Yashveer Singh

I’m a backend software engineer with 2+ years of experience at RapiPay Fintech, where I progressed from an intern to a Software Engineer. I build backend services, microservices, and REST APIs using Java, Spring Boot, Node.js, and Python, with experience in PostgreSQL, MongoDB, Redis, Kafka, and RabbitMQ.

At RapiPay, I’ve worked on payment processing, bank reconciliation, credit systems, and internal tools. I built a configurable reconciliation service that reduced bank integration time by 70%, and developed Redis-based idempotency for payment webhooks to eliminate duplicate transactions. I also contributed to a merchant and agent management portal used by more than 1,000 people, and helped maintain high availability across production services. More recently, I built an AI-powered Loan MIS Assistant that lets users query loan data in plain English.

I enjoy designing reliable systems, solving backend and distributed-systems challenges, and taking features from design through production. I’m also interested in applied AI, particularly retrieval-augmented generation and agentic workflows. Outside of work, I’ve solved 400+ LeetCode problems and mentored two interns in microservices and design patterns. I’m looking for a Software Engineer role where I can keep building useful, dependable products and grow as an engineer.