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Mallesh Ashamoni

@malleshashamoni

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Senior Java backend engineer building resilient event-driven, cloud-native microservices.

United States

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What I'm looking for

I’m looking for a role where I can architect and modernize event-driven Java/Spring microservices on cloud infrastructure, focusing on resilience, observability, secure APIs, and production-grade delivery (CI/CD, testing, performance).

I’m a Senior Java / Backend Engineer with 7+ years of experience designing, modernizing, and operating high-throughput, event-driven, cloud-native platforms across retail, finance, and healthcare. I specialize in Java 17/21, Spring Boot 3.x, reactive systems (WebFlux), and distributed messaging with Apache Kafka (DLQ, retries, replay).

Recently, I architected a greenfield, event-driven promotional signage platform for 170+ club locations, processing high-volume events with non-blocking I/O and Kafka-driven orchestration. I’ve also modernized legacy systems at enterprise scale (Java 8→17, Spring Boot 2.7→3.x), improving deployment times by ~40%, and in healthcare work I reduced database response times by up to 70% while building secure, compliant APIs and batch + messaging pipelines.

Experience

Work history, roles, and key accomplishments

Current

Senior Java Engineer

Current

Walmart Global Tech

May 2025 - Present (1 year 2 months)

Architect and contribute to a greenfield, event-driven promotional signage platform supporting 170+ club locations and real-time label printing at enterprise scale. Build reactive microservices with Kafka-based orchestration and add observability, CI/CD, and resilient DLQ/retry handling.

Java 21+Apache Kafka Cassandra Docker Kubernetes CI CD Observability Kafka DLQ And Retries

Senior Java Developer

Goldman Sachs

Sep 2024 - Apr 2025 (7 months)

Led modernization of an enterprise application stack by upgrading legacy Java and Spring versions and refactoring code for maintainability. Built secure Spring Boot microservices with JWT/Spring Security and deployed containerized services to AWS using CI/CD automation.

Spring Boot Spring Security Microservices JWT AWS ECS AWS RDS AWS DynamoDB AWS S3 AWS Lambda Docker CI CD Junit Mockito CI CD Pipelines

Software Developer

Conduent

Oct 2022 - Sep 2024 (1 year 11 months)

Develop and maintain healthcare eligibility and claims processing platforms within a large-scale Medicaid MMIS. Build Spring Boot microservices and secure REST APIs, optimize performance with caching, and implement integrations and asynchronous messaging.

Java 8 Spring Boot Spring Security OAUTH2 JWT REST APIs Redis Apache Camel Apache Kafka PostgreSQL AWS Azure DevOps Azure Blob Storage Azure SQL

Developer / Analyst

EninTech / Kanshe Infotech / LongPing India

Aug 2014 - Dec 2020 (6 years 4 months)

Contributed as a Java developer/analyst to internal tools and backend components for operational and reporting needs. Supported agriculture/operations workflows by collecting and analyzing field trial data and producing SQL- and Excel-based reports.