Legacy Application Modernization Services in Copenhagen

Do you want to reduce growing legacy maintenance expenses without completely revamping your app? Plan the transition to a new infrastructure without touching the existing design or code. As part of our plan for legacy application modernization, we offer:

• An evaluation of the existing infrastructure and possible cloud vendor options,
• A thorough migration plan (transferring legacy apps to data centers, the cloud, etc.),
• A phased roadmap with priorities, risks, and dependencies
• A “lift and shift” move to a new infrastructure that includes comprehensive assistance for post-migration.

Do you need to swiftly and effectively increase the scalability and performance of your app?

To maximize performance, we optimize apps for contemporary platforms. A solid plan for migrating legacy applications, whether it’s a desktop or web application, includes: 

• Moving on-premise servers to the cloud,
• Containerization with Docker,
• Analyzing the current environment to reveal hidden dependencies and constraints,
• Choosing a target platform or supplier,
• Targeted code changes to improve performance,
• Continuous assistance after replatforming, and more

As a result, your app will be effective and future-proof with timely improvements rather than requiring a total overhaul.

Do you need cleaner, faster code without changing how the application behaves? We restructure the internals while keeping functionality intact.

We rewrite and reorganize code lines to increase throughput, scalability, and performance:

• Codebase analysis,
• A refactoring plan (incremental, branch-based, or modular restructuring),
• Unit test creation, testing,
• Code cleanup: removing duplication and improving naming and structure,
• Preparing the handoff and comprehensive documentation.

Not sure which modernization path fits your system? Start with a clear picture of what you have before deciding what to change. Our AI Solution Accelerator™ automates much of the discovery work, so our engineers can focus on decisions rather than manual mapping. The assessment includes:

• An inventory of your applications, databases, and integrations
• Dependency mapping across modules, services, and data flows
• Code health analysis: hotspots, dead code, outdated libraries, and security risks
• A recommended modernization approach for each application, with trade-offs explained
• A phased roadmap with priorities, risks, and expected business impact

Is your monolith slowing down every release and making it hard to scale individual features? We redesign the architecture while preserving the business logic you’ve already invested in. As part of re-architecting, we offer:

• Decomposition of monolithic applications into independent services or modules
• Domain-driven design to define clear service boundaries
• Event-driven and API-first architecture for reliable communication between components
• Gradual migration using the strangler fig pattern, so old and new parts run side by side
• Cloud-native deployment with containers and orchestration

Has your legacy code reached the point where fixing it costs more than starting over? When the technology is obsolete or the codebase can no longer support your business, we rebuild the application on a modern stack. The rebuild includes:

• Extraction of business rules and workflows from the existing system and its documentation
• Selection of a modern technology stack based on your team’s skills and long-term goals
• Phased development, so critical functionality is delivered first
• Data migration with validation between the old and new systems
• Parallel running of both systems until the new one is fully verified

Are you maintaining custom software that a commercial product could now handle, or systems that barely anyone uses? Modernization sometimes means letting go. We help you replace or retire applications safely:

• Analysis of which applications are still used, by whom, and for what
• Comparison of custom software against SaaS or off-the-shelf alternatives
• Migration of data and users to the replacement platform
• Integration of the new product with your remaining systems
• Safe decommissioning, including data archiving and access removal