Core Payments
Core Payments Engineer, Issuance
Full-time · Remote · Contract
Build the card and gift-card issuance primitives agents call — idempotent, limited and safe enough to hand to an agent.
- Build an agent-callable issuance flow with idempotency, limits and audit hooks
- Wire issuance events into the platform's immutable audit log
- Design APIs meant to be driven by an agent, not just a human client
Why it matters
Correctness under money is a build problem, not a repeatable one. Someone has to design issuance flows that are safe to hand an agent; once built, agents operate them.
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Core Payments
Core Payments Engineer, Settlement Rails
Full-time · Remote · Contract
Build the settlement and reconciliation rails agents operate at scale — exactly-once, auditable and safe.
- Build settlement and reconciliation that flags a break before a human would
- Route reconciliation breaks to the escalation queue with full context
- Hold a high bar for correctness, exactly-once semantics and audit trails
Why it matters
Designing exactly-once settlement is exactly the kind of judgment work humans own. Agents run the rails; humans build them right.
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Core Payments
Core Payments Engineer, APIs
Full-time · Remote · Contract
Build the clean, versioned payment APIs the sales agent and partners drive to move money.
- Design a versioned payments API the sales agent uses for a client's first live transaction
- Guarantee idempotency and machine-safe semantics for an agent caller
- Partner with the platform team on identity, permissions and audit
Why it matters
The first live transaction runs through these APIs. Designing machine-safe, idempotent interfaces for an agent caller is judgment work, not repetition.
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