Headline

Senior Software Engineer @ Walmart | Java | Go | Microservices | Hibernate | Kafka | Docker | Kubernetes | Cloud Technology

About

I am an innovative and passionate Senior Backend Engineer with 8.2+ years of experience designing and building scalable distributed systems and cloud-native platforms. Expertise in Java, Go, Microservices, System Design, high-availability architectures, and large-scale backend platforms. Specializing in large-scale distributed systems handling millions of transactions per day. Strong foundation in Data Structures, Algorithms, and system design for highly scalable and resilient systems. ♦ Languages: Java, Golang, C, JavaScript, HTML ♦ Backend: Spring Boot, Hibernate, Microservices, REST, gRPC, GraphQL, SOAP, WebSockets, Apache Camel ♦ Cloud & Containers: AWS, Azure, Google Cloud Platform (GCP), Docker, Kubernetes ♦ Databases & Storage: MySQL, Informix, Google Spanner, Azure Cosmos DB, Hive, Redis ♦ Messaging & Data Processing: Kafka, RabbitMQ, Apache Airflow ♦ DevOps & Infrastructure: Jenkins, CI/CD, Liquibase, Linux, Ubuntu, Git ♦ Observability & Monitoring: Prometheus, Grafana, ElasticSearch, Kibana, Splunk, Dynatrace ♦ Testing, Security & Caching: JUnit, Mockito, Karate, WireMock, JMeter, Mutation Testing (PITest), OAuth 2.0, SAML, Apache Caffeine Cache, ShedLock ♦ AI/GenAI Platforms: LLMs, Retrieval-Augmented Generation (RAG), AI Agents, Multi-Agent Orchestration Frameworks, Agentic Workflows, Prompt Engineering, Vector Databases, Shared Memory Architectures

Location

Bengaluru

AI stack

codex

cursor

opencode

Work experience

Senior Software Engineer at Walmart Global Tech India, Jul 2025 - Present · 1 yr 2 mos, Bengaluru, • Designed and built a cloud-native distributed workflow engine for 5,500+ pharmacies, centralizing prescription processing. • Architected an event-driven microservices platform using gRPC and Kafka, handling over 55M workflow transitions daily. • Implemented state-machine-based orchestration with Google Spanner, ensuring strong consistency and high availability.

Software Engineer 3 at Walmart Global Tech India, Mar 2022 - Jul 2025 · 3 yrs 5 mos, Bengaluru, I spearheaded the modernization of pharmacy infrastructure and integration platforms, achieving significant operational improvements. • Migrated 200+ legacy applications to Go, improving reliability and efficiency across Walmart's pharmacy stores. • Developed a hybrid integration architecture that reduced downstream service calls by 30%, enhancing overall system performance. • Created a secure credential management daemon, Mantis, optimizing backend utility execution times by 70%.

Associate Technology L2 at Publicis Sapient, Jan 2021 - Mar 2022 · 1 yr 3 mos, Bengaluru, • Modernized legacy services by migrating to a unified common services model, enhancing scalability by 40%. • Leveraged CA API Gateway, REST APIs, and Oracle Coherence in a digital transformation initiative impacting over 20 services. • Implemented API security and management with Zuul API Gateway, ensuring robust authentication and authorization across 15+ microservices.

Technology Associate at Publicis Sapient, Jan 2021 - Mar 2022 · 1 yr 3 mos

Programming Analyst at Cognizant, May 2018 - Dec 2020 · 2 yrs 8 mos, Kolkata, West Bengal, India, • Developed a B2B call center application for effective inventory reservation and information management. • Enabled sales teams to create and monitor inventory, user, admin, and reservation transactions. • Contributed to microservices database design, analyzing functional requirements to build scalable schemas.

Education

Engineer's degree, Electronics and Instrumentation Engeenering, haldia institute of technology

B-Tech, Electronics and Instrumentation Engineering, West Bengal University of Technology, Kolkata