Keep dated facts and payroll snapshots
Effective-dated records preserve when a value applies; payroll rule snapshots preserve the inputs used by a calculation. This gives later workflows a traceable basis without rewriting history.
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Workforce and payroll platform · AFT Solutions
Payflow
Payflow is a workforce and payroll product under development at AFT Solutions. My work to date has focused on the application backend: establishing tenant-aware foundations and implementing selected workforce, approval, and compensation workflows.
- Role
- Full-Stack Software Engineer · backend ownership
- Engagement
- AFT Solutions
- Timeline
- September–October 2026
- Status
- Deployed demo · preparing for launch
(01) The problem
Workforce and payroll workflows need clear tenant boundaries and a reliable history of sensitive changes.
(02) What I worked on
- 01
Tenant-aware application foundation
Implemented identity, organization membership, tenant isolation, and access scopes for self, team, and tenant-level workflows.
- 02
Workforce and compensation workflows
Built backend flows for employment data and effective-dated compensation records, preserving the history needed to explain which values apply over time.
- 03
Controlled sensitive changes
Added maker-checker approval paths for sensitive bank and compensation changes, with a review trail instead of immediate unreviewed updates.
- 04
Durable event handling
Implemented outbox/inbox processing with retries and deduplication so internal events can be handled reliably across background work.
(03) Engineering decisions
Require review for high-impact edits
Bank and compensation changes use approval workflows so the person proposing a change is not the only person able to finalize it.
Treat retries as normal
Outbox and inbox records make retries and duplicate event delivery explicit rather than relying on a one-time in-process action.
(04) Delivery & status
Where it stands.
A deployed demo with platform foundations and selected HR workflows in place. Broader payroll and compliance capabilities remain in development.
- The current delivery is a deployed demo being prepared for launch; I do not present it as a customer-used production payroll service.
- Broader payroll, compliance, and external payout capabilities are still in development.
(05) Technology
- C#
- .NET 10
- Entity Framework Core
- PostgreSQL
- Redis
- Hangfire