From custom software and cloud to consulting and nearshoring, Isatis is your complete IT partner. We build scalable, reliable solutions, from first concept to go-live.
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We modernise legacy applications step by step. Keeping what works, replacing what holds you back, without disrupting daily operations.
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Projects Delivered
500+
Older software can still be valuable, but it often becomes hard to maintain, extend or secure. We start with an honest look: what still works well, what costs you time and risk, and where modernisation will have the most impact.
The result is a phased plan, not a big-bang rewrite. We prioritise based on business risk and technical debt. Every step delivers working software, not just documentation.
We migrate component by component, so old and new can run side by side. Your teams keep working with familiar tools while we replace the underlying technology piece by piece.
Monolith to microservices, on-premise to cloud, outdated frameworks to modern stacks. We handle the migration without downtime and with rollback options at every stage. No all-or-nothing gambles.
Legacy systems often contain years of business logic that nobody fully documented. We take the time to understand those rules, extract them, and carry them forward into the new architecture. Nothing critical gets lost.
Our engineers work with your domain experts to validate that the modernised system does exactly what the old one did, plus more. Automated tests against the legacy behaviour give you that confidence before anything switches over.
The goal is not just to modernise, but to build something that will not become legacy again in five years. Proven technologies, clean architecture, and a design your own team can keep evolving long after we are done.
Security, performance and compliance are addressed as part of the modernisation, not as separate projects. The result is a system that is easier to maintain, cheaper to run, and ready for what comes next.
Questions about legacy modernization? Book a 15-minute call with us before getting started.
Schedule a callWe move ageing systems to current technology step by step, assessment, re-architecture and incremental migration, keeping the business logic you depend on and avoiding a risky big-bang rewrite.
It depends on scope, but we start with a short discovery phase and clear milestones, aiming to deliver value early and iterate from there in agreed steps.
Yes. We stay on for maintenance, iteration and support, treating what we build as a long-term product rather than a one-off delivery.
We are technology-agnostic and choose the stack that fits your needs and team, from modern web frameworks to cloud-native back-ends and integrations with your existing systems.
As an ISO 9001 and ISO 27001 certified partner, structured delivery and information-security practices (access control, secure development, auditing) are built into how we work, not bolted on afterwards.
Migrating and running workloads on modern cloud platforms. With cost, security and scalability in mind.
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