Expenra — accounting SaaS built for multi-organization small-business workflows.

Project Context

What Expenra is

Expenra is a co-founded SaaS product I am building with my cofounder. It focuses on multi-organization accounting workflows, finance operations, billing, banking integrations, and AI-assisted actions in a single authenticated workspace.

The platform includes live integrations across Stripe billing, Plaid banking sync, secure sessions, and a multi-model AI assistant.

My Role

Co-Founder & Full-Stack/Product Builder

• ▸Full-stack feature development across the application
• ▸Multi-organization workspace architecture and routing
• ▸Stripe checkout and subscription billing integration
• ▸Plaid banking connection and sync workflows
• ▸Multi-model AI assistant with tool execution
• ▸Redis-backed session management implementation
• ▸Protected API routes and access control patterns
• ▸Sentry monitoring integration and CI pipeline support
• ▸Product workflow design and implementation decisions

AI Integration

Multi-model AI assistant

The multi-model AI assistant integrates multiple LLM providers with server-side tool execution, streaming responses tied to the user's actual account data.

Tool-calling connects the assistant to real accounting data through validated server-side routes, so responses reflect the user's actual financial context. Raw database access stays behind validated server logic.

Integrations

Stripe & Plaid handling

Both Stripe and Plaid integrations include validated webhook handling — events are verified before any business logic executes, preventing spoofed or malformed webhook data from affecting the platform.

Stripe handles subscription lifecycle events. Plaid handles bank account connection and transaction sync events. Both use structured, security-focused input validation throughout.