Jun 2023 – Nov 2025 · 2 yrs 5 mos · On-site

• Contributed to building a Java backend application by implementing the persistence layer using DynamoDB and S3, leveraging Java Streams for efficient data processing, and designing in-memory LRU caches to optimize read performance.
• Architected and developed RESTful microservices using Java and Flask, implementing JWT authentication to secure internal service communication and enable role-based access control across distributed systems
• Developed an equity market data ingestion and ETL workflow using AWS Glue, and upgraded existing surveillance models to handle equity audit-trail data, contributing to the platform’s multi-asset expansion.
• Optimized model execution using Java parallel streams, reducing audit trail processing time by 20%.
• Developed the Spark jobs to convert third-party results, which helped in the addition of 40+ configurable models to the system. Created an AWS Lambda function triggered by file uploads to initiate the Spark job with required inputs.
• Facilitated live L3 production support, handling pager-duty and ticket escalations. Resolved 90% of
• high-priority issues promptly and mitigated critical incidents.

Jan 2023 – May 2023 · 4 mos · On-site

• Migrated legacy APIs from H2O to Jersey (JAX-RS), aligning with modern JavaEE REST conventions.
• Implemented an AWS SNS–based ingestion monitoring system that enabled 2× faster failure escalations and significantly reduced customer-reported data unavailability incidents.
• Followed test-driven development, writing unit tests using the JUnit and Mockito frameworks, resulting in 90% test coverage and improved code reliability.

Jun 2022 – Jul 2022 · 1 mo · remote · Remote

• Extracted and processed Twitter data, performing data cleaning, feature engineering, and 𝐍𝐋𝐏-based 𝐬𝐞𝐧𝐭𝐢𝐦𝐞𝐧𝐭 𝐚𝐧𝐚𝐥𝐲𝐬𝐢𝐬 to prepare the dataset for predictive modeling.
• Trained and fine-tuned a 𝐁𝐄𝐑𝐓-based deep-learning model on the dataset, achieving an accuracy of 84% on the sentiment classification task.

Jan 2022 – Apr 2022 · 3 mos · India

Jul 2021 – Aug 2021 · 1 mo · India