Subhajit Kar
Junior Software Developer
I am a Backend Developer with 3+ years of experience at Cognizant Technology Solutions. I improved execution time using parallel processing with CompletableFuture. I am currently focused on backend services, database operations, cloud-based workflows, and system integrations.
Skills
Projects
CustomerMetadata
Developed a Spring Boot-based AWS Lambda application for high-volume data processing. Retrieved database records, invoked an external SOAP service, and updated records based on the response. Improved execution time using parallel processing with CompletableFuture.
S3-Based File Processing and Data Load Automation
Developed a Spring Boot-based AWS Lambda application triggered by S3 file upload events. Implemented CSV file processing to read uploaded data and convert records into application objects. Stored processed records in DynamoDB using batch operations for efficient large-volume data handling.
Paccstmt (Broker Payment Processing)
Worked on a Spring Boot-based backend application for insurance policy and broker payment processing. Built a two-stage AWS Lambda workflow using S3 and SQS for file processing and XML generation.
Experience
Cognizant Technology Solutions
10/2022 – Present
Backend development across multiple projects in different domains, working on backend services, database operations, cloud-based workflows, and system integrations, contributing to performance improvements and application support.
Achievements & Awards
Vibe Coding
2025Developed a full-stack Angular and Spring Boot application that generates DDL queries from uploaded ER diagrams using OpenAI GPT API for AI-driven database schema automation.
Get in Touch
Interested in collaboration or just want to say hello? Feel free to reach out!