Quantum Safe Test Engineer

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. Support integration of cryptographic modules, key management systems (KMS), and network security functions into testbeds. Collect and analyze experimental data, identify root causes of issues, and provide detailed test reports and improvement feedback. Collaborate with global R&D and engineering teams to refine system design and ensure test coverage for all functional components. Pre-Requisites / Skills / Experience Requirements: Education: Bachelor’s or Master’s degree in Electrical Engineering, Computer Engineering, Physics, or a related discipline. Technical Expertise: Hands-on experience with optical and electronic laboratory setups, including fiber handling, photonics alignment, and signal measurement. Proficiency in Python, MATLAB, or C/C++ for test automation, instrument control, and data analysis. Working knowledge of network protocols (Ethernet, IP, TLS, IPsec) and cryptographic concepts (key exchange, encryption). Familiarity with Quantum Key Distribution (QKD), Post-Quantum Cryptography (PQC), or quantum optics is highly advantageous. Experience with Linux environments, network configuration, and protocol analysis tools (e.g., Wireshark) preferred. Understanding of ETSI, ITU-T, or NIST quantum-safe standards is a plus. Soft Skills: Strong troubleshooting and problem-solving skills. Excellent attention to detail and lab discipline. Effective communication skills for cross-site collaboration. Self-driven, adaptable, and comfortable working in a hands-on R&D lab environment. Preferred Qualifications Experience in optical or network equipment testing, secure communication prototypes, or cryptographic hardware evaluation. Prior involvement in quantum communication research, secure network testbed development, or telecom field trials. Knowledge of hardware–software co-testing, optical calibration, and time synchronization systems. Contributions to research projects, standardization activities, or patents related to quantum-safe networking. VIAVI empowers Service Providers and IT organizations to manage the network lifecycle for complex 5G and Fiber networks with intuitive instruments, systems and technologies; and our expertise in light management and optical coatings help protect the world's bank notes from counterfeiters, enhance the colors you see, and enable advanced technology such as 3D sensing. We are a team of thought leaders who have the freedom to support and innovate and look for new effective and efficient solutions for our customers.