Jun 2025 – Jun 2025 · 0 mo · Bengaluru, Karnataka, India · On-site

Jul 2024 – May 2025 · 10 mos · Gurugram, Haryana, India · On-site

• Worked on Spring Boot microservices (4 services) for GCP migration, modernizing Java services and APIs in a merchant insights platform for American Express.
• Owned and led the development of the ETL microservice, managing Spark and MapReduce pipelines for data processing and transformation.
• Developed a Java singleton class with complete encryption and decryption logic for PII columns, integrated into Spark and MapReduce jobs.
• Led critical upgrades to legacy Scala/Java Spark applications for GCP compatibility — updating dependencies, resolving configuration mismatches, and optimizing Spark sessions for GCS-based I/O.
• Migrated 8 on-prem MapReduce jobs to Google Cloud Dataproc, replacing deprecated custom input formats with native Hadoop ParquetInputFormat, and enabling GCS-based file handling.
• Migrated 22 HQL scripts from Hive-HBase ETL to a BigQuery-to-BigTable pipeline.
• Created and maintained Airflow DAGs (daily, weekly, monthly) to schedule Spark, BQ–Bigtable, and MapReduce jobs for various SLAs.

Feb 2024 – Jul 2024 · 5 mos · Remote

• Contributed to software engineering benchmarking campaigns for major AI companies, evaluating model performance on complex GitHub issues and technical problems.
• Developed and maintained a Django-based chat application to test responses of the AI model, featuring real-time messaging, user authentication, and automated response validation.
• Designed test automation frameworks with Playwright and Pytest for structured data collection and model benchmarking.

Sep 2023 – Oct 2023 · 1 mo

Jun 2023 – Jul 2023 · 1 mo · Remote

• Developed a sophisticated pair trading model with a hedging strategy and tested it under real market conditions.
• Efficiently captured live data streams from multiple tickers through the IB TWS API using multi-threading techniques, enabling concurrent analysis of multiple pairs.
• Conducted comprehensive backtesting using large historical tick-by-tick data to assess strategy performance.
• Technologies used: Python, Jupyter Notebook, IB Trader Workstation, Rest APIs.

Mar 2023 – May 2023 · 2 mos · Tokyo, Japan · Remote

• Collaborated with a team of 4 members to manage and enhance an app based in Japan, serving 500+ users.
• Resolved various issues related to backend APIs for therapist search and phone number updates using PHP.
• Optimized authentication process by using Firebase for Email verification resulting in a 30% reduction in response time.
• Deployed backend code to AWS EC2 and frontend code to Netlify, ensuring a smooth production environment.
• Created comprehensive documentation for code updates and app launches on the Play Store and App Store using Monaca
• Framework.
• Technologies used: Docker, Vue.JS, MySQL, Firebase, PHP.

Oct 2021 – Mar 2022 · 5 mos · Patna, Bihar, India