Artis Kolosovs

I've built and modernized production SaaS and enterprise applications at NTT DATA, Inserso Corporation, Aetna, and Potteroff across healthcare, federal IT, and client-service environments.

At NTT DATA, I modernized a tightly coupled enterprise platform, delivered 18+ versioned ASP.NET Core APIs, and built an AI-assisted knowledge experience using Azure OpenAI, Azure AI Search, and Semantic Kernel with citations, role filters, and human review. I improved frequently used API performance by approximately 30%, SQL reporting performance by approximately 40%, and reduced reported defects by approximately 25%.

At Inserso, I automated federal service workflows to reduce manual support effort by approximately 35% while preserving auditability and compliance-focused traceability. At Aetna, I led full-stack delivery for 10+ healthcare modules and created 25+ REST APIs supporting eligibility, benefits, provider, claims, and reporting workflows.

I take solutions from workflow design through architecture, implementation, testing, Azure deployment, observability, incident response, and continuous improvement. I use AI as a governed engineering capability, keeping source control, automated testing, architecture review, secure access controls, and human approval in place.