Harsh Devavanshi

About Harsh Devavanshi

Java Full Stack Engineer with 5+ years of experience building scalable, high-performance product systems across backend and frontend layers.I specialize in the modern Java ecosystem (Java 17+, Spring Boot 3.x, Microservices) with strong hands-on ownership of frontend features using React.js and TypeScript. My work focuses on performance optimization, system design, and building resilient architectures that scale reliably in real-world production environments.Recent Impact (Product Environment – AutoZone):• Drove a 4x API performance improvement (2s → 500ms) by redesigning services using Elasticsearch and Redis.• Led end-to-end frontend ownership for a PO input module in TypeScript, increasing sales conversion from 15% to 42%.• Contributed to 60% of a zero-downtime GCP migration, collaborating across backend, DevOps, and platform teams.I enjoy working in product-driven teams where engineers have deep ownership, strong engineering standards, and the opportunity to solve complex, long-term problems at scale.Core Stack: Java 17, Spring Boot 3.x, Microservices, REST APIs, Kafka, MySQL, React.js, TypeScript, Docker, Kubernetes, AWS, GCP, CI/CD

Experience

1. Senior Associate Engineer Java Full Stack Developer

   Publicis Groupe

   Oct 2025 — Present · Noida, IN

   Conducting technical interviews and coding evaluations for backend and full-stack roles, assessing Java, Spring Boot,REST APIs, and problem-solving fundamentals.• Mentoring junior engineers through structured technical sessions, code reviews, and mock client interviews to improveproject readiness and delivery quality.• Supporting internal capability building and delivery readiness through architectural reviews, interview panels,mentoring, and onboarding discussions for client-facing engagements.

Education

• Delhi University

  Bachelor's degree, Electronics