# Amazon Flat File / Master File Specialist

- **Company:** Lago
- **Location:** AR (Remote)
- **Salary:** Salary not disclosed
- **Contract:** Full-time
- **Posted:** 2026-11-04

## Job description

Role: Amazon Flat File / Master File Specialist
Location: Remote
Schedule: East Coast Time Zone (9-5 Full-Time)
Salary Range: $8–$12 per hour (based on experience)
We are seeking a detail-oriented Amazon Flat File / Master File Specialist to support catalog management and listing integrity across a 3,000+ ASIN portfolio.
This role is focused on flat file creation, parent-child variation management, and Seller Central casework. The ideal candidate is execution-focused, highly detail-oriented, and comfortable working in a fast-moving Amazon environment where listings require constant monitoring and correction.
Accuracy, speed, and strong technical understanding of Amazon’s catalog structure are critical for success in this role.
Responsibilities
Flat File Creation & Management
Full flat file creation from scratch
Master file maintenance and updates
Variation theme configuration (size, color, style)
Bulk uploads via Seller Central
Parent-Child Variation Management
Build and maintain parent-child relationships
Troubleshoot orphaned child ASINs
Resolve broken variation families
Maintain clean SKU hierarchy
Seller Central Casework
Create and manage Seller Support cases
Resolve listing suppressions and stranded issues
Troubleshoot upload errors and feed processing reports
Escalate catalog conflicts when necessary
Catalog Monitoring & Maintenance
Monitor listing health across 3,000+ ASINs
Identify and correct structural catalog issues
Support parent ASIN tracking initiatives
Maintain accurate backend listing data
Requirements
Must-Haves (Non-Negotiable)
Hands-on experience with Amazon Seller Central (minimum 2 years)
Strong experience creating and troubleshooting flat files
Experience managing parent-child variation structures
Experience handling Amazon casework
Ability to read and resolve flat file upload errors
Ability to work East Coast hours
Strong English communication skills (written and verbal)
Ability to work independently with minimal supervision
Nice-to-Haves
Experience with Amazon Brand Registry
Experience managing high-variation apparel or footwear catalogs
Experience supporting 3,000+ ASIN portfolios
Familiarity with inventory forecasting or parent ASIN tracking systems
Experience using Asana or similar task management tools
Prior experience working with US-based Amazon sellers
Leadership or training experience
Ideal Candidate Profile
Highly detail-oriented and technically precise
Comfortable troubleshooting Amazon catalog issues daily
Execution-focused with minimal supervision required
Proactive in identifying listing structure problems
Organized and process-driven
Comfortable working in a high-volume Amazon environment
Benefits
Remote Work: Work from anywhere—our team is global, and we value work-life balance.
Growth Opportunities: As a key player you’ll have the chance to shape your role and grow with us.
Innovative Culture: Join a team that is passionate about leveraging data to solve challenges and drive success in a rapidly evolving market.
As part of our recruitment process, all candidates are kindly asked to read, understand, and agree to Lago’s Confidentiality and Non-Circumvention Agreement . This ensures a respectful and professional experience for everyone involved.

[Apply on the company site](https://www.joonow.com/en/job/amazon-flat-file-master-file-specialist-ztpbjq0a2p/apply)