International human rights NGO · via Relief Applications · 2026
Handed over
A payroll allocation platform, audited end to end.
Context
A timesheet and payroll allocation app, built by the consultancy’s team, that the client’s staff rely on to close each month. Its numbers had to match the client’s own workbooks.
What I did
- Audited it end to end against the client’s files and fixed 17 defects.
- Fixed controls that reported “compliant” on empty months.
- Guarded closed months and deposited payroll against later imports.
- Shipped staff requests: split allocations, Excel paste, multi-month uploads, part-time patterns.
- Unblocked a stalled month-close traced across six layers of the app.
- Wrote client updates in French, and handed over once the client ran it alone.
Outcome
- December 2025 allocation matrix reproduced to the cent.
- 219 of 222 cells of the coverage workbook matched.
- 2025 payroll: 80 of 92 employees within one euro at first reconciliation; the remaining gaps traced and since fixed.
- About 7% inflation of a year of one office’s payroll prevented.
- €27,830 of unattached payroll cost flagged (8 people).
- About 200 false budget overruns caught before deploy.
- 3,138 lines and 1,342 columns checked in production: zero discrepancies.
Python / FlaskPostgreSQLReact
pytest