Python (FastAPI) + Shopify App Developer | MIT Marketplace Startup

Python (FastAPI) + Shopify App Developer | MIT Marketplace Startup
Viana do Castelo
Viana do Castelo, Viana do Castelo District, Portugal

We’re an MIT-founded sourcing marketplace transforming how brands discover and work with global suppliers. Our platform automates sourcing workflows using Python, Temporal, and deeply integrated Shopify Apps , powered by AI-native development tools like Cursor.

We’re looking for a full-stack developer  who can own backend services, workflow automation, and — especially — Shopify app development at the core of our platform .

Tech Stack

Python (Fast
API) •   Temporal. io  • Postgres • Type
Script • Next. js • Shopify Apps (Custom App Framework) • Graph
QL

AI-accelerated engineering culture using Cursor, Copilot, Chat
GPT/Claude, Replit Agent

What You’ll Work On

• Build and maintain
  - impact Shopify Apps  (Admin API, Storefront API, OAuth, Webhooks, embedded app UI) — a critical pillar of our product
• Develop backend services with Fast
  API + Postgres
• Design and run Temporal workflows  for sourcing, quoting, and supplier automation
• Build new marketplace features with Type
  Script + React/Next. js
• Integrate
  - party APIs, Shopify data flows, and automated pipelines
• Use AI tools (Cursor, etc. ) to ship faster with high code quality
• Collaborate directly with founders on architecture, dev tooling, and product direction

 What We’re Looking For

• Strong Python (Fast
  API)  skills
• Deep experience building custom Shopify Apps
• Solid Type
  Script + React/Next. js  ability
• Hands-on with Postgres  schema design & optimization
• Familiar with Temporal , or eager to learn quickly
• Comfortable in a fast, AI-assisted startup engineering environment

 Nice to Have

• Marketplace or e
  Commerce experience
• Experience with LLM integration, vector search, or embeddings
• Logistics, sourcing, or supply chain familiarity

Why Join Us

• MIT-founded team
• High-impact,
  - ownership engineering role
• AI-native development culture (Cursor-first workflow)
• Build foundational infrastructure for a global sourcing platform