3 - Forward Deployed Engineer, Identity, UCP & Wallets (TypeScript

TalentOla • Anchorage, AK

21d • Remote

About The Position

This role focuses on implementing a verified loyalty identity system through an agent handshake on UCP and a protocol-agnostic rail. The goal is to build a proof of concept for a wallet-held Verifiable Credential. The engineer will be responsible for implementing the UCP side, building a protocol-agnostic rail, developing the Verifiable Credential POC, and implementing and running a loyalty-fraud test suite. Additionally, the role involves writing integration guides and building demo storefronts.

Requirements

• 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 Haves

• 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

Responsibilities

• Implement the UCP side: namespaced com.experian.agent_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.

What This Job Offers

• Career Level: Senior
• Education Level: No Education Listed