Rajesh Kumar

Core Banking Modules: Streamlined and optimized mission-critical adapter integrations between OBDX(Oracle Banking Digital Experience) and UBS(Universal Banking Solutions), reducing data synchronization latency and ensuring 100% data integrity.
Devops: Worked in DevOps team to automate the testing, built server jobs and utilities used in Continuous Integration Pipelines to enhance software delivery velocity.

Core Banking Modules: Developed user management modules, including channel access, registration and login flow, audit logging of non-financial transactions and authorization of services for core banking system supporting millions of core banking users.
Wallet Integration: Designed and implemented wallet features for new and existing banking users which is a high-value add-on feature, resulting in a measurable increase in the product sale. [Public Doc]

QSparc Integration: Core contributor to the DMRC integration, supporting the National Common Mobility Card initiative for unified transit and retail payments such as Metro, Bus, Toll, Parking facilitating a seamless "One Card" experience for millions of commuters which can handle high-concurrency (~10K TPS) transaction bursts during peak transit hours. Wiki : National Common Mobility Card
• Payment Switch Integration: Integrated the 'HDFC' low-latency switching layer capable of processing thousands of transactions per second (TPS) with minimal overhead between Paytm and NPCI Infrastructure, directly increased transaction success rates for online and POS terminals by 27%.

• Retail as a Service (RaaS): Contributed to build a multi-tenant platform providing end-to-end tech solutions for retail planning, purchase orders, and supply chain management.
• Seller Management: Developed high-throughput solutions for warehouse inwarding and product listing, significantly reducing latency in e-commerce inventory updates.

• OCI Messaging & Announcements: Engineered the OCI Announcements Service, enabling high-throughput notifications (~1M recipients per event) to Oracle Cloud customers via OCI Email delivery.
• Feature Development: Built a 'Template Management System' allowing partner teams to manage notification templates with custom permissions and approval workflows. It also helps to reduce the production deployment time by 90% and cut the "go-live" SLA from 4 weeks to nearly real-time. Also cut p99 latency from 3000ms to ~200ms, significantly improving API responsiveness.
• System Reliability: Managed complex user subscriptions, preferences, and multi-timezone/locale announcement statuses for console and email banners.
• Managed on-call rotations for 5+ Tier-1 microservices, Led incident management efforts using Grafana and telemetry tools, authored runbooks, and contributed to system reliability improvements through chaos engineering experiments.
• Leveraged AI-powered code assistance tools (Oracle Code Assist) to improve development efficiency by 20% and code quality by 10%, gaining exposure to AI-driven development workflows and Large Language Models.