Core Banking Platform Architect (Fiserv)

ITTConnect is seeking a Platform Architect expert in Fiserv for a direct-hire full time position with a client in Miami., n \n

• Own the architecture of the Fiserv/Finxact platform ecosystem: product-factory model, data model, parameterization limits, ledger/GL structure and Fiserv-native capabilities (payments rails, cards/lending). \n

• Define how the Fiserv/Finxact platforms expose and consume APIs, setting integration contracts and standards at the boundary between Finxact and the rest of the ecosystem. \n

• Serve as the technical authority on Finxact’s operating model, what is achievable via configuration vs. code, and the Fiserv vendor roadmap - ensuring core decisions are defensible before a regulator. \n

• Produce and maintain versioned Architecture Decision Records (ADRs) and current platform documentation - examination evidence expected by OCC / FFIEC . \n

• Embed platform-level security, resilience and data-governance controls (RBAC / segregation of duties, encryption, audit trails, multi-region resiliency) aligned with InfoSec. \n

• Act as the technical counterpart to Fiserv/Finxact and partners, validating solution architecture, configuration approach and delivery model against Itaú’s reference architecture. \n

• Partner with the Core Banking Engineering Lead, Config Specialists (Core/Deposits, Payments, Cards & Lending), Integrations and Release & Quality to ensure the platform architecture is buildable and audit-ready. \n

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• 15+ years of experience in IT. \n

• 8+ years in platform / solution architecture, including modern core banking in a U.S. banking context. \n

• MUST HAVE Deep, hands-on knowledge of the Fiserv ecosystem \n

• Finxact experience is strongly preferred (data model, parameterization, APIs, Config-as-Code). \n

• Strong command of API-led / event-driven integration patterns and secure, high-volume data flows on AWS (API Gateway; Lambda / EventBridge / Kafka a plus). \n

• Understanding of U.S. payments rails (Fedwire, ACH, RTP, FedNow), OFAC screening, cards and lending on a core platform. \n

• Rigorous documentation discipline (ADRs, HLDs, data-flow maps); comfortable in a regulated, audit-driven environment. \n

• Nice to have MuleSoft (or equivalent iPaaS / API management) experience. \n

• At least one prior U.S. regulatory examination experience. \n

• Bachelor’s degree in Information Technology or related field. \n