Jan 2023 – Aug 2023 · 7 mos

• Developed a high-performance ETL tool that processes real-time streams from Kafka, integrating data from over 10 upstream sources and generating regulatory reports for over 15 million equity and options orders.
• Automated the validation, compression, and submission of these reports to regulatory agencies such as FINRA for trade compliance.
• Designed custom batch processors for various tasks including file reading, data persistence, real-time data storage, record retrieval, and data filtering and transformation.
• Utilized Autosys to schedule batch processors, and automated log analysis and notification processes for successful and failed operations.

Jan 2021 – Dec 2022 · 1 yr 11 mos

• Led the migration of legacy applications to microservices architecture, deployed 40+ RESTful APIs with OAuth 2.0 authentication and JWT-based authorization, optimizing performance and server responses by 40%.
• Transitioned order entry applications to AWS cloud, using Docker and Kubernetes cluster(EKS) for automated deployment and scaling.
• Led a team of 5 to build an order management platform using Java, and Spring Boot, processing concurrent transactions at 20k TPS.

Oct 2019 – Dec 2020 · 1 yr 2 mos

• Integrated E-Trade order reporting, fractional order reporting, TRACE, and TRF reporting into the Regulatory Reporting application.
• Addressed critical production issues and delivered timely solutions to prevent any downtime.
• Took the initiative to implement parallel processing for batch processors, reducing overall processing time by 60%.
• Built a full-stack notification system to receive real-time feedback on regulatory reports, reducing reject resolution time by 80%.

Apr 2017 – Oct 2019 · 2 yrs 6 mos · On-site

• Developed and tested feature enhancements for CLIM (Cluster I/O Module), a TCP/IP subsystem for mission-critical NON-STOP servers.
• Led a team of 3 members to migrate physical infrastructure to private cloud using Open Stack and implemented virtualization features.
• Collaborated closely with cross-functional teams, clients, and key stakeholders to gain a deep understanding of project requirements, addressed challenges on time, and established project milestones, leading to a significant 25% reduction in project delivery timelines.
• Wrote comprehensive test plans, and unit and integration tests using Mockito and Junit, automated and integrated test suites into the framework.

Jan 2016 – Mar 2017 · 1 yr 2 mos · On-site

• Engineered failover functionality for mission-critical servers using load balancers and data replication, to automatically transfer established TCP connections to backup servers during failure in primary servers, ensuring robust fault tolerance and high availability
• Implemented Test-Driven Development (TDD) for backend services, using JUnit and Mockito to write unit tests, fostering an error-minimized development environment.
• Built a test automation framework using Python and React, integrated pre-existing test suites, reducing testing workload by 70%.

Aug 2015 – Dec 2015 · 4 mos · Bangalore · On-site

• Created admin features for Online Sales Management and automated admin-related operations simplifying their day-to-day activities.
• Optimized batch processing by 60% through table partitioning, database caching, and multithreading in backend services.

Jun 2014 – Aug 2014 · 2 mos · Kolkata, West Bengal, India · On-site

• • Produced an in-house visualization dashboard to show the performance of different projects through bar charts and statistical data through pie charts, analyze past trends, and make future predictions.