Summary: VIAVI Solutions is seeking a Quantum Safe Test Engineer to join our global advanced innovation center in Singapore. This role focuses on hands-on laboratory testing, prototype validation, and system integration for quantum-safe communication technologies, including Quantum Key Distribution (QKD), Post-Quantum Cryptography (PQC), and hybrid secure networking solutions. Duties & Responsibilities: Key Responsibilities Conduct hands-on testing and lab operations for prototype quantum-safe communication systems. Perform functional, performance, and interoperability testing of QKD, PQC, and hybrid secure networking components. Operate and maintain optical and electronic lab instruments, such as optical spectrum analyzers and network analyzers. Develop and execute automated test scripts (Python, C++, or similar) for system validation and long-term stability testing. Set up and configure optical fibers, photonic devices, and secure network links in lab and field trial environments. Su...