Rajat Kabra

Associate Software Engineer specializing in secure fintech applications built with Java, Spring Boot, Keycloak, Redis, MongoDB, MySQL, and AWS. Experienced in Identity and Access Management (IAM), OAuth 2.0, OpenID Connect (OIDC), Single Sign-On (SSO), microservices architecture, distributed caching, and multi-tenant SaaS platforms.

Associate Software Engineer at Vivriti Capital Limited (2025-08 – Present)

• Developed and maintained Spring Boot microservices and RESTful APIs powering the Loan Origination System (LOS) and API Gateway, supporting 20+ lending partners and processing 10,000+ API requests daily.
• Implemented Keycloak-based authentication, Microsoft Single Sign-On (SSO), and Role-Based Access Control (RBAC) across multiple enterprise applications, strengthening access governance and reducing manual user management efforts.
• Architected a multi-tenant backend solution using MongoDB, Redis, and MySQL for 20+ lending partners, enabling secure tenant isolation, centralized configuration management, and scalable SaaS deployments.
• Improved platform resilience and stability by implementing Resilience4j Circuit Breakers, optimizing Redis caching, enhancing REST APIs, and strengthening CI/CD deployment reliability through Jenkins-based automation.
• Designed and implemented a 3-tier Redis caching architecture across 5 Spring Boot microservices, reducing redundant cache storage by approximately 70% while ensuring centralized cache configuration management and consistent cache synchronization across microservices.
• Engineered a centralized API Gateway that enforced authentication, authorization, and CORS policies while routing requests across multiple business-critical microservices, enabling secure and reliable platform communication.

Software Developer Intern at Vivriti Capital Limited (2025-02 – 2025-08)

• Strengthened the Loan Origination System (LOS) by designing and implementing role-based access controls in Keycloak, enabling secure permission management and reducing the risk of unauthorized access.
• Integrated Amazon S3 Transfer Acceleration into the document management pipeline, reducing large file upload latency by up to 20% and improving document processing performance.
• Deployed Microsoft Single Sign-On (SSO) via Keycloak, streamlining the authentication process, minimizing login delays, and enhancing the user experience for both internal and external stakeholders.

Bachelor of Technology (B.Tech.) in Computer Science and Engineering with Cloud Computing & Automation – Vellore Institute of Technology (2021-09 – 2025-06)