from one specialist to a full delivery team. Our team brings experience from 30+ enterprise projects, including work before founding su.engineering.
We build what we advise on.
| Product | Status | What it is |
|---|---|---|
| Velum | Live | Privacy infrastructure for everyday AI workflows. Keeps sensitive information from being exposed to AI tools and other external services. |
| OpenKYC | Approaching launch | Reusable identity verification without repeating KYC. Credential-based identity and age verification built on reusable proofs. |
| REM | In development | Shared engineering memory for teams working with AI agents, across developers, repositories and coding tools. |
| Klangfarbe | In development | Verifiable identity for AI voice agents. An open protocol that lets the receiver of a call check which organization's agent is speaking and for what purpose. |
- keycloak-oid4vp: OpenID4VP wallet login for Keycloak. Verifies SD-JWT VC and mDoc presentations, with issuer trust from X.509 and ETSI trust lists, did:web or did:webvh.
- eudi-disclosure-policy: checks that an OpenID4VP request asks only for the data its purpose needs, before a verifier sends it to an EUDI Wallet. TypeScript library and CLI.
- awesome-eudi: a curated index of the European Digital Identity Wallet ecosystem: regulation, the ARF, the specifications and the implementations.
- heic-web: HEIC decoding and conversion for web applications, in browsers where native support is limited or inconsistent. On npm as
@su-engineering/heic. - react-native-nearby-interaction: Apple's Nearby Interaction framework for React Native and Expo apps.
Digital Identity 101 is a free, plain-English course on digital identity wallets, eIDAS 2 and the EUDI Wallet: 16 short lessons, ending in a verifiable certificate. All courses: academy.su.engineering.
Engineering notes from actual work: digital identity and EUDI, privacy engineering, AI systems, security, distributed systems and product engineering.
Bring us the hard part. Discuss a project or write to hello@su.engineering.
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"su" means water in Turkish and fire in Basque.