Fueleo - Multi-Tenant Fuel Industry SaaS
About the Project
- Company: Fueleo
- Role: Backend Developer
- Location: Remote
- Website: https://getfueleo.com
Objective
Lead backend development of a scalable multi-tenant B2B SaaS platform for the U.S. fuel industry, covering tax calculation, BOL-based inventory consumption, pricing logic, purchase/sales orders, invoicing, and billing workflows.
Tools & Technologies
Python, FastAPI, SQLAlchemy, Alembic, PostgreSQL, Docker, Redis, Taskiq, AWS S3
My Role
As backend developer, I designed the multi-tenant architecture and core domain modules for a B2B SaaS platform serving fuel distributors across the U.S. This included tax calculation engines, BOL-based inventory consumption tracking, dynamic pricing logic, and end-to-end purchase order, sales order, invoicing, and billing workflows.
Built integrations with QuickBooks Online and other accounting systems to keep financial records in sync across tenants, using FastAPI, SQLAlchemy, and Alembic for migrations, containerized with Docker and backed by PostgreSQL, Redis, and Taskiq for background processing.
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