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Sri Lakshmi Vempati - .Net Developer

[email protected]

Location: Aubrey, Texas, USA

Relocation: Yes

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 Senior developer Full Stack Developer Over 10+years of experience in the IT industry specializing in software design, development, and implementation using .NET technologies, including ASP.NET Core (3.1/5/6/7/8) and .NET Framework (1.x 4.8). Strong experience in developing scalable, production-ready applications using C#, ASP.NET MVC (4/5), and ASP.NET Core Web API. Extensive expertise in Core C#, ASP.NET MVC, WCF, Web Services, and front-end technologies including HTML5, CSS3, JavaScript, AJAX, JSP, JSTL, jQuery, Kendo UI, Bootstrap. Experienced in developing modern interactive user interfaces using ReactJS, Angular (v2 v18), Vue.js, Blazor (Server/WebAssembly), and Razor. Proven ability to design and develop modular, scalable, and cloud-enabled applications using Microsoft Azure services and following iterative development models such as the Spiral Model. Hands-on experience in designing and implementing Microservices architecture and building secure RESTful APIs using ASP.NET Core Web API, with Swagger and Postman for API testing and documentation. Strong expertise in Object-Oriented Programming (OOP) and Object-Oriented Design (OOD) concepts including Inheritance, Polymorphism, Encapsulation, and design patterns such as Singleton and Abstract Factory, applied in 3-Tier, N-Tier, and Service-Oriented Architecture (SOA). Extensive experience with database design and development, including writing complex SQL queries, stored procedures, triggers, views, indexes, and functions using SQL Server, Oracle (11g/10g/9i), MySQL, and MongoDB. Proficient in Entity Framework Core, LINQ (LINQ to Objects, LINQ to SQL), and building data-driven enterprise applications. Experience in ETL processes and database integration, including SSIS, SSRS, SSAS, DTS, and performance tuning for large-scale production environments. Strong experience with cloud platforms including Microsoft Azure and AWS, working with services such as EC2, RDS, DynamoDB, S3, and CloudWatch for scalable and secure deployments. Skilled in DevOps practices, including CI/CD pipelines using Azure DevOps and Jenkins, containerization with Docker and Kubernetes, and version control using Git and GitHub. Experienced in implementing application security using JWT, OAuth 2.0, OpenID Connect (OIDC), and Azure AD B2C for authentication, authorization, and SSO/MFA solutions. Hands-on experience in unit and integration testing using xUnit, NUnit, MSTest, and mocking frameworks such as Moq. Strong knowledge of Software Development Life Cycle (SDLC) and Agile methodologies, including Scrum and Kanban, with experience leading sprint ceremonies using Jira and tracking KPIs with dashboards. Expertise in debugging and performance optimization using Visual Studio debugging tools, with strong analytical and troubleshooting skills. Excellent communication, leadership, and collaboration skills, with experience working across distributed teams in code reviews, backlog grooming, and feature delivery Technical Skills: Programming/Scripting/Markup Languages: C#, VB.NET, C, Scala,Python, JavaScript, PHP, TypeScript, PowerShell, XML, JSON, YAML, XAML, HTML, CSS,Perl. Web Technolbogies: .NET 3.5/4.0/4.5/6.0/7.0/8.0, 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,KQL. Cloud Services & Deployment Azure, AWS, Azure DevOps, Docker, Kubernetes, Jenkins, Terraform Operating Systems Windows, Linux Tools & Environments Visual Studio2022/2026, 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 Production Environments One DF,Self Host,ECS. Monitoring tools Geneva,Azure monitor,Prometheus,Grafana. 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:Microsoft-Redmond,CA Dec 2025 till Date Role:Sr Full Stack .NET Developer Project Overview : As part of the Microsoft Intune engineering team, contributed to a large-scale modernization initiative aimed at transforming the Intune Reporting Services platform from legacy PaaS-based infrastructure to a cloud-native, scalable architecture. The project spanned multiple interconnected areas: migrating the Query Broker Service (QBS) to FSI Core (.NET Core) microservices, transitioning SQL-based Data Warehouse ETL pipelines to Azure Synapse Analytics, and closing observability and metrics gaps between the legacy and modernized service layers. All efforts were executed in parallel with live production operations, requiring careful engineering discipline, controlled rollout strategies, and rigorous validation at every stage. Responsibilities Contributed to the end-to-end modernization of Microsoft Intune Reporting Services, migrating legacy PaaS-based Query Broker Services (QBS) to a scalable, cloud-native FSI Core (.NET Core) microservices architecture. Implemented tenant-level feature flighting via ECS to enable controlled, percentage-based rollout of modernized services, maintaining full backward compatibility with existing API contracts throughout the transition. Designed conditional request-routing logic within the Intune Export API layer to dynamically direct tenant traffic to either the legacy QBS or FSI Core service based on real-time flight status, enabling a zero-disruption parallel transition. Supported parallel validation by running both service stacks simultaneously during the cutover window, allowing direct output comparison between legacy and modernized services before full production migration. Migrated Azure Monitor daily snapshot processing for Intune Devices and Device Compliance reports from legacy background services to FSI Core-based scheduled services with feature-flag-driven mutual exclusion to prevent duplicate data delivery. Contributed to migrating SQL-based ETL transformation pipelines from the legacy Data Warehouse to Azure Synapse Analytics using Scala and Apache Spark, and diagnosed and resolved a critical Delta table MERGE failure caused by a multi-match cardinality violation through Spark-based deduplication preprocessing. Identified and closed a critical observability gap by implementing an equivalent MDM row count metric within the FSI Core query executor, using the same metric name and dimensions as the legacy service to ensure uninterrupted dashboard and alerting continuity. Leveraged GitHub Copilot CLI during the migration of legacy PaaS-based ingestion pipelines to the FSI Core microservices architecture to identify and resolve gaps in telemetry and monitoring metrics, successfully migrating and validating 5+ missing ingestion metrics to ensure operational visibility and monitoring continuity. Leveraged KQL queries against Geneva and Azure Monitor telemetry to verify report delivery, diagnose anomalies, and confirm data correctness across Self Host, DF, and Production environments before each promotion. Monitored overall application health using Azure Monitor and Application Insights, establishing performance baselines and supporting production issue analysis, tuning, and risk mitigation across all migrated workloads. Collaborated cross-functionally with the QBS team for Export API and Data Warehouse teams to design and implement Geneva monitoring dashboards, alerts, and operational metrics. Leveraged Copilot CLI to accelerate JSON-based monitor configuration development and authored troubleshooting/runbook documentation to improve production support, observability, and on-call readiness. Leveraged GitHub Copilot within Azure DevOps work items to streamline task documentation, generate acceptance criteria, and improve sprint velocity, increasing overall team productivity. Environment: C#, .NET Core, ASP.NET Core, Scala, Microsoft Azure, Visual Studio 2022/2026, Microservices and Cloud-Native Architecture, Apache Spark, Azure Synapse Analytics, Delta Lake, KQL, Geneva, Azure Monitor, Application Insights, Log Analytics, Event Hub, Blob Storage, Azure DevOps, CI/CD Pipelines, Service Fabric, Self Host (SH), DF and Production Environments, ECS, Config V2, MDM Metrics, Intune Admin Portal, IntelliJ IDEA. Client: Kaiser Permanente - Oakland, CA. Jan 2024 Nov 2025 Role: Sr Full Stack .NET Developer Project Overview : Developed a scalable, HIPAA-compliant healthcare platform that modernized claims processing and streamlined the management of patient and provider information. The platform automated eligibility checks, accelerated claims verification and approval workflows, and enabled secure interoperability with existing Electronic Medical Record (EMR/EHR) systems through HL7/FHIR integration. Built on a cloud-native microservices architecture, the system delivered real-time data access, event-driven processing, and accessible user interfaces for both providers and patients. Developed scalable healthcare backend services using .NET 8, C#, and ASP.NET Core Web API to manage patient records, claims processing, and provider data with high reliability and performance. Designed microservices using CQRS and Mediator patterns and built RESTful APIs and GraphQL endpoints to enable secure, efficient data exchange across internal services and external healthcare systems. Applied SOLID principles, Factory Pattern, and Dependency Injection to ensure a maintainable, loosely coupled, and testable service architecture across all backend components. Integrated HL7/FHIR APIs with EMR/EHR systems to enable secure and seamless data interoperability across providers, patients, and labs. Enforced HIPAA compliance across all data handling workflows and implemented audit logging to ensure secure, traceable access to Protected Health Information (PHI). Built responsive, WCAG-compliant user interfaces using React 18 with Tailwind CSS and developed modular Blazor Server/WebAssembly components for patient dashboards and claims tracking. Wrote and optimized T-SQL stored procedures, ETL pipelines using Azure Data Factory and SSIS, and implemented LINQ-based data retrieval on SQL Server and MongoDB, reducing query response time by 30 40%. Implemented event-driven architecture using Apache Kafka and automated workflows with Azure Functions and Logic Apps, enabling real-time data streaming and streamlining claims validation and audit reporting. Wrote unit and integration tests using xUnit, NUnit, and Moq, integrated into Azure DevOps CI/CD pipelines to enforce automated quality gates across every build and deployment. Provisioned cloud infrastructure using Terraform and deployed services on Azure Kubernetes Service (AKS) with Docker and Helm, and configured end-to-end observability using Prometheus, Grafana, and Azure Application Insights. Collaborated with cross-functional teams including business analysts, clinicians, and IT operations using Jira and Confluence, working within Agile/Scrum methodology to ensure alignment with healthcare workflows and on-time delivery. Managed version control using GitHub, conducting code reviews and mentoring junior developers to improve overall team productivity and code quality. Environment:- .NET 8, C#, ASP.NET Core Web API, React18, 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 Modernized a financial platform for credit card transaction processing, customer account management, and fraud detection by migrating legacy systems to a cloud-native architecture on AWS. Improved transaction performance, enhanced security and compliance, and enabled real-time analytics and automated dispute management across distributed microservices. Responsibilities: Contributed across full SDLC, applying DDD, SOLID, and microservices architecture to design scalable payment processing, fraud detection, and compliance systems. Designed and developed RESTful APIs using ASP.NET Core Web API, supporting credit card transactions, onboarding, and dispute workflows; integrated legacy systems via SOAP/WCF services. Led migration of legacy ASP.NET MVC/WebForms applications to .NET 6 and React, improving scalability, maintainability, and system performance. Built responsive and accessible UIs using Angular, HTML5, CSS3, ensuring ADA compliance and seamless user experience across financial workflows. Implemented CQRS and event-driven architecture using Kafka and RabbitMQ, enabling high-throughput, asynchronous payment processing and fraud event handling. Developed optimized SQL queries, stored procedures, and data pipelines, and implemented ETL workflows using AWS Glue and SSIS for large-scale transaction data processing. Leveraged AWS services (Lambda, S3, DynamoDB, RDS, CloudWatch) to build scalable, serverless, and resilient components for transaction processing, monitoring, and analytics. Built real-time fraud detection modules using location-based data and event streaming, enabling automated alerts, chargeback handling, and compliance checks. Implemented secure authentication using JWT and OAuth 2.0, and developed unit/integration tests (NUnit) to ensure reliability and code quality. Containerized and deployed microservices using Docker, Kubernetes (AWS EKS), and automated infrastructure provisioning with Terraform; integrated CI/CD pipelines for seamless deployments. Collaborated with cross-functional teams in Agile/Scrum environments (Jira, Confluence) to deliver compliant, high-quality financial solutions. 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, React, 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: Participated in full SDLC, contributing to design, development, testing, and deployment of retail and supply chain applications. Developed and consumed RESTful APIs using ASP.NET Core (3.1/5) to support membership management, order processing, and vendor integrations. Built responsive front-end applications using Angular 12, TypeScript, HTML5, and CSS3, improving user experience for internal and customer-facing portals. Designed and implemented data access layers using ADO.NET and Entity Framework, interacting with Oracle and relational databases. Created optimized SQL queries, stored procedures, and functions to enhance performance of order processing and inventory systems. Leveraged AWS services (EC2, S3, RDS, Lambda) for application hosting, storage, and serverless processing, improving scalability and availability. Implemented asynchronous operations using Ajax and jQuery to enhance UI responsiveness and reduce server load. Developed ETL processes using SSIS to process and transform sales, warehouse, and supplier data for reporting. Built Power BI and SSRS reports to provide insights into sales trends, inventory levels, and membership activity. Implemented logging and monitoring using log4Net, improving debugging and system reliability. Wrote unit tests using NUnit/xUnit, ensuring code quality and stability of application components. Used TFS for version control and collaboration, managing code branches and deployments. Collaborated in Agile/Scrum environment, working closely with business analysts and stakeholders to deliver features on time. Environment: ASP.NET Core 3.1/5, C#, Angular 12, ADO.NET, Entity Framework, Oracle, SQL Server, AWS (EC2, S3, RDS, Lambda), SSIS, Power BI, SSRS, TFS, NUnit/xUnit, HTML5, CSS3, JavaScript, jQuery, Ajax 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