SATHWIKA POTHUKANURI

Full Stack Java Developer

ad3u53@r.postjobfree.com +1 (469) 249 - 0102

OBJECTIVE

IT professional around 10 years of experience as Java Full stack developer with expertise in Design, Development, Analysis and Testing and implementation of distributed Web Based Applications and Client/server applications using Java/J2EE technologies that deliver exceptional performance and scalability. Seeking a challenging opportunity to utilize my experience to deliver high-quality software solutions.

PROFESSIONAL SUMMARY

Hands on experience with application development using J2EE Technologies like Spring, Hibernate, Servlets, JSP, JDBC, EJB, JPA, JavaBeans and Web services with concentration on effortless backend functioning.

Proficient in User Interface design; developed Front End components using JSP, HTML5, CSS3, JavaScript, Ajax, jQuery, ReactJS, Angular, Typescript.

Experienced with AngularJS directives for initialization of AngularJS application data and implemented AngularJS Expressions, Directives, Controllers, filters and creation of Angular JS service layer.

Proficient in building User-Interface with ReactJS and worked with React Flux architecture and utilized React-Router for Dynamic Routing.

Strong foundation on developing web applications using Spring Boot, Spring Core, Spring MVC, Spring ORM, Spring JPA, Spring Rest and Spring Cloud (PCF).

Hands on experience in design and development of robust and highly scalable applications and APIs based on REST and SOAP principles using AXIS, WSDL, UDDI, XML, JAX-WS, JAX-RS, JAX-RPC and Jersey, Apache CXF frameworks.

Expertise in Design Patterns like Singleton, Business Delegate, Service Locator, DAO, DTO and MVC, Template in the development of multi-Tier distributed Enterprise Applications and sound knowledge on multi-threading.

Extensive SDLC experience including Requirement Analysis, Design and Coding, Application Implementation, unit Testing, System Testing and Production support using Agile and Waterfall methodologies.

Experience in testing frameworks like JUnit, Jasmine for angular functionality testing and Karma for running tests.

Extensively used Microservices architecture with Spring Boot services interacting through combination of REST and Apache Kafka message brokers.

Experience in developing web, enterprise and SOA applications using Core Java, OOAD, Multi - Threading, JavaBeans, JSP, Servlets, JNDI, JDBC, Hibernate, JPA, Spring, Web Services (SOAP, Restful and Micro-Service),XSD, XML, XSLT, JSON, JAX-B, Apache Commons, EJB, MQ-Series, Ajax, Oracle, and Linux/UNIX.

Expertise in maintaining (ORM) Object Relational Mapping Files using JPA and Hibernate to ensure object persistency and transaction control.

Tested and implemented RESTful and SOAP Web Services using tools like Postman and SOAP UI.

Experience in Configuring, Deploying and maintaining Application and Web Servers such as Oracle Web Logic, JBoss EAP, Apache Tomcat Server and IBM Web Sphere.

Hands on experience on working with OAUTH to provide authentication and authorization to Rest services by using JSON Web Tokens (JWT) to securely communicate JSON Objects.

Experience in Integrating and deploying applications using Apache Camel, Apache CXF, Apache Kafka, ActiveMQ, Service Mix and JBoss Fuse Enterprise Service Bus (ESB).

Expert in working with databases like Oracle, MySQL, GraphQL, PostgreSQL, DB2, SQL server to generate complex SQL,PL/SQL queries, Stored Procedures, sub queries like joins, view, triggers etc. and NoSQL databases like MongoDB, Cassandra for database modelling and development.

Highly skilled in Cloud based deployment on AWS using tools such as EC2, Lambda, VPC, S3, EBS, ELB, Cloud-Front, Open Search, IAM, RDS and Cloud Watch, Elastic cache, ELK Stack SNS, SQS and API Gateway.

Proficient in using various Azure services, including Virtual Machines, App Service, Azure Functions, and Azure SQL Database, to design and deploy scalable cloud solutions.

Skilled at using testing tools such as Postman, Jest, Enzyme, JUnit, Apache JMeter and debugging tools such as ES Lint, Redux Dev Tools and Chrome Developer Tools.

Enhanced JUnit and Mockito test scenarios to cover WCAG criteria, expanding automated testing to include standards related to mobile accessibility and input methods.

Experience with deployment tools such as Jenkins, Docker image, Docker Containers and orchestrated these containers using Kubernetes for streamlined development and deployment processes.

Long-time experience in working with version control systems like GIT and used Source code management client tools like GitHub, Bitbucket.

Good exposure in interacting with clients and solving application environment issues and can communicate effectively with people at different levels including stakeholders, internal teams, and senior management.

Strong knowledge on Splunk Log Management, monitoring, email notification to users for threshold limit.

Hands on experience in building tools like Maven, ANT, Jenkins to automate the process.

Configured and created application log files using Log4J, Log4J2 to trace required application messages.

Extensively worked on JIRA and Pivotal Tracker for Bug/Issue tracking and project management.

BACHELORS

Bachelor’s in Computer Science from JNTUH 2012

TECHNICAL SKILLS

Languages

Core Java, Java/J2EE, SQL, Python

J2SE/J2EE Technologies

JSP, JDBC, Servlets, JSTL, EJB, JPA, JAX-RPC, RMI, JMS, Java Beans, REST, SOAP, JUnit, AWT,

Scripting Language

JAVA Script, jQuery. Python, Shell Script, bash

Web Development

HTML, CSS, JavaScript, AJAX, XML, AngularJS, Angular 11, ReactJS 17, Typescript, Node.js, WCAG, JSON

JAVA Frameworks

Spring 5.3, Spring Boot, Spring Security, Struts, Log4J, Hibernate.

Web/App Servers

Apache Tomcat 10, IBM WebSphere, Web Logic, JBoss, Apache HTTP Server

Version

Control Tools

GIT, Tortoise SVN, Microsoft TFS, GitHub

IDE / Tools

Eclipse 3.0, NetBeans 5.0, IntelliJ, SQL Developer, Visual Code Studio, MySQL Workbench

Databases

Oracle, MySQL, MS SQL Server, GraphQL, Cassandra, Mongo DB, PostgreSQL, DynamoDB

Testing tools

Junit, Mockito, Jasmine, Cucumber, SonarQube, Postman

Build Tools

Gradle, Jenkins, ANT, Maven 3.8

DevOps tools

Docker, Kubernetes, ELK stack, Bitbucket, GitLab, Splunk

Web Service

Technologies

SOAP, JAX-B, JAX-RPC, JAXP (DOM, SAX), WSDL, JAX-WS, REST, WADL, JAX-RS, Apache Axis2

Platforms

Windows, UNIX, LINUX (Ubuntu), Windows Server

Methodologies

Agile (XP, Scrum), Waterfall, Kanban

Cloud Technologies

AWS, Azure, GCP, PCF, JIRA

Messaging

Kafka, RabbitMQ, JMS

PROFESSIONAL EXPERIENCE

Bank of Montreal Jan 2023 – Till Date

Senior Java Full Stack Developer

Developed a Client-Transfer-Application to facilitate various kinds of money transfers such as ACH, wire transfers and Cheques.

Implemented a robust authentication and authorization system to secure the platform using techniques like JWT (JSON Web Tokens) for user authentication and access control.

Leveraged Java 17's security features, such as the latest cryptographic algorithms and security enhancements, to ensure the financial project meets industry-standard security requirements.

Applied WCAG principles to Java 17 and Spring Boot applications, emphasizing accessibility features in the backend logic.

Created interactive and responsive UI components for clients to manage their portfolios, view financial data and to perform analysis using Angular 11.

Implemented WCAG 2.1 accessibility patterns in Angular 11 components, addressing new criteria for focus management, input modalities, and more.

Created reducers and actions in NgRx to handle state changes, facilitating clean and maintainable code architecture and developed lazy loaded Angular modules and used VMware clarity components to build UI.

Implemented Angular 11 Router to enable routing and navigation capabilities to create a seamless user journey through various financial modules and pages

Utilized NgRx, a state management library, to maintain a centralized and predictable state for the application, enhancing data synchronization and consistency Integrated third-party libraries and APIs for charting, data visualization and financial market data to enhance functionality.

Led the effort to migrate the project from a previous Java version to Java 17, ensuring backward compatibility with existing code and minimizing any potential disruptions to ongoing development.

Integrated the Angular application with RESTful APIs to fetch and display real-time data, ensuring seamless user experiences and API versioning strategy for portfolio management.

Designed the database schema to efficiently store user portfolios, transactions, financial instrument data to ensure data integrity using Hibernate to integrate with Oracle DB.

Developed microservices and created REST API's using Java 11 Spring Boot framework, and Spring REST implementation and used Maven as a build tool.

Integrated Python scripts and libraries into Java-based applications for specific tasks, such as data analysis, machine learning and automation.

Implemented traffic routing strategies using Amazon Route 53, such as weighted routing, latency-based routing, and failover, to optimize application performance and availability. Developed Splunk reports that provide a high-level overview of the Application Health.

Utilized Swagger UI to test API endpoints and validate request and response structures, ensuring API functionality and adherence to specifications.

Implemented Kafka consumer and producer configurations to use for high-volume streaming with pub-sub model using multiple inheritance AVRO schemas with same topic.

Deployed end to end event-driven microservices architecture using Apache Kafka and deployed with Kafka Elasticsearch and worked with Confluent components such as Kafka Connect, Kafka Streams, and Schema Registry.

Utilized infrastructure as code tools such as Terraform or AWS CloudFormation to provision and manage AWS EKS clusters, ensuring consistency and reproducibility across environments.

Developed and maintained Kubernetes manifests using YAML for defining application deployments and configurations.

Utilized Helm for package management and simplifying the deployment of Kubernetes applications. Expertise in Golang concurrency patterns like goroutines and channels.

Skilled in building efficient applications using frameworks like Gin, Echo, and Revel for web development and APIs.

Worked on developing Restful endpoints to Cache application specific data in in-memory data clusters like Redis.

Used spring data JPA with default implementation of Hibernate ORM for database connectivity to abstract the complex configuration involved with connection management.

Experienced with event-driven and scheduled AWS Lambda functions to trigger various AWS resources.

Working Knowledge in EC2 by creating snapshots, volumes and security groups for public and private instances.

Created AWS EC2 instances and installed required configurations and applications on it and created S3 buckets for storing object level data into it.

Integrated DynamoDB with serverless computing framework AWS Lambda for event-driven and cost-efficient architecture.

Designed efficient and scalable data models tailored to specific application requirements using DynamoDB's schema-less design.

Worked with version control systems GIT to manage source code and enable version control in CI/CD processes.

Developed custom AEM components, templates, and dialogs to implement specific design and functionality requirements.

Utilized Terraform on AWS to streamline infrastructure creation and management through code.

Automated deployment and updates using Terraform's declarative syntax and version-controlled configurations ensured consistency and reliability in the cloud environment.

Implemented data-driven testing using Cucumber scenarios to cover multiple test scenarios with varying inputs.

Utilized Cucumber's reporting capabilities to generate detailed and meaningful test reports for stakeholders.

Used Log4J API for logging and debugging. Conducted end-to-end testing of Angular 14 using the Protractor framework and implemented integration and behavioral-driven testing using Selenium and Cucumber.

Developed and integrated custom Elasticsearch plugins to extend OpenSearch functionality and meet specific project requirements.

Used S3 buckets for storing the CSV files and used the Java 17 AWS SDK to read and parse the data.

Developed and executed a comprehensive IAM strategy for the organization, including user provisioning, access control policies, and identity governance.

Incorporated SonarQube into the project's continuous integration and delivery pipeline. By integrating SonarQube with the build process, the project team could automatically trigger code analysis on each build, allowing for early detection of quality issues.

Environment: Java 17, Angular 11, Spring Boot, WCAG, REST, Hibernate, Kafka, Apache Tomcat, Splunk, Spring JPA, Oracle, Dynamo DB, Golang, Eclipse, Cucumber, Cassandra, JMeter, Selenium, Jenkins, GitHub, Docker, Log4j, AWS EC2, IAM, S3, RDS, SQS, JIRA, SAML, Kubernetes.

Guardian life Insurance. Oct 2021 –Dec 2022

Java Full Stack Developer

Spearheaded the migration process to transition a React Native-based mobile application to native mobile platforms. Collaborated with the development team to assess the feasibility of the migration and created a comprehensive plan for the smooth transition.

Analyzed system performance impacting the complete product for non-functional requirements like reliability, operability, performance efficiency and security.

Assisted in creation of simple, modular, extensible functional design for the product in adherence to the requirements.

Implemented routing logic and navigation from screen to screen and implemented login functionality on the client side in ReactJS.

Implemented various screens for the front end using React JS and used various predefined components from NPM (Node Package Manager) and Redux library.

Utilized ReactJS features like props and state management to create interactive and dynamic user interfaces.

Proficient in Single Sign-On (SSO) authentication and Security Assertion Markup Language (SAML) integration, enabling seamless user authentication across multiple applications.

Develop ReactJS components with a focus on WCAG 2.1, implementing accessibility features such as ARIA attributes, keyboard navigation, and proper focus management.

Implemented React JS virtual DOM for client-side view rendering services, React-Redux for state management and React-Router for client-side routing for dynamically changing client-side content.

Used Spring MVC framework for implementing Model-View- Controller (MVC) architecture at the Web tier level to isolate each layer of the application so that complexity of integration will be reduced.

Used Spring AOP for solving crosscutting concerns like keeping logged data and transactions details etc.

Used Spring Batch for processing large amount of data like transaction management, job processing, resource management and logging.

Secured the API's by implementing Oauth2 token-based authentication/authorization scheme using spring security.

Integrated AWS EKS into CI/CD pipelines using tools like Jenkins or AWS CodePipeline to automate application deployment, testing, and rollbacks.

Designed and developed third-party Payment services to Offer Users Convenient Payment Methods based on OAuth Protocol.

Developed event-driven architectures using Confluent Kafka to enable data integration and event processing.

Experience with Kubernetes concepts such as Pods, Services, Deployments, Stateful Sets and Ingress.

Designed and implemented Kubernetes clusters on various platforms, including cloud providers and on-premises environments.

Extensive experience in Golang development, including designing, coding, testing, and deploying applications.

Proficient in writing efficient and scalable code using Golang's standard library and best practices.

Used Hibernate ORM framework as persistence engine and wrote Hibernate Queries to automate the mapping between Oracle database and Objects in Java 16.

Worked with MongoDB to store non-relational data into collection and retrieve them whenever required.

Utilized Terraform workspaces to manage multiple environments (dev, test, production) and maintain separation between configurations.

Experienced in troubleshooting and resolving issues related to Terraform deployments, including state conflicts and resource dependencies.

Designed and developed RESTful APIs in compliance with WCAG standards, focusing on providing accessible data exchange.

Implemented AWS functions to run scripts in response to events in Amazon DynamoDB tables, S3 buckets, and HTTP requests using Amazon API Gateway and Lambda.

Utilized AEM's content management capabilities to organize, manage, and publish digital content across various channels.

Worked with AEM's integration capabilities to connect external systems and services for seamless data exchange.

Managed and maintained access permissions for users, groups, and roles in IAM systems.

Worked on setting up Maven scripts to build, package, and deploy application code to the target WebLogic Application Servers and worked on continuous integration servers like Jenkins.

Worked on AWS services to deploy static websites and dynamic Web Apps on EC2 using Elastic Beanstalk and Elastic Container Service-Docker.

Automated Route 53 configurations using AWS CloudFormation or Terraform, ensuring consistency and repeatability in DNS management.

Involved in creating EC2 instances and installed required configurations and applications on it and created S3 buckets for storing object level data into it.

Utilized tools like React DevTools and performance profiling to identify and resolve performance bottlenecks.

Developed API’s to read and publish data from Elasticsearch cluster using native Java Transport client as well as REST client.

Implemented data ingestion pipelines to feed data into OpenSearch clusters, including real-time data streaming and batch processing.

Developed and optimized data indexing and search solutions using OpenSearch, ensuring efficient and fast query performance.

Designed and created custom Splunk dashboards and reports to visualize log data and provide stakeholders with real-time insights into system performance, security, and operational metrics.

Applied Safe Agile methodologies and principles to drive the development process, collaborating with cross-functional teams, participating in Agile ceremonies, and delivering high-quality software increments in iterative sprints

Environment: Java 16, Hibernate, Spring, XML, ReactJS, JAX-RS, Spring AOP, WCAG, Spring security, Oracle, MongoDB, HTML, JavaScript, jQuery, Docker, Kubernetes, Kafka, GIT, JIRA, PL/SQL, Golang, STS, JUnit, Splunk, Maven, Jenkins, WebLogic Application Server, AWS IAM, EC2, S3, RDS, SQS, OpenSearch.

Kroger Apr 2020 – Sep 2021

Full Stack Developer

Involved in End-to-End Design, Development and Testing of Streamlets module. Actively involved in Analysis, Design, Development, System Testing and User Acceptance Testing. Followed Agile and SCRUM methodologies.

Designed and implemented the Single Page User Interface for client service module using Angular 8.

Implemented state management in Angular applications using NgRx to efficiently manage and share application state across components.

Developed applications following the Redux pattern, utilizing actions, reducers, and a store to manage application state effectively.

Implemented user authentication and authorization using Angular guards and JWT (JSON Web Tokens) to ensure secure access to specific retail features and functionality.

Used Spring Core annotations for Spring Dependency Injection, Spring MVC for Rest API’s and Spring Boot for microservices.

Refactored existing monolithic application by identifying components that needs to be transformed to Micro-services architecture, with Spring Boot based services interacting through a combination of REST, Kafka and Zuul API-Gateway.

Integrated Python scripts for data analysis and reporting, automating the extraction of sales and customer data from the database and generating weekly reports for stakeholders.

Utilizes Eclipse RCP as a Java IDE tool for creating POJO, Servlets and Data Access Objects.

Played a key role in designing the database schema for the application, including tables for products, customers, orders, and inventory management in OracleDB.

Utilized Python libraries like SQLAlchemy for database interaction, data manipulation, and query optimization.

Implemented pre-authentication and database security using Spring Security and securing application access and Spring Batch for scheduling and maintenance of batch jobs.

Implemented Spring ORM with Hibernate taking advantage of features like Annotation metadata, Auto wiring, and Collections to implement DAO layer with Hibernate Session Factory, HQL, and SQL.

Integrated middleware with NgRx to synchronize application state with the router, enabling seamless navigation and deep linking.

Involved in Microservices development using Spring Boot and deployment in Pivotal Cloud Foundry (PCF), analyzed log files using Pivotal Cloud Foundry (PCF) console.

Setup the continuous Integration (CI) process and continuous deployment (CD) jobs in Jenkins’s brew master instance, which reduces the time for the deployment of micro services.

Led the migration of client’s on-premises infrastructure to Microsoft Azure, ensuring a seamless transition to the cloud environment.

Implemented auto-scaling solutions on Azure to ensure the retail application could handle increased traffic during peak periods while maintaining high availability.

Utilized Azure services for data analytics, including Azure SQL Database, Azure Cosmos DB, and Azure Data Lake.

Integrated various Azure services, including Azure Virtual Machines, Azure App Service, Azure SQL Database, and Azure Kubernetes Service (AKS), to support different aspects of the project.

Enhanced JUnit and Mockito test scenarios to cover WCAG 2.0 criteria, expanding automated testing to include standards related to mobile accessibility and input methods.

Used GIT for version control and JIRA for bug tracking, project management and Maven as build tools.

Conducted unit testing and end-to-end testing of NgRx components and state management to ensure the reliability and correctness of state-related code

Maintained thorough documentation of Angular 8 components, services, and project structure to assist the development team and ensure knowledge transfer.

Environment: Java 8, Maven, Hibernate, Angular 8, HTML5, CSS3, Apache Kafka, Apache Tomcat, Spring, Oracle DB, Spring JDBC, Eclipse RCP, JUnit/Mockito, Karma, JMeter, Spring Boot, Selenium, Jenkins, Chef, GitHub, Microsoft Azure, AKS, RDS, Docker, WCAG, Kubernetes, PCF.

Equifax Jan 2019 – Mar 2020

Full Stack Developer

Designed and developed server-side applications using Struts and Hibernate to ensure efficient data access and manipulation.

Collaborated with cross-functional teams to create intuitive user interfaces using jQuery, Bootstrap, CSS3, JSP, and JSTL

Utilized Struts validation framework for frontend validations and implemented AJAX calls for data updates in the UI.

Spearheaded the migration of a mobile application from React Native to native platforms, ensuring a smooth transition.

Implemented additional features in Struts-based applications to enhance user experience and streamline business processes.

Implemented and optimized accessibility features within Struts applications to ensure compliance with Web Content Accessibility Guidelines (WCAG), enhancing usability for users with disabilities.

Collaborated with user experience (UX) teams to conduct usability testing with individuals having various disabilities, incorporating feedback to improve Struts-based applications' accessibility.

Developed comprehensive documentation outlining WCAG compliance strategies and implementation details within Struts projects, ensuring transparency and facilitating future maintenance.

Conducted code reviews and provided technical guidance to ensure code quality and adherence to best practices.

Extensively customized Struts framework to meet specific project requirements, enhancing its flexibility and optimizing performance.

Managed and optimized Struts configurations, including action mappings, form beans, and global forwards, ensuring efficient navigation and seamless integration.

Implemented custom interceptors in Struts to address cross-cutting concerns, such as logging, authentication, and authorization, ensuring a modular and scalable application architecture.

Enhanced error handling in Struts applications by implementing custom exception handlers, providing detailed error messages and improving debugging capabilities.

Conducted performance tuning on Struts-based applications, optimizing resource utilization, reducing page load times, and improving overall responsiveness.

Integrated Struts seamlessly with Hibernate, allowing for streamlined data persistence and retrieval. Implemented Hibernate-based DAOs within Struts actions for efficient database operations.

Enforced and followed Struts best practices across development teams, conducting regular code reviews, and providing mentoring to junior developers to ensure adherence to industry standards.

Environment: Java 8.0, Struts, Kotlin, J2EE, WCAG, React Native, Tomcat 8, Micro services, SOAP, Rest API, Node.JS, Hibernate, AWS, Kafka, Jira, Confluence CI/CD, Docker, Kubernetes, Google Cloud, Mongo DB, JPA, JavaScript, React, jQuery, Ajax, HTML5, CSS3, Bootstrap 3, Maven 3.0, GIT, GitLab JUnit, Log4j, IntelliJ, Cloud Watch, AWS Fargate.

Intergraph Corporation Hyderabad, India Sep 2012 to Oct 2017

Java Developer

Demonstrated proficiency in applying the Waterfall SDLC methodology throughout the software development lifecycle, from project initiation to deployment and maintenance.

Proficient in Linux operating system, leveraging shell scripting to automate repetitive tasks and streamline system administration processes, leading to significant time and resource savings.

Developed Bash scripts for log parsing, file manipulation, and data processing, simplifying system maintenance and troubleshooting activities.

Integrated Oracle databases with various third-party applications and data sources using tools like Oracle Data Integrator (ODI) and other custom ETL (Extract, Transform, Load) processes.

Used Spring JDBC templates for database interactions and used declarative Spring AOP transaction management.

Used jQuery APIs to implement cross-domain calls and handling JSON responses.

Designed robust and secure SOAP APIs to facilitate seamless communication between various components of the project.

Designed and implemented JPA entities, relationships, and mappings to database tables for efficient data access.

Worked on WSDL, Swagger and WADL implementing Soap services using Axis-2 and Apache CXF framework & Restful Services.

Used WebLogic server to route our JMS queue messages to different business floors and configured routes in WebLogic and used JMS in e-mail notification.

Conducted performance tuning and optimization of JBoss application servers, including adjusting thread pools, connection pools, and memory settings to improve application response times.

Involved in writing and modifying procedures, Queries, Views, and Triggers and calling them from JavaScript using the local application framework.

Used Spring Core annotations for Spring Dependency Injection, Spring MVC for Rest API’s and Spring Boot for micro services.

Focused on Test Driven Development there by creating detailed JUnit tests for every single piece of functionality before writing the functionality.

Expertise in Java development using Java 1.8, with hands-on experience in Struts 1 framework for building scalable web applications.

Used Struts Tiles Framework in the presentation tier and developed Struts action classes.

Practiced the red-green-refactor workflow of TDD, writing failing tests first, then implementing the minimum code required to pass the tests, and finally refactoring to improve code quality and maintainability.

Collaborated with cross-functional teams, including developers, testers, and project managers, to streamline code collaboration using SVN, resulting in improved code quality and project delivery.

Environment: Java 1.8, Maven, Linux, Struts, SVN, Java Script, Spring, PL/SQL, Servlets, JBoss, JSP, IBM Cognos, Oracle 10g, JMS, JDBC, Eclipse, JUnit/Mockito, Karma, JMeter, Selenium, Jenkins, SVN, Log4j, SOAP UI, SOAP API, Waterfall SDLC.

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