.NET Migration · Derby
.NET Migration in Derby
Migrating Derby applications from .NET Framework to modern .NET, where the first task is finding what has no successor. Several Framework technologies were not carried forward — server-side WCF, Web Forms, remoting — so an application built on one of those is facing a redesign of that layer rather than a port of it.
Why this comes up
The problem
The migration was estimated as a port, and a third of the application is built on a technology that no longer exists.
What you get
What we deliver
- Technologies without a direct successor identified before anything is estimated
- Replacement approach chosen for each, since the alternatives differ substantially
- Incremental migration behind a proxy where the application is too large to move at once
- Dependencies assessed for modern .NET support, including transitive ones
- Configuration and hosting reworked, as the models differ meaningfully
- Behaviour captured as tests before the layers producing it are replaced
Want this scoped for your business in Derby?
Thirty minutes, no charge, no sales script. You leave with a written summary of what .net migration would actually involve — whether or not you use us.
Working in Derby
East Midlands
Derby is an engineering city — aerospace, rail and automotive supply chains — so the work here skews toward integration with existing plant systems, quality and compliance workflows, and reporting that has to stand up to audit.
Most work here involves connecting shop-floor and plant systems to reporting the rest of the business can actually read, plus quality and compliance workflows that have to survive an audit.
Sectors we work with in Derby
- Advanced Manufacturing
- Aerospace
- Rail Engineering
- Automotive
- Logistics
What we work with
Technologies and platforms
- .NET
- C#
- ASP.NET Core
- YARP
Who we work with
Industries we serve
- Financial services
- Manufacturing
- Public sector
- Healthcare
- Enterprise software
Why us
Why Derby businesses choose Asionis
- Projects typically launched within 4–8 weeks
- No long-term contracts required
- All team members UK-based
- Dedicated account manager and development team
- Transparent reporting with monthly performance metrics
- Scalable from startup to enterprise
How we work
- Step 1
Free consultation
A 30-minute call to understand the problem. You keep the written summary either way.
- Step 2
Proposal
Scope, timeline and a fixed price, in writing, before anything starts.
- Step 3
Build
Short cycles with regular check-ins, so you see progress rather than hear about it.
- Step 4
Launch and support
We handle the go-live and stay available afterwards.
Other services in Derby
Looking for the full picture? See our .NET Migration services, everything we do in Derby or browse everything we do.
.NET Migration in Derby — common questions
- What genuinely does not port?
- Server-side WCF, Web Forms and remoting are the main ones. Clients and alternatives exist for some, and the honest position is that these represent a redesign of that layer — which is why finding them early matters more than any other assessment step.
- Can a large application move incrementally?
- Yes, by routing traffic through a proxy that sends migrated paths to the new application and everything else to the old one. Each release moves a section, both run together, and the migration proceeds without a single high-risk cutover.
- How do we handle dependencies?
- Audit them including transitively, because one unsupported package deep in the graph can block everything above it. Most widely used libraries have moved; the ones that have not are usually internal or long abandoned, and both need a decision.
- Is it worth doing at all?
- For an application under active development, generally yes — performance, hosting options and access to current tooling. For a stable system nobody is changing, the Framework remains supported and the migration may be effort spent for benefits nobody will use.
- Do you work with businesses across Derbyshire?
- Yes. We are based in Leicester, United Kingdom and work with clients throughout East Midlands, including Derby and the surrounding Derbyshire area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
- What kind of Derby businesses do you usually work with?
- Most work here involves connecting shop-floor and plant systems to reporting the rest of the business can actually read, plus quality and compliance workflows that have to survive an audit. Beyond that we work across Advanced Manufacturing, Aerospace, Rail Engineering, Automotive and Logistics.
- Do you cover the areas around Derby?
- Yes — we work throughout East Midlands, including Nottingham, Leicester, Loughborough, Birmingham. Derby is an urban area of roughly 260,000+, and we take on work across the wider Derbyshire region rather than the city boundary alone.
Talk to us about .NET Migration in Derby
A 30-minute call with someone who would actually work on it. No sales script, no obligation.
- Projects typically launched within 4–8 weeks
- No long-term contracts required
- All team members UK-based
- Dedicated account manager and development team
- Transparent reporting with monthly performance metrics
- Scalable from startup to enterprise