.Net Core C#

HIMAVARDHAN BYNAGARI

LinkedIn: HimavardhanBynagari Mobile: +1-806-***-**** Email: ********.**@*****.*** Address: 9030 Seward Park Ave S, Seattle, WA, 98118 Professional Summary

Software Development Engineer with 8+ years of experience developing and maintaining secure payment solutions and full-stack applications. Highly skilled in building Single Page Applications with Angular and React for the frontend and C#/.NET Core for the backend. Proficient in large-scale system design, secure API development, and cloud-native solutions. Hands-on expertise in SOLID principles, design patterns, and DevOps. Recognized as a quick learner, proactive problem-solver, and a collaborative team player. Technical Skills

Languages: C#, C++, JavaScript, TypeScript, Python, Java Frontend Technologies: ReactJS, Angular (7+), Bootstrap, HTML, CSS, SASS/SCSS, jQuery, Razor Pages, Blazor Backend Frameworks: .NET Core, ASP.NET Core Web API, Entity Framework Core, WCF, Web Forms, WinForms API Development: REST APIs, Microservices, OData, GraphQL, SOAP Databases: SQL Server, Azure Cosmos DB, PostgreSQL, DynamoDB, MySQL, MongoDB Cloud & DevOps: Microsoft Azure (App Services, Functions, Key Vault, Storage, AD, DevOps), AWS (S3, Lambda, DynamoDB, CloudWatch, IAM, ECS), Docker, Kubernetes

Testing Frameworks: NUnit, MSTest, Moq, Selenium, SpecFlow, xUnit, Cucumber, Jasmine, Karma Design & Architectural Patterns: Repository, Factory, Singleton, Dependency Injection, CQRS, Microservices, Event Sourcing Source Control & CI/CD: Git, GitHub, Bitbucket, Jenkins, Azure DevOps, AWS CDK, Terraform Development Practices: Agile (Scrum, Kanban), TDD, BDD, CI/CD IDE & Tools: Visual Studio, Visual Studio Code, Rider, Postman, Docker Desktop, Azure Portal, AWS Console Professional Experience

Amazon Senior Software Development Engineer June 2022 – Present PayStation Extensions Service

Description: Designed and developed a high-performance, distributed payment processing system using C# and ASP.NET Core. Focused on creating scalable and secure solutions for global clients, leveraging cloud technologies and modern development practices. Roles and Responsibilities:

• Designed and implemented a new payment method using C# and ASP.NET Core Web API, improving client onboarding efficiency across priority regions.

• Developed scalable, secure APIs using ASP.NET Core and Entity Framework Core, enhancing integration speed by 30%.

• Built modular and maintainable microservices leveraging .NET Core Dependency Injection, Configuration Management, and API Versioning.

• Optimized database interactions using Azure Cosmos DB and Entity Framework Core to achieve low-latency data access.

• Enhanced error handling using custom middleware and exception filters, reducing system downtime by 25%.

• Automated monitoring and logging using AWS ECS, IAM roles, and Amazon CloudWatch.

• Migrated PayPal plugin to LUMOS Connector, leveraging .NET Core microservices to boost transaction reliability.

• Refactored legacy PrivOps functionalities into a secure microservice, implementing React frontends integrated through secure API gateways.

• Transitioned 12+ services and 35+ plugins to CloudAuth using secure OAuth flows and enhanced API security policies.

• Applied best practices for code refactoring, improving development cycles and reducing operational overhead. Tech Stack: C#, .NET Core, ASP.NET Core, Entity Framework Core, ReactJS, AWS ECS, DynamoDB, CloudWatch, IAM, GitHub. Connector Fleet Separation

Description: Developed and optimized backend services for data ingestion, file uploads, and parallel processing using C#/.NET Core and AWS Fargate.

Roles and Responsibilities:

• Designed scalable APIs using ASP.NET Core Web API for file processing, improving throughput and request handling.

• Optimized AWS Lambda backend functions with .NET Core, improving backend performance and resource utilization.

• Built an in-memory cache using .NET MemoryCache for reducing redundant processing and improving API latency.

• Designed CI/CD pipelines using AWS CDK and Hydra workflows for smooth deployments.

• Integrated SQS-based task distribution and parallel Lambda executions to reduce request processing time significantly.

• Enhanced test coverage with NUnit and SpecFlow, ensuring deployment reliability and minimizing production issues. Tech Stack: C#, .NET Core, AWS Lambda, Fargate, SQS, DynamoDB, ECS, CDK, NUnit, SpecFlow, Jenkins, GitHub PSXTOpsReport

Description: Automated operational reporting and SLA tracking solutions, minimizing manual workloads and enhancing accuracy using C# and .NET Core.

Roles and Responsibilities:

• Automated report generation processes with C#/.NET Core, Azure Functions, and AWS S3, improving reporting timelines.

• Designed and integrated XWiki pages for team collaboration and risk tracking.

• Refined backend processing logic, enhancing reporting flexibility and reducing system dependencies.

• Reduced manual effort by automating redundant operational tasks, increasing productivity by 50%. Tech Stack: C#, .NET Core, AWS Lambda, AWS S3, XWiki, NUnit, Jenkins, GitHub Texas Tech University Graduate Assistant Intern February 2021 – March 2022 University Website Management

Description: Developed, maintained, and optimized university websites and administrative tools using C#/.NET Core and ReactJS. Roles and Responsibilities:

• Provided technical support for software updates across systems.

• Built dynamic web pages with ReactJS and ASP.NET Core MVC, enhancing usability and user experience.

• Developed backend APIs and tools using C#/.NET Core and Entity Framework Core.

• Improved query performance and optimized MySQL database interactions.

• Worked closely with stakeholders to translate requirements into technical solutions. Tech Stack: C#, .NET Core, ASP.NET Core MVC, ReactJS, Entity Framework Core, MySQL, GitHub, Visual Studio LTIMindtree Full-Stack Engineer October 2019 – January 2021 UNIFY (SIM Management and Quality Management)

Description: Developed a SIM Management and Quality Management System for the Gulf region using C# and ASP.NET Core. Roles and Responsibilities:

• Designed modular SIM management modules using ASP.NET Core Web APIs and Angular frontend.

• Implemented robust error handling and transaction management with SQL Server and Entity Framework.

• Developed dynamic and reusable frontend components using Angular and TypeScript.

• Ensured data consistency through stored procedures and transactional rollbacks. Tech Stack: C#, .NET Core, ASP.NET Core Web API, Entity Framework Core, Angular, SQL Server, GitHub TripAdvisor Web Application

Description: Developed a responsive customer portal for registration, login, and discount coupon management using ASP.NET Core and Angular.

Roles and Responsibilities:

• Built secure authentication flows with JWT-based token authentication in .NET Core.

• Integrated Angular frontend with ASP.NET Core Web API backend for seamless customer operations.

• Designed an automated discount system based on region and user profile.

• Performed backend optimizations such as caching, query tuning, and session management. Tech Stack: C#, .NET Core, Angular, Entity Framework Core, SQL Server, JWT, GitHub, Selenium Elite Career Hub Software Engineer May 2017 – September 2019 PeopleSoft HRIS Application

Description: Developed and maintained an HRIS system for employee data management using C#/.NET and SQL Server. Roles and Responsibilities:

• Built employee onboarding and management modules with C#/.NET Web Forms and SQL Server backend.

• Enhanced data security and role-based access control features.

• Migrated legacy modules to .NET Core microservices architecture. Tech Stack: C#, .NET Framework, .NET Core, SQL Server, Azure DevOps, GitHub Inventory Management System

Description: Built a cloud-based system for real-time inventory tracking, alerting, and reporting across multiple warehouses. Roles and Responsibilities:

• Designed a scalable serverless backend using Azure Functions, improving operational efficiency by 30%.

• Integrated real-time inventory alerts via Azure Event Grid to prevent stock-outs.

• Optimized database design for faster queries and cost-effective scaling. Tech Stack: Azure Functions, Azure Cosmos DB, Azure Storage, .NET Core, ReactJS. Education

Texas Tech University — Master of Science in Computer and Information Sciences Lubbock, Texas Aug 2021 – Dec 2022

Hindustan University — Bachelor of Technology in Computer Science Engineering Chennai, India Aug 2015 – May 2019

Certifications

Cloud Computing & Virtualization Specialist

• Demonstrated expertise in designing, deploying, and managing scalable cloud environments and virtualized infrastructure. Anvil Security Certification

• Validated skills in secure application development, authentication mechanisms, encryption, and risk mitigation strategies.

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