Full-Stack Engineer (Backend-Focused)

Summary

Raydar is a seed-stage enterprise software company building an AI-native ERP platform for defense manufacturing. The company is seeking a backend-focused Full-Stack Engineer to design financial data models, APIs, and backend services for invoicing, payments, reporting, and integrations, while contributing to the React frontend as needed.

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

• 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
• Visa sponsorship is not available; candidates must be US citizens or green card holders
• 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
• Open to candidates based in the United States, with a preference for the West Coast

Qualifications

Must Haves

• 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
• Visa sponsorship is not available; candidates must be US citizens or green card holders

Nice to Haves

• 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
• Open to candidates based in the United States, with a preference for the West Coast

Benefits

• Competitive early-employee equity