Senior Full Stack Developer (Node.js, React) | Long Term Opportunity

We're looking for an experienced Full Stack Developer to join our team for a long term engagement. We're building a modern operations platform and need someone who enjoys solving complex backend challenges, building scalable systems, and taking ownership of features from planning through deployment. This is the first of several products in our roadmap, so we're looking for someone who wants to grow with our team over time. Project Overview You'll be building a business operations platform that helps companies manage products, orders, inventory movement, and sales across multiple channels from a single dashboard. Responsibilities Product and inventory management Warehouse and location management Purchase orders and stock transfers Order fulfillment and backorder handling Reporting and business analytics Role-based user permissions Third-party marketplace and shipping integrations REST APIs and scalable backend services Tech Stack Backend: Node.js, NestJS Frontend: React, Next.js Database: PostgreSQL Infrastructure: AWS What We're Looking For Strong experience building production web applications Experience designing scalable APIs and database architecture Background in inventory, ERP, warehouse management, logistics, or eCommerce systems Experience integrating third-party REST APIs Clean, maintainable coding practices Strong communication and problem-solving skills Ability to work independently and take ownership Bonus Skills Amazon, Shopify, Walmart, eBay, or similar marketplace integrations Shipping and fulfillment APIs Real-time data synchronization Docker, CI/CD, and AWS deployments To Apply Please begin your proposal with "STOCK". Include: Similar systems you've built APIs you've integrated Weekly availability Hourly rate How you would keep inventory synchronized across multiple channels while preventing overselling We're looking for someone interested in a long term collaboration with consistent work and opportunities to contribute to future products as our team continues to expand.