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Backend Developer • R&D • Tel-Aviv Description XTEND , a global leader in advanced human-guided autonomous drone systems, is looking for a Backend Software Developer to join our R&D team and take part in building the core software that powers our real-time autonomous and mission-critical systems used by defense and security forces worldwide. As part of our core development team, you will design, develop, and maintain high-performance backend software written in C++ , supporting real-time data processing, control flows, and system integration. You will work closely with cross-disciplinary teams and take ownership of backend services throughout their full lifecycle - from design and development to deployment in production environments. This is a unique opportunity to work on complex, real-world systems at the intersection of robotics, autonomy, and high-performance software engineering . Responsibilities • Design, develop, and maintain high-performance backend software in C++ • Implement robust, scalable, and efficient system components for real-time operation • Collaborate with diverse teams across all XTEND disciplines to bring innovative ideas to life • Integrate and test various internal and external APIs • Participate in architecture design, technical decision-making, and system integration • Optimize performance, reliability, and resource usage for mission-critical environments • Conduct code reviews and ensure high code quality and adherence to best practices • Debug, profile, and maintain complex production systems Requirements • At least 5 years of hands-on experience developing C++ • Strong understanding of software engineering fundamentals, including OOP, memory management, and multithreading • Experience developing and maintaining complex backend or system-level software • Experience working in Linux environments • Experience working with version control and development tools (Git, Jira, Bitbucket, etc.) • Ability to work independently, take ownership, and learn quickly Advantages • Experience working with ROS2 • Familiarity with DDS-based communication protocols • Background in robotics, autonomous systems, or real-time distributed systems • Experience with performance or mission critical software • Experience with Docker and containerized deployments