Building Scalable Microservices with Micronaut, Kotlin, and AWS DynamoDB: A Comprehensive Architecture Study

Year : 2025 | Volume : 12 | Issue : 02 | Page : 40 57
    By

    Vamsi Thatikonda,

  1. Senior Software Developer, Department of Computer Engineering, Snoqualmie, Washington, India

Abstract

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The evolution of enterprise software has trended steadily toward microservice architectures due to their inherent scalability and resilience advantages over monolithic systems. This research explores a comprehensive implementation approach using Micronaut, an innovative JVM-based framework specifically designed for resource-efficient microservices. The study combines Micronaut with Kotlin programming language and leverages AWS DynamoDB as a scalable NoSQL persistence layer, with Apache Kafka providing event-driven communication capabilities. We explore the critical role of OAuth2 authentication for securing these distributed services and implement standardized CRUD operations following best practice design patterns. Our methodology employs systematic benchmarking to evaluate performance characteristics across varied deployment scenarios, integrating circuit breaker patterns for service resilience and analyzing horizontal scaling capabilities. Experimental results demonstrate significant performance advantages including an 80% reduction in startup time and a 40% decrease in memory footprint compared to traditional Spring-based implementations. The findings indicate that the Micronaut-Kotlin-DynamoDB architecture delivers exceptional response metrics, with p95 latencies of 25 ms under load and transaction processing capabilities of 5000 requests per second on modest infrastructure. The study identifies key challenges in distributed transaction management, eventual consistency models, and developer onboarding processes. We conclude with strategic recommendations for enterprise adoption alongside an exploration of emerging enhancement opportunities including GraphQL integration, CQRS implementation, and AI-augmented service optimization. This research provides practical architectural guidance for modern distributed systems that demand both high performance and cloud-native scalability while minimizing operational complexity and resource utilization.

Keywords: Micronaut, Kotlin, DynamoDB, Kafka, microservices, REST API, OAuth2, event-driven architecture, scalability, cloud-native

[This article belongs to Journal of Mobile Computing, Communications & Mobile Networks ]

How to cite this article:
Vamsi Thatikonda. Building Scalable Microservices with Micronaut, Kotlin, and AWS DynamoDB: A Comprehensive Architecture Study. Journal of Mobile Computing, Communications & Mobile Networks. 2025; 12(02):40-57.
How to cite this URL:
Vamsi Thatikonda. Building Scalable Microservices with Micronaut, Kotlin, and AWS DynamoDB: A Comprehensive Architecture Study. Journal of Mobile Computing, Communications & Mobile Networks. 2025; 12(02):40-57. Available from: https://journals.stmjournals.com/jomccmn/article=2025/view=0


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Regular Issue Subscription Original Research
Volume 12
Issue 02
Received 21/04/2025
Accepted 12/05/2025
Published 18/06/2025
Publication Time 58 Days
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