Rajenthar
Jeganathan

Japan's largest internet company and largest e-commerce platform in Japan.

• ▪Leveraged AI tools professionally for code generation, optimization, and accelerated feature development to increase productivity
• ▪Developed and maintained web applications using Java, Spring, and MySQL with high availability requirements
• ▪Built internal APIs and batch applications leveraging Spring Boot, Scala, Hive, MongoDB, and MySQL for large-scale data processing
• ▪Developed Spring Batch jobs for large-scale data processing and transformation across enterprise systems
• ▪Deployed and scheduled batch jobs using Azkaban for efficient pipeline management handling millions of transactions
• ▪Created automation scripts and support tools using Shell and Python to streamline development and operations
• ▪Enhanced code quality by integrating SonarQube and performed performance testing with Taurus for production-grade systems
• ▪Designed and managed database schemas, ensuring data integrity and operational efficiency for high-traffic platforms
• ▪Handled live issue resolution, ensuring consistent application stability and uptime across services

High-performance computing platform specializing in financial risk management solutions.

• ▪Developed and maintained modern applications using Java, Spring Boot, and MySQL for production financial systems
• ▪Designed and implemented frontend features with React, Ag-Grid, Apex-charts, Material-UI, and Redux for complex data visualization
• ▪Integrated caching solutions with Redis and implemented message passing via Kafka for real-time data processing
• ▪Improved and maintained code quality through SonarQube integration and continuous improvement practices
• ▪Conducted requirements gathering, POC development, technical feasibility analysis, and performance impact assessments
• ▪Provided live issue resolution to support application stability and production environment reliability

Leading provider of advanced technology solutions for the global travel and aviation industry.

• ▪Developed modern applications using Java, Spring Boot, Protobuf, ANTLR, and PostgreSQL for aviation systems
• ▪Contributed to frontend development with React and Redux for complex domain-specific applications
• ▪Implemented APIs and business logic, ensuring high JUnit test coverage and maintaining code quality through SonarQube
• ▪Utilized Jira for sprint management and Bitbucket for version control in an Agile environment

Personal high-frequency trading system with live execution across multiple exchanges.

• ▪Built live trading system with <10ms signal-to-order latency (Binance, IBKR, Alpaca)
• ▪Real-time market microstructure analysis (OBI, VPIN, Hurst exponent indicators)
• ▪Walk-forward backtesting framework with XGBoost machine learning signals
• ▪Multi-leg position management and portfolio rebalancing