C++ Modernization Engineer (VS 2022 / Windows / COM)

We are looking for a senior C++ engineer to lead the modernization of multiple legacy C++ products. The project includes upgrading dependencies from legacy MSVC++ Redistributables (2010–2017) to MSVC++ 2022, ensuring full compatibility with Visual Studio 2022, modernizing build pipelines, and validating functional stability across 8 components. Project information: • Type of project: Consulting • Office location: Warszawa • Work mode: Remote • Budget: 135 PLN net /h - b2b • Project length: 6 months with an option for extension • Only candidates with citizenship in the European Union and residence in Poland • Start date: ASAP (depending on candidate availability) Key Responsibilities • Migrate all products to Visual Studio 2022 • Remove obsolete C++ runtime dependencies • Refactor legacy code for modern toolsets • Update CI/CD pipelines (Bitbucket preferred) • Validate third-party integrations (Boost, Solace C Driver, LZO, etc.) • Fix known issues and support final sign-off Requirements • Strong experience in modern & legacy C++ • Deep knowledge of Windows development (Win32, DLLs, services, file systems) • Hands-on experience with COM / ActiveX • Migration experience from older Visual Studio versions • Strong debugging and refactoring skills • Experience with MSBuild and CI/CD pipelines Nice to have: • Solace C Driver (7.x) • WebSphere MQ client development • Boost-based services • LZO compression library • Cross-platform builds (Windows & UNIX environments) We offer: • Remote working model • Full-time job agreement based on b2b • Private medical care with dental care (covering 70% of costs) + rehabilitation package. Family package option possible • Multisport card (also for an accompanying person) • Life insurance