Case Study: Unifying a Fragmented FinTech API Ecosystem
Industry: Financial Technology (FinTech)
Client Overview: A rapidly growing FinTech company providing payment processing
and lending services. Their explosive growth resulted in a chaotic landscape of inconsistent,
poorly documented, and insecure internal and external APIs, which was hindering their ability to
onboard new partners and scale their operations.
Testimonial: "CIS didn't just build APIs; they built a strategic foundation for
our future. The new governance framework has brought sanity to our development process and given
us the confidence to scale securely. Our partner onboarding time has been cut by more than
half." - Michael Harper, CTO, FinSecure Capital
Problem
The client's time-to-market for new integrations was lagging, security reviews were manual and
slow, and developers were spending more time deciphering old APIs than building new features.
The lack of a unified strategy created significant operational risk and technical debt.
Key Challenges
- Inconsistent API designs and security standards across teams.
- Lack of a centralized API catalog or developer portal.
- Manual, time-consuming security and compliance checks.
- Difficulty in monitoring API performance and identifying bottlenecks.
Our Solution
We implemented a comprehensive API governance and architecture program focused on
standardization, security, and developer enablement.
- Developed a pragmatic API Governance Framework with a centralized design authority.
- Designed and implemented a secure, scalable architecture using AWS API Gateway, Lambda, and
a federated GraphQL layer.
- Deployed Kong as a central API Gateway to enforce security policies (OAuth 2.0) and manage
traffic.
- Built an internal developer portal with automated documentation generation from OpenAPI
specs, providing a single source of truth.
60%
Reduction in Partner Onboarding Time
90%
Decrease in API-related Security Incidents
40%
Faster Development Cycles for New Features
Case Study: Powering an Omnichannel Retail Experience
Industry: Retail & eCommerce
Client Overview: A large, established retailer with hundreds of brick-and-mortar
stores and a growing eCommerce presence. They struggled with disconnected systems for inventory,
customer data, and order management, leading to a poor customer experience and operational
inefficiencies.
Testimonial: "The API-first architecture CIS delivered is the backbone of our
omnichannel strategy. We can now innovate at the speed of our customers' expectations. Real-time
inventory visibility across all channels was a game-changer for us." - Sophia Dalton, VP of
Digital Transformation, StyleHub Retail
Problem
Customers couldn't see in-store inventory online, online orders couldn't be returned in-store
easily, and marketing campaigns were hampered by siloed customer data. The legacy point-to-point
integrations were brittle and expensive to maintain.
Key Challenges
- Lack of real-time data synchronization between eCommerce, POS, and ERP systems.
- Inability to quickly launch new digital experiences like "buy online, pick up in-store."
- High cost and complexity of maintaining legacy integrations.
- Fragmented view of the customer journey across different touchpoints.
Our Solution
We architected and implemented an API-first, microservices-based platform to unify their retail
operations.
- Designed a domain-driven API architecture with distinct services for Product, Inventory,
Customer, and Order Management.
- Utilized Microsoft Azure API Management to secure and manage the APIs, providing a unified
access point for all internal and external applications.
- Implemented an event-driven architecture using Azure Event Grid to ensure real-time data
synchronization across all systems.
- Created a set of well-documented, reusable APIs that empowered the business to rapidly
develop new customer-facing applications.
300%
Increase in "Buy Online, Pick-up In-Store" Orders
Unified
View of Customer & Inventory Data
50%
Reduction in Integration Maintenance Costs
Case Study: Enabling Secure Healthcare Data Interoperability
Industry: Healthcare
Client Overview: A regional healthcare network aiming to improve patient
outcomes and operational efficiency by enabling secure data sharing between its hospitals,
clinics, and third-party lab partners. They needed to comply with strict HIPAA and FHIR
standards.
Testimonial: "Navigating healthcare compliance is incredibly complex. CIS's
expertise in FHIR and secure API architecture was invaluable. They built a platform that not
only meets today's standards but is flexible enough for tomorrow's challenges." - Dr. Aaron
Welch, Chief Medical Information Officer, HealthBridge Network
Problem
Patient data was locked in siloed EMR/EHR systems, making it difficult for clinicians to get a
complete view of a patient's history. Sharing data with external partners was a manual,
insecure, and error-prone process, delaying patient care.
Key Challenges
- Ensuring strict HIPAA compliance and patient data privacy.
- Integrating with multiple legacy EMR systems with different data formats.
- Implementing the complex FHIR (Fast Healthcare Interoperability Resources) standard.
- Providing secure, audited access for third-party applications and partners.
Our Solution
We designed and built a secure, compliant, and interoperable Health Information Exchange (HIE)
platform powered by a robust API architecture.
- Architected a FHIR-compliant API layer that normalized data from various legacy systems into
a standard format.
- Implemented a multi-layered security architecture on Google Cloud (Apigee) with granular,
consent-based access controls to meet and exceed HIPAA requirements.
- Developed a comprehensive auditing and logging system to track every single data access
request.
- Created a secure developer portal for third-party partners to register their applications
and access the necessary APIs safely.
100%
HIPAA & FHIR Compliant Architecture
75%
Reduction in Time to Access Patient Records
Seamless
Integration with 5+ EMR Systems