Cloud, Security & Platform
Legacy System Integration
Building secure API wrappers, database connectors and ESB middleware to connect legacy mainframes with modern cloud apps.
Solution overview
What legacy system integration addresses
Legacy System Integration bridges legacy monolithic databases, mainframes and legacy software with modern cloud applications. We enable legacy systems to exchange data smoothly with new digital platforms without requiring risky, expensive system rewrites.
We build secure REST API wrappers around legacy databases, deploy Enterprise Service Bus (ESB) middleware and engineer database triggers.
Our legacy integration solutions unlock valuable legacy enterprise data, extend system lifespans and accelerate digital product launches.
Throughout the legacy system integration engagement, our engineering team works alongside your internal stakeholders to establish custom operational workflows, clear delivery milestones and automated validation gates. We focus on legacy database & api wrapper setup and enterprise service bus (esb) middleware, ensuring that every component is documented, secure and aligned with your broader technology strategy.

What is included
What the solution covers
Legacy Database & API Wrapper Setup
Engineering modern REST and gRPC API microservices that wrap legacy relational databases and mainframes.
Enterprise Service Bus (ESB) Middleware
Deploying MuleSoft, WSO2 or custom microservice ESB layers to orchestrate legacy data transformations.
Mainframe & Terminal Data Emulation
Extracting data from legacy green-screen mainframes and terminal systems via automated terminal emulation APIs.
Real-Time Data Change Capture (CDC)
Deploying Debezium and Kafka to capture legacy database mutations (CDC) and stream changes to cloud apps.
How we work
How we deliver legacy system integration
Legacy System & Database Discovery
Auditing legacy database schemas, stored procedures, data formats, network protocols and performance bounds.
Wrapper & Middleware Blueprint
Designing non-invasive API wrapper layers, CDC event streaming, data translation rules and security gateways.
API Wrapper & Microservice Engineering
Coding high-throughput API wrappers and data transformation layers using Node.js, Python or C++.
Data Integrity & Parity Testing
Testing data read/write transactions between cloud applications and legacy databases to verify 100% data parity.
Production Deployment & Support
Deploying API wrappers to cloud or on-premise container environments with active legacy connection monitoring.
Related components
Related components in Enterprise Integration Solutions
Payment Integration
Engineering secure global payment gateways, multi-currency processing, digital wallet integration and PCI-DSS compliance.
Data Integration
Building enterprise ETL/ELT pipelines, data warehouse ingestion, real-time data streaming and data lake synchronization.
Middleware Solutions
Engineering enterprise message brokers, event-driven microservices, API gateways and message queues for asynchronous data flows.
Enterprise Workflow Integration
Connecting cross-departmental software systems into unified, automated operational workflows across the enterprise.
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Questions & answers
Questions about Legacy System Integration
Cannot find what you need? Our team responds to technical and commercial questions within one business day.
Ask a questionLegacy integration is quoted as fixed-fee milestone engineering contracts or through dedicated integration care retainers.
Yes, we deploy Change Data Capture (CDC) and read-replica caching layers that read transaction logs without placing load on the active mainframe.
Our senior database engineers analyze transaction logs and execute automated data profiling to map exact schema relationships.
Next step
Discuss legacy system integration for your organisation
Tell us the outcome you need and the constraints you are working within. We will map the practical delivery path.