Back-End Engineer - APIs & Database

Role SummaryThe Back-End Engineer builds robust APIs, services, and database layers that power StoreOps systems. This role ensures performance, security, and reliability of business-critical operations such as transactions and inventory updates.Key ResponsibilitiesAPI DevelopmentDevelop RESTful/GraphQL APIs for store applications.Build microservices supporting POS, inventory, and supply chain.Implement authentication and authorization mechanisms.Optimize APIs for performance and scalability.Database & Data ManagementDesign and maintain relational and NoSQL databases.Write optimized queries and stored procedures.Implement data integrity, indexing, and performance tuning.Manage data migrations and schema changes.IntegrationDevelop integrations with ERP, payment gateways, logistics systems.Implement event-driven messaging (Kafka, RabbitMQ).Support batch and real-time data pipelines.Testing & ReliabilityWrite unit and integration tests.Implement logging and monitoring.Support production deployments and incident resolution.Key DeliverablesProduction-grade APIs.Database schema and optimization.Integration services.Automated test coverage.Requirements4+ years of backend development experience.Strong proficiency in Java/Spring Boot, Node.js, .NET, or similar.Experience with SQL (PostgreSQL/MySQL/SQL Server) and NoSQL (MongoDB).Experience with API security (OAuth, JWT).Familiarity with cloud platforms and containerization.