Cryptography Engineer, Zero- Credentials

Empoorio was founded on the belief that people should own their digital identity - cryptographically secured, portable across services, and anchored on Empoorio Chain without platform lock-in. Today we are building KryptoOS, the sovereign identity layer for wallets, cloud, and enterprise integrators worldwide.

KryptoOS delivers production SSI - did:emp identifiers, verifiable credentials, issuer and verifier services, and multi-language SDKs. You will work on protocols used daily across the Empoorio ecosystem.

You will prototype and product ionize zero-knowledge credential presentations for privacy-preserving verification.

If you thrive in high-ownership environments where correctness and privacy matter, this role will be a strong next step in your career.

• Design and implement cryptographic primitives for DID documents, credential proofs, and key rotation
• Own did:emp resolution performance, fail-closed verification, and protocol RFCs shared with integrators
• Collaborate with runtime engineers on Empoorio Chain anchor semantics and revocation (Status List 2021)
• Review security-sensitive changes across kryptos-core, issuer services, and verifier pipelines
• Mentor engineers on W3C DID Core 1.0 and VC Data Model 2.0 implementation details
• Bachelor's degree in computer science, engineering, mathematics, or equivalent practical experience
• 2+ years of professional experience in software engineering, security, or distributed systems (1+ for specialist IC tracks)
• Ability to work autonomously in a remote-first, async collaboration environment
• Fluency in English for documentation, reviews, and partner communication

• Experience with W3C Verifiable Credentials, DIDs, or OIDC4
  
  VCI / OIDC4VP
• Contributions to Rust, Type Script, Python, or Dart codebases used in production
• Exposure to Substrate, Polkadot ecosystem, or blockchain anchoring patterns
• Background in privacy engineering, applied cryptography, or formal security reviews
• Prior work with wallet, fintech, or enterprise identity integrations

• Willing to overlap with EU and Americas time zones for critical releases and incidents
• Able to travel up to 10% for team summits, partner workshops, or conferences
• On-site collaboration expected for local team sessions in addition to remote work

Empoorio is an equal opportunity employer. Employment decisions are based on merit, competence, and qualifications without regard to protected characteristics. Reasonable accommodations are available upon request.