Mareeswaran Rajendiran
Lewis Center
Summary
13 years of Java development experience in different phases of Software Development Life Cycle. Experience in Retail industry with Ascena Retail Group Inc and Sephora Inc. Also Banking industry Wells Fargo in Development & Maintenance projects (Site Reliability Engineer). Experienced in JAVA design patterns and Microservices Architecture. Expertise in JAVA, J2EE, OOP and Exception Handling, Hibernate (ORM). Expertise in Java Spring Batch, Spring MVC, Spring Boot, Spring Cloud & Spring Security. Expertise in event driven microservices creation using Apache Kafka (Pub/Sub). Expertise in SQL Database (Oracle/PostgreSQL) and NoSQL database MongoDB. Expertise in front end technologies HTML 5, CSS 3, JavaScript, React.js & Angular.js. Experienced in CI/CD pipeline creation using Git, Gradle, Maven, Jenkins, Sonar, JFrog. Experienced in TDD/BDD/Junit & Karate frameworks. Experienced in microservices ecosystem Netflix Eureka, Zuul, Sleuth, Zipkin, Resilience4j. Experienced in containerization tools like Kubernetes & Docker. Experienced in cloud infrastructure like PCF & AWS/GCP/Azure. Exposure to AWS services like EC2, VPC, S3, Route 53, ECS, EKS & CloudWatch. Exposure to Google Kubernetes Engine for deploying the APIs using Docker image.
Overview
13
13
years of professional experience
1
1
Certification
Work History
Lead - Site Reliability Engineer
Sephora Retail
02.2025 - Current
- Development & Site Reliability
- As a Lead SRE responsible for Provide Develop & L3 support for production issues, performing root cause analysis (RCA) and driving resolution.
- Develop/Support and optimize Java Spring Boot Microservices architectures deployed on cloud or Kubernetes.
- Having strong knowledge in Restful API and Graph QL implementations.
- Expertise in all databases SQL(PostgreSQL/MySQL) & NoSQL MongoDB & DynamoDB.
- Define and maintain SLIs, SLOs, and SLAs to measure system reliability.
- Ensure high availability and failover mechanisms for critical e-commerce platforms.
- Ensure zero-downtime deployments and rollback strategies.
- Manage and optimize cloud infrastructure using Azure DevOps, Azure Functions.
- Use Prometheus, Grafana, Splunk, Dynatrace to monitor application and infrastructure performance.
- Utilize Splunk, Dynatrace, and Prometheus for log analysis and debugging.
- Implement alerting mechanisms using tools like Prometheus Alert manager, Splunk Alerts and Dynatrace.
- Manage distributed systems and event-driven architecture using Kafka for messaging and Redis for caching.
- Collaborate with development teams to improve system resilience and fix recurring issues.
- Maintain and optimize CI/CD pipelines using Git, Jenkins, and Azure DevOps.
- Reduce deployment failures and rollback issues through blue-green or canary deployments.
- Support and optimize microservices-based architectures deployed on cloud or Kubernetes.
- Implement security best practices in Azure DevOps, Jenkins, and Git workflows.
- Develop backup and disaster recovery (DR) strategies for critical services.
- Set up automated alerting and anomaly detection for proactive issue resolution.
- Implement Kasada's bot detection across web applications and APIs to prevent fraudulent traffic.
- Implemented monitoring solutions to enhance system reliability and reduce downtime.
- Automated deployment processes, improving efficiency of software releases across multiple environments.
- Collaborated with development teams to optimize application performance through proactive infrastructure management.
- Led cross-functional teams in post-incident reviews, driving continuous improvement initiatives based on findings.
- Operating System: UNIX & Windows
- Languages: ATG, Commerce Tools, Microservices, Azure DevOps, Azure Functions, Argo CD, Spring Boot, Resilience4j, Swagger, Kafka, Redis Cache, React.js, Prometheus, Grafana, Splunk, Dynatrace, JWT, JSON, Jenkins, IntelliJ Ultimate, Postman, Git, JIRA, Sonar, Maven, Gradle, MySQL, MongoDB, Docker, Kubernetes, Akamai, Istio, Kasada.
Senior Software Engineer (Microservices Developer)
Wells Fargo Financial services Company
02.2021 - 02.2025
- As an API developer responsible for designing and implementation of the functional features.
- I am responsible for driving the daily status meetings and co-ordinate with the offshore team on the development activities and code review.
- Extensively Involved in Requirement Gathering, Estimation and Planning Discussions.
- Followed agile methodology in development and maintaining the system.
- Extensively used J2EE JAX-RS framework for the Restful API implementation using Java 8,11,17 & 21 features.
- Experienced in Java 21 Features like Virtual Threads, Sealed Classes & Records.
- Extensively used Spring MVC, Spring Boot, Spring Security for the microservices implementation.
- Used Maven and Gradle as the build tool for the microservices created.
- Implemented test coverage and automation using TDD/BDD/Junit/Mockito & Karate frameworks.
- Implemented event driven micro services using Spring Boot, Rest Template, Kafka (Pub/Sub).
- Extensively used Oracle DB as the backend and fine-tuned it for any performance issues.
- Extensively used MongoDB for API backend integrations.
- Involved in CI/CD pipeline creation using Jenkins and Git.
- Implemented the circuit breaker using Resilience4j for the developed APIs fault tolerant.
- Integrated the systems with Salesforce cloud for the email delivery features.
- Extensively used the Redis Cache for the Content rendering and CMS Integrations.
- Extensively used Splunk for application error monitoring and troubleshooting with the help of logs.
- Extensively used Amazon S3 for the Image storage capabilities.
- Extensively used various performance-monitoring tool like AppDynamics, Dynatrace.
- Implemented the AWS Infrastructure for the POCs using EC2, VPC, S3, Route 53, ECS & EKS.
- Experienced in microservices deployment into AWS-EKS & Google GKE using docker.
- Experienced in React.js for front end development.
- Wells Fargo & Company is an American multinational financial services company with corporate headquarters in San Francisco, California, operational headquarters in Manhattan, and managerial offices throughout the United States and overseas. To which the microservices API capabilities and features has been delivered in Agile methodology.
- Operating System: UNIX & Windows
- Languages: Spring Boot, Spring Cloud, Netflix Eureka, Zuul, Sleuth, Zipkin, Resilience4j Open API, Kafka, Redis Cache, React.js, Angular.js, Bootstrap, JPA, SAML, JWT, JSON, Jenkins, IntelliJ Ultimate, Postman, SOAP UI, Git, JIRA, Sonar, Maven, Gradle, MySQL, MongoDB, Docker, Kubernetes, PCF, AWS.
JAVA - Full Stack Developer (Tech Lead)
Ascena Retail Group, Inc
05.2017 - 01.2021
- Worked as a Full Stack Developer, contributing to the web, middle-tier, and persistence layers of the application.
- Actively participated in requirement gathering, effort estimation, and planning discussions.
- Followed Agile methodologies to develop and maintain the system efficiently.
- Collaborated with business partners for content creation and publishing using Endeca and BCC.
- Developed UI components using React.js, leveraging the MVC framework and HTML5.
- Implemented asynchronous functionality using AJAX for dynamic web interactions.
- Designed and optimized stylesheets using CSS3 for responsive and visually appealing interfaces.
- I gained expertise in web development using Spring MVC, JavaScript (ES6), and jQuery.
- Developed and tested RESTful APIs for various e-commerce feature implementations.
- Utilized Maven as a build tool for application development and deployment.
- Handled development and production support issues for existing applications.
- Extensively used Splunk for monitoring application errors and troubleshooting via log analysis.
- Implemented responsive design using Bootstrap utilities, ensuring compatibility across devices.
- Developed an image-based search solution leveraging Spring Boot, Azure Computer Vision API, and Bootstrap.
- Worked with Oracle DB, optimizing database performance and resolving performance-related issues.
- Experienced in performance monitoring tools such as AppDynamics and Dynatrace.
- Developed microservices using Spring Boot and Kafka to enhance system scalability.
- Involved in CI/CD pipeline creation using Jenkins and Git for automated deployment.
- Worked extensively with Manhattan OMS for order fulfillment processes.
- Gained experience with DevOps tools, including Kubernetes, Jenkins, and Docker, for containerized deployment and orchestration.
- In Ascena Retail Group, Inc., there are 5 major women apparel brands. To which the ecommerce capabilities and features has been delivered in Agile methodology. As ecommerce support analyst, I am responsible for the site functionality and major implementation go live. Also worked with implementation team for the various development activity in terms of front end and backend development, bug fixing and troubleshooting issues.
- Operating System: UNIX & Windows
- Languages: ATG Ecommerce Framework, Spring Boot, Kafka, React.js, Bootstrap, JSP, CSS3, HTML 5, JSON, Jenkins, Eclipse, Postman, SOAP UI, Git, Splunk, App Dynamics, Dynatrace, JIRA, Sonar, Maven, Oracle 11g, Akamai, Kubernetes.
Full Stack JAVA Developer
Charming Shoppes
10.2014 - 04.2017
- Conducted analysis of new business requirements for the Oracle Micros E-commerce Platform.
- Created technical design specifications, sequence diagrams, and low-level design documents for feature implementation.
- Managed offshore team members by assigning tasks as an E-commerce Analyst.
- Led production code changes and performed code reviews in the Tech Lead role.
- Collaborated with the Oracle Micros team for production go-live and support activities.
- Performed daily health checks on third-party and critical services to proactively identify and resolve issues.
- Implemented various tags using Ensighten for enhanced tracking and analytics.
- Debugged and resolved system errors efficiently.
- Managed code version control using SVN.
- Designed, developed, and tested RESTful Web Services and SOAP-based services.
- Worked on JSP, Servlets, and the Struts framework, providing production support for existing applications.
- Created test cases and maintained a traceability matrix for quality assurance.
- Provided support for critical issues and managed batch job operations.
- Developed an interface for data migration from the Oracle-Micros Platform to the Oracle-ATG platform.
- Automated sanity and regression test suits using Selenium scripts to assist the QA team.
- Operating System: Windows XP/Vista/7
- Languages: Java/J2EE, JAVA Struts 1.2, Teradata, HTML, CSS, and XML
- Special Software: Eclipse 3.5, SVN, Oracle 10g
Java Developer
Charming Shoppes
08.2012 - 10.2014
- Analyze business requirements provided by the client to ensure accurate implementation.
- Develop analysis and design documentation, including system testing plans.
- Evaluate the existing system and enhance it to support automated transactions.
- Manage packaging and deployment on onshore test servers for user acceptance testing.
- Identify and implement improvements to enhance system efficiency.
- Successfully converted all COBOL business logic to Java using Spring Batch.
- Optimize SQL queries to enhance overall system performance.
- Collaborate effectively with onsite teams to ensure seamless communication and coordination.
- Maintain high-quality standards in all project deliverables.
- Hands-on experience in implementing Crystal Reports.
- Prepare key project documents such as system test plans, detailed design documents, and unit test plans.
- Operating System: Windows XP/Vista
- Languages: JAVA, SQL, Spring Batch
- Special Software: Oracle 10g, Eclipse 3.5, SVN
Education
Bachelor of Engineering - Electronics & Instrumentation
Anna University
Chennai, India01.2012
Skills
- Java, Scala, and Python programming
- Web Technologies: Spring MVC, Spring Boot, REST, SOAP, APIGEE, JWT
- Front End: HTML, CSS, JS, JSP, Reactjs, Angularjs, Bootstrap
- IDEs: Eclipse Oxygen, IntelliJ Ultimate-20243, Visual Studio 2017, Android Studio 36
- CI/CD: SVN, Git, Jenkins, Maven, Gradle, Sonar cube, U-Deploy
- SQL Tools: Teradata 1410, Oracle 115g, SQL Developer 2016 (SSIS), Mongo DB Compass
- Operating Systems: Windows, Linux/Unix & MAC
- Other Tools: Crystal Reports, Control M, JIRA, Postman, SOAP UI, Splunk, App Dynamics, Dynatrace, Grafana, Kasada, Akamai
Certification
- Certified Dev-Ops Practitioner from Simplilearn.
- Apache Spark and Scala Developer from Edureka.
Timeline
Lead - Site Reliability Engineer
Sephora Retail
02.2025 - Current
Senior Software Engineer (Microservices Developer)
Wells Fargo Financial services Company
02.2021 - 02.2025
JAVA - Full Stack Developer (Tech Lead)
Ascena Retail Group, Inc
05.2017 - 01.2021
Full Stack JAVA Developer
Charming Shoppes
10.2014 - 04.2017
Java Developer
Charming Shoppes
08.2012 - 10.2014
Bachelor of Engineering - Electronics & Instrumentation
Anna University