We are seeking a dedicated Solution / Modernization Architect (C++ projects) to join our team. In this role, you will be pivotal in designing and shaping complex platform modernization initiatives focused on the transformation of internal C++-based enterprise systems into modern, maintainable, and scalable target solutions built on technologies such as Java and related ecosystem tools. You will work at the intersection of architecture, modernization strategy, discovery, and solution design, helping define the right target-state architecture, migration approach, and phased transformation roadmap for large and business-critical legacy platforms.Location: Poland (Krakow business trip occasionally).

Engagement type: part-time on pre-sales activities, discovery phase; full-time as more load appears. Contract agreement.What you will be doing: – Lead architecture and discovery phases for C++ platform modernization programs, covering application structure, dependencies, integration points, runtime behavior, and non-functional constraints.- Assess existing internal C++ systems, including monolithic applications, shared libraries, internal frameworks, batch or background processes, service layers, interfaces, and platform dependencies.- Define target-state architectures for modernization of legacy platforms, with a focus on Java-based solutions, modular system design, service enablement, cloud readiness, and long-term maintainability.- Design modernization strategies tailored to each platform, including incremental refactoring, modularization, service extraction, phased migration, partial rewrite, coexistence patterns, and strangler-style transformation.- Evaluate and define the role of AI-assisted code transformation within the modernization approach, including its applicability, risks, review process, and quality controls.- Define approaches for modernization of legacy business logic, internal APIs, service interfaces, integration flows, and platform components while preserving critical business behavior.- Facilitate workshops, architecture reviews, and solution design sessions with both technical and business stakeholders.- Provide architectural guidance to engineering and delivery teams during implementation, helping ensure that modernization decisions remain aligned with the intended target architecture.A successful candidate will have: – 5+ years of experience in solution architecture, modernization architecture, or enterprise application transformation.- Proven track record of designing complex modernization or migration solutions in enterprise environments.- Strong understanding of legacy application modernization challenges, especially for large C++-based internal systems with long-lived business logic and significant technical debt.- Strong understanding of modern Java-based architectures and target-state design principles for enterprise platforms.- Experience in defining differ