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Juliana Torrisi, RecruiterJob Title
Senior Full-Stack Developer – Marketplace Data Aggregation (Contract)
Job Description
We’re looking for an experienced Senior Full-Stack Developer to build a trading card price monitoring website (initially focused on Pokémon) that aggregates pricing data from multiple marketplaces, including TCGplayer (US), Cardmarket (EU), eBay, Amazon, and a Japanese Pokémon marketplace. This is a data-heavy project involving API integrations and/or scraping, matching the same cards across platforms despite different naming conventions, sets, languages, and regional condition standards (e.g., US “LP” vs EU “Excellent”), and displaying marketplace-specific prices (no averaging) in a clean, filterable web interface with text search and homepage views such as “top movers.” We are non-technical founders and value clear communication, practical trade-offs, and a working MVP over design polish.
Responsibilities
- Design and build a full-stack web application (backend + frontend)
- Aggregate pricing data from multiple marketplaces via APIs and/or scraping
- Normalize and match cards across inconsistent data sources
- Implement condition mapping across regions
- Build search, filtering, and basic homepage views
- Set up scheduled data refreshes
- Document assumptions, limitations, and setup clearly
Required Experience & Skills
- Strong full-stack development experience (Python or Node.js preferred)
- Experience integrating third-party APIs and/or building reliable scrapers
- Experience working with messy, inconsistent marketplace or e-commerce data
- Database design experience (PostgreSQL, MySQL, or similar)
- Modern frontend framework experience (React, Next.js, Vue, etc.)
- Ability to explain technical decisions in plain English
Nice to Have
- Marketplace, pricing, or inventory system experience
- Product matching or data normalization experience
- Familiarity with trading cards or collectibles
Project Details
- Type: Contract / Freelance
- Scope: MVP build (2–3 marketplace integrations)
- Engagement: Hourly or fixed-price (open to recommendation)
- Future work: Possible long-term collaboration