Our 2F Framework moves from operational support through discovery, planning, build, and long-term optimization. The same team runs all five phases. The business keeps running throughout.
We take over operational support before any modernization begins. L1/L2/L3 coverage, defined SLAs, incident management, knowledge capture. This phase runs throughout the entire engagement.
We recover the knowledge locked inside the system. Codebase analysis, stakeholder interviews, AI-assisted comprehension, reverse engineering, data flow mapping. The output is documented and owned by the client.
We evaluate five paths against the business case: Refactor, Replatform, Rearchitect, Rebuild, Replace. The deliverable is a documented recommendation, target architecture, and phased roadmap. The specification belongs to the client.
Legacy components replaced incrementally while the system keeps running. API-first design, contract testing, parallel running. The business does not pause while the architecture changes.
The same team that built it supports it. Managed services, continuous improvement, performance tuning. Institutional knowledge does not leave when the project closes.
Most modernization partners work around legacy complexity. We work through it. Every platform below has been modernized in production, under pressure, with no operational disruption.







Modernization projects fail at the integration, not the rewrite. Legacy partners will not change their interfaces. File-based feeds, message queues, protocol translations, API facades: we build those bridges as part of the engagement.
Once those bridges are in place, the constraints that shaped the old architecture stop shaping the new one. The organization can move again.

MALTA (a custom-built Association Management System) replaced the mainframe and off-the-shelf software with a cloud platform built for operational complexity.
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A Fortune 500 automotive manufacturer's disaster recovery environment was not being kept in sync with production. No native NiCE CXone feature could fix it. One Primero built the solution from scratch.
Read the Full Case Study →Modernization rarely stays in one lane — it draws on cloud, custom build, and AI in almost every engagement.
Full-stack, product engineering, API integration, QA.
Azure managed services, cloud migration, optimization.
AI agents, Copilot customization, M365 integration.
Application modernization means rebuilding or migrating legacy systems, such as AS400 applications, onto current architectures. It matters because outdated systems become harder and more expensive to maintain every year, and eventually the people who know how they work retire.
Every legacy environment is different, so we start by understanding how the business actually uses the application. From there we weigh options like rebuilding, replatforming, wrapping with a modern interface, or retiring it outright, based on priorities around cost, risk, and how critical the system is day to day, and migrate to an architecture built for ongoing maintenance rather than another one-time fix.
Yes, with the right sequencing. We typically migrate in stages, running the legacy and new environments in parallel and moving one piece of functionality at a time, so a failure in one stage doesn't take down the whole operation. We plan that sequence around your operational calendar, not just the technical dependencies, so the business keeps running while the new environment gets built underneath it.
A modernized application is easier to maintain, easier to integrate with other systems, and does not depend on a shrinking pool of people who know the old platform. It also opens the door to cloud infrastructure and AI capabilities the legacy system could not support.
We take an incremental, architecture-first approach rather than a high-risk big-bang rewrite, backed by direct experience modernizing legacy systems like AS400 and CLARA400. The same partner that assesses your environment carries the work through build and into ongoing support, so nothing gets lost in a handoff.