Salary: 125 - 150 PLN/h net+vat B2B Remote: 100% / with possibility of hybrid work from our offices in Gdynia / Warsaw / Kraków / Rzeszów   Why choose this offer? Opportunity to work on a technically challenging project focused on advanced localization solutions Real impact on a core product used in real-world, data-intensive environments Collaboration with experienced engineers   Project You will join a senior engineering team working on a product related to advanced localization and positioning technologies. The project focuses on high-performance, low-level software development, processing complex data streams and algorithms used for positioning, tracking, and spatial analysis.   What you will be doing: Design, develop, and maintain high-performance software components written in C++ Work on core system modules related to data processing, positioning, and localization logic Optimize existing solutions with a strong focus on performance, stability, and scalability Collaborate closely with other engineers, architects, and technical stakeholders Participate in technical discussions and contribute to architectural and design decisions Ensure code quality through reviews, testing, and adherence to best engineering practices   Expectations: Strong commercial experience in C++ development (Senior level) Solid understanding of performance-critical and low-level software concepts Experience with multithreading, concurrency, and memory management Ability to work independently and take ownership of assigned tasks Good communication skills and readiness to collaborate in an international team Nice to have: experience with mobile platforms (Android / iOS) or cross-platform development   Technologies you'll work with C++   Client – why choose this particular client from the Jit portfolio? Our client is a technology-driven, international organization developing advanced software solutions used globally. They combine strong engineering culture with a product mindset, focusing on quality, performance, and long-term maintainability. The project offers exposure to complex technical challenges, cooperation with highly skilled specialists, and the opportunity to work on solutions that have real-world impact beyond typical enterprise systems.   About Jit Team The Human factor of IT - it's not just a slogan, it's a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 700 experienced experts. We create highly specialised teams for clients from all over the world. We offer team members developmental projects, a wide range of benefits and a proprietary professional development programme. Behind our maxim are also charitable and educational activities. We support pupils and students by donating learning equipment. We offer internships to help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We are a Polish company and we share what we have achieved over 15 years of activity. By supporting indigenous initiatives, we ensure the circulation of good energy.