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.

ResponsibilitiesFlat 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

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

- Remote Work: Work from anywhere—our team is general, 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.

📌 Amazon Flat File / Master File Specialist (Colombia)
🏢 Lago
📍 Colombia