> Markdown version of [/jobs/ext/3989104-core-banking-platform-architect-fiserv](https://www.wearedevelopers.com/jobs/ext/3989104-core-banking-platform-architect-fiserv). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Core Banking Platform Architect (Fiserv)

- **Company:** ITTCONNECT INC
- **Location:** Doral, FL, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Amazon Web Services, Audit Trail, Cyber Security, Data Flow Control, Role-Based Access Control, Data Streaming, Systems Integration, Information Technology, Apache Kafka, Api Gateway, Api Management, Mulesoft
- **Published:** October 28, 2026
- **Apply:** https://www.thejobnetwork.com/job/4518dc7b-f72d-4b21-97ad-ef64d59ac13f/core-banking-platform-architect-fiserv

## About the Role

n
\n

 * 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

## Description

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