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.NET Migration · Leicester

.NET Migration in Leicester

Migrating Leicester 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 Leicester?

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.

Book a 30-minute call

Working in Leicester

East Midlands

Leicester is our home city. We are based here, most of our team lives here, and a good share of our clients are within a half-hour drive — which means site visits, workshops and hardware installs happen in person rather than over a call.

The most common briefs here are ecommerce for the city's textile and food manufacturers, booking systems for its large independent hospitality scene, and stock and logistics integration for distributors along the M1 corridor.

Sectors we work with in Leicester

  • Manufacturing
  • Textiles & Fashion
  • Logistics
  • Food & Drink
  • Retail
  • Higher Education

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 Leicester 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

  1. Step 1

    Free consultation

    A 30-minute call to understand the problem. You keep the written summary either way.

  2. Step 2

    Proposal

    Scope, timeline and a fixed price, in writing, before anything starts.

  3. Step 3

    Build

    Short cycles with regular check-ins, so you see progress rather than hear about it.

  4. Step 4

    Launch and support

    We handle the go-live and stay available afterwards.

.NET Migration in Leicester — 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 Leicestershire?
Yes. We are based in Leicester, United Kingdom and work with clients throughout East Midlands, including Leicester and the surrounding Leicestershire area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
What kind of Leicester businesses do you usually work with?
The most common briefs here are ecommerce for the city's textile and food manufacturers, booking systems for its large independent hospitality scene, and stock and logistics integration for distributors along the M1 corridor. Beyond that we work across Manufacturing, Textiles & Fashion, Logistics, Food & Drink, Retail and Higher Education.
Do you cover the areas around Leicester?
Yes — we work throughout East Midlands, including Loughborough, Nottingham, Derby, Coventry, Northampton. Leicester is an urban area of roughly 560,000+, and we take on work across the wider Leicestershire region rather than the city boundary alone.

Talk to us about .NET Migration in Leicester

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

Or reach us directly

07707 771599admin@asionis.com

Leicester, United Kingdom