Modernize your most complex Legacy Systems with confidence




Grape Up delivers end-to-end legacy modernization—from feasibility analysis, through implementation to rollout—guiding every step with proven tools, a structured process, and deep enterprise experience.



G.Tx – modernization
platform


Comprehensive system knowledge, easily accessible via AI assistants to accelerate delivery.

G.Tx was built specifically to support legacy modernization effort.


AI-Assisted modernization process


A proven agile approach tailored for large-scale modernization, supported by AI to streamline lower-complexity coding and testing tasks.

Our modernization process is designed for large enterprise teams to iteratively modernize code with the support of GenAI.


Proven track record with complex enterprise systems


Decades of hands-on experience modernizing large, mission-critical applications in enterprise environments.

We leverage years of experience in migrating large legacy systems into modern cloud-native architectures. Our DevOps approach is crafted to ensuring systems run in production.


We focus on understanding both legacy and emerging system requirements, using AI-assisted Agile development to accelerate complex delivery processes.


Our approach: Three key phases


Reverse engineer for deep understanding


We reconstruct functional and technical specs directly from code—eliminating reliance on fragmented human knowledge.

Create a comprehensive knowledge base


AI-powered tools extract business logic and dependencies to create a shared knowledge hub for product, development, and support teams.

Accelerate with AI-assisted Agile development


We accelerate modernization with AI-assisted agile practices, and intelligent chatbots that give teams instant system insight—speeding up delivery and keeping focus on what matters.

G.Tx – Modernization platform


G.Tx Understand


Reverse engineered System Functional Analysis, delivering Business Requirements and Technical Design.

G.Tx Knowledge Hub


Knowledge Hub with all Project related information – from BRD, through technical design and user guide instructions.

G.Tx Developer Assistant


A developer chatbot connected to Project Knowledge Base, capable to answering Developer questions about legacy code, design, dependencies.

G.Tx User Assistant


An User Guide chatbot connected to Project Knowledge Base, capable to explaining how product works and how to operate it.

Modernization process


How we address key modernization challenges



Lack of Knowledge & Architecture Complexity


The critical Understand phase, supported by G.Tx, enables deep analysis of the legacy system’s complexity and functionality. It ensures continuous knowledge capture and retention for the emerging system. G.Tx gives teams access to forgotten or fragmented domain, architectural, and technical knowledge.


Ensuring Business Continuity


Our proprietary modernization approach maintains uninterrupted operations of both legacy and new systems while facilitating smooth user migration. The G.Tx Knowledge Hub ensures ongoing access to domain knowledge, supporting rapid onboarding and training of end users.


Costs and Resource Allocation


Our Agile modernization process, powered by G.Tx and GenAI tools, ensures optimal team allocation and efficient collaboration. The G.Tx Developer Assistant boosts productivity of engineering teams, while the G.Tx User Assistant enhances end-user effectiveness and work quality.


Data Migration Complexity


Throughout the migration process, data structure and complexity are continuously analyzed with the support of G.Tx, ensuring smooth and accurate data handling.


System Integrations


Knowledge gathered and stored in the G.Tx Knowledge Hub enables mapping and visualizing integrations between the legacy system and its ecosystem. Newly acquired knowledge about the modern system is also captured in G.Tx, significantly supporting the integration process.


Testing and Validation


Insights stored in the G.Tx Knowledge Hub allow for automated test documentation generation. Combined with GenAI tools, this enables efficient test case creation and execution for the new system. The G.Tx User Assistant also supports end users in conducting acceptance and integration testing.



Reach out to discuss your modernization challenges!








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The controller of the data within the scope provided above is Grape Up spółka z o.o. For full information about processing of personal data please visit Privacy Policy.