Use Cases

Bring your existing applications into the AI era

vFunction helps teams modernize complex Java/.NET applications, reduce platform lock-in, and give AI coding tools the guardrails and context they need to modularize and rewrite apps at scale.

Full-Stack Windows Modernization

Modernize .NET Framework applications and convert SQL Server databases to PostgreSQL.

vFunction gives AI coding tools the context and guardrails they need to modernize large .NET systems with speed, accuracy, and control. 

vFunction lets you:

– Eliminate Windows dependencies, vendor lock-in, and license costs
– Upgrade .NET Framework to .NET 10
– Convert stored procedures to code
– Convert SQL queries to support cloud native databases
– Enhance AWS Transform for Windows for large, complex apps

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Modernize Large VM Apps to Containers

Move complex Java and .NET applications from VMs to containers faster.

vFunction helps teams transform complex VM-based monoliths into container-ready modular systems by powering AI coding tools with the context they need to modernize large existing applications.

vFunction lets you:

– Unblock stalled migrations
– Refactor applications into logical modules
– Extract or rewrite services and modernize technology stacks
– Quickly transform large legacy apps into container-ready systems
– Reduce tech debt, migration risk, and cost

Power AI-Driven Development for Existing Applications

Provide context, architecture, and deterministic refactoring skills for AI coding assistants.

vFunction lets you:

– Provide AI with domain context and architecture insight
– Add runtime awareness
– Prevent and reduce technical debt
– Execute deterministic refactoring with LLMs
– Reduce token consumption with specific, context-rich prompts

Learn About Kiro & ATX Integration

Generate Software Specs for Complex Apps

Let vFunction generate structured specs for complex applications enabling AI to rewrite your legacy code.

vFunction uses its runtime awareness and domain knowledge to generate specifications for each domain separately, resulting in modular, well architected, tech-debt free rewritten applications.

vFunction lets you:

– Create modular-target-state specifications for legacy Java and .NET apps
– Base spec generation on observed runtime flows and desired architecture
– Get verifiable code references for every generated feature
– Take refactoring into account to generate a tech-debt free architecture
– Generate integration tests to validate each rewritten module works as expected

Industries we serve

From ISV to enterprise: Modernizing the architecture of your most critical apps

Whether you’re an ISV managing complex product suites or an enterprise running decades-old core systems, the challenge is the same: applications so complex they feel too risky to modernize. Learn how vFunction helps overcome this roadblock.

Financial services

Modernizing notoriously complex applications

Complex applications make it hard to launch new products, personalize experiences, or respond quickly to market shifts.

vFunction accelerates modernization by modularizing monoliths and removing architectural debt, helping leading banks, insurers, and fintechs gain cloud-native scale and cost advantages while paving the way for GenAI adoption.

Automotive

Modernizing the software that drives the automotive industry

The rise of connected vehicles, self-driving cars, and automated factories puts software at the center of automotive innovation. Yet complex, legacy applications make it difficult to keep pace—slowing development, limiting scalability, and increasing operational risk.

vFunction accelerates the shift to cloud-native architectures that improve operational efficiency, enhance engineering velocity, and strengthen resilience across manufacturing facilities.

Manufacturing

Transforming manufacturing systems

Decades of accumulated technical debt make it difficult to modernize production systems, integrate smart factory technologies, and scale AI-driven automation.

vFunction accelerates cloud-native transformation by modularizing large Java and .NET applications to create a scalable, resilient foundation for modern manufacturing.

Travel

Ensuring unforgettable travel experiences

Travel and hospitality brands depend on seamless bookings and personalized experiences, yet many core systems remain monolithic and hard to evolve—slowing innovation and restricting agility.

vFunction’s GenAI-powered architectural modernization accelerates cloud-native transformation, speeding release cycles, enabling smarter personalization, and delivering more responsive digital experiences for today’s voyagers.

Consumer goods

Modernizing the applications behind global brands

Consumer goods brands depend on smarter production, accurate forecasting, and resilient supply chains—but many core systems remain overly complex and hard to change.

vFunction’s GenAI-powered architectural modernization creates the cloud-native foundation that enables smarter production, more accurate forecasting, stronger supply-chain control, and more responsive operations for global consumer brands.

Energy and utility

Transforming the applications that fuel energy innovation

Large, tightly coupled applications make it difficult for energy and utility providers to modernize critical infrastructure and advance initiatives like subsurface exploration and grid modernization.

vFunction’s GenAI-powered architectural modernization modularizes complex applications, enabling cloud-native architectures that provide the agility needed for next-generation energy and utility services.

Public sector

Transforming applications that power government at scale

Aging, tightly coupled systems make it difficult for public sector organizations to modernize critical services, improve reliability, and meet escalating security and scalability demands.

vFunction modularizes complex applications, enabling cloud-native architectures that improve reliability, strengthen the security posture, and accelerate the delivery of public services.

Product Release

Welcome to the Megalith. When applications outgrow monolith scale.

What is Modernization?

Application Modernization

Modernization is the process of transforming existing applications and infrastructure into higher-value, cloud-native services enabling teams to deliver value more quickly, frequently, intelligently and reliably to customers.

Infrastructure and code modernization

Infrastructure and code modernization focuses on:

• Upgrading frameworks (e.g., Java 6 to 17, .NET Core to .NET 8)
• Addressing security vulnerabilities
• Lowering licensing costs by moving to open source
• Shifting infrastructure from VMs to containers

Important—but not architectural modernization. These steps alone don’t make workloads cloud-native.

Architectural modernization

Architectural modernization focuses on:

• Converting monoliths into modular or microservices architectures
• Enabling workloads to utilize services like Amazon EKS, AWS Lambda, Azure Functions, and AKS
• Delivering elasticity, agility, and rapid innovation as promised by cloud migration

Architectural modernization is what unlocks the real benefits of the cloud.

vFunction Platform

Accelerate your monolith-to-microservices journey

Blog

No more excuses: AWS is funding modernization to unblock your cloud migration.

Partners

Modernize and migrate apps to
AWS, Azure, and GCP

Transform legacy applications into scalable, resilient cloud-native systems on the platform of your choice. Break down monoliths, reduce technical debt, and accelerate migration—while taking advantage of advanced services and funding programs from leading cloud providers.

Azure

Modernize to AKS, Azure Spring Apps, Azure Functions, take full advantage of Azure Compute

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AWS

Modernize your legacy .NET aoos, Move off VMware to Modern AWS Services like Lambda, adopt EKS.

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Google

Modernize your apps and move workloads to scalable GKE or GKE enterprise environments.

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“vFunction addressed a critical need for us to take thousands of our enterprise applications and modernize them through the use of an extremely powerful automated platform."

Flavio Fasano

Senior Solution Architect, Intesa Sanpaolo Bank

Resources

Blog
Five application modernization pitfalls —and how to avoid them
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gartner cool vendor
Blog
vFunction recognized as a 2024 Gartner® Cool Vendor
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Case Study
Trend Micro uses vFunction to refactor critical monolith for AWS
Read More

Get Started with vFunction

Transform your workloads to cloud native—and watch velocity, resiliency, and scale accelerate at your organization.