Modernize Legacy Software with AI

Transition aging software to modern, secure, maintainable platforms—while preserving the behavior your mission depends on.

Quanterion provides AI-assisted software modernization for complex and mission-critical legacy systems. Our agentic modernization pipeline uses Large Language Models (LLMs) to analyze, translate, and refactor legacy applications while reducing the time, manpower, and cost associated with traditional modernization efforts. This effort was performed under funding from the Missile Defense Agency (MDA).

For sensitive environments, the entire process can operate locally and air-gapped, keeping proprietary and controlled source code within your infrastructure. The approach is designed to preserve critical legacy semantics—including real-time behavior, strict type systems, concurrency models, interfaces, and architectural dependencies—while transitioning applications to modern languages and platforms.

Integrated behavioral-equivalence testing and verification compares modernized software against the legacy implementation to help ensure functional performance is preserved.

Legacy applications remain essential across government, defense, industrial, and enterprise environments, but maintaining them becomes increasingly difficult as technology and workforce expertise evolve. Common challenges include:

  • Declining availability of developers experienced in legacy languages
  • Loss of institutional knowledge about system behavior and design intent
  • Increasing cybersecurity vulnerabilities, including AI-assisted threat discovery
  • Difficulty integrating with modern systems, APIs, and architectures
  • Accumulated obsolete or unused code that increases complexity
  • Cryptographic technologies that are not prepared for a post-quantum environment
  • Higher maintenance costs and longer system downtime
  • Significant cost and risk associated with modifying aging software

Quanterion helps organizations preserve proven functionality while creating a modern foundation for security, interoperability, sustainment, and future capability growth.

Quanterion Solutions Incorporated is a small technology solutions provider based in New York State with a long history of supporting organizations like yours in both military and commercial environments. We are a data science company specializing in software development, cybersecurity, and systems engineering.  Our team of subject matter experts develop data-driven solutions for local and international customers ranging from defense to healthcare.

The company delivers solutions through government contract vehicles (e.g., SBIR, BAA, etc.) and direct subcontracting and consulting engagements. Quanterion’s cross-domain expertise enables the delivery of innovative solutions to complex technical challenges that span multiple disciplines – a capability that has driven decades of growth and a reputation for excellence in the defense and intelligence communities.

Contact Quanterion Solutions at IoT@quanterion.com or call (315) 732-0097 to explore customized software moderniation solutions.

Let Quanterion’s software modernization expertise lead to your breakthrough for fast, efficient, and secure technology.

Contact our team of experts at IoT@quanterion.com to get started today.