Backend Engineer

Job Description

The backend engineer will be responsible for designing and developing key API functionalities for automated quoting, customer data management, electronic contract integration, chatbot/AI handoffs, and more. This is a foundational role with significant ownership over product logic, cloud infrastructure design, and system integration

Key Responsibilities

•  Design and implement RESTful APIs for quotation, contract, customer, and installation management
• Integrate external APIs (e.g., cloud contract platforms like CloudSign or GMO Sign)
• Set up Webhook-based backend triggers from chatbot and frontend
• Implement automation flows using Firebase Functions, Cloud Run, Zapier, or equivalent
• Manage backend data (Firestore / PostgreSQL / MongoDB) and ensure secure schema design
• Collaborate with frontend and AI engineers to ensure seamless feature delivery
• Establish CI/CD pipelines and scalable backend architecture (initially Firebase/GCP-based) 

Skills & Experiences

• 2+ years of backend development experience with Node.js (TypeScript) or Python (FastAPI, Flask, or Django)
• Strong REST API design knowledge with OpenAPI/Swagger experience preferred
• Practical experience with cloud platforms (Firebase, GCP, or AWS)
• Working knowledge of external API integration (e.g., authentication, contracts, maps, weather)
• Experience with Git-based team collaboration (PR workflows, branching strategies)
• Familiarity with Webhook logic and real-time event-driven architecture
• Nice to have
• Firebase Functions / GCP Cloud Run setup experience
• Familiarity with electronic contract APIs (CloudSign, GMO Sign)
• Experience with AI-related system integration (e.g., OpenAI APIs, data flow from chatbot)
• CI/CD knowledge (GitHub Actions or similar tools)
• Frontend exposure or appreciation for full-stack collaboration