Full-Stack .NET Developer with Azure & AWS Expertise

V N Sai Sumanth Kedarisetti

Full Stack .Net Developer

+1-571-***-**** **************@*****.*** LinkedIn

PROFESSIONAL SUMMARY

Full Stack Developer with around 5 years of experience designing, building, and delivering enterprise-grade, cloud-native applications on Microsoft Azure and AWS, using C#, .NET Core, Python, and Angular. Proven expertise in full-stack application development across backend APIs, microservices, and modern front-end interfaces, with deep experience in Azure App Service, Azure Functions, Azure Active Directory, Azure Key Vault, and Azure Monitor. Strong background in RBAC, secure authentication via Azure AD, sensitive data handling, and regulatory compliance in financial services environments. Experienced in integrating enterprise SaaS platforms and third-party systems, implementing auditability, logging, and CI/CD pipelines via Azure DevOps. Adept at owning application architecture end-to-end, enforcing best practices, and partnering with security, risk, and compliance teams to deliver resilient, production-grade solutions independently.

TECHNICAL SKILLS

Languages & Frameworks: C#, Python, .NET Core, ASP.NET Core Web API, ASP.NET MVC, LINQ, Entity Framework

Azure Services: App Service, Azure Functions, Azure Active Directory (Azure AD), Azure Key Vault, Azure Storage, Azure Monitor, Azure DevOps, Application Insights

AWS Services: Lambda, ECS Fargate, API Gateway, S3, RDS (PostgreSQL), DynamoDB, CloudWatch, IAM, Glue, Step Functions, Athena, CloudFormation, CDK, CodePipeline, CodeBuild

Architecture: Microservices, Serverless, Cloud-Native, N-Tier, SOA, Event-Driven, RESTful APIs

Security & Compliance: RBAC, Azure AD (OAuth 2.0 / OIDC), Azure Key Vault, IAM, Encryption (At Rest / In Transit), HIPAA, Audit Logging

Frontend: Angular, TypeScript, JavaScript, HTML5, CSS3, Bootstrap

Databases & Integration: SQL Server, PostgreSQL, DynamoDB, SSIS, AWS Glue, Entity Framework, Stored Procedures, T-SQL

DevOps / CI-CD: Azure DevOps, Docker, AWS Code Pipeline, Code Build, Git, Docker, Jenkins, Infrastructure as Code (IaC)

Methodologies: Agile, Scrum, SDLC, TDD, Code Reviews, Technical Leadership

CERTIFICATIONS

Microsoft Azure Fundamentals (Az-900)

EDUCATION

Master of Science University of North Texas, United States

Work Experience

Fiserv. (Atlanta, Georgia). Sep 2024 – Present

Senior Full Stack .NET Developer

Designed and developed enterprise-grade full-stack applications for client commitment and operational workflow management using ASP.NET Core, Angular/React, SQL Server, and Azure cloud technologies. Worked on scalable backend APIs, enterprise integrations, batch-processing systems, cloud deployments, and AI-enabled proof-of-concept features supporting internal productivity and intelligent search capabilities.

Responsibilities

Designed and developed full-stack enterprise applications using ASP.NET Core, C#, Angular/React, TypeScript, HTML5, CSS3, and SQL Server.

Built and maintained RESTful APIs using ASP.NET Core Web API and Minimal APIs for enterprise integrations and internal business workflows.

Developed backend services and business logic using .NET Core/.NET 8, Entity Framework Core, LINQ, and SQL Server.

Implemented secure authentication and authorization using OAuth2, OpenID Connect (OIDC), Azure Active Directory, JWT tokens, and RBAC-based access control mechanisms.

Optimized API performance by implementing pagination, filtering, asynchronous processing, and caching techniques to improve scalability and reduce response times.

Improved SQL Server query performance through indexing strategies, execution plan analysis, stored procedure optimization, and query tuning for high-volume enterprise data.

Wrote complex T-SQL stored procedures, views, and scripts to automate database updates and support business workflows across multiple relational tables.

Developed .NET Console Applications to execute stored procedures, transform enterprise data, and load processed data into downstream systems.

Built and maintained SSIS packages and batch-processing workflows for enterprise ETL operations and scheduled data synchronization.

Deployed .NET Console Applications and background-processing services as Azure Web Jobs using CRON expressions for automated scheduling and operational workflows.

Developed Azure Functions for automated user provisioning, role synchronization, and background-processing tasks.

Integrated enterprise platforms including CRM, CIMS, Clarity, and ServiceNow through REST APIs and secure service-to-service communication.

Worked on proof-of-concept AI integrations using OpenAI/LLM APIs to explore intelligent search and document summarization use cases for internal workflows.

Applied basic prompt engineering techniques to improve consistency and relevance of AI-generated responses for business scenarios.

Explored Retrieval-Augmented Generation (RAG) concepts and semantic search approaches for improving contextual information retrieval from enterprise datasets.

Assisted in integrating AI-enabled features into existing .NET APIs and front-end workflows for internal experimentation and evaluation.

Containerized backend services and scheduled processing applications using Docker to standardize deployments and improve environment consistency.

Implemented CI/CD automation pipelines using GitHub Actions for automated builds, testing, Docker image creation, and deployment workflows.

Used Open API/Swagger for API documentation, endpoint validation, and integration testing.

Implemented centralized exception handling, structured logging, and monitoring frameworks to improve application reliability and troubleshooting efficiency.

Used Azure Monitor and application logs to investigate production issues and monitor application health.

Collaborated with security and compliance teams to remediate vulnerabilities using Azure Key Vault and secure configuration management practices.

Worked on L3 production support activities including incident analysis, root cause investigation, performance troubleshooting, bug fixes, and deployment validation.

Participated in Agile/Scrum ceremonies, technical discussions, peer code reviews, and unit testing using xUnit.

Delivered end-to-end features independently while collaborating with QA teams, business analysts, architects, and stakeholders throughout the software development lifecycle.

Environment : C#, ASP.NET Core, .NET Core, .NET 8, ASP.NET Core MVC, Minimal APIs, Entity Framework Core, LINQ, SQL Server, T-SQL, SSIS, REST APIs, Open API/Swagger, OAuth2, OpenID Connect (OIDC), Azure Active Directory, Azure Functions, Azure web Jobs, Azure Key Vault, Azure Monitor, Docker, GitHub Actions, Git, Angular, React, TypeScript, JavaScript, HTML5, CSS3, OpenAI APIs, Prompt Engineering, RAG Concepts, CI/CD, Agile/Scrum, xUnit, Visual Studio, ServiceNow, CRM Integrations.

E-Health, India Apr 2022 – July 2023

Senior Full Stack .NET Developer

Led end-to-end migration of a legacy on-premises claims processing platform to a cloud-native, serverless architecture on AWS. The application processed large-scale healthcare claims datasets and exposed secure, scalable APIs for downstream consumers. The project emphasized microservices, serverless computing, CI/CD automation, performance optimization, and HIPAA compliance.

Led end-to-end migration of the legacy on-premises .NET monolithic claims processing application to AWS serverless architecture leveraging AWS Lambda and ECS Fargate for optimized scalability and cost efficiency.

Refactored existing claims APIs into microservices using .NET Core Web API, deploying them as containerized workloads on AWS ECS (Fargate) and event-driven functions on Lambda based on use-case performance and concurrency needs.

Designed and implemented CI/CD pipelines using AWS CodePipeline and CodeBuild, automating build, test, and deployment of Lambda functions and ECS tasks across multiple environments.

Integrated Amazon API Gateway with Lambda functions to securely expose RESTful endpoints for claims data processing, with role-based access control enforced via AWS IAM policies.

Implemented data persistence using Amazon RDS (PostgreSQL) for structured claims data and DynamoDB for fast, scalable key-value storage of adjudication results.

Built claims data ingestion and transformation workflows using AWS Glue and Step Functions, automating processing of large healthcare claim datasets and enabling seamless querying through Amazon Athena.

Designed and deployed AWS CloudFormation templates and CDK scripts to provision and manage infrastructure as code, ensuring environment consistency and compliance with HIPAA security standards for protected health information.

Utilized AWS CloudWatch for real-time logging, custom metrics, and automated alerts to monitor Lambda executions, ECS task health, and overall claims processing system performance.

Developed dynamic Single Page Applications (SPA) using Angular, TypeScript, HTML5, CSS3, and Bootstrap to build responsive enterprise web interfaces for claims tracking and adjudication dashboards.

Implemented Docker-based containerization for .NET Core microservices and conducted Lambda vs ECS analysis to determine optimal service usage based on execution duration, concurrency, and cost, achieving ~30% reduction in operational expenses.

Collaborated with cross-functional teams to ensure PHI (Protected Health Information) handling met HIPAA compliance, enforcing encryption at rest (S3, RDS) and in transit (TLS) across all claims data flows.

Environment: .NET Core, C#, ASP.NET Web API, Microservices, AWS Lambda, ECS (Fargate), API Gateway, Docker, Amazon S3, Amazon RDS (PostgreSQL), DynamoDB, AWS Glue, Step Functions, Athena, CloudFormation, AWS CDK, IAM, CloudWatch, AWS CodePipeline, CodeBuild, CI/CD, REST APIs, Serverless Architecture, Angular, TypeScript, HTML5, CSS3, Bootstrap, HIPAA Compliance, Git, Visual Studio

Tata Consultancy Services, India Aug 2020– Mar 2022

.NET Developer

Contributed to the development of an enterprise web-based financial application built using ASP.NET, WCF, SQL Server, and XML-based integrations. The system supported complex business rules, reporting, workflow processing, and service-oriented communication.

Collaborated with Architects to analyze business requirements and design application architecture.

Participated in requirement gathering, database design, N-Tier application development, UI, Business Layer, Rules Engine, Data Layer, reporting, and XML wrappers for inter-module communication.

Worked in an Agile/Scrum environment to support iterative and incremental development.

Designed databases and developed stored procedures, functions, views, and triggers using SQL Server 2008.

Developed UI web forms using ASP.NET and jQuery, implementing business logic in C#.

Designed and developed abstract classes, interfaces, and concrete implementations for business and data tiers using C# and ADO.NET.

Built ASP.NET User Controls and rich UI components including Multiview and Wizards to support complex workflows.

Implemented state management using Cookies, Session, and Application objects at both client and server levels.

Used WCF Data Contracts for serializing .NET objects into XML for service communication.

Implemented client-side validations and dynamic UI behavior using AJAX, JavaScript, jQuery, and CSS.

Developed a test client application to measure and analyze query performance on IIS and MongoDB.

Created and consumed WCF services to generate reports and deliver them via email.

Applied Factory Design Pattern to improve modularity and maintainability.

Used Microsoft Enterprise Library for logging, caching, exception handling, and application blocks.

Managed build and deployment processes across development, testing, and staging environments.

Developed and consumed SOAP-based web services, publishing metadata using WSDL.

Utilized LINQ to SQL and LINQ to XML for efficient data access and transformation.

Implemented UI enhancements using ASP.NET AJAX Toolkit controls such as ScriptManager, UpdatePanel, and Modal Popup Extender.

Wrote T-SQL scripts to create database users, roles, permissions, stored procedures, and triggers.

Maintained source code using Team Foundation Server (TFS).

Implemented unit, integration, and regression testing using NUnit.

Environment: #, ASP.NET, .NET Framework, MVC, Web Forms, WCF, ADO.NET, LINQ, LINQ to SQL, LINQ to XML, SQL Server 2008, T-SQL, Stored Procedures, IIS, JavaScript, jQuery, AJAX, ASP.NET AJAX Toolkit, XML, XSLT, SSRS, SOAP, WSDL, Enterprise Library, NUnit, Team Foundation Server (TFS), Visual Studio, Agile/Scrum.

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