Manikumar Gajjela

About Manikumar Gajjela

I am a Senior Full Stack Java Developer with 7+ years of professional experience specializing in Java 17, Spring Boot, Microservices Architecture, Cloud Computing, and Frontend Development. With a solid background in developing scalable enterprise solutions, I excel at designing and deploying robust, high-performance applications leveraging modern cloud services such as AWS, Azure, and Google Cloud Platform (GCP).My expertise includes hands-on experience in building distributed systems using Apache Kafka for event-driven architectures, developing RESTful and SOAP-based APIs secured through OAuth2 and JWT authentication standards, and orchestrating containerized applications using Docker and Kubernetes.Core Technical Skills:Programming Languages: Java 17, Python, JavaScript, TypeScript, ScalaJava Frameworks: Spring Boot, Spring MVC, Hibernate ORM, Spring Security, Spring BatchFrontend Technologies: Angular, React, Node.js, HTML5, CSS3, AJAXCloud Platforms: AWS (Lambda, EC2, S3, RDS, DynamoDB, CloudWatch), Azure, GCPDevOps Tools: Docker, Kubernetes, Terraform, Jenkins, GitLab CI/CD, Maven, GradleDatabases: Oracle, PostgreSQL, MySQL, SQL Server, MongoDB, CassandraMessaging & Streaming: Apache Kafka, JMS, ActiveMQTesting Frameworks: JUnit, Mockito, PowerMock, Cucumber, SeleniumMethodologies: Agile, Scrum, Test-Driven Development (TDD), Behavior-Driven Development (BDD)Career Highlights:Built and deployed highly scalable microservices solutions with Spring Boot and Kafka, reducing system latency and boosting performance by over 35%.Executed successful migrations to cloud infrastructure on AWS and GCP, significantly enhancing system scalability and reducing operational costs.Implemented advanced CI/CD pipelines with Jenkins and GitLab CI, automating end-to-end deployments and accelerating development timelines.Developed rich frontend applications using modern frameworks (Angular, React) to deliver exceptional user experiences aligned with business goals.Certifications:AWS Certified Developer – Associate (Amazon Web Services)I am passionate about leveraging cutting-edge technologies and innovative software engineering practices to solve complex business challenges. I\'m always open to conversations about collaboration and new career opportunities in software development and cloud engineering domains.Feel free to reach out—I look forward to connecting!

Experience

1. Backend Software Developer

   JPMorganChase

   Jan 2023 — Present · US

   As part of the Core Banking modernization initiative at JPMC, I’ve been leading backend development efforts to replace legacy monolith systems with high-performing, cloud-native microservices. I work extensively with Java 17, Spring Boot, and Kafka to build secure, scalable APIs that process millions of transactions in real time.I’ve designed and implemented RESTful services that support key operations like customer account management and transaction processing—improving system responsiveness and maintainability. On the infrastructure side, I’ve automated deployments using Terraform and Jenkins, and containerized services using Docker and Kubernetes to ensure high availability and continuous delivery.Security and reliability are core to my role—I’ve implemented token-based authentication (OAuth 2.0, JWT) and worked with DynamoDB and MySQL to optimize both structured and NoSQL data workflows. I also collaborate in Agile ceremonies, contribute to sprint planning and peer reviews, and actively mentor junior developers on best practices.Key contributions:Reduced application latency by ~40% using efficient Kafka pipelines.Automated infrastructure provisioning on AWS using Terraform, saving hours of manual effort weekly.Integrated Splunk and CloudWatch for real-time observability and incident resolution.Tech Stack: Java 17, Spring Boot, Kafka, AWS (EC2, Lambda, S3, DynamoDB), Terraform, Jenkins, Docker, Kubernetes, REST APIs, MySQL, DynamoDB, OAuth 2.0, JIRA, Agile/Scrum

Education

• Pace University - Seidenberg School of Computer Science and Information Systems

  Master's degree, Computer Science

• Osmania University

  Bachelor of Science, Computer Science