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I am an accomplished Full Stack Java Developer with over 6 years of experience designing, developing, and deploying scalable, secure, and high-performance applications. I specialize in Java, Spring Boot, microservices architecture, Angular, React, and AWS, and I excel in collaborating within Agile environments to deliver impactful solutions. I have a proven track record of optimizing application performance, streamlining deployment processes with CI/CD automation, and implementing robust security measures such as OAuth2 and JWT. Currently based in Sunnyvale, CA, I am open to relocation and eager to leverage my expertise to drive innovation in Seattle, Dallas, Chicago, or New York City.…I am an accomplished Full Stack Java Developer with over 6 years of experience designing, developing, and deploying scalable, secure, and high-performance applications. I specialize in Java, Spring Boot, microservices architecture, Angular, React, and AWS, and I excel in collaborating within Agile environments to deliver impactful solutions. I have a proven track record of optimizing application performance, streamlining deployment processes with CI/CD automation, and implementing robust security measures such as OAuth2 and JWT. Currently based in Sunnyvale, CA, I am open to relocation and eager to leverage my expertise to drive innovation in Seattle, Dallas, Chicago, or New York City.

N AVEEN K UMAR L AKKARAM

Full Stack Developer, Developer, Programmer, +3

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I am an accomplished Full Stack Java Developer with over 6 years of experience designing, developing, and deploying scalable, secure, and high-performance applications. I specialize in Java, Spring Boot, microservices architecture, Angular, React, and AWS, and I excel in collaborating within Agile environments to deliver impactful solutions. I have a proven track record of optimizing application performance, streamlining deployment processes with CI/CD automation, and implementing robust security measures such as OAuth2 and JWT. Currently based in Sunnyvale, CA, I am open to relocation and eager to leverage my expertise to drive innovation in Seattle, Dallas, Chicago, or New York City.…I am an accomplished Full Stack Java Developer with over 6 years of experience designing, developing, and deploying scalable, secure, and high-performance applications. I specialize in Java, Spring Boot, microservices architecture, Angular, React, and AWS, and I excel in collaborating within Agile environments to deliver impactful solutions. I have a proven track record of optimizing application performance, streamlining deployment processes with CI/CD automation, and implementing robust security measures such as OAuth2 and JWT. Currently based in Sunnyvale, CA, I am open to relocation and eager to leverage my expertise to drive innovation in Seattle, Dallas, Chicago, or New York City.

Available to hire

I am an accomplished Full Stack Java Developer with over 6 years of experience designing, developing, and deploying scalable, secure, and high-performance applications. I specialize in Java, Spring Boot, microservices architecture, Angular, React, and AWS, and I excel in collaborating within Agile environments to deliver impactful solutions.

I have a proven track record of optimizing application performance, streamlining deployment processes with CI/CD automation, and implementing robust security measures such as OAuth2 and JWT. Currently based in Sunnyvale, CA, I am open to relocation and eager to leverage my expertise to drive innovation in Seattle, Dallas, Chicago, or New York City.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Hindi

Intermediate

Work Experience

Software Engineer 3 at Walmart

January 1, 2024 - Present

Worked with the AdTech team to manage user-related data and improve advertisement strategies using Java SE, Java EE, and Spring Framework, driving better-targeted ad campaigns. Optimized network calls to Cosmos DB, reducing costs by $9 million through improved data retrieval methods and resource management. Handled latency-critical reads and writes for 900 million user data accounts, ensuring high performance and reliability under heavy load conditions. Designed and implemented dynamic, scalable web applications using React and Node.js, improving user engagement by 25% through enhanced UI/UX features. Spearheaded the integration of cloud services using AWS (EC2, S3, Lambda), enabling real-time data processing and reducing server response times. Designed and developed scalable solutions using Spring Boot, Cosmos DB, and Kafka, improving the system's ability to process large volumes of transactions efficiently. Built and deployed microservices architecture, ensuring scalability and modul

Java Full Stack Developer at Infosys

November 30, 2022 - July 30, 2025

Developed scalable web applications using Java Spring Boot, React, and Node.js, focusing on efficient back-end systems and interactive, responsive front-end designs. Implemented microservices to handle high-volume data processing, reducing processing time by 40% for key business transactions. Designed and maintained RESTful APIs, enabling seamless data exchange between systems and improving data retrieval times by 25%. Managed and optimized databases including MySQL, ensuring high availability and minimal downtime for critical applications. Led the migration of monolithic application to microservices architecture, significantly improving system maintainability and scalability. Collaborated with cross-functional teams to align technical solutions with business needs, ensuring timely delivery of features and updates.

Full Stack Developer at HCL Technologies

March 31, 2020 - July 30, 2025

Built and maintained full-stack applications using Java Spring MVC for back-end services and AngularJS for front-end interfaces. Developed real-time analytics dashboards using React and JSP, enabling users to monitor business KPIs and make data-driven decisions. Integrated REST APIs to support data fetching and updates from a centralized database, improving response time and system efficiency. Optimized database queries and schema design, improving performance by 20% for high-traffic applications. Utilized Jenkins and Docker for continuous integration and deployment, streamlining the release process and ensuring high availability of applications. This contributed to the development of reusable components and modules, reducing development time for future projects.

Software Engineer 3 at Walmart

January 1, 2024 - Present

Managing user-related data to improve advertisement strategies using Java SE, Java EE, and Spring Framework. Optimized Cosmos DB network calls saving $9 million. Supported latency-critical operations for 900 million user accounts. Developed dynamic scalable web apps with React and Node.js, enhancing user engagement by 25%. Integrated AWS cloud services to enable real-time data processing, reducing server response times. Designed solutions using Spring Boot, Cosmos DB, and Kafka for efficient transaction processing. Implemented microservices architecture for scalability and modular maintenance. Collaborated with stakeholders in Agile settings to align technical and project goals. Developed RESTful APIs and managed builds with Maven. Established CI/CD pipelines with Jenkins and Docker. Maintained Cassandra-based data systems for user behavior analytics. Used JUnit and Mockito for unit testing and Postman for API testing. Monitored logs and enhanced system performance.

Java Full Stack Developer at Infosys

November 30, 2022 - August 4, 2025

Developed scalable web applications with Java Spring Boot, React, and Node.js focusing on backend efficiency and responsive front ends. Created microservices for high-volume data processing, reducing processing time by 40%. Designed and maintained RESTful APIs improving data retrieval by 25%. Managed and optimized MySQL databases for high availability. Led migration from monolithic to microservices architecture improving maintainability and scalability. Collaborated with cross-functional teams to ensure timely delivery of features and updates.

Full Stack Developer at HCL Technologies

March 31, 2020 - August 4, 2025

Built and maintained full-stack applications using Java Spring MVC and AngularJS. Developed real-time analytics dashboards with React and JSP to support data-driven decisions. Integrated REST APIs for efficient data fetching and updates. Optimized database queries, improving performance by 20%. Utilized Jenkins and Docker for CI/CD to streamline release processes. Developed reusable components to reduce future development times.

Software Engineer 3 at Walmart

January 1, 2024 - Present

Worked with the AdTech team to manage user-related data improving advertisement targeting using Java SE, Java EE, and Spring Framework. Optimized network calls to Cosmos DB, reducing costs by $9 million. Handled latency-critical operations for 900 million user accounts ensuring high performance and reliability. Developed dynamic scalable web applications with React and Node.js improving user engagement by 25%. Integrated AWS cloud services for real-time data processing, reducing server response times. Designed and developed solutions using Spring Boot, Cosmos DB, and Kafka to process large transaction volumes efficiently. Built and deployed microservices architecture for scalability and modularity. Collaborated with stakeholders and Agile teams, implemented RESTful APIs, managed builds with Maven, and established CI/CD pipelines with Jenkins and Docker. Created a Cassandra-based data system analyzing user behavior for business decisions. Ensured code quality using JUnit, Mockito, and P

Java Full Stack Developer at Infosys

November 1, 2022 - August 18, 2025

Developed scalable web applications using Java Spring Boot, React, and Node.js focusing on backend efficiency and responsive frontend design. Implemented microservices handling high data volumes reducing processing time by 40%. Designed and maintained RESTful APIs increasing data retrieval times by 25%. Managed and optimized MySQL databases ensuring high availability. Led monolithic to microservices migration improving maintainability and scalability. Collaborated cross-functionally to ensure timely feature delivery.

Full Stack Developer at HCL Technologies

March 1, 2020 - August 18, 2025

Built and maintained full-stack applications using Java Spring MVC for backend and AngularJS for frontend. Developed real-time analytics dashboards with React and JSP for monitoring business KPIs. Integrated REST APIs to improve data fetching and system efficiency. Optimized database queries improving performance by 20%. Employed Jenkins and Docker for CI/CD to streamline release processes. Created reusable components reducing future development time.