Bank-grade
Security from day one
<200ms
Primary integration latency
SOC 2 ready
Controls documented at launch
40%
Outages from API failures avoided
Client Snapshot
Industry
FinTech
Solution
IT Consulting | Cloud Solutions | Data Solutions
Complexity
High
Delivery
Architecture + Implementation
The Problem
FinTech platforms consistently underestimate sponsor bank core integration complexity. The integration between a FinTech platform and its sponsor bank core system (FIS, Fiserv, Jack Henry) is not a standard API connection it involves specific connectivity requirements, rate limits, data formats, authentication patterns, and compliance data capture obligations that vary by core platform and by sponsor bank program agreement. Most FinTechs discover these requirements at production scale rather than during architecture design, when remediation is most expensive.
Bank sponsors and regulators hold FinTech platforms to bank-equivalent security standards for systems that touch customer financial data. SOC 2 Type II certification, encryption standards at rest and in transit, API key management, and access control architecture are not optional compliance checkboxes they are program agreement conditions that determine whether the FinTech can continue operating under its bank partnership. Building these controls into the integration architecture from design is substantially less expensive than retrofitting them after launch.
Ready to Start?
Schedule a FinTech Integration Architecture Review
Get a candid assessment of your current integration security posture, performance gaps, and SOC 2 readiness.
40%
of FinTech platform outages trace to third-party API dependency failures, per FinTech infrastructure benchmarking data. Circuit breakers, retry logic with exponential backoff, fallback paths, and dependency health monitoring are the operational engineering foundation that FinTech platform reliability requires and the elements most commonly absent from initial integration architectures.
How PiTech Delivers
01
Integration Architecture Design
API gateway architecture with authentication, rate limiting, versioning, monitoring, and circuit breaker patterns designed for bank-grade reliability from the start. Sponsor bank core connectivity requirements assessed and integration patterns optimized for the specific core platform FIS, Fiserv, Jack Henry, or custom.
02
Security and Compliance by Design
OAuth 2.0/OIDC identity, API key management, FIPS-compliant encryption at rest and in transit, and access control architecture designed into the integration layer before the first line of production code is written. SOC 2 Trust Services Criteria controls documented during build not reverse-engineered before audit.
03
Resilience and Observability Engineering
Circuit breakers, retry logic with exponential backoff, fallback paths, and dependency health monitoring. SLA-level visibility into every third-party API dependency before customer-facing incidents surface failures. Bank maintenance window handling built into the architecture transparently.
04
Compliance Data Layer Implementation
Transaction audit logging, consumer data flow mapping, and GLBA/CFPB/sponsor bank reporting data structures implemented from day one. Regulatory data requests answered in hours from structured logs not weeks from fragmented event streams.
Proven Outcomes
<200ms
API performance achieved on primary banking integration paths
SOC 2
Type II readiness delivered as build output in FinTech programs
18+ yrs
Financial services experience sponsor bank program requirements depth
Proven Outcomes
18+
Years in Regulated Industries
What You Gain
Bank-grade
Security architecture satisfying sponsor bank program requirements from launch
<200ms
API performance on primary banking and payment integration paths
SOC 2 ready
Type II controls documented for audit on defined timeline
Resilient
Circuit breakers and dependency monitoring preventing cascade failures
What's Included
API gateway architecture
API gateway architecture
Sponsor bank core integration
Sponsor bank core integration
Payment rail integration
Payment rail integration
OAuth 2.0 and API security layer
OAuth 2.0 and API security layer
Resilience engineering
Resilience engineering
Compliance data capture
Compliance data capture
Observability stack
Observability stack
Frequently Asked Questions
Which sponsor bank core systems does PiTech have integration experience with?
PiTech has integration architecture experience with FIS Horizon, FIS Modern Banking Platform, Fiserv Finxact, Fiserv DNA, Fiserv Signature, and Jack Henry SilverLake and Episys as well as direct integration with major payment networks and data aggregators including Plaid, MX, and Finicity. Integration patterns are platform-specific and reflect each core system’s actual connectivity requirements.
How does PiTech approach SOC 2 Type II readiness for FinTech platforms?
PiTech designs the security architecture against SOC 2 Trust Services Criteria from the initial integration design phase. Security controls are built into the architecture as it is constructed access controls, audit logging, encryption, availability monitoring, and incident response procedures. SOC 2 readiness is a product of the build process rather than a separate remediation engagement initiated after launch.
What is the timeline from integration architecture design to production launch?
A focused integration program covering one sponsor bank core system and two to three payment rails typically runs 4–6 months from architecture design to production. Larger multi-bank, multi-rail programs run 9–12 months. Security architecture review, compliance data layer validation, and SOC 2 control documentation add 4–6 weeks to the timeline but prevent significantly more expensive post-launch remediation.
How does PiTech handle sponsor bank maintenance windows in the integration architecture?
Planned maintenance windows are predictable events that the integration architecture should handle transparently. PiTech designs maintenance window handling into the integration layer: graceful degradation with customer-facing messaging, queued transaction processing during outage windows, and automated reconciliation and resumption after restoration. Bank maintenance windows should never produce customer-facing incidents at a well-architected FinTech platform.
What does bank-grade security mean in practice for FinTech integration architecture?
Bank-grade security for FinTech integration means : OAuth 2.0/OIDC with rotating credentials for all API authentication, AES-256 encryption for data at rest and TLS 1.2+ for data in transit, API key management with automated rotation and least-privilege access, access logging that satisfies SOC 2 audit requirements, and network security controls that isolate banking integration components from other platform services.
FinTech platform reliability starts at the integration layer. PiTech builds bank-grade integration architecture that scales with your product.
Contact PiTech to begin with an integration architecture and security posture review.
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