Tarun LNU

Tarun LNU

Technical Lead and Senior Software Engineer with 12+ years of Global Delivery Experience. Expertise in Java, Spring Boot, Microservices, Kafka, RabbitMQ, React, JavaScript, Distributed Systems, AWS, Docker, and CI/CD

Bangalore, India

#OpenToWork

About

Technical Lead with 12+ years of global delivery experience in the USA, Kuwait, Japan, and India. Expertise in Java, Spring Boot, Microservices, Distributed Systems, and AWS in building high-throughput, fault-tolerant distributed systems for e-commerce platforms. Experienced in leading cross-functional teams of 8–15 engineers, including 40% scalability improvements, maintaining 99.9%+ platform availability, 30% lower latency, and 25% higher throughput across SaaS, banking, insurance, and e-commerce platforms.

What I'm looking for

As a tech lead, I have owned systems end-to-end, mentored teams of 8–15 engineers, and partnered closely with product, QA, and business stakeholders to deliver production-grade platforms. I focus on writing clean, maintainable code, setting engineering standards, and building systems that are reliable, scalable, and easy to evolve.

Experience

HRize LLC

Technical Lead

Dec 2023 – Present

 Led a cross-functional engineering team of 8–15 developers, delivering enterprise-grade microservices while owning architecture, technical direction, and production delivery.  Spearheaded migration of legacy monolithic applications into cloud-native microservices architectures, reducing deployment cycle time by 35% and significantly lowering technical debt.  Architected scalable REST APIs and API Gateway solutions, reducing API latency by 25% and improving service reliability across distributed systems.  Designed event-driven architectures with Apache Kafka, increasing platform scalability by 40% to support peak transaction volumes.  Designed and delivered high-performance Java 17 and Spring Boot microservices processing 10k requests per second (RPS) while maintaining 99.9%+ platform availability.  Developed AI-powered enterprise HR solutions using Spring AI, LLMs, RAG, and MCP, enabling context- aware conversations while reducing AI hallucinations by approximately 60%.

JavaSpring BootApache Kafka

HRize LLC

HRize LLC.

Technical Lead

Dec 2023 – Present

• Led a cross-functional engineering team of 8–15 developers, delivering enterprise-grade microservices while owning architecture, technical direction, and production delivery. • Spearheaded migration of legacy monolithic applications into microservices architectures, reducing deployment cycle time by 35% and significantly lowering technical debt. • Built event-driven architectures with Apache Kafka, increasing platform scalability by 40% to support peak transaction volumes.

MicroservicesApache KafkaDistributed Systems

HRize LLC.

J.M.T. Al-Ghanim & Sons Co.

Sr. Java Developer

May 2023 – Nov 2023

• Led backend development for a high-volume e-commerce platform integrating inventory, order management, and third-party vendor ecosystems. • Refactored legacy applications using SOLID principles and design patterns, improving maintainability, extensibility, and code quality. • Built secure, multi-tenant REST APIs using OAuth2, Okta, and Spring Security, ensuring enterprise-grade authentication and authorization.

JavaSpring BootAWS

J.M.T. Al-Ghanim & Sons Co.

Senior Software Engineer

Jun 2022 – Jan 2023

• Delivered asynchronous messaging workflows using RabbitMQ, improving distributed data synchronization by 20%. • Created scalable REST APIs, reducing API latency by 25% and improving service reliability across distributed systems. • Increased test coverage from 45% to 92% through automated unit and integration testing (JUnit/Mockito), reducing production defects by 15% and accelerating release cycles from bi-weekly to weekly delivery.

RabbitMQJUnitDocker

DealerSocket India Pvt. Ltd.

Senior Consultant

Feb 2019 – May 2022

• Developed secure, high-throughput REST APIs with sub-second response times for mission-critical financial applications. • Improved application throughput by 25% through JVM tuning, performance profiling, and database optimization.

JavaAzureMicroservices

MSG Global Solutions

L&T Technology Services

Senior Engineer

Oct 2016 – Jan 2019

• Designed and deployed robust REST APIs for real-time data ingestion and processing using Spring Boot and Spring Data JPA for international engineering clients. • Created modernization of legacy financial systems into Java microservices, improving deployment frequency, resilience, and scalability.

Spring BootSpring Data JPAREST APIs

L&T Technology Services

Senior Software Engineer

Apr 2015 – Jun 2016

• Developed scalable backend modules for web-based enterprise applications using Core Java, Spring MVC, and Hibernate/JPA. • Collaborated with frontend developers to integrate RESTful APIs, ensuring end-to-end functionality and consistent data contracts.

JavaSpring MVCHibernate

XcelNow Solution

Software Developer

Jul 2012 – Jul 2014

• Designed and implemented application features using Java and Object-Oriented Programming principles. • Designed database schemas and wrote complex SQL queries for reporting modules.

JavaOOPSQL

Fantabulous Technologies Pvt. Ltd.

Education

Sri Sukhmani Institute of Engineering & Technology

Bachelor of Technology (B.Tech) · Computer Science and Engineering

2008 – 2012

Sri Sukhmani Institute of Engineering & Technology

Bachelor of Technology · Computer Science and Engineering

2008 – 2012

Certifications

Generative AI Certification

Outskills

Sep 2025 – No expiry

Skills

ScalibilityDistributed SystemSpring AIGrafanaPrometheusMockitoJUnitKeycloakOAuth 2.0RedisPostgreSQLDockerAzureAWSReactRabbitMQApache KafkaMicroservicesSpring BootJava

Languages

EnglishHindi