.Net Core Developer

Summary

Senior Full Stack .NET Developer with **+ years of experience in software development, specializing in C#, .NET Core, and Angular. Experienced in cloud services such as Azure and AWS, with hands-on knowledge of cloud-native applications. Worked in fast-paced environments and collaborated with cross-functional teams. Delivered 8+ enterprise-level applications that addressed business objectives and user needs.

Skills

C#, .NET frameworks, ASP.NET Core, .NET MVC, Web API, Web Forms, Angular, AngularJS, React, JavaScript, Typescript, HTML5, CSS, JQuery, Python, Django, Java, Spring, Vb.Net, Next.js, Razor, Blazor, Kendo UI, WPF, MS SQL, Azure SQL, Entity Framework, ADO.NET, MySQL, PostgreSQL, MongoDB, CosmosDB, Azure, AWS, Terraform, Docker, Kubernetes, Jenkins, TeamCity, Azure DevOps, OAuth 2.0, SAML, RabbitMQ, Kafka, WCF, Restful API, SOAP, Jest, Jasmine, NUnit, XUnit, Cypress, Git, Jira, Agile

Experience

Microsoft WA, Redmond

Lead .NET Engineer - .NET Core, Azure, Angular, React 05/2023 - Present Developed scalable and responsive web applications using .NET Core 6, ASP.NET MVC, Angular 13, Kendo UI, Razor, and TypeScript, ensuring optimal performance and cross-platform compatibility. Engineered interactive user interfaces using React, Angular, and Blazor; boosted user engagement by 40% through intuitive navigation and responsive design, resulting in a 25% increase in session durations. Leveraged Entity Framework and Azure Cosmos DB to design and implement efficient data access layers and NoSQL databases, increasing data retrieval speed by 30% and supporting over 1 million records. Configured Blazor applications with Azure App Service and Functions, resulting in a 25% reduction in server costs and enhancing scalability for over 50,000 users.

Enhanced security by implementing OAuth, SAML, and OIDC protocols in Azure Active Directory, ensuring secure authentication for 100,000+ user accounts.

Implemented infrastructure as code (IaC) using Terraform to automate Azure resource provisioning, reducing provisioning time by 40% and supporting more than 200 instances. Managed Azure Kubernetes Service (AKS) and deployed Azure Virtual Machines and Load Balancers, achieving 99.9% uptime and handling over 500,000 daily requests.

Collaborated closely with product managers and UX/UI designers, leveraging Agile methodologies and Azure DevOps, improving release cycles by 30% and maintaining a 95% sprint completion rate. Conducted performance turning using Azure Monitor and Application insights, improving application responsiveness by 35% and enhancing the user experience for over 75,000 active users. SmileDirectClub TN, Nashville

Senior Full Stack Engineer - .NET Core, MVC, Angular, Azure 05/2020 - 05/2023 Innovated and upheld high-performance data analytics and reporting functionalities using .NET Core 3.1/5.0, ASP.NET MVC 5, and Angular; enabled detailed tracking of treatment outcomes and increased operational efficiency by 50%. Implemented RabbitMQ message queuing with .NET Core and C#, improving message processing speed by 40% and supporting 100,000+ messages daily.

Leveraged Dependency Injection patterns and frameworks to manage service lifetimes and dependencies, resulting in cleaner code architecture and improved application maintainability. Optimized database interactions by integrating Entity Framework Core and LINQ with SQL Server 2019, reducing query execution time by 40% and enhancing data retrieval performance across applications. Enhanced MS SQL Server to develop and refined performance-critical solutions, including crafting 5,000+ lines of T-SQL scripts and designing efficient stored procedures. Established robust unit and integration testing frameworks using xUnit, NUnit, and Moq, which led to a 50% reduction in critical application bugs for Checkout and Shipping processes and sustained high-quality code standards. Rainer Ledesma

Miami, FL 786-***-**** linkedin.com/in/rainer-l-127846275 **************@*****.***

Monitored performance using Azure Application Insights, Splunk, and New Relic, ensuring 99.9% uptime and optimizing Real-time Chat Support and Feedback System microservices for over 200,000 users. Automated deployment and CI/CD pipelines with Azure DevOps, reducing deployment times by 35% and minimizing system downtime for Order Fulfillment and Customer Support modules, supporting 50+ deployments monthly. ADP NJ, Roseland

.NET Backend Developer - C#, .NET Core, SQL 12/2018 - 05/2020 Led the backend development of a critical payroll processing module using .NET Core and ASP.NET MVC, ensuring robust performance and scalability to handle ADP's enterprise-level client base. Designed RESTful APIs in C# to facilitate seamless integration of ADP's HR management systems with third-party applications, enhancing data interoperability and client satisfaction. Optimized SQL Server databases and T-SQL queries to improve query performance by 30%, resulting in faster data retrieval and processing times for payroll and benefits administration tasks. Deployed OAuth 2.0 authentication and authorization protocols to enhance security and access control for ADP's cloud- based HR and payroll solutions.

Pioneered transition to microservices with Docker and Kubernetes, enhancing deployment efficiency by 50% and enabling ADP's cloud-based HR solutions to handle a 5x increase in user load. Automated CI/CD pipelines using Azure DevOps and Git for continuous integration and deployment of backend services, reducing deployment cycles by 50% and minimizing downtime. Spearheaded the adoption of Agile methodologies, including daily stand-ups and sprint planning, resulting in a 20% increase in team productivity and on-time project delivery. Soltech GA, Atlanta

.NET Backend Developer - C#, ASP.NET, VB.NET, SOAP, RESTful 11/2015 - 11/2018 Collaborated with cross-functional teams to migrate 3 legacy VB.NET applications to modern technologies and industry best practices.

Upgraded a complex ASP.NET Web Forms project to ASP.NET Core MVC, achieving a 67% reduction in page load times from 3 seconds to 1 second, enhancing user experience and engagement. Engineered a RESTful architecture that streamlined data exchange protocols, reducing communication overhead by 40% and boosting development efficiency by 25%.

Integrated third-party services, including payment gateways, resulting in accelerated development cycles and faster time-to- market for new features and enhancements.

Developed and maintained robust SOAP/REST web services for diverse projects, ensuring seamless data flow between frontend and backend systems to support complex business operations. Established a centralized NuGet repository to manage and distribute internal packages, enhancing software delivery processes and version control across teams.

Demonstrated proficiency in SDLC processes encompassing requirements management, issue tracking, version control with Git and Bitbucket, and agile methodologies, ensuring efficient project delivery and collaboration. Applied agile development methodologies to drive project success, promoting continuous improvement and delivering high- quality software solutions in fast-paced environments. Education

University of Florida

Bachelor's degree, Computer Science

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