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I am Vinay Sai Kumar Apuri, a Senior Full Stack .NET Developer with 10+ years of hands-on experience designing and building scalable backend systems and modern front-end interfaces. I specialize in microservices, domain-driven design, and real-time financial, airline, and healthcare workflows, delivering reliable APIs, resilient data access, and cloud-ready deployments. I enjoy decomposing complex problems, collaborating with cross-functional teams, and continuously improving performance and security in production environments.…I am Vinay Sai Kumar Apuri, a Senior Full Stack .NET Developer with 10+ years of hands-on experience designing and building scalable backend systems and modern front-end interfaces. I specialize in microservices, domain-driven design, and real-time financial, airline, and healthcare workflows, delivering reliable APIs, resilient data access, and cloud-ready deployments. I enjoy decomposing complex problems, collaborating with cross-functional teams, and continuously improving performance and security in production environments.

Vinay Sai Kumar Apuri

Full Stack Developer, Web Developer, Back-End Developer, +2

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I am Vinay Sai Kumar Apuri, a Senior Full Stack .NET Developer with 10+ years of hands-on experience designing and building scalable backend systems and modern front-end interfaces. I specialize in microservices, domain-driven design, and real-time financial, airline, and healthcare workflows, delivering reliable APIs, resilient data access, and cloud-ready deployments. I enjoy decomposing complex problems, collaborating with cross-functional teams, and continuously improving performance and security in production environments.…I am Vinay Sai Kumar Apuri, a Senior Full Stack .NET Developer with 10+ years of hands-on experience designing and building scalable backend systems and modern front-end interfaces. I specialize in microservices, domain-driven design, and real-time financial, airline, and healthcare workflows, delivering reliable APIs, resilient data access, and cloud-ready deployments. I enjoy decomposing complex problems, collaborating with cross-functional teams, and continuously improving performance and security in production environments.

Available to hire

I am Vinay Sai Kumar Apuri, a Senior Full Stack .NET Developer with 10+ years of hands-on experience designing and building scalable backend systems and modern front-end interfaces. I specialize in microservices, domain-driven design, and real-time financial, airline, and healthcare workflows, delivering reliable APIs, resilient data access, and cloud-ready deployments.

I enjoy decomposing complex problems, collaborating with cross-functional teams, and continuously improving performance and security in production environments.

Skills

Experience Level

Expert

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Language

English

Fluent

Work Experience

Sr .Net Full Stack Developer at Fifth Third Bank

May 1, 2023 - Present

Implemented microservices-based architecture across payments, accounts, and transactions using ASP.NET Core (.NET 8/7) and Clean Architecture. Applied CQRS with MediatR, ensuring stateless, idempotent APIs and reliable transaction orchestration for real-time banking workflows. Built high-performance RESTful APIs with EF Core and Dapper; optimized data access with indexing and query tuning on SQL Server. Designed cross-cutting concerns with custom middleware for exception handling, correlation IDs, and centralized logging. Deployed on Azure (App Services, AKS, APIM) with Docker/Kubernetes, and integrated Azure Service Bus and Kafka for asynchronous processing. Implemented RBAC and OAuth2/JWT security; automated CI/CD with Azure DevOps and multi-environment deployments. Frontend interfaces developed in Angular; containerized services for cloud scalability.

SR .Net Full Stack Developer at United Airlines

November 1, 2021 - April 30, 2023

Built microservices-based architecture for booking, check-in, and notifications using .NET 6, C#, and Dapper; employed layered design for independent deployment under peak traffic. Implemented stateless APIs with idempotent behavior, extensive validation, asynchronous processing, and caching for flight schedules. Integrated Oracle and SQL Server with PL/SQL and T-SQL for core reservation data; implemented transaction-consistent workflows. Developed responsive React frontend with TypeScript and Bootstrap; secured APIs with JWT-based auth. Deployed on AWS EC2/Elastic Beanstalk with API Gateway and S3; used SQS for asynchronous processing and Cognito for authentication. CI/CD via AWS CodePipeline/CodeBuild; Dockerized services orchestrated with Kubernetes. Wrote unit tests with xUnit/Moq and performed Cypress/UI testing.

SR. Net Full Stack Developer at State of North Carolina

February 1, 2019 - October 31, 2021

Migrated legacy VB.NET and ASP.NET Web Forms to ASP.NET Core (.NET 6) using Clean Architecture, decomposing monolithic systems into modular services for eligibility, claims, and case management. Built RESTful APIs with EF Core; applied asynchronous patterns for higher throughput. Migrated data access to Azure SQL Database; integrated Angular frontend with HTTP interceptors and centralized error handling; used Azure Blob Storage for document storage. Implemented asynchronous workflows with Azure Service Bus; authenticated with Azure Entra ID (OAuth2/OpenID Connect) and RBAC, upholding HIPAA-aligned security practices. Automated CI/CD with Azure DevOps; unit tests with xUnit/Moq; frontend tests with Jasmine/Karma; API validation with Postman.

.Net Developer at Elevance Health

September 1, 2016 - January 31, 2019

Implemented service-oriented architecture for claims intake, validation, adjudication, and response generation using ASP.NET Web API and C#. Built rule-based processing with integration to external healthcare systems via SOAP/REST; optimized SQL Server data flows with indexing and query tuning. Created claims management dashboards using AngularJS; developed asynchronous processing with MSMQ and .NET background services. Secured APIs with OAuth2/JWT/RBAC; deployed on IIS/Windows Server; CI/CD via TFS and Visual Studio; unit tests with NUnit/Moq; API validation and UI testing with Postman.

.Net Developer at BSNL

May 1, 2014 - July 31, 2016

Developed backend modules using C#, ASP.NET MVC, and ADO.NET for customer account management and billing workflows. Built web interfaces with HTML5, CSS3, JavaScript, and jQuery. Optimized database operations with SQL Server (T-SQL) and stored procedures, including indexing for high-volume telecom billing transactions. Integrated REST/SOAP APIs for communication with billing systems and network services. Performed testing and deployment using Visual Studio, IIS, and TFS.