Amazon Flat File / Master File Specialist

# Amazon Flat File / Master File Specialist > Lago · Argentina (Remote) · Full-time · Posted 2026-11-04 **Workplace:** remote **Department:** E-commerce ## 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_](https://docs.google.com/document/d/e/2PACX-1vT9d3IW-QW-lGpt7ZIU22uqvADQUVESDzQPAopkpb1Tzf6OVERy198VBtGBpnpKXw/pub)_. This ensures a respectful and professional experience for everyone involved._ ## Apply [Apply at Lago](https://apply.workable.com/lago-1/j/66B593A55B/apply) --- Powered by [Workable](https://www.workable.com)