Open to opportunities

Kaleeswaran Nagendran

@kaleeswarannagendran

Message

I architect Azure, AWS, .NET, and Sitecore platforms that modernize enterprise systems at scale.

India

Message

What I'm looking for

I'm looking to architect secure, scalable cloud and data platforms, modernize legacy systems, and lead teams through high-quality delivery using Azure, AWS, .NET, Sitecore, Microsoft Fabric, DevOps, and Infrastructure-as-Code.

At TSI Technologies, I architect an Azure-hosted .NET platform serving more than 4 million learners across 30 countries. I replaced a monolithic on-premises application with Azure Container Apps microservices, cutting release cycles by 70% while supporting 500K+ daily assessment events at 99.98% uptime.

Across Sutherland and Accenture Digital Studio, I've delivered cloud-native .NET, Azure, AWS, and Sitecore solutions for healthcare, financial services, retail, and publishing organizations. My work includes hybrid Azure–AWS integrations, Sitecore XP/XC headless implementations, and digital platforms serving 8M+ monthly page views.

I turn complex business requirements into practical architecture through C4 diagrams, OpenAPI specifications, data-flow models, low-level designs, and clear technical standards. I've led delivery teams, mentored developers, and established reusable patterns that improve quality, onboarding, and deployment reliability.

More recently, I've focused on Microsoft Fabric Lakehouse platforms, self-service analytics, data governance, and Infrastructure-as-Code with Terraform and Bicep. I enjoy modernizing legacy systems while building secure, scalable foundations for future delivery.

Experience

Work history, roles, and key accomplishments

Current

Principal Technical Architect

Current

TSI Technologies

May 2024 - Present (2 years 3 months)

Architected a microservices platform on Azure Container Apps, replacing a monolithic on-premises application and reducing release cycle time by 70%. Designed event-driven assessment pipelines ingesting 500K+ daily events, achieving 99.98% uptime.

Azure Container Apps ASP.NET Core Azure Service Bus Event Grid Azure Event Hubs Azure Functions Azure SQL Terraform Bicep Azure DevOps GitHub Actions Domain Driven Design CQRS Event Sourcing Microservices API Management GDPR ISO 27001

Solution Architect

Sutherland

Apr 2021 - May 2024 (3 years 1 month)

Architected and delivered enterprise-grade .NET solutions across healthcare and financial services, serving 10,000+ end users. Designed scalable architectures incorporating CQRS, Event Sourcing, and DDD, reducing downtime by 40%.

C#ASP.NET Core Microservices CQRS Event Sourcing Domain Driven Design Azure AWS AKS Azure SQL Azure DevOps RDS

Lead Solution Architect

Accenture

May 2014 - Mar 2021 (6 years 10 months)

Delivered Sitecore XP 9 and XC 10 headless implementations using Sitecore JSS and Next.js for publishing clients, serving 8M+ monthly page views. Architected RESTful .NET Core microservices and introduced CI/CD pipelines, cutting deployment failures by 60%.

Sitecore Jss Next.js .NET Core RESTful Services Azure SQL Azure Cognitive Search Azure DevOps Docker CI CD

Senior .NET Developer / Architect

Infosys

Feb 2011 - May 2014 (3 years 3 months)

Designed and built RESTful Web API services integrating SAP, Salesforce, and mainframe systems. Led a team in replatforming a UK insurance portal to ASP.NET Core, improving page load times by 55%.

ASP.NET MVC Web APIs ASP.NET Core Azure SQL NUnit xUnit SpecFlow SonarQube CI CD

.NET Software Engineer

Qmax Technologies

Apr 2007 - Feb 2011 (3 years 10 months)

Built C# / ASP.NET web applications and WCF services for core banking modules, integrating with Oracle and SQL Server. Developed SSRS and Crystal Reports dashboards for risk and compliance teams.

C#ASP.NET WCF Oracle SQL Server Crystal Reports