Payroll Validation & Analytics System
Internal system combining Python-based payroll validation workflows, Excel reconciliation outputs, and web dashboards to compare ERP results with rule-based calculations and expose operational metrics in a more usable way.
Outcome
Reduced spreadsheet-heavy review work by centralizing payroll validation outputs, reconciliation flows, and operational visibility through internal tooling.
Context
Payroll operations often depend on comparing ERP-generated values with expected calculations derived from business rules, while also tracking operational indicators across clients, routines, and internal workflows.
When this is handled manually, analysts usually rely on multiple spreadsheets, exported reports, and repetitive validation steps, making the process slower and harder to review consistently.
Problem
The original workflow had a few recurring pain points:
- Manual comparison between ERP outputs and expected payroll rules
- Spreadsheet-heavy reconciliation and validation routines
- Limited visibility into operational metrics and review status
- Higher effort to investigate inconsistencies across reports
Solution
I worked on a system that combined backend automation and web visibility for payroll-related workflows:
- Python routines to validate payroll calculations against business rules
- Integration with ERP and legacy database data sources
- Generation of Excel reconciliation reports for structured review
- Web dashboards built with React, TypeScript, and Next.js to expose metrics and validation outputs
This made it easier to move from fragmented spreadsheet analysis to a more centralized and repeatable operational workflow.
Engineering Notes
- Python used for validation logic, automation, and data processing
- SQL and legacy database integration for operational data access
- Excel outputs designed for reconciliation and analyst review
- Next.js and React used for internal dashboards and visualization
- Architecture centered on practical workflows and operational clarity
Impact
- Reduced manual review effort in payroll reconciliation routines
- Improved visibility into payroll validation workflows
- Centralized outputs previously scattered across spreadsheets and reports
- Supported faster investigation of inconsistencies in payroll operations
Confidentiality
This project is documented as a private case study. Source code, business rules, client information, and internal datasets are not included due to company policies and confidentiality requirements.