NMK Global Inc. is a global IT Services & Solutions company specializing in IT Staffing, Technology Consulting, Workforce Solutions, and Application Development Services. We help organizations build high-performing technology teams by connecting them with exceptional talent across a wide range of industries. Our expertise, industry knowledge, and consultative approach enable clients to achieve successful business outcomes while helping professionals advance their careers.
Job Title: Forward Deployed Engineer, Identity, UCP & Wallets (TypeScript)
Location: Remote
Job Description:
Carry a verified loyalty identity through the agent handshake on UCP and on a protocol-agnostic rail, and build the wallet-held Verifiable Credential proof of concept.
What you will do in the first 90 days
• Implement the UCP side: trust signal with a loyalty block on a platform agent, and a mock UCP merchant that verifies it, resolves eligibility server-to-server, applies member pricing and reserved-inventory holds in the Checkout object, records pending earn on the Order, and steps up to OAuth (PKCE) identity linking only for redeem/transfer.
• Build the protocol-agnostic rail: X-Agent-Trust header contract, a Cloudflare Worker edge verifier with JWKS caching and spoof-header stripping, and Node/TypeScript merchant middleware exposing a loyalty context to handlers.
• Build the VC POC: issue an Agent Trust credential over OID4VCI to a holder wallet (Credo or equivalent), present via OID4VP with selective disclosure (SD-JWT first, BBS+ predicate as stretch), verify at the merchant, and prove that no PII reaches the agent.
• Implement and run the loyalty-fraud test suite (replay across merchants, token reuse, enumeration, ATO-pattern redeem, scalper hold-and-abandon) on both rails.
• Write the merchant integration guide for the rail and the UCP path; build the demo storefront beats.
Must have:
• 5+ years TypeScript/Node (Node 22, Next.js or similar); strong HTTP fundamentals; comfortable writing both a spec-conformant server and a reference client.
• Identity engineering: OAuth 2.0 Authorization Code + PKCE, OIDC, JWT/JWS (ES256, EdDSA), JWKS rotation, replay controls (aud, jti, TTL); has implemented token verification in production.
• Verifiable Credentials hands-on: W3C VC 2.0 data model, OID4VCI/OID4VP, SD-JWT VC; familiarity with DID methods (did:web, did:key) and at least one wallet SDK.
• Edge development: Cloudflare Workers (or equivalent) with KV/Durable Objects; header verification and injection; rate limiting.
• Reads protocol specifications precisely (UCP, RFC 9421, RFC 8693, OpenID specs) and cites the section; delivers from acceptance criteria without supervision.
Nice to have:
• BBS+ / zero-knowledge predicate tooling; Google UCP or Merchant Center integrations; loyalty-programme or promotions systems; Python enough to pair with Role 2 on the blueprint binding; e-commerce fraud or bot-management experience.
NMK Global Inc. is an Equal Opportunity Employer. We are committed to creating an inclusive workplace and consider all qualified applicants without regard to age, race, color, religion, sex, national origin, disability, protected veteran status, sexual orientation, gender identity, or any other characteristic protected by applicable law.
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