Open to opportunities

Kamlesh Kumar

@kamleshkumar2

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Lead Principal Engineer specializing in Java microservices and cloud-native systems.

India

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What I'm looking for

I seek a senior engineering role where I can drive microservices and cloud-native architecture, own end-to-end deliveries, mentor teams, and solve large-scale distributed systems challenges in an agile, security-conscious environment.

I am an innovative and results-driven software engineer with 7+ years of experience building full-stack, Java-based microservices and cloud-native solutions. I have led end-to-end SDLC efforts, delivering scalable, secure enterprise applications with a strong focus on performance optimization.

My hands-on expertise spans Java 8–17, Spring Boot, Hibernate/JPA, Apache Kafka, Redis, Docker, Kubernetes, and Google Cloud/AWS services, and I have upgraded and modernized multiple microservices to current Java and Spring versions. I have designed and implemented caching strategies, asynchronous processing with CompletableFuture, and Kafka-based inter-service communication for high-throughput systems.

I take ownership from high-level architecture (HLD/LLD) to implementation — building account, enrichment, validation, messaging and reporting services, designing CSV export and FTP connector plugins, and implementing messaging using SendGrid and Karix. I value secure, compliant data handling, having implemented PII controls and validation mechanisms, and I enjoy solving distributed systems challenges to improve reliability and observability.

Experience

Work history, roles, and key accomplishments

Lead Principal Engineer

JoulesToWatts (Coupang)

Apr 2025 - Oct 2025 (6 months)

Led migration and upgrades of multiple microservices to Spring 6 and Java 17, developed Airflow DAGs for scheduled data persistence, and implemented PII data controls to meet data security compliance for customer and seller insights.

Spring Boot Airflow Apache Kafka Microservices Docker Kubernetes

Senior Software Engineer

Bounteous x Accolite (Morgan Stanley)

Mar 2024 - Mar 2025 (1 year)

Developed account and enrichment microservices for client account creation, implemented business validation services and integrated Kafka-based inter-service communication with mainframe persistence.

Java Spring Boot Apache Kafka Microservices Mainframe Integration REST APIs Persistence

Senior Software Engineer

Healthi (Svasth Life Pvt. Ltd.)

Feb 2022 - Jun 2023 (1 year 4 months)

Led HLD/LLD and implemented domain services, CSV-based ingestion, Redis caching, multi-broker Kafka setup, and a dynamic messaging service using SendGrid and Karix for the cloud-based Flex benefits platform.

Java Spring Boot Redis Apache Kafka Sendgrid Karix Microservices CSV Docker Kubernetes

Software Engineer

Dmart Avenue Supermarts Limited

Jul 2020 - Feb 2022 (1 year 7 months)

Designed and developed multiple microservices for a cloud-based Warehouse Management System, implemented Kafka messaging, distributed Redis caching, asynchronous processing with CompletableFuture, and FTP-based CSV report exports.

Java 8 Spring Boot MongoDB Apache Kafka Redis Google Cloud Kubernetes CompletableFuture Microservices

Software Engineer

Siemens Technology and Services

Jul 2017 - Mar 2020 (2 years 8 months)

Implemented CM functionality for Test Design Studio, deployed applications with Docker, automated deployments with shell scripts, and configured Grafana monitoring for multi-environment visibility.