Senior .NET Full Stack Developer with 12+ Years Experience

GIRIDHAR CHALASANI

Senior .NET Full Stack Developer

Ph. #: 669-***-****

Gmail: ************@*****.*** LinkedIn: https://www.linkedin.com/in/giridhar-ch

PROFESSIONAL SUMMARY:

• Senior .NET Full Stack Developer with 12 years of extensive experience delivering scalable, secure, and high-performance enterprise applications across the full Software Development Life Cycle (SDLC), including requirements analysis, architecture design, development, testing, deployment, and production support. Proven ability to work in both Agile and Waterfall environments, consistently delivering mission-critical solutions with high reliability and performance.

• Expert in .NET technologies, including C# (latest versions), ASP.NET Core Web API, ASP.NET MVC, ADO.NET, Entity Framework, and Entity Framework Core, with deep expertise in multithreading, parallel programming, and performance optimization for high-volume applications.

• Strong foundation in software architecture and design patterns, including Microservices, Onion, N-Tier, and MVC architectures, along with hands-on experience implementing SOLID principles, Dependency Injection, and enterprise-level design patterns such as Repository, Factory, and Singleton.

• Extensive experience in developing and integrating RESTful and SOAP-based web services, enabling seamless communication across distributed systems. Skilled in building event-driven and asynchronous systems using messaging technologies such as RabbitMQ and MSMQ.

• Proficient in full stack development, with strong frontend expertise in Angular (10+), TypeScript, JavaScript (ES6+), HTML5, CSS3, and Bootstrap, delivering responsive, high-performance user interfaces. Experienced in backend API development using both .NET and Node.js for scalable and real-time applications.

• Deep expertise in cloud-native development, leveraging Microsoft Azure and AWS services, including App Services, API Management, Virtual Machines, Storage, Azure AD, SQL Databases, and monitoring tools like Application Insights and Log Analytics.

• Strong database expertise across SQL Server (2008–2022), PostgreSQL, and NoSQL databases such as MongoDB, with hands-on experience in designing, optimizing, and tuning complex queries, stored procedures, triggers, and indexing strategies to enhance performance.

• Experienced in implementing CI/CD pipelines using Azure DevOps, automating build, test, and deployment processes to accelerate delivery cycles and improve software quality. Proficient with version control systems including Git, SVN, and TFS.

• Well-versed in testing and quality assurance practices, utilizing frameworks such as xUnit, NUnit, MSTest, and frontend testing tools like Jasmine, Karma, and Jest, along with API testing tools including Postman, Swagger, and SOAP UI.

• Strong knowledge of code quality, logging, and monitoring tools such as SonarQube and Log4Net, ensuring maintainability, reliability, and security of applications.

• A highly motivated and results-driven professional with excellent problem-solving, analytical, and communication skills, capable of working independently or collaboratively to deliver high-quality software solutions in fast-paced environments.

• Leveraged AI-assisted development tools such as GitHub Copilot to accelerate code generation, improve developer productivity, and maintain high code quality while reducing development time across backend and frontend components

• Led adoption of modern engineering practices including AI-driven coding, code reviews, and GitHub-based workflows (PRs, branching strategies) to enhance collaboration, enforce standards, and improve overall development efficiency

• Designed and implemented scalable microservices architecture using .NET Core and cloud platforms (Azure/AWS), improving system performance, reliability, and deployment efficiency

• Led end-to-end solution architecture (HLD/LLD), driving API design, system integrations, and modernization of legacy applications into cloud-native, resilient systems

Technical Skills:

.NET Technologies

.NET 6/7/8, ASP.NET MVC 5, ADO.NET, .NET Blazor, Entity Framework 6.0, LINQ, WCF, ASP.NET Identity

Web Technologies

Angular (10–16), TypeScript, JavaScript, HTML5, CSS3, Bootstrap, jQuery, AJAX

Languages

C#, VB.Net, SQL, T-SQL, PL/SQL, Python, Full-stack Development,

ORM Framework

Entity Framework, Entity Framework Core, ADO.NET

Testing Framework

NUnit, xUnit, MSTest, Karma, Jasmine, Jest, Postman, Swagger UI, SOAP UI

Cloud Platforms

Microsoft Azure (API Gateway, App Services, Functions, Service Bus, Blob Storage, Queue,

Table Storage, Key Vault, Azure Monitor) Azure AD B2C, Jira, Managed Identity, AWS (EC2, S3, RDS), Azure DevOps, GitHub, GitHub Actions.

Protocols

SOAP, REST, HTTP/S, TCP/IP.

Version Control

Team Foundation Server, Git and SVN, GIT

Methodologies

Agile (Scrum), Waterfall, CI/CD, Design Patterns, Refactoring, SDLC Practices, ITIL

Technologies

Microservices Architecture, N-Tier Architecture, Onion Architecture, Design Patterns, Event

Driven Architecture

Database

SQL Server (2012–2022), PostgreSQL, MongoDB, Oracle

Tools

Visual Studio, TFS, VSTS/Azure DevOps, ESRI ArcGIS, ReSharper, IIS, Visual Studio Code, Notepad++, SOAP UI, Postman, LINQ Pad, Microsoft Visio, CRM Systems, GitHub Copilot, AI/ML Integrations, Large Language Models.

Professional Experience

Client: Quest Diagnostics – Schaumburg, IL Oct 2023 – Present USA

Role: Senior .NET Full Stack Developer

Domain: Healthcare.

Responsibilities:

• Led development of an enterprise-scale Healthcare Claims Management Platform using ASP.NET Core (.NET 6/7/8) and Microservices Architecture, supporting claims adjudication, member enrollment, provider onboarding, and payment processing workflows for over 50K+ healthcare users across multiple states.

• Architected and deployed cloud-native microservices on Microsoft Azure Kubernetes Service (AKS) using Docker and Kubernetes, enabling independent deployments, reducing production outages, and improving release efficiency by 35% across distributed healthcare services.

• Engineered high-performance RESTful APIs using C#, ASP.NET Core Web API, and async/await programming, processing more than 2M+ claims transactions monthly while improving API response times by 30% during peak loads.

• Designed optimized Entity Framework Core data access layers with SQL Server, implementing advanced indexing strategies, query optimization, and stored procedures that reduced database execution time from 12 seconds to under 5 seconds for high-volume claims queries.

• Integrated Azure OpenAI APIs and AI-driven validation services to automate healthcare claims verification and anomaly detection, reducing manual review efforts by approximately 20+ hours per week for operations teams.

• Implemented enterprise-grade HIPAA-compliant security architecture using OAuth2, OpenID Connect, JWT, and Azure Active Directory RBAC, securing PHI data for millions of member records and passing multiple compliance audits without critical findings.

• Developed responsive and scalable frontend applications using Angular 16+, TypeScript, Bootstrap, HTML5, and CSS3, improving user engagement and reducing claims processing time by 25% for customer service teams.

• Enabled real-time event-driven communication between distributed services using Apache Kafka, processing more than 500K+ asynchronous healthcare events daily while improving data consistency and reducing synchronization delays.

• Integrated enterprise applications with external EHR/EMR systems using FHIR and HL7 interoperability standards, enabling secure healthcare data exchange between providers, hospitals, and insurance platforms.

• Built and maintained automated CI/CD pipelines using Azure DevOps, GitHub Actions, and YAML pipelines, reducing deployment cycles from 4 hours to less than 45 minutes while improving deployment success rates.

• Deployed and managed enterprise workloads using Azure App Services, AKS, Azure API Management, Azure SQL, and Azure Storage Accounts, optimizing cloud resource utilization and reducing infrastructure costs by nearly 20% annually.

• Implemented centralized application monitoring and logging using Serilog, Azure Monitor, Application Insights, and Log Analytics, reducing Mean Time to Resolution (MTTR) by 30% for production incidents.

• Collaborated with cross-functional Data Science teams to integrate Machine Learning models for predictive claims analytics and fraud detection, improving claim risk identification accuracy for high-value transactions.

• Developed secure enterprise document management integrations using IBM FileNet, automating claims document uploads, approvals, and archival processes for more than 1M+ healthcare documents annually.

• Modernized legacy ASP.NET Web Forms applications into scalable .NET Core + Angular Microservices architecture, significantly improving application maintainability, scalability, and deployment flexibility.

• Utilized Redis Distributed Caching and in-memory caching strategies to improve application throughput and reduce redundant database calls, increasing overall transaction processing efficiency during high-traffic periods.

• Conducted extensive performance tuning, memory optimization, and multithreading enhancements using Parallel Programming and optimized LINQ queries, reducing backend processing latency for critical claims workflows.

• Worked closely with business analysts, QA teams, infrastructure engineers, and healthcare stakeholders in an Agile/Scrum environment, participating in sprint planning, backlog grooming, code reviews, and release management activities.

• Led adoption of GitHub Copilot and AI-assisted development practices across engineering teams, accelerating development velocity, improving code quality standards, and reducing repetitive coding efforts in enterprise projects.

• Mentored junior developers and provided technical leadership on Microservices, Cloud Architecture, Secure API Development, and Healthcare Compliance Standards, contributing to improved engineering productivity and delivery quality across the program.

Environment: C#, ASP.NET Core (.NET 6/7/8), Web API, Microservices, Angular 16+, TypeScript, HTML5, CSS3, Bootstrap, SQL Server, Entity Framework Core, Microsoft Azure (App Services, AKS, API Management, Azure SQL, Functions), Docker, Kubernetes, Apache Kafka, Azure OpenAI, OAuth2, OpenID Connect, JWT, Azure AD, Azure DevOps, GitHub Actions, Postman, Swagger, xUnit, Jasmine, Karma, Serilog, Azure Monitor, Application Insights, Git, Visual Studio, SSMS, REST/SOAP, FHIR/HL7, IBM FileNet, JIRA, SonarQube

Client: Cardinal Health – Fort Worth, TX Feb 2021 – March 2023 USA

Role: Senior .NET Full Stack Developer

Domain: Healthcare.

Responsibilities:

• Engineered and enhanced enterprise-grade healthcare applications using .NET 6/7/8, ASP.NET Core, and Web API, significantly improving system scalability and enabling high-throughput processing of large healthcare datasets.

• Designed and developed high-performance, secure RESTful APIs using C#, Entity Framework Core (6/7/8), and SQL Server (2019/2022), achieving ~25–30% reduction in response times through optimized query execution and efficient data access patterns.

• Architected cloud-native microservices solutions leveraging .NET Core, Docker, and Kubernetes (AKS), improving system modularity, fault isolation, and deployment efficiency across distributed environments.

• Built modern, responsive user interfaces using Angular (14+) / React (18+), TypeScript, and RxJS, delivering intuitive UX for healthcare professionals and improving overall user engagement.

• Leveraged Microsoft Azure ecosystem including Azure App Services, Azure Functions, Azure Service Bus, Azure Blob Storage, Azure API Management, and Azure Key Vault to design scalable, secure, and event-driven solutions.

• Implemented end-to-end CI/CD pipelines using Azure DevOps, GitHub Actions, and YAML pipelines, enabling automated builds, testing, and deployments—reducing release cycle time by ~40–50%.

• Designed and optimized relational data models and complex queries using SQL Server, incorporating indexing strategies, partitioning, and query tuning to enhance performance and data retrieval efficiency.

• Integrated secure authentication & authorization using OAuth 2.0, OpenID Connect, JWT tokens, and Azure Entra ID (Azure AD), ensuring compliance with HIPAA and enterprise security standards.

• Containerized applications using Docker and orchestrated deployments via Kubernetes (AKS/EKS) with Helm charts, ensuring high availability, scalability, and zero-downtime deployments.

• Implemented observability and monitoring using Azure Monitor, Application Insights, Log Analytics, and Serilog, enabling proactive issue detection and reducing mean time to resolution (MTTR).

• Developed comprehensive unit, integration, and API tests using xUnit, NUnit, Moq, and FluentAssertions, increasing code quality and minimizing production defects.

• Applied caching strategies using Redis and in-memory caching, along with asynchronous programming and parallel processing, improving application throughput and responsiveness.

• Worked extensively in Agile/Scrum environments, collaborating with cross-functional teams (QA, DevOps, Product Owners) to deliver high-quality features aligned with business goals.

• Supported mission-critical production systems with 24/7 monitoring, incident management, and root cause analysis, ensuring high system reliability and SLA adherence.

• Contributed to continuous improvement initiatives, adopting modern engineering practices such as clean architecture, domain-driven design (DDD), and API-first development.

Environment: .NET Core (.NET 6/7/8), C#, ASP.NET Core Web API, Microservices, Angular/React, TypeScript, SQL Server, Entity Framework Core, REST APIs, Azure, Azure DevOps, CI/CD, Docker, Kubernetes, Redis, RabbitMQ/Kafka, OAuth2, JWT, Azure AD, Swagger, xUnit, Git.

Client: Coinbase – San Francisco, CA Jul 2020 – May 2022 USA

Role: .NET Full Stack Developer

Domain: Fintech.

Responsibilities:

• Engineered high-performance fintech platforms using .NET 6/7/8 and ASP.NET Core Web API, enabling secure, low-latency processing of high-volume digital asset and transaction workflows.

• Designed and developed scalable, secure RESTful APIs using C#, Entity Framework Core (6/7/8), and SQL Server (2019/2022), reducing API response times by ~30% through optimized data access and efficient query strategies.

• Architected cloud-native microservices ecosystems leveraging .NET, Docker, Kubernetes (AKS/EKS), and event-driven design, improving system resilience, scalability, and independent service deployment.

• Implemented secure transaction and payment systems using OAuth 2.0, OpenID Connect, JWT, and advanced encryption techniques, ensuring compliance with PCI-DSS and financial security standards.

• Built and deployed applications on AWS cloud (EC2, S3, Lambda, API Gateway, RDS, CloudWatch), enabling elastic scalability, high availability, and optimized infrastructure costs.

• Developed modern, high-performance trading dashboards using React (18+), TypeScript, and modern UI frameworks, delivering real-time, responsive user experiences for financial operations.

• Optimized database performance using SQL Server and distributed data strategies, including indexing, partitioning, caching, and query tuning, significantly reducing latency and improving throughput.

• Implemented end-to-end CI/CD pipelines using Jenkins, GitHub Actions, and Docker, enabling automated testing, containerized deployments, and faster release cycles.

• Designed event-driven architectures using RabbitMQ/Kafka, supporting asynchronous processing and high-throughput messaging for real-time financial transactions.

• Enabled observability and monitoring using ELK Stack, AWS CloudWatch, Prometheus, and Grafana, providing real-time insights, alerting, and proactive issue resolution.

• Developed comprehensive unit, integration, and API test suites using xUnit, NUnit, Moq, and FluentAssertions, improving code quality and reducing production defects.

• Improved performance using Redis caching, parallel processing, and asynchronous programming patterns, enhancing system responsiveness under heavy load.

• Collaborated with Agile/Scrum teams with DevOps, QA, and product stakeholders to deliver high-impact features aligned with business and regulatory requirements.

• Ensured compliance with financial regulations (PCI-DSS, data privacy, secure coding standards), maintaining integrity and confidentiality of sensitive financial data.

• Supported mission-critical production systems with 24/7 monitoring, incident response, and root cause analysis, ensuring high availability and minimal downtime.

Environment: C#, .NET Core (.NET 6/7/8), ASP.NET Core Web API, Microservices, React (TypeScript), SQL Server (2019/2022), Entity Framework Core, REST APIs, AWS (EC2, S3, Lambda, API Gateway), Docker, Kubernetes, Redis, RabbitMQ/Kafka, OAuth2, OpenID Connect, JWT, CI/CD (Jenkins, GitHub Actions), ELK Stack, CloudWatch, Agile.

Client: Principal Financial Group – Indianapolis, IN Feb 2018 – Jun 2020 USA

Role: .Net Full Stack Developer

Domain: Financial.

Responsibilities:

• Developed and modernized enterprise insurance and financial platforms using .NET 6/7 and ASP.NET Core Web API, enabling scalable, high-performance processing of large-volume policy and transaction data.

• Designed and implemented secure, high-throughput RESTful APIs using C#, Entity Framework Core (6/7), and SQL Server (2017/2019), improving system interoperability and reducing response times by ~25%.

• Architected clean, modular application layers using Clean Architecture, SOLID principles, and domain-driven design (DDD), enhancing maintainability, testability, and code reuse.

• Built modern, responsive user interfaces using Angular (13+) / React (18+) and TypeScript, improving usability and delivering seamless digital experiences for financial users.

• Optimized database performance using advanced T-SQL techniques, indexing, partitioning, and query tuning, significantly improving data access speed and overall system efficiency.

• Leveraged Microsoft Azure cloud services including App Services, Azure Functions, Azure Storage, Azure API Management, and Key Vault, enabling cloud-native, secure, and highly available applications.

• Implemented secure authentication and authorization frameworks using OAuth 2.0, OpenID Connect, JWT, and Azure Entra ID (Azure AD), ensuring compliance with financial security and data protection standards.

• Integrated legacy and modern systems using both REST and SOAP services, supporting seamless data exchange across enterprise ecosystems.

• Built and managed CI/CD pipelines using Azure DevOps, GitHub Actions, and YAML pipelines, automating testing and deployments, and reducing release cycle times by ~40%.

• Developed robust unit, integration, and API tests using xUnit, NUnit, Moq, and FluentAssertions, improving code quality and reducing production defects.

• Implemented centralized logging and observability using Serilog, Azure Application Insights, and Log Analytics, enabling proactive monitoring and faster issue resolution.

• Applied performance optimization techniques including Redis caching, asynchronous programming, and parallel processing, enhancing system responsiveness under high-load conditions.

• Collaborated closely with business analysts, product owners, and cross-functional teams, translating complex financial requirements into scalable technical solutions.

• Delivered features in Agile/Scrum environments, actively participating in sprint planning, backlog grooming, and continuous improvement initiatives.

• Supported mission-critical production systems with 24/7 monitoring, incident management, and root cause analysis, ensuring high availability and SLA adherence.

Environment: C#, .NET Core (.NET 6/7), ASP.NET Core Web API, Microservices, Angular/React, TypeScript, SQL Server (2017/2019), Entity Framework Core, REST/SOAP APIs, Azure (App Services, Functions), Azure DevOps, CI/CD, Redis, OAuth2, OpenID Connect, JWT, Application Insights, Serilog, Git, Agile.

Client: Tata Autocomp Systems Ltd - Pune Jul 2014 – Aug 2017 India

Role: .NET Developer

Domain: Manufacturing.

Responsibilities:

• Developed and supported enterprise manufacturing applications using C#, ASP.NET MVC (4/5), and .NET Framework (4.5/4.6), improving operational efficiency and automating key business processes.

• Implemented robust data access layers using ADO.NET and Entity Framework (5/6) to handle CRUD operations and business logic, enabling efficient data processing and reducing manual intervention.

• Designed and optimized database solutions using SQL Server (2012/2014), including complex queries, stored procedures, and triggers, enhancing data integrity, and improving query performance.

• Built responsive and user-friendly interfaces using HTML5, CSS3, JavaScript, and jQuery, improving usability for internal manufacturing and operations teams.

• Developed and integrated SOAP and RESTful web services to enable seamless communication between internal systems such as inventory, production, and reporting platforms.

• Performed application debugging, troubleshooting, and issue resolution using Visual Studio, ensuring system stability and minimizing downtime in production environments.

• Participated in testing and validation activities, including manual and basic unit testing, ensuring quality and reliability of applications prior to deployment.

• Supported application deployments and configurations in IIS environments, ensuring smooth rollout of updates and minimal disruption to business operations.

• Collaborated with cross-functional teams and business stakeholders to gather requirements and translate them into effective technical solutions aligned with manufacturing workflows.

• Maintained technical documentation, user guides, and code comments, improving knowledge sharing and long-term maintainability of applications.

• Enhanced and maintained legacy systems by implementing new features and optimizing existing functionalities to meet evolving business needs.

• Utilized version control systems such as TFS and Git for source code management, enabling better collaboration and code traceability.

• Assisted in performance tuning efforts by optimizing SQL queries and improving application response times under operational workloads.

• Contributed to Agile-like development practices, supporting timely delivery of assigned modules and continuous improvement initiatives.

• Built a strong foundation in object-oriented programming (OOP), design patterns, and SDLC, supporting progression into advanced enterprise development roles.

Environment: ASP.NET, C#, ADO.NET, SQL Server, HTML, CSS, JavaScript, jQuery, Bootstrap, SOAP, XML.

Education:

CMR Engineering College May 2010 – June 2014 India

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