Gaurav Dubey

Backend engineer with 3+ years of experience building and scaling Java-based distributed systems for high-volume retail and supply chain workflows. Hands-on experience with Spring Boot, Kafka, Cassandra, Redis, and Kubernetes, with a focus on backend reliability, performance, and operational efficiency.

Software Development Engineer 2 - ZopSmart

(2025-04)

• Owned backend improvements on a distributed event-driven platform supporting order fulfillment and inventory workflows, helping it scale to process over 10 million events per day.
• Designed and shipped enhancements to Spring Boot microservices handling around 10 million API calls daily, with Kubernetes-based scaling to support peak traffic and maintain SLA-sensitive workflows.
• Led reliability improvements for high-traffic order fulfillment workflows by designing idempotent processing, retry handling, dead-letter recovery, and circuit breaker safeguards, helping prevent cascading failures under peak traffic on a platform processing over 10M events per day.
• Reduced P95 latency by 25% through thread pool tuning, query and index optimization, and Redis caching in high-traffic paths.
• Improved production observability using Prometheus, Grafana, and Datadog dashboards and alerts, helping reduce incident detection and recovery time.
• Optimized autoscaling and resource allocation for backend workloads, lowering cloud compute overhead while maintaining service stability.
• Owned design and rollout of backend changes for SLA-sensitive fulfillment workflows, working with product and operations teams to deliver reliability and latency improvements in production.

Software Development Engineer 1 - ZopSmart

(2023-08 - 2025-03)

• Drove key parts of a 40M+ record migration from a legacy monolithic system to Cassandra, building validation and correctness checks to achieve zero data loss during the production transition.
• Built and supported Kafka and Storm-based real-time pipelines for retail event processing, sustaining high availability at around 10K TPS.
• Tuned Cassandra consistency levels and compaction settings based on workload patterns to balance latency, durability, and operational efficiency.
• Improved data modeling and partition key design to reduce read bottlenecks and improve query performance across distributed clusters.
• Added BDD-based automated testing for critical workflows, helping reduce data inconsistencies in production workflows.
• Participated in production incident response and root cause analysis for high-severity issues affecting enterprise retail clients.

Software Development Engineer Intern - ZopSmart

(2023-02 - 2023-07)

• Built reusable setup components for Java and Spring Boot services, reducing the effort required to bootstrap new microservices.
• Used JMeter-based load testing to validate REST API stability for traffic up to 5K requests per second.
• Followed TDD practices and wrote unit and integration tests using JUnit and TestNG, improving backend reliability and maintaining over 95% test coverage.

Bachelor of Technology - Computer Science and Engineering - Jaypee University of Engineering and Technology, Guna (2019 - 2023)