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Sri Lakshmi Vempati - Sr. Full Stack Dotnet Developer

[email protected]

Location: Fremont, California, USA

Relocation: United states

Visa: H1B

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Name : Sri Lakshmi Vempati Role : Sr. Full Stack .NET Developer PhNo : +1 (919)-916-3897 E-Mail : [email protected] LinkedIn:- https://www.linkedin.com/in/lakshmi967/ Professional Summary: 10+ years of experience in the IT industry, involving software design and development through the.Net Frameworks using ASP.NET Core (3.1/5/6/7/8) and .NET Framework (1.x 4.8). Developed scalable, production-ready services using C#, VB.NET, ASP.NET MVC 4/5, and ASP.NET Core Web API. Extensive experience in Core C#, ASP.Net MVC 5.0, WCF, Web services, front-end technologies like HTML5, CSS3, JavaScript, AJAX, JSP, JSTL, jQuery, Kendo UI controls, and other JavaScript libraries (jQuery, Angular Js, React js, Bootstrap and DOJO). vinay Developed highly interactive UIs using ReactJS, Angular (v2 to v18), Vue.js, Blazor (Server/WebAssembly), and Razor Designed and developed modular and scalable .NET applications using Azure services, following iterative cycles of the Spiral Model to refine and enhance features. Experience in code versioning tools like Git, GitHub and CI/CD tools like Jenkins. Experience in writing queries, Indexes, triggers, views, functions, and stored procedures in Transact SQL and PL/SQL using SQL Server, Oracle 11g/10g/9i. Good knowledge of Microservices, AWS (Amazon Web Services) working with EC2, RDS, Dynamo DB, S3, CloudWatch, and Docker. Built secure RESTful APIs using ASP.NET Core Web API, integrated with Swagger and Postman for testing and documentation. Expert in debugging an application using debugging tools provided by Visual Studio .Net framework. Experience with OOP/OOD (Object Oriented Programming and Design) like Inheritance, Polymorphism, Encapsulation, and Design patterns like Abstract factory, Singleton, in 3-Tier, N-Tier, and Service-oriented architecture (SOA) applications. Proven ability to design, develop, and maintain data-driven applications using SQL databases (SQL Server, MySQL, Oracle, MongoDB) and Entity Framework Core for data access. Proficiency in Software Development Life Cycle (SDLC) and AGILE methodologies of the development process such as requirement analysis & definition, prototyping, proof of concept, designing, coding, testing, and implementation. Handled Performance Tuning and Optimization on SSIS, with strong analytical and troubleshooting skills for quick issue resolution in large-scale production environments located globally. Expertise in Object Oriented Design, System Analysis, Software & Web Application development. Skilled in DevOps practices, including CI/CD pipelines (Azure DevOps, Jenkins), containerization (Docker, Kubernetes), and infrastructure management. Possess technical skills in .Net Technologies like WCF, MVC, Entity Framework, Web Services, LINQ, and XML. Hands-on experience in DTS, ETL, Creating Jobs, Packages, and Reporting Services (SSRS), Integration Services (SSIS), and Analysis Services (SSAS) on SQL Server Database. Experienced in cloud platforms like Microsoft Azure and AWS for scalable and secure deployments. Experienced with Vue.js for the use of interface. Excellent interpersonal and customer relational skills. Proven communication, presentation skills, and leadership qualities. Expertise in creating SQL objects like Tables, Stored Procedures, Views, Indexes, Triggers, Cursors, User-defined data types, and Functions using SQL. Practiced Agile/Scrum and Kanban methodologies, leading sprint ceremonies using Jira and tracking KPIs with dashboards. Secured API endpoints using JWT, OAuth2.0, OIDC, and Azure AD B2C for SSO/MFA across platforms. Developed unit and integration tests using xUnit, NUnit, MS Test, and mocking frameworks like Moq. Developed a completely original approach to control validation that does not require per-control XAML, while still building on the WPF validation architecture. Experience in using Language-Integrated Query (LINQ) query and retrieving data from different data sources (LINQ to Objects, and LINQ to SQL). Collaborated across distributed teams for feature delivery, code reviews, and backlog grooming Technical Skills: Programming/Scripting/Markup Languages: C#, VB.NET, Java, C, Python, JavaScript, PHP, TypeScript, PowerShell, XML, JSON, YAML, XAML, HTML, CSS, Web Technologies: .NET 3.5/4.0/4.5/6.0, ASP.NET MVC, Blazor, ASP.NET Core, MVC 5, WCF, WPF, Ajax, XML, SOAP API, REST API, Web API, Graph QL, HTML5, CSS, Angular 18/16/14/12/10/8/6, React 18, Material UI, Tailwind CSS Database/Reporting/ORM MySQL, T-SQL, SSIS, SSRS, SQL Server, Microsoft SQL Server Management studio, Oracle, OData, PL/SQL, LINQ, PostgreSQL, NoSQL, MongoDB, Cassandra, Entity Framework, Prisma, ADO.NET, Crystal Reports Cloud Services & Deployment Azure, AWS, Azure DevOps, Docker, Kubernetes, Jenkins, Terraform Operating Systems Windows, Linux Tools & Environments Visual Studio, Visual Sudio Code, IntelliJ, Rider, Excel, Atlassian Version Control Git, GitHub, TFS Testing & Quality Assurance NUnit, MS Test, Mocq Project Management & Agile Tools Jira, Agile/Scrum, Waterfall Education Details : Bachelor s of Technology from Bharath University in 2014(Computer Science and Engineering) Master s from California State University Sacramento in 2021 (Computer Sceince) Experience: Client: Kaiser Permanente - Oakland, CA. Jan 2024 Till Date Role: Sr Full Stack .NET Developer Project Overview : Worked on developing a healthcare platform that simplified how claims are processed and how patient and provider information is managed. The system helped automate eligibility checks, improved the way claims were verified and approved, and made it easier for providers and patients to access accurate information. It also supported integration with existing medical record systems and ensured all data handling met HIPAA compliance standards. Developed scalable healthcare backend services using .NET 8, C#, ASP.NET Core Web API, and SQL Server to handle patient records, claims, and provider data. Built and exposed RESTful APIs and GraphQL endpoints using ASP.NET Web API, enabling secure and efficient data exchange across systems. Built modular React.js front-end applications with Tailwind CSS and React Router, delivering responsive, accessible (WCAG-compliant) user interfaces Designed microservices with CQRS + Mediator patterns to manage claims processing, appointment scheduling, and real-time medical record updates. Integrated HL7/FHIR APIs with EMR/EHR systems, enabling secure and seamless data interoperability across providers and labs. Enforced HIPAA compliance and implemented audit logging for secure access to Protected Health Information (PHI). Automated workflows using Azure Functions and Logic Apps, streamlining reminders, claims validation, and audit reporting. Built modular components with Blazor Server/WebAssembly for patient dashboards and claims tracking, ensuring a consistent and interactive user experience across healthcare workflows. Integrated Blazor front-end with ASP.NET Core Web API and HL7/FHIR services, enabling secure real-time updates of patient and provider information. Applied WCAG accessibility standards within Blazor UI, improving usability for providers and patients while maintaining HIPAA compliance Wrote and optimized T-SQL stored procedures, triggers, and ETL pipelines with Azure Data Factory and SSIS for claims, billing, and patient analytics. Implemented event-driven architecture with Kafka and Kestrel, enabling real-time data streaming and improving system responsiveness. Wrote unit and integration tests with xUnit, NUnit, and Moq, integrated into Azure DevOps pipelines for CI/CD. Provisioned infrastructure with Terraform and deployed services on Azure Kubernetes Service (AKS) using Docker and Helm, ensuring scalability and resilience. Applied SOLID principles, Factory Pattern, and Dependency Injection for maintainable, testable service design. Optimized data retrieval and performance by implementing LINQ queries on SQL Server and MongoDB, reducing query response time by 30 40%. Provisioned infrastructure with Terraform and deployed services on Azure Kubernetes Service (AKS) using Docker and Helm, ensuring scalability and resilience. Configured monitoring and observability with Prometheus, Grafana, and Azure Application Insights to track microservices and pipelines. Collaborated with cross-functional teams (business analysts, clinicians, IT ops) using Jira and Confluence, ensuring alignment with healthcare workflows. Collaborated within Agile/Scrum teams using Jira for sprint planning, backlog management, and ensuring on-time delivery. Managed version control and peer collaboration using GitHub, conducting code reviews and mentoring junior developers to improve team productivity and code quality. Environment:- .NET 8, C#, ASP.NET Core Web API, React.js, SQL Server, Cosmos DB, Azure Kubernetes Service (AKS), Azure Service Bus, Apache Kafka, Azure Functions, Logic Apps, Azure Data Factory, SSIS, Terraform, Docker, Helm, Azure DevOps, WPF, Jira, Confluence. Client: American Express - New York, NY. Feb 2022 Dec 2023 Role: Sr Full Stack .NET Developer Project Overview I worked on improving the systems that manage credit card transactions and customer accounts. The project focused on making payments faster, more secure, and easier to track. We also modernized older applications, added better fraud checks, and built features to help both customers and internal teams handle disputes and reporting more smoothly. Responsibilities: Involved in all phases of SDLC including requirement analysis, design, development, testing, deployment, and production support in a financial application environment. Applied Domain-Driven Design (DDD) to align system modules with payment workflows, fraud detection, and compliance rules. Developed and consumed RESTful APIs using ASP.NET Core Web API, enabling secure communication between internal financial systems and third-party services. Built dynamic, responsive UIs using Angular 16+, HTML5, CSS3, ensuring cross-browser compatibility and ADA compliance for accessibility. Led migration of legacy ASP.NET MVC 5 and WebForms applications to .NET 8 and Angular, improving performance, maintainability, and scalability. Designed and implemented N-tier APIs using ASP.NET Core to support credit card transactions, customer onboarding, and dispute management. Developed three-tier applications with MVC and Singleton design patterns to ensure scalability and reusability of financial service components. Created and optimized T-SQL and PL/SQL stored procedures, triggers, and functions to handle transaction processing, fraud detection, and settlement reporting. Applied CQRS and event sourcing patterns to decouple read/write operations for payment transactions, improving system resilience. Worked with Azure SQL, SQL Server 2021, and PostgreSQL for data storage, while integrating Cosmos DB for real-time transaction analytics. Developed SSIS and Azure Data Factory pipelines for ingesting and transforming high-volume transaction and account data. Implemented asynchronous messaging using RabbitMQ, Azure Service Bus, and Kafka to support large-scale event-driven payment processing. Designed and tested SOAP/WCF services for integration with legacy settlement and reconciliation systems. Automated financial workflows such as fraud alerts, chargebacks, and compliance checks using Azure Functions and AWS Lambda. Integrated AWS services (Lambda, S3, DynamoDB, RDS, CloudWatch) with Azure services (Functions, Logic Apps, AKS) for hybrid cloud deployments. Automated financial workflows such as fraud alerts, chargebacks, and compliance checks using Azure Functions and AWS Lambda. Collaborated with cross-functional teams (business analysts, compliance officers, and payment architects) to deliver solutions aligned with financial regulations. Deployed microservices to Azure Kubernetes Service (AKS) and AWS Elastic Beanstalk/EKS using Docker, Helm, and Terraform.Implemented unit testing with NUnit to ensure code quality, reliability, and maintainability. Integrated OAuth authentication to secure Participated in Agile (Scrum) methodologies,using Jira and Confluence for progress tracking. Implemented JWT- and OAuth2-based authentication flows to secure APIs handling sensitive financial data. Applied design patterns (Factory, MVC, MVP) and SOLID principles to enhance maintainability of payment systems. Developed GIS-based fraud monitoring modules by integrating location-based services to detect suspicious transaction activities. Environment: ASP.NET Core, C#, MVVM, Razor Views, LINQ, Entity Framework, JSON, RESTful APIs, Kafka, Microsoft Azure, MySQL, Git, JIRA, NUnit, OAuth, IIS, Agile, Scrum, JIRA, HTML5, DHTML, CSS3, Bootstrap, Angular, jQuery. Client: Costco - Issaquah, WA. Jan 2021 -Oct 2021 Role: .NET Developer Project Overview:- At Costco IT, I worked on improving retail applications that supported membership, sales, and supply chain operations. The project focused on modernizing older systems, building new APIs and dashboards, and moving applications to the cloud. It helped make order processing, inventory management, and reporting faster, more accurate, and easier for both customers and internal teams. Responsibilities: Wrote unit tests for application components using frameworks like Mockito to ensure code quality and functionality. Utilized version control systems like TFS for code management and collaboration. Leveraged LINQ for cleaner and more concise data querying within .NET applications. Utilized AWS cloud services such as EC2, S3, RDS, and Lambda for scalable and secure application deployment and data management. Enhanced user interaction and implemented asynchronous functionalities using jQuery and Ajax. Designed and implemented data access layers utilizing ADO.NET for interaction with various databases, including Oracle. Created efficient and reusable queries, stored procedures, and functions to optimize data retrieval and manipulation. Built user-friendly desktop applications using WPF for a seamless user experience. Worked on robust applications using VB.NET and C# within the .NET Framework. Built and consumed RESTful APIs using ASP.NET Core Web API for membership management, order processing, and vendor systems. Developed responsive front-end applications with Angular 12+, TypeScript, HTML5, and CSS3, enhancing internal and customer-facing portals. Deployed applications on Azure Kubernetes Service (AKS) with Docker and Helm, leveraging Azure DevOps pipelines for CI/CD automation. Designed and implemented ETL workflows using Azure Data Factory and SSIS to process large volumes of sales, warehouse, and supplier data. Implemented event-driven architecture using Azure Service Bus and Event Hubs, enabling real-time inventory and sales updates. Created Power BI dashboards to provide executives with insights into sales trends, membership activity, and inventory performance. Participated in Agile Scrum ceremonies, contributing across the SDLC including requirements gathering, design, development, testing, and deployment. Defined application layouts and user interfaces using XAML for efficient development and maintainability. Developed dynamic and responsive applications using HTML, CSS, and JavaScript. Implemented logging frameworks (e.g., log4Net) for application monitoring and troubleshooting. Developed reports using SSRS for data visualization and analysis. Environment: VB.NET, Oracle, LINQ, WPF, XAML, HTML, CSS, JavaScript, jQuery, Ajax, ADO.NET, AWS, EC2, S3, RDS, Lambda, log4Net, Mockito, SSRS, TFS, Apache. Client: PayPal Hyderabad, India. Nov 2017 Jul 2020 Role: .NET Developer Responsibilities: Utilized Source control systems like VSS for version control and collaboration. Implemented server-side logic and business rules in C#. Leveraged ActiveMQ or similar message queuing technologies for robust asynchronous communication between services. Wrote clean, maintainable, and efficient code in C# adhering to best practices and design patterns. Consumed and produced SOAP web services using industry-standard protocols and WSDL contracts. Utilized ADO.NET for efficient data access and manipulation from relational databases (e.g., SQL Server). Employed jQuery for dynamic web page interactions and AJAX functionalities. Implemented application logging with frameworks like NLog for troubleshooting and monitoring purposes. Built user interfaces using a combination of HTML, CSS, and JavaScript. Created and maintained SQL Server databases, including design, optimization, and security. Developed and used stored procedures for complex data retrieval and manipulation within the database. (Note: PL/SQL is typically used with Oracle databases, not SQL Server). Developed ASP.NET MVC web applications implementing separation of concerns using the Model-View-Controller (MVC) pattern. Used XML for data exchange and configuration management. Adopted Agile methodologies for iterative development and continuous improvement. Environment: ASP.NET MVC, C#, ADO.NET, ActiveMQ, VSS, SQL Server, PL/SQL, jQuery, XML, Agile, NLog, SOAP, WSDL. Client: KPIT Technologies Pune, India. Jul 2014 Sep 2017 Role: Software Engineer Responsibilities: Followed secure coding practices to mitigate vulnerabilities and ensure application security. Developed and consumed SOAP web services using WSDL for data exchange with external systems. Utilized Visual Studio as the primary development environment for coding, debugging, and project Utilized ADO.NET for efficient data access, manipulation, and interaction with Microsoft SQL Server databases. Created user-friendly web interfaces using HTML, CSS, and JavaScript. Enhanced user interaction and functionality using modern JavaScript frameworks (e.g., jQuery). Followed Agile development methodologies (e.g., Scrum) for iterative development and continuous improvement. Wrote unit tests using MS Test to ensure code quality and functionality. Designed, developed, and maintained web applications using C# and ASP.NET MVC, following best code reusability, maintainability, and scalability practices. Created UML diagrams (e.g., Class Diagrams, Sequence Diagrams) to document system design and functionalities. Enhanced website functionality for quicker page load speeds and improved user engagement. Environment: C#, ASP.NET MVC, ADO.NET, Visual Studio, JavaScript, CSS, SOAP, WSDL, MS SQL, HTML, UML Diagrams, MS Test. Keywords: cprogramm csharp continuous integration continuous deployment user interface javascript business intelligence sthree database active directory information technology microsoft mississippi procedural language California New York Washington