At a glance
Legacy sources: .NET Framework 2.0–4.8 · WebForms · WCF · WinForms (legacy) · VB.NET (legacy)
Modern targets: C# .NET 10 (LTS) · Golang · Rust · Read models · Event-sourced core where warranted
Typical timeline: 4 weeks to 6 months depending on scope
Project range: $10,000–$150,000
U.S. delivery: 100% U.S. citizen workforce, U.S.-soil delivery
What to know before you modernize
CQRS and event sourcing, where they fit
A .NET Framework upgrade does not need a new architecture by default. Most of an application stays CRUD: reference data, configuration, and supportive records are read and written in place, and a well-done CRUD model beats a poorly done event store. CQRS (Command Query Responsibility Segregation) and event sourcing are separate decisions, and each is applied inside the bounded context that needs it, never as a whole-system architecture. Where reporting fights the transactional schema, a read model or a reporting database is usually the honest answer. Where audit trails and collaboration matter, the core of that context can be event-sourced: business events such as an order being cancelled, with its reason, are recorded as they happen rather than overwritten. Neither pattern requires microservices or the cloud, and neither is chosen for raw performance. The recommendation is matched to your actual complexity, not CQRS-by-default.
Our Modernization Process
Our modernization begins with a comprehensive analysis of your existing .NET applications. We evaluate the architecture to identify areas for improvement, then migrate to C# .NET 10, Go, or Rust. Where reporting needs it, we add read models or a reporting database. Where audit trails and collaboration matter, we event-source the one bounded context that needs history; everything else stays a plain, well-tested CRUD model. Cross-platform compatibility across Mac OS X, Linux, and Windows is guaranteed, ensuring your applications are future-ready and optimized for modern cloud environments.
What an event-sourced core actually buys
Where a bounded context is event-sourced, the gains are specific: a record of what happened in business terms, with the reason it happened; answers to what was true on a given date; projections that feed reports and analytics without touching the write side; and a model that can be tested against the rules the business states for informed decision-making. They also reduce operational costs through optimized resource utilization.
Future-Ready by Design
Beyond the technical refactor, we prepare your systems for the future: faster, more responsive user experiences; continuous deployment and agile development practices; a deployment shape chosen for your operations, monolith or services, rather than by default; audit trails where compliance requires them; and a scalable foundation ready for further innovation. The result is an application your team can evolve confidently for the next decade.
Deliverables
- Migration to C# .NET Core / .NET 8+, Go, or Rust
- Read models where reporting needs them
- Event-sourced core where history matters
- Cross-platform build (macOS, Linux, Windows)
- Cloud-native deployment on AWS or Azure
Not sure where to start?
Start with a fixed-scope Legacy Software Assessment: a read-only review of your application’s source, database, configuration, logs, and architecture, ending in findings with evidence and a written recommendation. Quoted after the free 1-hour consultation; creditable toward a subsequent modernization project.