Full-Stack Engineer: ERP/Fintech Backend (Greenfield)

Raydar; United States; Hybrid; USD 170,000 - 230,000; Full time

Benefits offered by this job

Competitive equity

Job summary

Raydar is seeking a backend-focused Full-Stack Engineer to architect data models, APIs, and services behind new finance modules. You will bring ERP/fintech domain knowledge, own greenfield work from design through deployment, and help expand the platform into a full financial reporting system.

The role requires 3–7 years of backend or full-stack experience, strong Python/ FastAPI/ PostgreSQL/ GraphQL skills, and a track record of delivering greenfield features.

Qualifications

• 3 to 7 years of backend or full-stack engineering experience building production systems, with 5+ years preferred.
• Mastery of Python, FastAPI, PostgreSQL, and GraphQL.
• Experience at an ERP, fintech, or accounting software company, including data modeling for invoicing, payments, or financial reporting.
• Strong schema design skills and a practical command of OLAP versus OLTP trade-offs.
• A track record of driving greenfield features from design to deployment, not only maintaining existing systems.
• Fluency with accounting and finance concepts and the ability to collaborate directly with domain stakeholders.
• Experience designing clean, client-facing APIs for integrations with HR, payroll, or accounting tools.
• Familiarity with Docker, CI/CD, React, or WebSockets.
• Experience working in defense technology or manufacturing software

Responsibilities

• Design data models for invoicing, payments, P&L reporting, and other complex financial workflows
• Build client-facing APIs that connect the platform with HR, payroll, accounting, and other external systems
• Architect backend services in Python and FastAPI with PostgreSQL, choosing thoughtfully between OLAP and OLTP approaches
• Aggregate operational data with labor, subscription, and finance inputs to produce reliable reporting
• Own substantial features end-to-end, from technical design and schema decisions through deployment and iteration
• Contribute to the React frontend when needed while maintaining primary ownership of backend systems

Skills

Python

FastAPI

PostgreSQL

GraphQL

Data modeling

Greenfield development

ERP/fintech domain

API design

Docker

CI/CD

React

WebSockets

Defense/manufacturing software

Tools

Docker

CI/CD

React

WebSockets

Job description

Raydar is seeking a backend-focused Full-Stack Engineer to architect data models, APIs, and services behind new finance modules. You will bring ERP/fintech domain knowledge, own greenfield work from design through deployment, and help expand the platform into a full financial reporting system.

The role requires 3–7 years of backend or full-stack experience, strong Python/ FastAPI/ PostgreSQL/ GraphQL skills, and a track record of delivering greenfield features.