Legacy Modernization Services without stopping delivery
Our legacy modernization services change an aging platform while it keeps serving the business. Delivery never stops, and the old system is retired only once the new one carries the load.
68%reduction in diagnostics report creation time for a vehicle diagnostics provider
When to choose legacy application modernization
It is the right service when the situation sounds like this.
- The old system still runs the business, and nobody wants to touch it.
- We cannot freeze features for a year while it gets rewritten.
- Half the team’s week goes into keeping the legacy code alive.
What our legacy modernization services include
- Incremental replacement instead of one risky cut-over
- Data migration verified before anything is switched off
- A clear case for what gets rewritten and what does not
How it works
- 1
Tell us the outcome
The product, the platform problem or the delivery brief. A complete specification is not required.
- 2
We propose the first step
Discovery, a defined build or a smaller first phase, with the commercial model that fits it.
- 3
Start with the smallest useful commitment
Usually discovery or a first delivery phase, so the decision to continue rests on real work.
- 4
Build with named owners
Named people, agreed measures and a release cadence you can hold us to.
Engagement models
A Statement of Work covers the build. Fixed price when the scope is settled, time and materials when it genuinely is not. If nobody can write the scope yet, discovery is contracted first and separately.
- Fixed price
- Best for: A defined build, migration, feature or support scope
- How it works: Statement of Work with agreed scope, acceptance and schedule
- Time and materials
- Best for: Evolving product work where scope is still being learned
- How it works: Statement of Work with a rate card, a capacity commitment and reporting against it
Case studies
Legacy migration in practice: platforms we migrated, rebuilt or moved off legacy software.
68% Reduction in diagnostics report creation timeAssembled a five-person team in two weeks to build a mobile diagnostics app with live OBD-II and CAN bus data.Vehicle Diagnostics Platform, Western Europe
40% Development cost reductionSupplied a six-person team of developers, QA, PM, BA and designer that migrated the platform from Blazor to Angular and has run delivery since 2022.ING+, Germany
Full system Rebuild in compliance with standardsStabilised and rebuilt the architecture of an outcome-based education platform with a three-person team deployed in 14 days.OBE
What clients say
“Intelvision’s project management is consistently strong.”
Christopher WeindlCEO, ING+
“Intelvision provided solid tech expertise and the ability to come up with an effective software architecture.”
Kyle McLoughlinClient, Dublin
“They effectively prioritized our business needs, adhering to the budget, which we found valuable.”
Pavlo PotichnyiCEO, Swiss Scholar
Legacy modernization questions
Should we rewrite our legacy system or refactor it?
Almost never rewrite. Big-bang rewrites pause value delivery and bet everything on a future cutover. The disciplined route is a phased transformation where each phase retires risk and pays for itself.
How do you modernize a legacy application without stopping delivery?
By sequencing the migration into self-funding phases that ship alongside the roadmap — no feature freeze, no cutover cliff, with rollback and safety strategy built into every phase.
Can you migrate a monolith to microservices?
Yes, when it is justified. Target architecture choices are recorded as decisions with rationale — including when a modular monolith beats microservices for your stage.
More software development services
Software development overviewDeep Discovery
The first paid step when the brief is not settled yet. You get the scope, the architecture direction and the delivery plan the build will actually run on.MVP and product development
A first production release that real users can judge, not a prototype. The smallest version that proves the product, on an architecture ready for the next one.Platform development
Long-lived systems with real data, real integrations and more than one audience. One cross-functional team holds the architecture and runs delivery release after release.Major features and integrations
A defined change inside a system you already run, built to your codebase, your release process and your constraints, with the integration risk found before launch.Support and managed improvement
After launch the work changes shape but does not stop. Spare capacity goes into improvement rather than caretaking.
Ask about legacy modernization services
The product, the platform problem or the delivery brief. We will tell you whether it needs discovery, a defined delivery phase, or a different route entirely.
Talk to an expert
Yurii Kotula
CEO and Engineering Leader
Your first call is with Yurii. Send the form, or pick a time in his calendar.
Book a call with Yurii