Backend Developer Intern

About Us We’re Hancod — a fast-moving, innovation-driven startup building Duxbe, an AI-powered Point of Sale (POS) and ERP solution. Our mission is to empower businesses across India and beyond with powerful and intuitive software. At Hancod, we care about clean code, great design, and getting things DONE. We believe the best work happens when there’s a balance of focus and fun. From Jenga battles to badminton matches and shared learning sessions, we grow together — personally and professionally. 🎯 Role Overview We are looking for a passionate and committed Backend Developer Intern to join our core team. As one of the early members, you’ll contribute directly to the development and scaling of the backend infrastructure powering multiple product modules. 🔧 Key Responsibilities Core systems & data Design and maintain robust relational data models for: Sales, invoices, payments Inventory & stock movements Customers, vendors, and staff Reports, ledgers, and audit logs Ensure data correctness, consistency, and traceability (no silent corruption). APIs & performance Build scalable, secure APIs (REST/GraphQL) for mobile and web clients. Optimize slow endpoints and database queries (indexes, query plans, caching). Handle high-frequency transactions without data loss or race conditions. ERP logic & workflows Implement business workflows: Order → invoice → payment → stock update Refunds, adjustments, cancellations Multi-branch / multi-user access controls Enforce role-based permissions at the system level. AI & automation integration Integrate AI services for: Natural-language commands (Duxbe Auto-Agent) Smart reports and insights Workflow automation triggers Design safe execution layers so AI suggests and executes without breaking data integrity. Reliability & security Implement logging, monitoring, and error tracking. Ensure secure authentication, authorization, and data access. Design for failure: retries, idempotency, rollback-safe operations ✅ Requirements Bachelor’s degree in Computer Science, Engineering, or equivalent field 0 -1 years of relevant experience Hands-on experience with Supabase (or Firebase) Strong knowledge of SQL / PostgreSQL Proficient in developing backend services using Node.js Ability to write optimized, secure, and well-documented backend code Exposure to building ERP/business modules is a plus. Note: This is a unpaid internship.Skills: javascript frameworks,supabase,postgresql,node.js,api design,backend development,sql