Venkata Raghavendra Tejaswi Devaguptapu
Irving
Summary
Dynamic Senior Backend Developer with a proven track record at SAP Labs, excelling in microservices implementation and cloud deployment. Expert in Java and Spring framework, I lead teams to deliver high-quality solutions, enhancing API management and driving agile development. Passionate about leveraging software architecture to achieve impactful results.
Overview
1
1
Certification
Work History
Senior Backend Developer/Team Lead
Cognitive Data Intelligence
- Clients: Walmart Labs (CA)
- Duration: 12/2024 - Present
- Returns Application Platform (RAP) Deals with all the returns across all the locations of Walmart either via store, web application or Mobile application. Handles loads of 30 Million on an average day. RAP is one of the Power house projects of Walmart. Every return ever done in Walmart has to pass through RAP application.
- Handling Full stack design and development of UI, Backend Services and Data Base.
- Walmart RAP Back End Micro Services developed in the Java,Kotlin and Scripts and Cron Jobs Developed using Python.
- Involved in Enhancing the Back end Services like Return Eligibility, Fraud Engine, Dispute Engine.
- Implemented one of the key Features of Lost in transit/ Lost after Delivered in the Returns application flow handled the complete Feature by leading a team of 8 Developers and Deployed successfully to the Production.
- Performing code Reviews on the Regular Basis for most of the Pull Request in a Sprint/Takt.
- Requirement Gathering from Product, Business and providing LOE, HLD, LLD, Task Breaks up, Story/Card creations, Epic Handling, Execution, Test Cases documentation, Automation Scripts in Test NG Framework, Integration testing, E2E testing, CRQ creations and Production Roll out, Validation in Production Environment, Scaling the API in a staggered Manner to full potential.
- Leveraging the Development with GitHub Copilot and Involved in hackathon initiative to Bring in AI Adaptation in the Teams and Projects.
- E-mail, SMS and PUSH notification to customer and Label Generation for the Corresponding return, Handling Different carriers like Fedex, Lobo etc.
- Inter Service Communication happens via Kafka Messages in an Asynchronous Way.
- Agile Methodology
- Java 8/17
- Kotlin
- Python
- J2EE
- Java Script
- Rest API
- Spring Framework
- Spring boot
- Micro Services Architecture
- Rest API
- GIT Hub
- JUnit
- Maven
- Cassandra
- Apache Kafka
- Spring Cloud (Netflix APIS)
- Cassandra
- JIRA
- Jenkins
- Apache CXF
- GitHub copilot
- Walmart LLM's
- Training LLM's
- Azure SQL
- Docker
- Kubernetes
- Splunk
- Open Observe
- GCP Cloud
- Azure Cloud
Senior Backend Developer
Cognitive Data Intelligence
- Clients: Walmart Labs (CA)
- Duration: 07/2024 - 12/2024
- Merchant Payments is a Critical Part of the Seller center in Walmart. Merchant Portal Payments deals with paying the settlements to seller on weekly basis and Interacts with different payments gateways to seamlessly accept the Seller payment details in a way that transactions happens seamlessly between Walmart and Seller.
- Handling payments, Insurance, seller settlement Backend Services and Data Base.
- Walmart Merchant Seller Back End Micro Services developed in the Java,Kotlin and Scripts and Cron Jobs Developed using Python.
- Identify and address performance bottlenecks and optimize applications for speed and efficiency.
- Performing code Reviews on the Regular Basis for most of the Pull Request in a Sprint/Takt.
- Migrating the Cron Jobs from legacy OneOps system to Cloud Platform.
- Using Swagger Framework, actualizing the Restful API and Swagger gives the rich UI to test API.
- Developed Micro services based API using Spring Boot and Spring Data. Product runs on Design time and Runtime Modules. Runtime Modules Run Directly on AZURE.
- Implemented data security measures using Azure policies, IAM roles, and encryption mechanisms, ensuring data privacy and compliance.
- Managed Docker Orchestration and Docker Containerization using Kubernetes.
- Secured the API's by implementing Oauth2 token-based authentication/authorization scheme using Spring Security.
- Leveraging Devops Tools like GitHub Advance security, CI/CD pipelines for continuous Integration and Deployment, and GitHub Repositories for Version Controlling.
- Used Git/GitHub to maintain the version of the files and took the responsibility to do the code merges and creating a new branch when new feature implementation starts.
- Expertise in writing Complex SQL Queries and Indexing the tables to optimize the DB performance.
- Agile Methodology
- Core Java
- Java 11
- Kotlin
- Python
- Angular
- J2EE
- Rest API
- Bootstrap
- JavaScript
- NodeJS
- Spring Cloud
- Rest API
- Spring Security
- AWS
- OAuth
- JUnit
- Maven
- Restful
- Micro services
- Cassandra
- Apache Kafka
- Spring Cloud (Netflix APIS)
- Cassandra
- JIRA
- Jenkins
- Payment Gateways (Paypal, Pingpong, Payoneer, Hyperwallet etc)
Application Architect/Senior Developer
SAP Labs
- Clients: British Petroleum (NY)
- Duration: 01/2022 - 06/2024
- British Petroleum is a SAAS application deployed in SAP BTP (Business Transformation Platform) handles the Sales and Analytics part of the Bigger Portfolio of British Petroleum.
- Completed Architectural curriculum with SAP for a Period of 1 year and got certified as an SAP Cloud Architect.
- Handling Full stack design and development of UI, Backend Services and Data Base.
- As an Architect Established and enforce coding standards and best practices to maintain high code quality.
- Worked closely with product managers, designers, and other stakeholders to translate business requirements into technical solutions.
- Well versed in creating TAM diagrams to explain the architecture to the teams.
- Identify and address performance bottlenecks and optimize applications for speed and efficiency.
- Creating and Maintaining ACW and periodically review them along with the developers.
- Performing code Reviews on the Regular Basis for most of the Pull Request in a Sprint/Takt.
- Using Swagger Framework, actualizing the Restful API and Swagger gives the rich UI to test API.
- Integrated Spring Boot Micro services with Apache Kafka for Asynchronous messaging.
- Notification Service Developed to Notify clients for Anomaly's are Designed and developed using Apache Kafka Platform.
- Developed and maintained Apache Kafka topics, producers, and consumers to ensure high-throughput and fault-tolerant messaging systems.
- Built a real-time stream of data pipelines using Apache Kafka, used Consumer API, Streams API, and Connector API.
- Developed Micro services based API using Spring Boot and Spring Data. Product runs on Design time and Runtime Modules. Runtime Modules Run Directly on Hyper scalers Like AWS, AZURE, GCP.
- Responsibilities here are setting up New Asset in Cloud for Both Dev, QA and Production Teams.
- Asset management via MultiCloud Dashboard and Managing the Security Groups and Roles across all the hyper scalers.
- Automated deployments to EC2 instances via AWS CDK scripts streamlining the process, making it easier to manage and update our services compute layer without manual intervention.
- Configured and managed Amazon Elastic Load Balancers (ELBs) to ensure high availability and traffic distribution across multiple EC2 instances in diverse Availability Zones.
- Automated Scripts to run the OS patches regularly to fix the vulnerabilities and fixing the Configuration issues and upgrading to Golden images.
- Implemented data security measures using S3 bucket policies, IAM roles, and encryption mechanisms, ensuring data privacy and compliance.
- Expertly utilized AWS Lambda in conjunction with Amazon API Gateway to construct resilient RESTful APIs, catering to the diverse needs of web and mobile applications.
- Managed Docker Orchestration and Docker Containerization using Kubernetes.
- Secured the API's by implementing Oauth2 token-based authentication/authorization scheme using Spring Security.
- Leveraging Devops Tools like GitHub Advance security, CI/CD pipelines for continuous Integration and Deployment, and GitHub Repositories for Version Controlling.
- Used Git/GitHub to maintain the version of the files and took the responsibility to do the code merges and creating a new branch when new feature implementation starts.
- Expertise in writing Complex SQL Queries and Indexing the tables to optimize the DB performance.
- Agile Methodology
- Core Java
- Java 11
- Python
- Angular
- J2EE
- Kotlin
- HTML5
- CSS3
- JQuery
- Ajax
- Rest API
- Bootstrap
- JavaScript
- NodeJS
- Spring Framework
- Spring boot
- Spring Cloud
- Rest API
- Spring MVC
- Spring IOC
- Spring Boot
- Spring Security
- AWS
- OAuth
- JAX-RS
- GIT
- JUnit
- AWS
- Maven
- Restful
- Micro services
- Cassandra
- Cloud Foundry
- AWS EC2
- Fargate
- ECS
- Lambdas
- Apache Kafka
- Spring Cloud (Netflix APIS)
- Cassandra
- WebSphere
- JIRA
- Jenkins
Senior Developer
SAP Labs
- Clients: NED Bank
- Duration: 09/2019 - 12/2021
- Nedbank Group is a financial services group in South Africa offering wholesale and retail banking services as well as insurance, asset management, and wealth management Nedbank's primary market is South Africa.
- Responsible for designing and implementing Enterprise Backend as a Service.
- Completed Architectural curriculum with SAP for a Period of 1 year and got certified as an SAP Cloud Architect.
- Handling Full stack design and development of UI, Backend Services and Data Base.
- Implemented Anomaly Deduction Login using the Python Scripts and SAP AI components.
- Designed and developed the UI components using JSP, HTML, CSS, and Angular.
- Developed API's to read and publish data from Elastic Search cluster using native Java Transport client as well as a REST client. Worked on Spring Integration with the Elastic Search.
- Responsible for creating an instance on Amazon EC2 (AWS) and deployed the application on it.
- Involved in creating EC2 instances and installed required configurations and applications on it and created S3 buckets for storing object-level data into it.
- 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, and maintenance will be very easy.
- Secured the API's by implementing an OAuth2.0 token-based authentication/authorization scheme using Spring Security.
- Worked on developing RESTful endpoints to cache application-specific data in in-memory data clusters like REDIS and exposed them with RESTful endpoints.
- In our project, we get the updated event messages into the Apache Kafka queue. From Apache Kafka, we have a separate intermediate service called Action processor, which picks the events from Apache Kafka and calls respective Micro service.
- Built a real-time stream of data pipelines using Apache Kafka, used Consumer API, Streams API, and Connector API.
- Developed Single Page Application and structured the JavaScript code using Angular.
- Used AWS SDK for connection to Amazon S3 buckets and EC2 to deploy Docker containers with Micro services architecture.
- Implemented multithreading and concurrency features in Java 11+ to optimize performance and enhance responsiveness in a high-demand application.
- Developed various helper classes needed following Core Java multi-threaded programming and Collection classes.
- Handling Security Related Topics (Authentication, Authorization, Validations, open-source library vulnerabilities).
- Spring security is used for authorization/authentication, session fixation, clickjacking, cross-site request forgery.
- Successfully implemented and maintained product catalog and inventory management systems platform using Spring Boot and Apache Cassandra.
- Integration and Deployment, and GitHub Repositories for Version Controlling.
- Expertise in writing Complex SQL Queries and Indexing the tables to optimize the DB.
- Agile Methodology
- Java 1.8
- J2EE
- Python
- Angular
- HTML5
- CSS3
- JavaScript
- JQuery
- Ajax
- Hibernate
- Spring
- XML
- JSP
- JAX-RS
- Spring AOP
- Spring Security
- Oracle
- MongoDB
- JSP
- Micro Services
- AWS IAM
- EC2
- S3
- RDS
- SQS
- Docker
- GIT
- JIRA
- STS
- JUnit
- Log4J
- Maven
- Jenkins
- Cloud Foundry
- Apache Kafka
- DB2
Senior Developer
SAP Labs
- Clients: KPMG
- Duration: 07/2012 - 08/2019
- KPMG is a global network of professional services firms providing audit, tax, and advisory services, KPMG offers a range of services including audit, tax, and advisory, which includes helping clients with issues like climate change, technology, and economic growth.
- Solely responsible for designing and implementing EMDX to CSN and OPEAPI to CSN converter Libraries which plays a crucial role in overall CAP Model.
- Solely responsible for Draft Capabilities in CAP Model.
- Leveraged the Expertise on the REST, ODATA and GRAPHQL Protocols.
- Worked on the A sync Brokers like SAP Event Mesh, solace MQ and Apache Kafka.
- Different database technologies including SQL and NoSQL.
- Involved in (SDLC) Requirement Analysis, Design and Develop and Implement the application using J2EE technology.
- Widely used Java 8 (Executor framework, Lambdas, Streams, Functional Interfaces, Concurrency package) & Collection framework for developing multi-threaded applications.
- Interacting with Different stack holders of CAP Model to Develop a Unified Solution which customers can adopt.
- Handling Both Customer/Internal Incidents for CAP in the above-mentioned topics and libraries.
- Visited Customer location to support their Release of Product Build Using CAP Model.
- Server-side validations are achieved using Spring Validation framework.
- Deployed and monitored web services using Spring Cloud Foundry Managed Domains and Routes with Spring Cloud Service Registry.
- Implemented Quartz scheduler to execute batch programming using Spring Batch.
- Writing the Code, unit testing using Junit5 and Integration testing using spring integration.
- Writing the micro services components using spring cloud.
- Writing business rules using drools engine and writing integration tests for that.
- Writing and configuring the Jenkins set-up for CI/CD process.
- Have daily calls with business heads to understand business requirement thoroughly.
- Java
- Python
- Spring boot
- ReactJS
- CAP
- Spring Eureka
- NodeJS
- Spring boot
- AWS SQS
- SNS
- Lambdas
- RabbitMQ
- Mongo DB
Senior Java Developer
Infosys Technologies Limited, India
- Clients: LTCP, BENEFEDS US
- Duration: 01/2007 - 07/2012
- The Federal Long Term Care Insurance Program (FLTCP) is a volunteer program established for federal Civilian, Uniformed Service Members to serve an unmet health Care Needs.
- Involved in designing UI, development, unit and system testing of the application based on the defined change request or defect use case specifications.
- Analysing requirements for Development and break-fixes to the application.
- Preparing analysis document.
- Preparing test cases and test data.
- Unit testing, Integration testing and User Acceptance testing.
- Developed Tools and Macros to Automate the Process in BOTS (Business On time Tickets) and Development Process.
- Interact with the Onsite co-coordinator and with the client on various forums to discuss the status of the task, clarify any queries regarding the functionality etc.
- System (Interface Testing) Quality control for each phase of SDLC.
- Security Testing for the Application.
- Addressed various production issues faced by application users time to time.
- Preparing the documents for knowledge transitions.
- Mentoring the team in understanding the business (domain knowledge), reviewing and validating the tickets before sending them to onsite for production promotion.
- Developed the single page application following Agile Scrum, participated in daily standups, sprint reviews, Kickoffs and used Jira for project management.
- Involved in Software Development Life Cycle for gathering requirements, Analyzing, Designing, Developing and Testing application using agile methodology.
- Designed the application using J2EE and Java Framework design patterns like spring, Singleton, DAO.
- Successfully integrated Spring Boot with Apache Camel to create efficient and robust messaging solutions.
- Spring MVC
- Spring boot
- Maven
- Java 8
- React JS
- Web Services (SOAP & REST)
- MySQL
- Java Server Pages (JSP)
- Cucumber
- AJAX
- JUnit
- Mockito
- Maven
- Log4j
- React JS
- DB2
Education
B-Tech - Computer Science
Jawaharlal Technological University
01.2006
Skills
- Software architecture
- Agile development
- Microservices implementation
- API management
- Cloud deployment
- Java development
- Spring framework
- Python scripting
Technology
Java, Python, Java Script, SAPUI5, SQL, Kotlin, Java (1.5/1.6/1.7/1.8), J2EE, JSP, JDBC, Servlets, XML, JUnit, Log4j, Hibernate, Servlets, JSP, Struts, Spring Boot, JDBC 3.0, Spring MVC, Spring IOC, Spring Boot, Spring Security, Spring Data JPA, Spring AOP, Spring Web Flow, PHP, HTML 4.0/5, Java Script, JQuery, Angular JS, React JS, XML/JSON, Node JS, HTTP/S, CSS 2/3, Servlets, AJAX, REST, OData, SOAP, JSP, MySQL, IBM DB2, Oracle DB, S3, DynamoDb, Redis, Tomcat, Cassandra, Dynamo DB, PostgreSQL, MongoDB, MySQL, Zookeeper, Hana, Azure SQL, JPA, Spring Data JPA, RabitMQ, Apache Kafka, Redis, Docker, Kubernetes, Bash, Postman, IntelliJ, Maven, Gradle, SOAP UI, XML, JSON, XSD, Git, Gerrit, Maven, Jenkins, GitHub, Docker, JMeter, Sirius, PPMS, FOSS, Check Marx, Fortify, Sonar Qube, white source, Black duck, Coverity, Jira, GHAS, Code Editors, SVN, IBM RAD, JUnit, Log4J, Cucumber, Selenium, JUnit, SoapUI, Putty, Mockito, Pivotal Cloud Foundry, AWS(EC2,S3,Lambda,ELB,DynamoDB,Cloud Front, Cloud Watch, API Gateway, Redis Cache, Secret Manager, IAM Fargate), GCP, Azure(LB,VPN Gateway, CDN, Azure Policy), SAP Business Technology Platform Cloud Foundry, Jenkins, GitHub copilot, GitHub, Elastic search, Kibana, AWS CLI, GOF, SAGA, Event Sourcing, CQRS, Resilient Patterns
Certification
- SAP Certified Cloud Architect (2022)
- SAP Certified Product Security Expert (2023)
- Walmart Hackathon – AI Adoption & LLM Integration (2024)
Timeline
Senior Backend Developer/Team Lead
Cognitive Data Intelligence
Senior Backend Developer
Cognitive Data Intelligence
Application Architect/Senior Developer
SAP Labs
Senior Developer
SAP Labs
Senior Developer
SAP Labs
Senior Java Developer
Infosys Technologies Limited, India
B-Tech - Computer Science
Jawaharlal Technological University
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