In my role as a software consultant, I specialized in developing, optimizing, and deploying retail technology solutions using the Oracle Retail Product Suite, with a focus on Point of Sale (POS) systems like OrPOS and Xstore. Leveraging my expertise in Java, Spring, SQL, and Maven, I consistently delivered high-quality software tailored to client-specific needs.I managed end-to-end software development processes, from design and implementation to testing and deployment, utilizing tools like Jira, GitHub/BitBucket, and Jenkins for CI/CD efficiency. In an Agile environment, I collaborated with cross-functional teams to deliver timely, scalable solutions that enhanced both in-store and enterprise-level operations.Key achievements included:- Developed responsive POS systems for desktop and mobile devices, ensuring seamless functionality across platforms.- Integrated APIs using SOAP and REST for Order Management Systems (OMS) and features like coupon processing and email validation.- Troubleshot and resolved payment authorization issues, reducing client authorization failures by 85% and ensuring PCI compliance.- Led deployments and served as the first point of contact for troubleshooting and client support, ensuring smooth transitions with minimal operational disruptions.- Designed SQL queries and optimized database structures to enhance sales audits and reporting, providing valuable insights for retail operations.