Vibhor Rajput

About Vibhor Rajput

I am a Senior Software Engineer with 4 years of experience, most recently at OfBusiness (Unicorn) with a Master’s from BITS Pilani. Over the past years, I have evolved from building custom web crawlers to architecting distributed backend systems that drive over $150M+ in annual GMV.I specialize in the Java Ecosystem and System Design, with a focus on high-stakes infrastructure modernization and building \"0-to-1\" products for enterprise scale. Key Engineering Milestones: Strategic Tech Modernization: I recently spearheaded a mission-critical migration of our core platform from Java 8 to Java 21 and Spring Boot 3. This wasn\'t just a version upgrade; I re-architected the entire ElasticSearch layer to handle breaking changes with zero downtime, paving the way for AI-driven Vector/Semantic Search. 0-to-1 Product Architecture: I designed the backend pipeline for Nexizo.ai from scratch. The system ingests and processes tender data for 500+ enterprise clients, leveraging MongoDB for flexible storage and Hibernate for robust data handling. System Design: I engineered a \"Unified Communication Gateway\"—a stateless microservice that decoupled notification logic from business domains by unifying AWS SNS, Google SDK, and WhatsApp APIs into a single fault-tolerant system. Operational Efficiency: Believing that engineering should solve internal bottlenecks, I built a \"Low-Code Output Formatter\" engine. This tool reduced client onboarding time by 90% by allowing non-tech teams to configure custom reporting formats dynamically. Tech Stack: Java 21, Spring Boot 3, ElasticSearch, MongoDB, PostgreSQL, Hibernate, AWS (S3, SNS), Kafka, Redis, Docker.Open to discussing complex backend challenges and system architecture.

Experience

1. Senior Software Engineer

   Gyan

   Feb 2026 — Present

   Building and scaling an alternative architecture to traditional LLMs

Education

• Birla Institute of Technology and Science, Pilani

  Master's degree, Computer Science

  2019 — 2021