Saurabh Kumar Rai

Nth Rewards

Spring Boot, Postgres, Redis

• Developed APIs for RuPay transaction details, enabling loyalty points accumulation.
• Managed application servers, ensuring seamless installations and maintenance.
• Updated existing source code according to changing business needs and requirements.
• Contributed to the migration of Nth Rewards from Azure to the NPCI data center, ensuring a smooth transition with minimal downtime.

Middleware

Microservices, CQRS, Spring Boot+ Security, Postgres, MongoDB, Redis, Nginx, Docker

• Built scalable middleware for third-party integrations with Nth Rewards using Java Spring Boot, PostgreSQL, Redis, and CQRS, handling 200-600 TPS during peak seasons.
• Integrated Twidpay with Nth Rewards via middleware, enabling customers to redeem loyalty points directly on merchant apps.
• Connected Pine Labs APIs to Nth Rewards via middleware for real-time voucher generation based on customer-selected denominations.
• Integrated Customer Capital with SSO login for seamless access to flight and hotel booking options.

Middleware Matrix

ReactJS, Docker

• Created a React.js application to manage middleware transactions, partners, and users.
• Implemented multi-factor authentication (MFA) for secure two-step login authentication.

RSAS (RuPay Scan and Score)

Spring Boot, Postgres, Redis

• Integrated RSAS with Nth Rewards for voucher distribution and rewards processing using Spring Boot, Redis, and PostgreSQL.
• Designed RESTful APIs for data retrieval, improving system performance and aligning with operational goals.

GNSS (Global Navigation Satellite System)

Spring Boot, Kafka

• Developed live vehicle location APIs with Kafka for real-time location segregation.
• Streamed location data to a frontend map using WebSocket APIs.

Achievements

• Secured and optimized server-side logic with Spring Security.
• Improved performance with Redis caching and microservices architecture.
• Ensured code quality by adhering to checkmark standards.
• Deployed projects using Docker and set up server clusters with Docker Swarm.

• Worked as a Software Intern, gaining experience in HTML, CSS, Java, and JavaScript.
• Contributed to the development team by adding features to banking APIs, while honing collaboration and corporate workplace skills.
• Worked closely with systems analysts, engineers and programmers to understand limitations, develop capabilities and resolve software problems.