The Challenge
For an HR platform serving thousands of businesses, payroll accuracy, compliance reporting, and workforce analytics depend on timely, consistent data across every system. The organization's data infrastructure could not deliver this reliably.
Data originated from diverse processes and merged entities, each with unique ingestion patterns. Governance and integration grew more difficult with every new source added. The legacy stack, built on Informatica-based pipelines and Oracle DB implementations, had accumulated technical debt that limited agility and blocked modernization efforts.
Onboarding a new dataset or supporting a new business capability required a significant pipeline redesign, delaying responsiveness to evolving needs. Long data loading processes slowed dataset availability in Tableau, regularly missing reporting SLAs. The existing infrastructure could not support AI/ML model training or operationalization, restricting the organization's advanced analytics ambitions entirely.
Our Approach
Coforge designed and built a modern, cloud-native, metadata-driven data platform on AWS, replacing the legacy stack and consolidating the organization's fragmented data estate into a governed, scalable foundation.
Governed Three-Layer Data Lake
Coforge implemented a governed three-layer data lake using AWS Lake Formation, centralizing all data sources into a single, secure environment with role-based access controls, automated tagging, and policy-driven compliance. This replaced fragmented, source-specific data flows with a unified foundation for both operational reporting and advanced analytics.
Metadata-Driven Ingestion Framework
A metadata-driven framework was introduced that enabled business users to onboard new datasets and attributes directly through a front-end interface, without pipeline redesign. Metadata was stored in Aurora MySQL and dynamically applied by Airflow, which orchestrated all ingestion and transformation workflows in a consistent, automated manner.
High-Performance Processing and Analytical Warehouse
Coforge adopted EMR Serverless to accelerate large-scale data processing, reducing the cycle times that had delayed reporting and missed SLAs. An analytical warehouse was built in Redshift to serve curated, high-quality data for Tableau and Power BI dashboards, with raw and curated datasets in the data lake made accessible for AI/ML model training.
Governance Automation and Security
Coforge automated data governance through role-based access, tags, and policies across the platform, replacing manual reconciliation and oversight processes. This strengthened the organization's compliance and auditability posture while eliminating the recurring governance effort.

Impact to Date
70-75%
95%
7x
75%
80 hrs
Business Impact
- Ingestion and transformation workflows are now standardized and automated across all data sources, replacing the inconsistent, source-specific processes that had complicated governance and integration.
- New dataset onboarding, previously a resource-intensive redesign exercise, is now configuration-driven through the metadata framework, cutting onboarding effort by 95%.
- Data processing cycle time fell from 7 days to 1 day, ensuring datasets are available for operational and regulatory reporting within SLA.
- Data quality error rates reduced by 75%, driven by a governed, centralized data environment that eliminated the fragmentation and manual reconciliation of the legacy setup.
- Automated governance across role-based access, tags, and policies saves 80 hours per month in data governance overhead, while strengthening compliance and auditability.
- Raw and curated datasets in the data lake are now accessible for AI/ML model training, enabling the advanced analytics capabilities that the legacy infrastructure had made impossible.
The organization now operates a data platform that matches the scale and complexity of the business it supports. From legacy stack replacement to governance automation to AI/ML enablement, Coforge delivered a complete transformation of the data estate, underpinned by deep AWS expertise and a clear understanding of what enterprise HR operations demand from their data infrastructure.
