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PayOrbit: DCAA-Compliant Payroll & Invoicing for Government Contractors

Full-stack payroll and invoicing platform built with NestJS, Aurora Serverless v2, and React. Designed for DCAA compliance from day one.

The Challenge

Small GovCon businesses struggle with DCAA-compliant payroll. Off-the-shelf tools like QuickBooks don't understand government contract accounting rules. Dedicated GovCon accounting software costs $500+/month. Small businesses need affordable, compliant payroll that handles ACH payments, invoicing, and audit trails.

The Solution

PayOrbit is a purpose-built payroll and invoicing platform for government contractors. It handles ACH payment processing, automated payroll calculations with DCAA-compliant cost allocation, invoice generation and tracking, and full audit trails for every financial transaction.

Key Features

DCAA-Compliant Payroll: Automated calculations with proper cost allocation across contracts
ACH Payment Processing: Direct bank transfers for payroll and vendor payments
Invoice Management: Create, send, and track invoices with automatic reminders
Audit Trail: Every transaction logged with timestamps, user attribution, and change history
Multi-Contract Support: Allocate labor costs across multiple government contracts
Role-Based Access: Separate permissions for admins, accountants, and employees

Technology Stack

TypeScript NestJS Prisma PostgreSQL Aurora Serverless v2 Lambda React CDK

Architecture

NestJS API layer with Prisma ORM connecting to Aurora Serverless v2 PostgreSQL. React frontend served via CloudFront. Lambda functions handle background processing (ACH batching, report generation). All infrastructure defined in CDK. Deployed to us-east-2.