Backend Software Engineer (Supply Chain & Logistics)

About the Role

Our client is a fast-growing e-commerce company delivering premium Korean food and lifestyle products across the United States. Headquartered in Carson CA with an additional fulfillment center in Pennsylvania the company ships over 1000 refrigerated frozen and shelf-stable products nationwide.

The company is hiring a Software Engineer to build and scale the supply chain systems and Warehouse Management System (WMS) that power its cross-border commerce and logistics operations across the U.S. and this role you will design event-driven data pipelines integrate with external sales and operational platforms at scale and develop inventory fulfillment and operational systems supporting end-to-end supply chain workflows. You will work closely with both U.S. and Korean teams to build scalable logistics infrastructure and internal operational tools from the ground up.

Requirements

Key Responsibilities

• WMS development: design and build core Warehouse Management System features including inventory tracking order fulfillment warehouse operations and internal logistics workflows used daily across U.S. logistics centers.
  
• Event-driven data processing: architect and implement event-driven pipelines to reliably process high-volume order inventory and operational data across distributed systems.
  
• External integration and data synchronization: integrate with external sales channels and platforms (e.g. Shopify) using webhooks APIs and ETL pipelines ensuring reliable real-time data synchronization across systems.
  
• Supply chain data architecture: design the foundational data models and workflows required to support end-to-end supply chain and import/export operations.
  
• Cross-team collaboration: work with U.S. and Korean teams to identify operational challenges coordinate technical solutions and improve internal processes.
  

Required Qualifications

• 5 years of professional software development experience using TypeScript.
  
• 3 years of strong backend/server-side development experience with .
  
• Experience with event-driven architectures and message queue systems (e.g. Inngest Redis Pub/Sub BullMQ).
  
• Experience building data synchronization pipelines using webhooks APIs and ETL processes.
  
• Experience integrating with external platforms at scale including handling API rate limits quotas retries and authentication flows while maintaining data consistency across distributed systems.
  

Preferred Qualifications

• Experience developing Warehouse Management Systems (WMS) or fulfillment/logistics platforms.
  
• Experience developing Shopify apps or integrating with e-commerce platforms.
  
• Experience with PostgreSQL and database optimization for high-volume workloads.
  
• Experience with serverless backend platforms (e.g. Cloud Functions Firebase Supabase Hasura).
  
• Strong communication and collaboration skills in cross-functional team environments.
  
• Ability to read and write technical documentation in English and/or Korean.
  

Why Join

• Directly contribute to global e-commerce infrastructure high-volume order processing systems and warehouse management platforms connecting Korea and the U.S.
  
• Take on meaningful technical ownership influence system architecture decisions and build innovative logistics and commerce systems at scale in a rapidly growing company.
  

Benefits

Compensation & Benefits

• Base salary: $105000 - $120000.
  
• Medical dental vision and life insurance (65% employer-paid).
  
• Paid time off (PTO).
  
• Paid holidays.
  
• Paid sick leave.
  
• Company-provided lunch.
  
• Employee discount.
  

Location & Schedule

• Based in Carson CA.
  
• Full-time. Work arrangement (onsite/hybrid) to be confirmed.