Rajesh Paranjape

Senior Software Developer with 4.3+ years of experience designing, building, and shipping enterprise-grade applications across Banking, Aviation, Utility, and Automotive domains. Proven track record of end-to-end ownership — from requirements analysis and architecture design to production support and performance optimization. Deep expertise in Spring Boot, event-driven systems (Apache Kafka), and cloud-native deployment on AWS.

Known for delivering high-performance, secure, and scalable solutions while working directly with business stakeholders and banking clients to translate complex requirements into shipped features. Strong advocate of clean code, SOLID principles, and Agile practices.

Senior Software Developer at Hover Technologies (2024-11 – Present)

Digital Banking & Fintech + Payment Aggregation

• Designed and delivered 20+ REST APIs for loan origination, eligibility, approval, disbursement, and delinquency tracking using Spring Boot for a multi-tenant microfinance platform serving multiple bank clients.
• Architected the financial computation engine by migrating all monetary calculations to BigDecimal, ensuring 100% accuracy for EMI calculations across all active loan accounts.
• Optimized database performance by designing a robust PostgreSQL schema with strategic indexing, reducing query response times by 40% and enabling faster NPA detection and reporting.
• Led the transition to an event-driven microservices architecture using Apache Kafka, decoupling core services to enable zero-downtime independent deployments.
• Built a mandate-service integrating with NIBSS for direct debit registration and implemented a role-based access control (RBAC) system with multi-tenant data isolation using Spring Security and JWT.
• Integrated multiple payment gateways including M-Pesa Daraja API, Airtel Money, and two Kenyan banks, building reusable adapters with robust error handling and retry mechanisms.
• Enhanced reconciliation and reporting by optimizing transaction queries and implementing an idempotency mechanism to eliminate duplicate payment processing, significantly reducing merchant support tickets.
• Developed a resilient webhook engine with exponential backoff and dead-letter queue (DLQ) handling, ensuring reliable event delivery to external systems.
• Implemented CI/CD pipelines with Jenkins and Docker, automating build, test, and deployment processes for faster and more reliable releases.
• Wrote comprehensive integration tests using Testcontainers, ensuring system reliability and preventing regression bugs in production.

Senior Software Engineer at Marlabs Innovations Pvt. Ltd. (2023-05 – 2023-11)

Aviation Operations Platform

• Spearheaded the design and development of four Spring Boot microservices — Crew Management, Flight Scheduling, Aircraft Maintenance Tracking, and Gantt Chart Visualization — delivering a complete operations management solution for airline clients.
• Designed and optimized database schemas for crew_assignments, flight_legs, and maintenance_records, ensuring data integrity and high performance for complex operational queries.
• Engineered the Gantt chart visualization with optimized backend queries and Redis caching, delivering real-time scheduling views to airline operations teams for improved decision-making.
• Defined Kafka event contracts for inter-service communication, ensuring reliable and idempotent message processing across all microservices.
• Owned the full development lifecycle from requirement gathering, design, and implementation to production deployment and post-launch support.
• Led code reviews ensuring adherence to SOLID principles, clean code practices, and high-test coverage; mentored junior developers on best practices.
• Collaborated closely with airline operations teams to gather feedback, resolve production issues under tight SLAs, and continuously improve the platform.

Java Engineer (Contract) at Randstad India Pvt. Ltd. (2022-11 – 2023-01)

• Onboarded as a contract Software Engineer for a client deployment; completed technical environment setup, codebase familiarization, and knowledge transfer aligned with enterprise Java development standards.
• Collaborated with internal delivery teams on project-readiness activities before the engagement concluded due to a shift in client resourcing plans.

Solution Developer at Tata Technologies (2021-01 – 2022-07)

Automotive R&D & Engineering Platform

• Owned end-to-end delivery of four critical modules — Work Order Management, Test Cell Tracking, Reporting Dashboard, and Support — using Spring MVC and JSP, from requirement analysis to UAT sign-off.
• Optimized reporting performance by re-architecting slow PL/SQL queries with efficient JOINs and composite indexes, cutting report generation time by 50% on multi-million-row Oracle tables.
• Designed the test-scheduling workflow including work order creation rules, test cell assignment logic, state transitions, and automated engineer notifications, streamlining R&D operations.
• Resolved production incidents through thorough log analysis, root-cause identification, and implementing permanent fixes; documented all issues for future reference.
• Collaborated with cross-functional teams in Agile/Scrum ceremonies, ensuring timely delivery of features and continuous improvement of the platform.

Master of Engineering in Computer Science – Smt. Kashibai Navale College of Engineering