Avinash S

Full Stack Developer (Backend Focused) with 2.5+ years of experience in Java, Spring Boot, Microservices, SAP Hybris, and REST APIs. Skilled in building scalable backend systems, API integrations, and distributed applications. Strong problem-solving skills. Recently focused on GenAI applications, building solutions using LangChain, RAG, Vector Databases, Hugging Face, and AI-powered workflows.

Software Engineer at Tata Consultancy Services (2023-10 – Present)

• Developed and maintained backend functionalities using Spring Framework and SAP Hybris(CCV2) for an eCommerce platform for a US-based client, focusing on scalable architecture and efficient data handling to support complex product operations.
• Implemented product lifecycle management including product creation, updates, and categorization, ensuring consistency and accuracy across a product catalog of over 20,000+ products.
• Developed RESTful APIs and scalable backend services using Spring Boot to design and optimize shopping cart and checkout workflows, reducing checkout drop-off by 20% and ensuring smooth transaction processing.
• Executed comprehensive manual and automated API testing workflows using Postman and Swagger to ensure optimal endpoint reliability and functionality.
• Authored comprehensive unit tests utilizing JUnit and Mockito, and monitored system performance using Dynatrace and Kibana, achieving 85% code coverage.
• Implemented OAuth 2.0 authentication and integrated third-party services to enable secure access control and personalized customer engagement workflows.

B.Tech in Electronics and Communication – KIET Group of Institutions (2019 – 2023)