Matrix Cloud Migration & Core Banking Modernization
Deconstructing legacy 15-year-old COBOL mainframe systems into resilient cloud-native microservices on AWS with zero seconds of customer downtime, saving 65% in infrastructure costs.
Decomposed a 15-year-old COBOL and monolithic mainframe system into cloud-native microservices on AWS with zero seconds of unplanned customer downtime.
Client
Matrix Financial Corp
Timeline
11 months
Discipline
Legacy Modernization & Custom Software Development
Deployment
Cloud & SaaS, Enterprise Platforms
Project Overview
Project Overview
Deconstructing legacy 15-year-old COBOL mainframe systems into resilient cloud-native microservices on AWS with zero seconds of customer downtime, saving 65% in infrastructure costs.
Codytics designed and developed Matrix Cloud Migration & Core Banking Modernization, a high-performance Fintech platform for Matrix Financial Corp, delivering a comprehensive digital solution across Cloud & SaaS and Enterprise Platforms.
Matrix Financial Corp is an established regional banking institution managing $18B in total assets, 450,000 retail checking accounts, and commercial lending portfolios across the Midwest.
Codytics delivered the full platform in 11 months, covering Legacy Modernization, Custom Software Development.
Aging mainframe infrastructure incurred $4M+ in annual licensing costs and blocked modern mobile banking API integrations, posing major systemic operational risk.
Matrix Cloud Migration & Core Banking Modernization was engineered to address these gaps through a workflow-first approach. Codytics designed the platform to optimize the entire operational lifecycle from ingestion to delivery with clarity, resilience, and operational discipline.
The product had strong vision, but the software was slowing the business down.
Aging mainframe infrastructure incurred $4M+ in annual licensing costs and blocked modern mobile banking API integrations, posing major systemic operational risk.
Core ArchitectureExtorbitant Mainframe Licensing & MIPS Costs
Mainframe processing fees and vendor licensing increased 22% year-over-year, draining capital away from customer-facing banking features.
User WorkflowFragile COBOL Spaghetti Codebase
Over 2.5 million lines of undocumented legacy COBOL made even minor interest-rate adjustments risky, requiring 6-month deployment cycles.
System PerformanceNightly Batch Processing Window Overruns
End-of-day ledger clearing jobs frequently bled into morning business hours, delaying mobile banking balance updates for retail customers.
The Solution
How Codytics solved these problems.
Implemented a strangler-fig pattern to progressively route transactions to containerized Go and Java microservices backed by AWS Aurora PostgreSQL with automated reconciliation scripts.
Solution 01•Zero-Downtime MigrationStrangler-Fig Migration Pattern
Intelligent reverse-proxy routing dynamically channeled account queries and transfer requests between mainframe and AWS microservices without user disruption.
Engineered for Matrix Financial Corp: high-concurrency throughput with resilient real-time failover.
Eliminated operational bottlenecks and established scalable foundations for future growth.
Solution 02•Multi-AZ ResilienceMulti-AZ Aurora PostgreSQL Cluster
Active-active distributed relational database replicating financial balances with synchronous multi-availability zone durability and automated failover.
Engineered for Matrix Financial Corp: high-concurrency throughput with resilient real-time failover.
Eliminated operational bottlenecks and established scalable foundations for future growth.
Solution 03•Automated ReconciliationReal-Time Event Reconciliation Engine
Automated shadow reconciliation continuously validating transaction outcomes between legacy COBOL and new Go microservices with zero discrepancy.
Engineered for Matrix Financial Corp: high-concurrency throughput with resilient real-time failover.
Eliminated operational bottlenecks and established scalable foundations for future growth.
Solution 04•GitOps AutomatedInfrastructure as Code & GitOps
Full Terraform and ArgoCD declarative deployment pipelines enabling SOC2-compliant, automated blue-green deployments in under 8 minutes.
Engineered for Matrix Financial Corp: high-concurrency throughput with resilient real-time failover.
Eliminated operational bottlenecks and established scalable foundations for future growth.
Methodology
11 months Modernization Vector
A battle-tested transformation sprint spanning stakeholder research, architectural isolation, token unification, and zero-downtime cutover.
COBOL Code Decomposition & Architecture
2.5M line COBOL business logic reverse engineering · Strangler-fig traffic router design · AWS multi-region network topology plan
Microservices & Shadow Run Validation
Core checking & savings Go microservices · Aurora PostgreSQL financial schema · 6-month shadow run with 100% ledger parity
OCC Regulatory & Stress Audit
Federal banking regulatory audit signoff · Disaster recovery regional failover simulation · Penetration testing & SOC2 Type II certification
Mainframe Decommission & Zero-Downtime Cutover
Zero-downtime final traffic cutover · Mainframe hardware decommission · 24/7 financial SRE operations transition
UX Foundations
Human-Centered Precision
How we balanced maximum informational density with instant optical parsing under high cognitive pressure.
Command Bar Ergonomics
Global ⌘+K keystroke switcher lets operators execute core actions, query records, and split displays without taking their hands off the keyboard.
Zero-Modal Architecture
Eliminated disruptive floating popups that break operator situational awareness. All contextual actions expand into non-blocking inline side-panels.
Optical Luminance Ratios
Engineered WCAG AAA compliant optical contrast formulas specifically calibrated for bright trading floors and intense daylight environments.
Feature Specifications
Engineered for High-Density Agility
Granular interactive components engineered from the ground up for instantaneous comprehension.
Modern Open Banking Core APIs
High-performance RESTful APIs enabling seamless integration with Zelle, Plaid, Apple Pay, and mobile banking applications.
Real-Time Continuous Ledger
Replacing batch processing with instant balance updates, credit card authorizations, and continuous interest calculation.
Automated Regulatory Reporting Hub
Automated compliance export pipelines fulfilling Federal Reserve and OCC audit mandates with zero manual staff intervention.
Disaster Recovery & Redundancy Vault
Cross-region automated snapshot replication ensuring Recovery Point Objective (RPO) < 1 minute and Recovery Time Objective (RTO) < 5 minutes.
Visual Identity
Style Guide
We use the following colours and typography in development of Matrix Cloud Migration & Core Banking Modernization.
Plus Jakarta Sans
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System Blueprint
Software Topology & Execution Pipeline
Implemented a strangler-fig pattern to progressively route transactions to containerized Go and Java microservices backed by AWS Aurora PostgreSQL with automated reconciliation scripts.
Strangler-Fig Migration Pattern
Intelligent reverse-proxy routing dynamically channeled account queries and transfer requests between mainframe and AWS microservices without user disruption.
Multi-AZ Aurora PostgreSQL Cluster
Active-active distributed relational database replicating financial balances with synchronous multi-availability zone durability and automated failover.
Real-Time Event Reconciliation Engine
Automated shadow reconciliation continuously validating transaction outcomes between legacy COBOL and new Go microservices with zero discrepancy.
Infrastructure as Code & GitOps
Full Terraform and ArgoCD declarative deployment pipelines enabling SOC2-compliant, automated blue-green deployments in under 8 minutes.
Validated Impact
Institutional Performance Measured
Post-rollout audit after continuous high-volume production operations.
0 sec
Audited & verified in production.
00%
Audited & verified in production.
00x
Audited & verified in production.
000%
Audited & verified in production.
“Migrating off a 15-year-old banking mainframe is the most intimidating project an IT department can face. Codytics executed the transition flawlessly with zero seconds of customer downtime and shaved $4M off our annual IT budget.”
Robert Chen
Chief Technology Officer, Matrix Financial Corp
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