The project:Our client specializes in innovative software solutions for public safety, transport, air traffic, maritime, and defense sectors with a focus on incident and crisis management in global settings. Our projects are technically and organizationally challenging and require a high level of expertise.You will be a part of a team of developers in which we are building an operational communication system in the safety-critical railway environment.The activities for the Scrum Team include the development of essential parts of:the user interface (designed to be very flexible and adaptable to customer needs),  the required backend (designed as application server and integrated into a Kubernetes environment),  as well as the development of the corresponding IMS (IP-Multimedia System) application server for the rail-specific voice communication functions. Industry: Public TransportThe number of open vacancies: 1Type of contract: B2B/ empoyment contractThe preferred scale of work: fulltimeStart date: asap, long-term cooperationType of work:  100% remoteLocation: PolandTechnologies used in the project:❖ C++ 26❖ React❖ Microservices❖ Cmake❖ GoogleTestYour tasks: Participation in the development of our performance-critical backend services. Taking responsibility of all phases of the software life cycle, from requirements engineering, design, implementation, to testing and maintenance. Evaluating and taking responsibility for architectural decisions. Contributing to the further buildout of our development infrastructure. Cooperating with the strategic and technical product management. What we expect from you: Experience in team-oriented development of complex distributed software systems in a Linux-based cloud-like environment with a strong focus on availability, continuous operation, security, and safety. Detailed knowledge of solid software design principles. Detailed knowledge of modern C++ (6+ years of experience). Experience with development tools like Git. Very good English knowledge in writing and speaking (you will be working in an international team). Willingness to travel to the headquarters (Vienna) for ramp-up. Nice to have:Experience with Python, Cassandra, RabbitMQ, Kubernetes and OpenStack, SIP and IMS (IP Multimedia Subsystem).What we can offer: flexible working hours medical insurance international clients 100% remote work annual bonuses life insurance non-corporate work atmosphere integration events additional days off (employment contract) training and development budget