prakash Jaiswal

PJ

Open to opportunities

prakash Jaiswal

@prakashjaiswal1

I build scalable backend microservices and high-performance APIs using Java and Spring Boot.

What I'm looking for

I'm looking to build scalable, reliable backend systems where I can apply Java, Spring Boot, microservices, Kafka, AWS, and cloud-native delivery practices to solve high-impact performance and reliability challenges.

I've built and modernized high-performance backend systems at Lumen Technologies, Justdial, and ExpansionJS Technologies. My work spans scalable microservices, REST APIs, event-driven processing, and production cloud deployments.

At Lumen Technologies, I led a notification-system migration from a monolith to microservices and managed deployments with Docker and Kubernetes. I upgraded enterprise applications from Java 17 to Java 21/25 using OpenRewrite and Virtual Threads, improving throughput by 35–40%, while building REST APIs handling 10k+ requests and reducing response time by 25%.

At Justdial, I built secure Spring Boot microservices with JWT authentication and RBAC for 10k+ active B2B users. I also implemented Apache Kafka for asynchronous processing, developed Node.js services for e-commerce tracking, and improved data accuracy by 35%.

Earlier, I built Node.js APIs and Angular dashboards for real-time inventory management at ExpansionJS. I enjoy improving reliability, performance, observability, and delivery through AWS, Docker, Kubernetes, GitHub Actions, Grafana, Kibana, and OpenAPI documentation.

Experience

Work history, roles, and key accomplishments

LT

Current

Software Development Consultant I

Current

Lumen Technologies

Apr 2024 - Present (2 years 4 months)

Led migration of notification systems from monolithic to microservices architecture, improving scalability and reliability. Upgraded enterprise applications from Java 17 to Java 21/25 using OpenRewrite, leveraging Virtual Threads to improve throughput by 35-40%.

Java Spring Boot Microservices Docker Kubernetes OpenRewrite Virtual Threads REST APIs GitHub Actions OpenAPI Swagger

Education

Degrees, certifications, and relevant coursework

SE

Sri Venkateswara College of Engineering

Bachelor of Technology, Computer Science and Engineering

2017 - 2021

Grade: 8.08 CGPA

Pursued a Bachelor of Technology in Computer Science and Engineering, achieving a CGPA of 8.08.

Tech stack

Software and tools used professionally

OpenAPI

Chargebee

GitHub

Kubernetes

GitHub Actions

MySQL

PostgreSQL

MongoDB

Node.js

Spring Boot

Puppeteer

JavaScript

Java

Kafka

Grafana

Kibana

s3-lambda

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