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Hi, I’m Hemanth Theegala, a Senior .NET Full Stack Developer with 11+ years of experience delivering scalable and secure enterprise applications across Banking, Healthcare, Telecommunications, and eCommerce. I thrive in Agile environments and excel at building high-performance microservices, RESTful APIs, and cloud-native solutions using C#, .NET Core, Angular, and SQL Server. I enjoy turning complex business requirements into reliable architectures, mentoring teammates, and continuously improving code quality through SOLID design, TDD, and automated testing. I’m passionate about secure-by-design engineering, cloud platforms (Azure and AWS), and empowering teams to move fast with robust CI/CD pipelines and observable systems.…Hi, I’m Hemanth Theegala, a Senior .NET Full Stack Developer with 11+ years of experience delivering scalable and secure enterprise applications across Banking, Healthcare, Telecommunications, and eCommerce. I thrive in Agile environments and excel at building high-performance microservices, RESTful APIs, and cloud-native solutions using C#, .NET Core, Angular, and SQL Server. I enjoy turning complex business requirements into reliable architectures, mentoring teammates, and continuously improving code quality through SOLID design, TDD, and automated testing. I’m passionate about secure-by-design engineering, cloud platforms (Azure and AWS), and empowering teams to move fast with robust CI/CD pipelines and observable systems.

Hemanth Theegala

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

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Hi, I’m Hemanth Theegala, a Senior .NET Full Stack Developer with 11+ years of experience delivering scalable and secure enterprise applications across Banking, Healthcare, Telecommunications, and eCommerce. I thrive in Agile environments and excel at building high-performance microservices, RESTful APIs, and cloud-native solutions using C#, .NET Core, Angular, and SQL Server. I enjoy turning complex business requirements into reliable architectures, mentoring teammates, and continuously improving code quality through SOLID design, TDD, and automated testing. I’m passionate about secure-by-design engineering, cloud platforms (Azure and AWS), and empowering teams to move fast with robust CI/CD pipelines and observable systems.…Hi, I’m Hemanth Theegala, a Senior .NET Full Stack Developer with 11+ years of experience delivering scalable and secure enterprise applications across Banking, Healthcare, Telecommunications, and eCommerce. I thrive in Agile environments and excel at building high-performance microservices, RESTful APIs, and cloud-native solutions using C#, .NET Core, Angular, and SQL Server. I enjoy turning complex business requirements into reliable architectures, mentoring teammates, and continuously improving code quality through SOLID design, TDD, and automated testing. I’m passionate about secure-by-design engineering, cloud platforms (Azure and AWS), and empowering teams to move fast with robust CI/CD pipelines and observable systems.

Available to hire

Hi, I’m Hemanth Theegala, a Senior .NET Full Stack Developer with 11+ years of experience delivering scalable and secure enterprise applications across Banking, Healthcare, Telecommunications, and eCommerce. I thrive in Agile environments and excel at building high-performance microservices, RESTful APIs, and cloud-native solutions using C#, .NET Core, Angular, and SQL Server.
I enjoy turning complex business requirements into reliable architectures, mentoring teammates, and continuously improving code quality through SOLID design, TDD, and automated testing. I’m passionate about secure-by-design engineering, cloud platforms (Azure and AWS), and empowering teams to move fast with robust CI/CD pipelines and observable systems.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Work Experience

Sr .NET Full Stack Developer at US Bank

October 1, 2023 - Present

Lead architect for a cloud-native digital banking platform, applying ASP.NET Core 8, C#, microservices, DDD, SOLID, and Clean Architecture to support 80K concurrent users. Designed and implemented high-performance RESTful APIs for real-time account management, achieving latency reduction from 480ms to 290ms and improving throughput by 30% during peak loads. Implemented idempotent payment workflows and distributed transaction handling to reduce failed transactions by 27%. Built asynchronous processing pipelines and dynamic, metadata-driven configurations to adapt application behavior without code changes. Enforced enterprise authentication and authorization with Azure AD/Entra ID, OAuth2, OIDC, JWT, and RBAC, aligning with banking security standards. Containerized services with Docker and deployed to AKS with auto-scaling, achieving 99.7% availability and supporting 120K concurrent users. Implemented Azure DevOps CI/CD pipelines, API security via Azure API Management, and secure integra

.NET Full Stack Developer at State of Wisconsin

January 1, 2021 - September 1, 2023

Architected HIPAA-compliant healthcare management system using .NET Core 3.1/6, following Microservices Architecture, Clean Architecture, SOLID principles, and DDD to deliver scalable, secure services for 50K users. Designed secure RESTful APIs and SOAP services for eligibility and claims workflows; optimized API serialization, caching, and database queries to reduce latency from 520ms to 310ms (~40%) and boost overall throughput by 32%. Implemented asynchronous processing with messaging queues, SOA patterns with WCF/Web API, and data pipelines using JSON/XML standards. Implemented IAM with OAuth2, JWT, OIDC, ADFS, SAML SSO and RBAC to meet HIPAA security requirements. Built dynamic Angular 12/13 SPA dashboards and ADA-compliant interfaces, delivering real-time updates and cross-browser consistency. Enabled cloud readiness with Docker containers and multi-environment CI/CD in Azure DevOps; deployed Azure Functions for microservice integrations. Implemented event-driven architecture via

.Net Full Stack Developer at Delta Dental Michigan

November 1, 2018 - December 1, 2020

Delivered healthcare & insurance platform using .NET Framework 4.x and ASP.NET MVC, implementing N-Tier architecture, RESTful Web APIs, and WCF SOAP services for external claims systems. Improved throughput by 28% across claims and billing workflows; optimized SQL Server queries with indexing and execution plan tuning reducing latency from 650ms to 400ms (~38%). Led AWS migration (EC2, RDS, S3, ELB) improving availability to 99.5% and reducing annual costs. Built Angular-based frontend with jQuery/JS, implemented accessible ADA-compliant interfaces, and integrated OAuth2/JWT/ADFS SSO for secure access. Created SSRS reports and SSIS ETL pipelines for large-scale data migration and analytics. Implemented cloud-native microservices via Docker, automated CI/CD pipelines with Jenkins and Azure DevOps, and added centralized logging and monitoring. Implemented IAM integrations with Active Directory and Azure AD for cross-application authorization.

Software Developer at Amazon

November 1, 2016 - October 1, 2018

Developed scalable healthcare APIs using C#, ASP.NET Core, and cloud services, with front-end enhancements in Angular. Implemented RESTful and SOAP-based integrations, ensured secure data exchange, and optimized SQL Server queries and stored procedures. Implemented messaging with RabbitMQ and Azure Service Bus for asynchronous workflows and Kafka-driven integrations for distributed coordination. Built containers with Docker, deployed on AWS/Azure hybrid environments, and established CI/CD pipelines with Jenkins and Azure DevOps. Enforced security using OAuth2/JWT/OIDC, RBAC, and Active Directory-based authentication; delivered dashboards with SSRS and Power BI for business analytics.

Software Developer at T-Mobile

July 1, 2013 - September 1, 2015

Developed e-commerce and customer management platforms using ASP.NET MVC, Web API, and Angular. Migrated legacy front-ends to Angular 4/5 with reusable components and modular architecture, improving maintainability and frontend performance. Designed and optimized SQL Server databases with indexing and stored procedures; automated release processes using Azure DevOps/TFS CI/CD. Implemented cloud hosting with AWS, and integrated with IBM MQ for event-driven order processing and real-time notifications.