I am an experienced .NET Full Stack Developer with over 5 years of building and maintaining scalable web applications and enterprise solutions. I specialize in ASP.NET Core, C#, and Entity Framework on the backend, and Angular, TypeScript, and Bootstrap for responsive UI design. I have skills in microservices architecture, secure APIs with JWT, and test-driven development using xUnit and Moq. My experience spans Agile development practices, and I work extensively with GitLab for version control. Currently, I work at Principal Financial in the USA optimizing digital onboarding workflows and building high-performance microservices to support real-time financial transactions. Previously, I modernized legacy insurance systems and implemented microservices-based architectures at HCL in India. Throughout, I have focused on improving operational efficiency, security compliance, and delivering maintainable software for financial and insurance domains.

Karthik Davunuri

I am an experienced .NET Full Stack Developer with over 5 years of building and maintaining scalable web applications and enterprise solutions. I specialize in ASP.NET Core, C#, and Entity Framework on the backend, and Angular, TypeScript, and Bootstrap for responsive UI design. I have skills in microservices architecture, secure APIs with JWT, and test-driven development using xUnit and Moq. My experience spans Agile development practices, and I work extensively with GitLab for version control. Currently, I work at Principal Financial in the USA optimizing digital onboarding workflows and building high-performance microservices to support real-time financial transactions. Previously, I modernized legacy insurance systems and implemented microservices-based architectures at HCL in India. Throughout, I have focused on improving operational efficiency, security compliance, and delivering maintainable software for financial and insurance domains.

Available to hire

I am an experienced .NET Full Stack Developer with over 5 years of building and maintaining scalable web applications and enterprise solutions. I specialize in ASP.NET Core, C#, and Entity Framework on the backend, and Angular, TypeScript, and Bootstrap for responsive UI design. I have skills in microservices architecture, secure APIs with JWT, and test-driven development using xUnit and Moq. My experience spans Agile development practices, and I work extensively with GitLab for version control.

Currently, I work at Principal Financial in the USA optimizing digital onboarding workflows and building high-performance microservices to support real-time financial transactions. Previously, I modernized legacy insurance systems and implemented microservices-based architectures at HCL in India. Throughout, I have focused on improving operational efficiency, security compliance, and delivering maintainable software for financial and insurance domains.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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Language

English
Fluent
Javanese
Advanced

Work Experience

Software Developer at MetLife, USA
August 1, 2024 - June 14, 2024
Implemented Agile methodologies into the development lifecycle, fostering collaboration and ensuring efficient project execution with iterative improvements. Industrialized scalable web applications using Java, SpringBoot, and Microservices, enhancing performance and system reliability. Designed and constructed responsive front-end interfaces with React.js, Angular.js, HTML, CSS, and JavaScript, ensuring seamless user experience across multiple platforms. Optimized server-side components and business logic using JSP, JSTL, and Spring frameworks, improving application stability and reducing deployment cycles. Deployed and managed secure cloud-based applications on AWS services such as VPC, EC2, S3, CloudFront, and ELB, optimizing infrastructure efficiency. Maintained MongoDB databases, ensuring high availability and performance for managing large-scale application data.
Software Developer at MetLife, USA
August 1, 2024 - June 5, 2024
Implemented Agile methodologies to improve collaboration and project execution. Developed scalable web applications using Java, Spring Boot, and Microservices, enhancing performance and reliability. Created responsive front-end interfaces with React.js, Angular.js, HTML, CSS, and JavaScript, ensuring excellent user experience across platforms. Optimized server-side components with JSP, JSTL, and Spring frameworks to improve stability and deployment cycles. Managed cloud-based applications deployed on AWS services like VPC, EC2, S3, CloudFront, and ELB for infrastructure efficiency. Maintained MongoDB databases ensuring high availability and performance for large-scale application data.
Software Developer at MetLife
August 1, 2024 - June 22, 2024
Implemented Agile methodologies into the development lifecycle, fostering collaboration and ensuring efficient project execution with iterative improvements. Industrialized scalable web applications using Java, Spring Boot, and Microservices to enhance performance and system reliability. Designed and constructed responsive front-end interfaces with React.js, Angular.js, HTML, CSS, and JavaScript, ensuring a seamless user experience across multiple platforms. Optimized server-side components and business logic using JSP, JSTL, and Spring frameworks to improve application stability and reduce deployment cycles. Deployed and managed secure cloud-based applications on AWS services including VPC, EC2, S3, CloudFront, and ELB, optimizing infrastructure efficiency. Maintained MongoDB databases to ensure high availability and performance for managing large-scale application data.
.Net Full Stack Developer at Principal Financial
January 1, 2024 - Present
Optimized digital onboarding workflows with ASP.NET Core Web APIs and React.js interfaces, reducing account setup time by 30% and improving customer acquisition. Engineered high-throughput transaction handling using Cosmos DB and Redis Cache, improving latency by 50%. Streamlined release cycles with GitHub Actions and GitLab CI/CD pipelines, embedding NUnit tests and blue-green deployments, reducing deployment risks and shortening regulatory update delivery time by 25%. Enhanced data security with role-based access controls leveraging Azure Key Vault and API Management, ensuring compliance with SOX and FINRA. Built microservices with ASP.NET Core, Entity Framework, and LINQ, reducing processing time by 30%. Implemented gRPC communication and JWT authentication, improving inter-service efficiency by 40%. Containerized microservices using Kubernetes, ensuring 99.9% system uptime. Led Agile development with Jira, achieving a 95% resolution rate for production-critical defects within sprin
Intern Software Developer at State Street, USA
January 1, 2024 - May 31, 2024
Designed and deployed microservices with Python (Flask) and Java (Spring Boot), integrated using AWS API Gateway, Lambda, and DynamoDB, improving system scalability and API latency by 40%. Led CI/CD automation using Jenkins and GitHub Actions, reducing deployment errors by 35% and increasing release frequency for fintech services handling 500K+ requests monthly. Refactored monolithic legacy JavaScript into modular React components with Redux, enhancing UI performance, code maintainability, and user experience across all devices and browsers. Implemented Spring Security with JWT and OAuth2, reducing unauthorized access by 60% and meeting OWASP compliance. Tuned MongoDB indexes and queries to reduce response times by 35%, supporting high-volume transactional data pipelines for real-time analytics in customer insights dashboards. Collaborated with cross-functional Agile teams in bi-weekly sprints, delivering 10+ high-priority user stories per sprint and consistently exceeding sprint veloc
Intern Software Developer at State Street, USA
January 1, 2024 - May 31, 2024
Designed and deployed microservices with Python (Flask) and Java (Spring Boot), integrated using AWS API Gateway, Lambda, and DynamoDB, improving scalability and reducing API latency by 40%. Led CI/CD automation with Jenkins and GitHub Actions, reducing deployment errors by 35% and increasing release frequency for fintech services handling over 500,000 requests monthly. Refactored legacy JavaScript into modular React components with Redux, boosting UI performance and maintainability. Implemented Spring Security with JWT and OAuth2, reducing unauthorized access by 60% and meeting OWASP standards. Tuned MongoDB indexes and queries, cutting response times by 35% to support real-time analytics. Collaborated in Agile bi-weekly sprints, delivering 10+ user stories per sprint and exceeding KPIs. Developed Swagger API documentation and used Postman for endpoint validation, improving onboarding speed and reducing integration issues.
Intern Software Developer at State Street
January 1, 2024 - May 31, 2024
Designed and deployed microservices with Python (Flask) and Java (Spring Boot), integrated using AWS API Gateway, Lambda, and DynamoDB, improving system scalability and API latency by 40%. Led CI/CD automation using Jenkins and GitHub Actions, reducing deployment errors by 35% and increasing release frequency for fintech services handling 500K+ requests monthly. Refactored monolithic legacy JavaScript into modular React components with Redux, enhancing UI performance, code maintainability, and user experience. Implemented Spring Security with JWT and OAuth2, reducing unauthorized access by 60% and meeting OWASP compliance. Tuned MongoDB indexes and queries to reduce response times by 35%, supporting high-volume transactional data pipelines for real-time analytics in customer insights dashboards. Collaborated with cross-functional Agile teams in bi-weekly sprints, delivering 10+ high-priority user stories per sprint and consistently exceeding sprint velocity KPIs. Developed Swagger docu
.Net Full Stack Developer at HCL, India
July 1, 2022 - August 18, 2025
Modernized legacy insurance policy management system by re-architecting frontend with Angular and backend using ASP.NET MVC and Razor Pages, accelerating policy issuance by 45% and reducing escalations by 25%. Designed microservices based on Domain-Driven Design and Event Sourcing to maintain transaction history compliant with PCI DSS and SOX. Developed modular enterprise web apps using C#, ASP.NET MVC, and Bootstrap, improving operational efficiency by 35%. Created responsive UIs using TypeScript, HTML5, and CSS3, reducing bounce rates by 20%. Implemented microservices architecture for decoupling financial workflows, increasing maintainability and scalability. Automated cloud infrastructure provisioning and deployments with Azure DevOps and Terraform, cutting environment setup time by 60%. Practiced Test-Driven Development with xUnit and Moq, achieving 85% code coverage and reducing defects by 30%. Led UI migration from AngularJS to Angular 13 with Material UI, boosting performance an
Software Developer at Intex Technologies, India
January 1, 2019 - July 31, 2022
Worked in Agile teams, following SDLC best practices to develop high-quality software solutions aligned with client requirements and industry standards. Designed, developed, and maintained scalable applications using Java, Spring Framework, Spring Security, JPA, and Node.js, enhancing back-end functionality and security. Exploited J2EE technologies, including JavaBeans and JDBC, to build efficient server-side components, improving web application reliability and performance. Created responsive front-end interfaces with TypeScript, Bootstrap, and jQuery, optimizing user experience and engagement. Deployed and managed over 10 applications on Azure cloud infrastructure, optimizing scalability, reliability, and cost efficiency. Configured and maintained 5+ Apache Tomcat servers for enterprise application deployment, ensuring seamless performance and high availability. Managed relational databases like MySQL and SQL Server, ensuring data integrity and improving query performance for enhance
Software Developer at Intex Technologies, India
January 1, 2019 - July 31, 2022
Worked in Agile teams following SDLC best practices to deliver high-quality software aligned with client requirements. Designed, developed, and maintained scalable applications using Java, Spring Framework, Spring Security, JPA, and Node.js to enhance backend functionality and security. Utilized J2EE technologies like JavaBeans and JDBC for efficient server-side components, improving web application reliability. Created responsive front-end interfaces with TypeScript, Bootstrap, and jQuery to optimize user engagement. Deployed and managed over 10 applications on Azure cloud infrastructure, enhancing scalability and cost efficiency. Configured and maintained Apache Tomcat servers to ensure enterprise application availability. Managed relational databases like MySQL and SQL Server to maintain data integrity and improve query performance. Automated CI/CD pipelines with Jenkins to streamline integration and deployment processes.
Software Developer at Intex Technologies
January 1, 2019 - July 31, 2022
Worked in Agile teams following SDLC best practices to develop high-quality software solutions aligned with client requirements and industry standards. Designed, developed, and maintained scalable applications using Java, Spring Framework, Spring Security, JPA, and Node.js to enhance back-end functionality and security. Utilized J2EE technologies, including JavaBeans and JDBC, to build efficient server-side components, improving web application reliability and performance. Created responsive front-end interfaces using TypeScript, Bootstrap, and jQuery, optimizing user experience and engagement. Deployed and managed over 10 applications on Azure cloud infrastructure, optimizing scalability, reliability, and cost efficiency. Configured and maintained over 5 Apache Tomcat servers for enterprise application deployment, ensuring seamless performance and high availability. Managed relational databases like MySQL and SQL Server, ensuring data integrity and improving query performance for enha

Education

Master’s at Saint Leo University
August 1, 2024 - December 31, 2024
Master’s at Saint Leo University, Tampa, Florida
August 1, 2024 - December 31, 2024
Master’s at Saint Leo University, Tampa, Florida
August 1, 2024 - December 31, 2024
Master’s in Cyber Security at Saint Leo University, Tampa, Florida
August 1, 2024 - August 1, 2024

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Financial Services, Professional Services, Computers & Electronics