From Legacy to Agentic: A .NET Modernization Playbook
The Strangler Fig pattern in practice: using YARP reverse proxies to decouple monolithic routes live.
The definitive architectural guide to modernizing monolithic ASP.NET WebForms and .NET Framework 4.x legacy codebases into event-driven .NET 9/10 microservices augmented with Microsoft Semantic Kernel.
Key Architectural Findings & Guidelines
§01. The 4-Stage Modernization Playbook
Modernizing decades-old C# codebases requires a phased, risk-contained methodology:
Stage 1: Automated dependency graphing to identify high-coupling stored procedures and Windows Server dependencies.
Stage 2: YARP reverse proxy deployment to route traffic at the HTTP boundary.
Stage 3: Extracting domain services into .NET 10 Minimal APIs running inside Docker containers on Linux.
Stage 4: Augmenting modern endpoints with Microsoft Semantic Kernel plugins to expose legacy data to autonomous AI agents.
Enterprise Architecture & System Topologies
Production architectural schematics, AI agent pipeline models, and zero-trust security topologies verified in mission-critical environments.
Enterprise AI Security & Governance Enforcement Topology
Regulated Enterprise AIMulti-layer governance architecture showing pre/post model guardrails, tenant boundary isolation, token rate quotas, and immutable audit trails.
Client Impact & Success
Real feedback from engineering leaders, CTOs, and founders across 15+ years of production deployments.
“Vijay and the SHIVAM ITCS AI team didn't just execute the project - they elevated our entire platform. Their ability to architect complex multi-agent state machines, eliminate latency bottlenecks, enforce zero-hallucination guardrails, and create an intelligent multi-LLM orchestration layer was extraordinary. The final delivery was resilient, battle-tested, and far beyond expectations. One of the strongest AI systems engineering teams in the industry.”
From Legacy to Agentic: A .NET Modernization Playbook FAQ
Direct answers to architectural, technical, and operational questions.
Ready to Architect the Future of Your Enterprise?
Partner with SHIVAM ITCS to modernize legacy monoliths, deploy autonomous multi-agent meshes, or engineer zero-downtime cloud systems. Book an architectural discovery call with our lead architects today.