Vivek Kumar

Backend engineer with over 10 years of experience in designing and implementing scalable systems in telecom, e-commerce, airline, and banking sectors. Specializes in microservices architecture, cloud-native solutions, and DevOps practices. Demonstrated success in modernizing legacy systems, enhancing team performance, and increasing system reliability and delivery efficiency.

Juno: Cloud-Ready Multi-Tenant Backend for Optical E-Commerce

Duration: 04/01/24 - 01/05/25

Tech Stack: Java, Spring Boot, Hibernate, MongoDb, Kafka, Redis, AWS EKS, Docker, Kubernetes, Buildpiper

Spearheaded the transformation of a single-tenant backend architecture into a scalable, multi-client platform, accelerating client onboarding and enhancing system reusability, partnered closely with product and engineering teams to assess the existing architecture and refactor several microservices for full compatibility with multi-client operations, designed and optimized a critical bridge service to facilitate seamless communication among client-specific services, ensuring backward compatibility and minimizing integration overhead, enhanced code quality by implementing comprehensive JUnit test suites using Mockito, resulting in a 40% increase in unit test coverage and a 70% reduction in SonarQube-reported issues, contributed significantly to requirement gathering and technical planning efforts, supporting efficient execution and fostering smooth cross-functional collaboration 

John Jacobs:  Custom CMS-Driven E-Commerce Solution

Duration: 02/01/22 - 04/01/24

Tech Stack: Java, Spring Boot, Hibernate, Shopify, Redis, Docker, AWS EKS, Kubernetes, Buildpiper

Directed the complete backend implementation and advanced customisation of Shopify to support tailored cart and payment functionalities, contributing to a 30% improvement in checkout conversion rates., Architected and introduced infrastructure enhancements using Docker and Kubernetes, reducing infrastructure-related downtime by over 60% and enabling seamless horizontal scalability during peak traffic. Established and enforced comprehensive security protocols, effectively mitigating system vulnerabilities and ensuring 100% adherence to industry security standards.Collaborated with business stakeholders to gather, refine and translate requirements into scalable technical solutions, leading to a 25% acceleration in feature delivery timelines., Oversaw a cross-functional team comprising frontend, backend, and mobile developers, providing strategic direction, technical mentorship, and ensuring on-time, high-quality delivery.

• Innovation Award, Boosted system eciency by 30% via architectural optimization at Orange
• Spotlight Award, Delivered critical Java components under tight deadlines with zero defects
• Excellence in Technology Award, Consistently shipped high-quality backend services at scale
• Team Performer of the Month, Recognized at Nagarro for key contributions to Java platform delivery