.NET Legacy Modernization Services
.NET Migration Paths
Every legacy application has its own architecture, dependencies, and business requirements. We identify the most suitable migration path based on your existing technology stack, application complexity, and long-term goals.
.NET Framework to .NET 10 Migration
Our .NET developers migrate applications built on .NET Framework to modern .NET, updating their architecture and adapting existing code to the current platform. We analyze framework-specific dependencies, identify incompatible libraries and APIs, refactor components that rely on legacy functionality, and update application configurations.
ASP.NET Web Forms to Blazor / MVC Migration
If you’re looking to modernize a legacy ASP.NET Web Forms application, we can replace outdated UI technologies with Blazor or ASP.NET Core MVC. Our ASP.NET developers analyze existing pages, controls, event handlers, and application workflows to determine which components can be reused and which need to be rebuilt.
WCF to gRPC / REST Migration
As part of our legacy application modernization services, we migrate Windows Communication Foundation (WCF) services to REST APIs, gRPC, or a combination of both. Our engineers rebuild service endpoints, adapt data contracts, implement API authentication, and update connected applications. Where necessary, we introduce compatibility layers to support a gradual transition.
VB6 to .NET Migration
If you’re looking to replace a legacy Visual Basic 6 application with a modern .NET solution, our developers can help. We analyze existing source code, database structures, integrations, and business workflows to determine which components can be converted, refactored, or rebuilt. We also modernize desktop interfaces and migrate data access logic while preserving essential business rules and functionality.
.NET 8 / 9 to .NET 10 Upgrade
If you’re looking to upgrade an application built on .NET 8 or .NET 9 to .NET 10, our engineers can help. Drawing on our .NET development expertise, we review project configurations, NuGet packages, third-party dependencies, and runtime compatibility. We update target frameworks, resolve deprecated API usage, and run regression and integration tests to verify existing functionality.
Monolithic .NET Applications to Microservices
If your .NET application has become difficult to maintain or scale as a monolithic system, we can help modernize its architecture. Our engineers identify suitable service boundaries, separate business capabilities into independent services, and implement APIs and integrations to support a gradual transition.
Our Legacy .NET Modernization Projects
Our experience includes several legacy modernization projects, from replacing outdated business systems and modernizing application architectures to migrating established products to modern web technologies.
- .NET Core
- Angular
- .NET
- HTML5
- JavaScript
- C#
- .NET
- VSTO
- Office.js
How We Modernize
We use a structured, phased approach to modernize legacy applications while keeping business operations and technical risks under control.
- 1
Assessment
We examine your application’s source code, architecture, dependencies, integrations, and infrastructure. Our engineers identify compatibility issues, technical debt, business-critical functionality, and potential migration risks.
- 2
Migration Plan
Based on the assessment, we define the target architecture and choose which components to migrate, refactor, or rebuild. We also plan data migration, integration updates, testing, and project phases around your technical requirements and business priorities.
- 3
Phased Migration
Our engineers migrate the application incrementally to minimize disruption to business operations. We can run legacy and modernized components in parallel, migrate modules independently, preserve integrations, and test functionality throughout the transition.
- 4
Support & Optimization
After migration, we help keep your modernized application stable, secure, and maintainable. Our engineers provide production monitoring, performance optimization, bug fixing, infrastructure updates, and further development as needed.
Meet the .NET Engineers Behind Your Migration
These are the engineers who assess, plan, and carry out .NET migrations at SCAND.
Victor K.
Head of System Solutions Department
Viktor
Head of .NET Development Department
Dmitry
Senior .NET Developer
Boris
Senior .NET Developer
Mikhail
.NET Developer
Two Ways to Start
We offer several engagement models to fit your migration scope, internal resources, and project requirements.
Fixed-Scope Pilot
A fixed-scope pilot is a limited engagement focused on a clearly defined part of your application. It allows you to evaluate SCAND’s technical expertise and approach to legacy modernization before committing to a larger project.
Dedicated Team
A dedicated team provides ongoing access to experienced developers and technical specialists for your modernization project. The team works alongside your organization, providing the engineering resources and expertise needed to handle migration activities and further application development.
Start with a Free Migration Assessment
Not sure which migration path is right for your application? Tell us about your current .NET environment, and our engineers will help you understand the modernization options, identify potential risks, and determine the next steps.
Trusted Software Development Company
For over 25 years, SCAND has been delivering secure, high-load software solutions for startups, SMBs, and global enterprises (including NASA, IBM, Cisco, FedEx, Bank of America, Siemens, and others). Our dedicated development teams support clients at every stage of the software development process — from idea and consulting to maintenance and support.
Why SCAND
Choose an engineering partner with extensive software development experience and the technical resources to handle complex modernization initiatives.
25+ Years of Software Engineering Experience
We have been delivering custom software solutions since 2000, working with businesses across multiple industries and technology domains.
250+ Engineers
Our multidisciplinary teams include .NET developers, software architects, business analysts, QA engineers, DevOps specialists, and project managers.
400+ Clients
We work with companies of different sizes, from growing technology businesses to established international organizations.
900+ Completed Projects
Our project experience covers enterprise platforms, business-critical applications, SaaS products, and complex software integrations.
Quality and Information Security
Our development and management processes follow internationally recognized standards for quality management and information security, certified under ISO 9001 and ISO 27001.
International Presence
SCAND has legal entities and business operations in the United States and Poland, supporting collaboration with clients across international markets.
Latest Reviews from Our Clients
Sr. Account Director Mid-Market
Coupa Deutschland GmbH
It was a great experience working with SCAND on e-Procurement projects during my time at OpusCapita. The team was professional and competent. Keep up the great work!
Managing Director
prodexa GmbH
The SCAND team has been an incredibly reliable and skilled development partner for jCatalog for many years, consistently delivering high-quality services with a proactive approach.
Product Manager
jCatalog Software AG (or OpusCapita GmbH)
Over the years of working together, the SCAND team has always been a reliable pillar of support for me. Along the way, we’ve built not only a strong professional relationship but also meaningful personal connections. It has truly been a pleasure collaborating with you.
Outsourcing Manager at Owlcat Games
Working with SCAND on customizing SourceGit was a genuinely positive experience. Their team was responsive, collaborative, and easy to work with throughout the project. We value their cooperative approach and would confidently recommend them as a reliable development partner.
Managing Product Owner at GIPmbh
We have been working with SCAND on the development of a custom Outlook Add-In that converts documents directly from Outlook and transfers them seamlessly into our software platform. We highly recommend them to anyone looking for a skilled and dependable software development team...
Chief Technology Officer
Wiztech Group
Great work on our products — web applications in the gaming domain. The SCAND software developers worked highly professionally and made valuable contributions to the successful implementation of every project they were involved in.
Sales & Marketing Manager, Smartstaff AS
Throughout our long-standing collaboration, the team has consistently delivered high-quality service. Over time, we’ve developed a strong and genuinely friendly working relationship, which has positively influenced the outcomes of our joint efforts.
Founder at Spin Pass
SCAND went above and beyond, and I was very satisfied with the result. Their team was communicative, patient, and took the time to fully understand the project. Above all, they were professional and easy to work with, and I would definitely recommend SCAND for their expertise and software development skills.
Founder of TreeNinjaAI
What might have taken 18 months was completed in about 6, with SCAND contributing for 3.5 months. Despite my non-engineering background, their support and modern AI capabilities enabled us to build unique features and integrations in a single application.
FAQs
