Payroll B2B multi-tenants Application

Paygital — Payroll System (Go / PostgreSQL)

**[paygital.net](https://www.twine.net/signin

Designed and built a payroll system from scratch for Paygital, fully
compliant with Dominican labor law. Co-Owned the system end-to-end:

• Architecture & Planning — architecture and technical-debt evaluation
• API & Data — REST API design, data/table modeling
• Security — authentication, authorization, and session management
• Quality — automated testing and regression prevention
• Observability — logging, metrics, and monitoring
• Deployment — Docker/CI-CD pipelines with feature flags and rollback
  strategies on DigitalOcean

Tools used: Cursor (UI implementation), ChatGPT Codex (backend business
logic, API design, code review), and Claude Code (technical and user
documentation).