Job Description Are you an experience C++/Qt Software Architect with unmatched expertise in crafting innovative solutions? At ALTEN, we're inviting a top-tier software professional to lead the charge in redefining the future of naval technology. This is your chance to tackle an exciting challenge: designing next-generation Intelligence Surveillance Reconnaissance (ISR) systems for the maritime defence sector. With your deep knowledge of C++ and Qt frameworks, you will play a pivotal role in creating robust interfaces that deliver new functionality while preserving critical UI/UX standards relied upon in mission-critical scenarios. This role will be h ybrid with 3 days per week on-site requirement. Key Responsibilities: Lead the redesign and development of advanced HCI/HMI solutions for naval ISR systems in the defence sector. Apply your expert-level knowledge of C++ and Qt to architect high-performance, scalable, and secure systems. Take ownership of the software architecture, ensuring robust designs that meet operational requirements and long-term maintainability. Collaborate with cross-disciplinary engineering teams to ensure seamless system integration. Maintain and enhance UI/UX consistency, enabling new functionalities without disrupting end-user workflows. Write detailed software design documents and requirement specifications, ensuring clarity and precision. Uphold the highest standards of secure coding practices for mission-critical systems in the defence environment.