https://jobs.fulfil.io/o/backend-engineer What You’ll Do Own the Full Stack: Take charge of our entire Python-based platform—from front-end integrations to back-end systems—maintaining and scaling a codebase of millions of lines that powers global commerce. Ship Features Fast: Drive the rapid design, development, and deployment of new features, delivering value to high-growth merchants at breakneck speed. Integrate AI: Build and embed AI-driven capabilities into our ERP, enhancing automation and intelligence for order management, financials, and beyond. Master Scale and Stability: Optimize REST and GraphQL APIs (600+ endpoints), microservices, and Kubernetes/Docker deployments to handle millions of transactions with zero downtime. Elevate Code Quality: Refactor legacy systems, write testable code with pytest, and collaborate on peer reviews to keep our stack robust and maintainable. Bridge Ecosystems: Integrate seamlessly with e-commerce platforms (Shopify, Amazon) and logistics partners (FedEx, DHL), ensuring our merchants’ operations hum. Solve at Scale: Tackle the real-world challenges of a B2B SaaS leader—think complex business logic, reusable components, and global infrastructure management. Job requirements What You Bring Experience building large-scale server-side applications and microservices with Python. Expertise with ORMs (e.g., SQLAlchemy, Django) and SQL databases (Postgres preferred). Proficiency in our stack: Python, Celery, Postgres, Redis, RabbitMQ. Hands-on experience with testing (pytest) and Git for version control. A track record of delivering scalable, maintainable code with a focus on ownership—leading projects from design to deployment.