Application Modernization
At SUE, we help technology-driven organizations with legacy modernization to achieve their business goals. Our approach combines expert Professional Services with secure, in-house developed AI-driven software to reduce your project time by at least 50%, while minimizing costs, risk, and effort.
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Bridging the gap between legacy and cloud-native
For many organizations, legacy systems are still the backbone of daily operations. At the same time, they often limit agility, scalability, and innovation, while maintenance costs continue to rise (we call this The Legacy Tax). Outdated architectures make it difficult to integrate new technologies, introduce automation, or attract top talent. At a time when the performance of your application is equivalent to the performance of your business, modernizing legacy systems is essential.
At SUE, we have 28+ years of experience mastering both worlds. We understand the complexity of legacy environments and the limitless potential of cloud native solutions. That’s why we specialize in bridging the gap between the two. We start every project by understanding your business objectives and weighting potential benefits against cost and risk of disruption. From there, we guide you to choose the right modernization approach, from rehosting to refactoring, rearchitecting or completely rebuilding (components of) your application.
“Textkernel has taken a strategic step towards a future-proof IT infrastructure with SUE, allowing us to fully focus on innovation instead of infrastructure management. SUE’s substantive knowledge was decisive for us.”
Our approach to Application Legacy Modernization
Our Approach combines expert Professional Services with our secure, internally developed AI-driven software Re:App. With Re:App, we reverse-engineer legacy systems via an intuitive AI chat interface and generate documentation, while always keeping a human in the loop.
01 Reverse Architecting
We use AI-driven software to reverse engineer your applications and deliver a documented architecture and a concrete modernization plan.
02 Modernize
We transform your applications and infrastructure into cloud-native solutions that accelerate innovation and improve resilience and security.
03 Migrate
We move your workloads securely and efficiently to the cloud while maintaining performance and compliance.
04 Manage
We optimize and protect your environment continuously with proactive monitoring and managed services such as Linux, Kubernetes and even on-prem.
Common challenges in Application Modernization
Conventional companies are increasingly relying on software and data to service their customers. When applications no longer serve business requirements, legacy systems block new growth opportunities, and inflexible architectures can’t keep up with change, modernization becomes a strategic priority. However, modernizing legacy applications often brings challenges:
- Complex legacy architectures: spaghetti code and missing documentation make modernization risky and time-consuming.
- Skills and knowledge gaps: few engineers truly understand both legacy and cloud native environments. In many organizations, no one knows how an old application was built anymore.
- Fear of disruption: Business-critical systems cannot afford downtime, making risk-free transformation essential.
SUE tackles these challenges with two powerful distinguishing factors:
- Deep expertise in both legacy and cloud-native
With over 28 years of experience, our engineers understand both worlds like no other. We know how to stabilize legacy systems while working toward a cloud-native future, without disrupting business continuity. - Secure, AI-driven modernization software
Our in-house platform Re:App accelerates and de-risks modernization. Through a user-friendly chat interface, it automatically documents legacy architectures and codebases, creating the blueprint for transformation. AI agents then assist in containerizing, replatforming, or re-architecting applications, securely and at scale.
Systems Engineering Manager
Tidalis
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Innovators at heart
We are SUE, Netherlands’ most experienced cloud-native solution provider, supporting technology driven organizations with their digital transformation since 1997.
Our highly technical experts are innovators at heart and help our customers to innovate faster in their business. Our approach is rooted in efficiency (automate everything) and quality (first-time right). This mindset, driven by our DNA, naturally attracts customers where software is vital to their operations and who are eager to reach the next level.
We specialize in designing, building, and managing Cloud and IT infrastructures, offering a range of consultancy, professional, and managed services. In addition to our services, we provide innovative, in-house developed software solutions to allow our customers to modernize, deploy and run their business applications in any cloud, accelerating time-to-value and improving Developer Experience.
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