Nikhil Jaiswal

App Dev Programmer Analyst 2

Citi Corp Services India Privated Limited•  September 2022 - Present•  Pune, Maharashtra

Architected and developed scalable big data processing pipelines using Hadoop and Spark, efficiently processing over 100 petabytes of data. Designed data pipelines that generate timely alerts for detecting anomalies and market abuse, enhancing Trade Surveillance monitoring effectiveness. Spearheaded the development and maintenance of 10+ surveillance systems, each tailored to identify specific market manipulation activities. Delivered production-ready code with zero user-reported issues, ensuring high reliability and compliance. Collaborated with a team of 8+ data scientists and domain experts to define technical specifications, resulting in enhanced surveillance capabilities and regulatory alignment. Drove enhancements to existing surveillance systems to align with new regulatory requirements, including the incorporation of additional upstream data sources and updating control reports, ensuring comprehensive coverage and accuracy in detecting potential violations and streamlined reporting processes. Improved the robustness by implementing extensive unit and integration tests, achieving over 80% test coverage. Acted as an L3 support engineer and Subject Matter Expert (SME) for over 10+ surveillance scenarios. Diagnosed and resolved complex issues related to surveillance triggers, data integrity, and system performance, ensuring continuous and reliable system operation. Conducted performance analysis of job execution times and created Heatmap visualizations to understand cluster utilization patterns. Optimized job scheduling, balancing the load based on upstream dependencies, job priorities, and cluster capacity, leading to improved system performance and efficiency by 30%.

Assistant System Engineer

Tata consultancy Services•  June 2021 - September 2022•  Bengaluru, Karnataka

Developed 50+ enhancements and unit tests to deliver stories as per defined compliance requirements. Optimized Struts2 Based application and added various new functionalities to enhance user experience. Developed the highly scalable and maintainable code for Spring Boot application. Key Technologies: Java, Spring Boot, Struts2, React, Python, JavaScript, JUnit.