Raja Shanmugam

• Worked as a Full stack developer at Optus, focusing on the My Optus mobile app.
• Primarily engaged in Node.js API development, contributing to 80% of the backend architecture,and 20% UI development for seamless user experiences.
• Successfully contributed to the development and maintenance of a microservices-basedapplication, showcasing expertise in crafting APIs and leveraging technologies such as Kafka, Redis,and Nest.js.
• Implemented React for the webview component, ensuring a responsive and user-friendly interface.
• Demonstrated proficiency in containerization technologies, including Docker, Kubernetes, and OpenShift, for efficient deployment and scaling of applications.
• Applied expertise in creating and optimizing CI/CD pipelines to streamline the software

development life cycle.

• Translated Figma prototypes into React UI components, ensuring pixel-perfect representation of design elements.
• Utilized protobuf for efficient message passing through Kafka topics, enhancing the overall communication structure within the application.
• Demonstrated my proficiency in developing innovative features named Call Translate and Call Notes, utilized by millions of end users within the Optus mobile app.
• Collaborated closely with architects to craft architecture flowcharts, sequence diagrams, and comprehensive documents for each Architectural Decision Record (ADR).
• Applied in-depth knowledge of JWT (JSON Web Tokens) and developed common modules for reuse across multiple project modules.
• Implemented unit testing practices using Jest, contributing to the overall code quality and reliability.
• Operated within an Agile development model, actively engaging with product owners and business analysts in requirement discussions to align development efforts with business objectives.

• As a Full Stack Developer at Workplace, SkillsRoad, Noticeboard and HCL, actively involved in the development and maintenance of the SWS application
• Proficient in building dynamic and responsive user interfaces using React and TypeScript, ensuring a seamless and interactive user experience
• Successfully managed the end-to-end development lifecycle of major projects, ensuring timely delivery and adherence to quality standards
• Integrated RESTful APIs to fetch and update data, enhancing the overall user experience
• Established comprehensive Jest test suites, ensuring code reliability and reducing post-release bugs
• Played a key role in AEM front-end development, specializing in crafting dynamic and responsive user interfaces
• Collaborated closely with AEM backend developers to seamlessly integrate React components into AEM projects
• Utilized best practices for software development, including version control using Git, continuous integration and deployment (CI/CD), and automated testing
• I have familiarity with AWS CDK (Cloud Development Kit) for infrastructure as code and automation, enabling the efficient deployment and management of AWS resources
• Worked collaboratively with cross-functional teams, including product managers, designers, and other developers, to deliver high-quality software products on time and within budget
• Integrated Apollo Client with the application to communicate with GraphQL server, wrote GraphQL queries and mutations, and optimized data fetching using caching.
• Experience designing and implementing APIs in NodeJS within cloud environments
• Designed and implemented RESTful APIs using Node.js and Express.js to provide data to client-sideapplications.
• Played a pivotal role in the conceptualization and execution of the Staff Noticeboard project, designed to enhance internal communication within the DOE
• Contributed expertise to various other DOE projects and collaborated with cross-functional teams, including backend developers and UX/UI designers, to ensure seamless integration of frontend components into comprehensive DOE applications
• Established and enforced coding standards, conducted regular code reviews, and ensured the adoption of best practices within the development team.

• As a Full Stack and Cloud Engineer at Scorpion, ICD50, EMCOST, and EMSTAFF applications, I played a crucial role in their development and deployment
• I took the lead in creating React applications from scratch, developing various common components for reusability across different parts of the applications
• My proficiency lies in ReactJS, Redux, Apollo Client, Styled Components, and Hooks, enabling me to build robust and efficient user interfaces
• Leveraging React hooks, I effectively managed state, lifecycle, and side effects, optimizing performance through memoization of expensive computations
• I have experience in developing components in both Functional and Class Components, using Redux for effective client-side data management
• In the backend, I designed and developed APIs in NodeJS using GraphQL and ExpressJS, working closely with the Architect to ensure scalability and efficiency
• MongoDB was the database of choice for handling database operations in these applications
• By following Figma designs, I created UI screens in React and integrated them with APIs using Apollo Client for seamless data interaction
• My skillset includes strong expertise in implementing authentication using Azure B2C, ensuring secure user access to the applications
• Successfully orchestrated the migration of a Java application from on-premise infrastructure to AWS cloud, demonstrating proficiency in adapting to cloud-based environments
• I set up CI/CD pipelines using Bamboo CI/CD, including the configuration of build and deployment stages
• I also wrote bootstrap files and scripts to automate the build and deployment processes on AWS EC2 Instances, ensuring consistent and efficient application delivery.

• Worked on timesheet based web application tailored to efficiently track the activities of operational staff members at Aurizon
• Primarily engaged in Node.js API development, contributing to 80% of the backend architecture,and 20% UI development for seamless user experiences.
• This application revolutionizes crewmembers' experience by enabling them to easily sign in and sign off their shifts and modify their shifts.
• Designed and implemented intuitive supervisor UIs and workflows to empower people leaders at Aurizon to effortlessly monitor crew timings, approve or reject timesheets, and enable administrators to efficiently process payrolls
• Worked on Vue.js, a progressive JavaScript framework, to craft dynamic and responsive user interfaces, ensuring a seamless user experience for the frontend of the timesheet web application
• Developed a robust Common JWT Authentication Module, ensuring secure and streamlined user authentication across the entire application
• This module effectively restricts routes based on user permissions, enhancing data security
• Demonstrated expertise in API development using Swagger 3.0, ensuring consistent and well-documented APIs for smooth integration and collaboration between different components of the application
• Showcased proficiency in NodeJS framework, leveraging the Sequelize ORM for defining models and implementing CRUD operations, enhancing database management and data handling capabilities
• Pioneered the design and implementation of event-driven APIs in Node.js, adopting cutting-edge technologies like Kafka for event streaming and message-based communication in a distributed microservices architecture
• This approach ensures seamless communication and data flow between different components
• Held responsibility for publishing messages to Kafka topics, skillfully managing serialization and topic configuration for optimized performance and data consistency
• Expertly invoked third-party APIs to fetch shift details for crews, efficiently persisting the data into the database, and promptly publishing messages into Kafka topics to facilitate real-time updates and data synchronization
• Demonstrated mastery in creating a separate Rest API using Typescript in NodeJS for listening to messages from topics and invoking third-party APIs to efficiently update the quintiq system, contributing to an integrated and smooth workflow.

• Worked as a Front end developer in ExtJS 4.2 and Angular
• Designed the UI screens for DataSelector and Player as per Wireframe me given by the clients in ExtJS and Sass theming
• Implementing the application's routing, navigation, and state management using Angular Router and NgRx
• Developing and consuming RESTful APIs and integrating them with the application using HTTP requests and Observables
• Reskinned the UI for Report Builder in ExtJS SASS theming
• Worked on Angular Material and Polymer 2 to designing the screens and integrating the data flow with RxJS
• Worked on Spring MVC for creating the REST API
• Writing unit and integration tests using Jasmine, Karma, and Protractor to ensure code quality and reliability
• Debugging and troubleshooting issues in the application using the browser's developer tools and other debugging tools
• Worked on amCharts JavaScript API for Charting in Player module
• Develop, maintain and release web related UI and prepare systems design documentation by applying the company, industry standards
• Experience in system analysis, architecture, development, testing and maintenance of web applications
• Implement the React application and migrated existing ExtJS based application into React.
• Created many common components in React and pushed into NPM repositories to reuse across different projects.
• I have handled deployments and builds using CI/CD tools like Bamboo
• Showing Demo to the Product Owner for each Sprint end, Attending Daily Standup call, PO meetings, Tech Owner meeting, Sprint Planning.