Qualis1 Inc. · 11 hours ago
Payment Specialist
San Jose, CA
Contract
Onsite
Senior Level, Lead/Staff
8+ years expQualis1 Inc. is looking for a highly experienced Payment Domain Specialist to play a critical role in a large-scale payments migration initiative. This role involves ensuring that payment business semantics, integrity, and compliance are preserved end-to-end while acting as the bridge between business logic, engineering, and compliance.
Responsibilities
Define and validate authoritative meanings for:
Authorizations, Captures, Settlements
Reversals, Refunds, Chargebacks
Establish lifecycle state machines and invariants
Define payment-specific CRUD contracts and query expectations
Validate idempotency and reconciliation invariants
Identify and validate high-risk scenarios:
Partial failures, retries, duplicate messages
Reconciliation mismatches
Ensure auditability and regulatory requirements:
Immutable records
End-to-end traceability
Accurate reconciliation
Participate in contract testing and workload replay
Provide final sign-off on domain readiness
Qualification
Required
8–12+ years in the payments domain (Issuer, Acquirer, Processor, FinTech)
Deep expertise in payment flows & financial reconciliation
Idempotency and retry semantics
Strong collaboration experience with engineers and architects
High data literacy (tables, joins, event-driven systems)
Company
Qualis1 Inc.
At Qualis1 Inc., our robust business model is strategically built upon serving diverse industry sectors, including Finance, Health Care, Education, State Government, and Manufacturing.
51-200 employees
Funding
Current Stage
Growth StageCompany data provided by crunchbase