Modernizing Legacy Applications with Microservices on Azure – 12 to 18-Month Engagement

Overview:

Transform your legacy applications into scalable, cloud-native systems with Singlet's Modernization Service. This full-cycle consulting service reengineers monolithic .NET systems into microservices-based architectures using modern .NET, REST APIs, Docker, and Azure DevOps CI/CD — all aligned both Microsoft’s Cloud Adoption Framework (CAF) and Well-Architected Framework (WAF). From technical debt analysis to containerized deployment and cloud readiness, we guide your journey to a future-proof, maintainable, and performant architecture.

What We Offer:

We provide an end-to-end reengineering program for legacy applications that includes: • In-depth codebase and architecture assessment • Modernization to .NET 6/7 using microservices architecture • Service isolation, CI/CD automation, and cloud-native deployment • Integration of front-end with modern web frameworks and ASP.NET Core • Consulting on best practices, scalability, and DevOps enablement

💡 We also include expert-level application audit and architectural guidance throughout the engagement — a service typically offered separately as high-value consulting, provided here at no additional cost.

Key Benefits:

• Future-Proof Architecture: Migrate to .NET latest with loosely coupled, scalable microservices. • Improved Maintainability: SOLID principles, repository patterns, and isolated services ease maintenance and onboarding. • Cloud-Native Ready: Containerized services, async processing, and messaging integration (e.g., RabbitMQ) for scalability. • Performance Boost: Modernized database and async services improve response times and scalability. • Enterprise DevOps: Azure DevOps CI/CD for seamless testing, deployment, and monitoring.

Modernization Phases:

Phase 1: Codebase Analysis & Planning (2 months) • Application & dependency audit • Microservice boundary design • Technology stack & DevOps strategy Phase 2: Migration to .NET 6/7 (6–8 months) • Refactor core modules • Introduce dependency injection, async programming • Redesign database layer with multi-schema support Phase 3: Microservices Isolation & Cloud Deployment (4–6 months) • Develop and containerize services: Inventory, Order, Customer, Notifications • Implement service communication via REST APIs and message broker • Deploy to Azure with autoscaling and monitoring Phase 4: Testing, Optimization & Handover (2–4 months) • End-to-end QA, performance tuning • CI/CD setup using Azure DevOps • Documentation and training

Deliverables:

• .NET latest codebase with modular microservices • Azure-ready deployment of containerized services • Modern UI built with React and ASP.NET Core • Azure DevOps CI/CD pipelines • Integration with RabbitMQ and SQL Server • Application modernization report and roadmap

Ideal For:

• Organizations with aging .NET Framework applications • Teams looking to migrate from monolith to cloud-native • Enterprises seeking maintainable, high-performance, scalable systems

About Singlet Ltd.

Singlet Ltd. specializes in modernizing legacy systems with secure, scalable, and DevOps-enabled cloud architectures. We combine deep technical expertise with strategic consulting to help businesses build future-proof solutions on Azure. 📧 Contact: info@singlet.dev 🌐 Website: https://singlet.dev