Senior Python Backend Engineer - Commerce Core
Core
Design and build scalable backend systems for order management, inventory, and fulfillment to process millions of transactions monthly with minimal human intervention.
Role type
Senior Python Backend Engineer (Commerce Core)
Builds
Order allocation engines, inventory systems, and warehouse management solutions for merchants.
Domain
E-commerce logistics and supply chain
Deliverable
production ML models | product features
Required skills
Python, PostgreSQL (partitioning, query planning), system design at scale, debugging across services, technical mentoring
Preferred skills
Experience with high-volume transaction systems, multi-location warehouse setups
Technologies
Python, PostgreSQL, Redis, Celery, RabbitMQ, SQLAlchemy, Kubernetes, pytest, Claude Code
Responsibilities
Lead design reviews for re-architecting order allocation systems; Build prototypes and ship production code; Guide engineers on code reviews and edge cases; Monitor system performance during beta launches; Collaborate directly with merchant warehouse managers on system requirements.
Seniority
Senior, hands-on IC