Quantum Scientist (Fundamental Unit)

About the role

{"id":1096992,"type":"requisition_detail","name":"Job Description","value":"## About OptQC\nOptQC is a deep-tech startup spun out of the University of Tokyo, founded with the mission of achieving the social implementation and commercialization of \"optical quantum computers.\"\nWhile multiple modalities exist in the quantum computing landscape, we focus on the optical quantum approach. We are confident that this method is the most suitable for practical application and widespread adoption due to its inherent scalability and seamless integration with optical communications. Through continuous research and development, we aim to balance energy efficiency with high computing power, overcome the limits of human information processing, and contribute to a sustainable society.\n\n## Background\nToward the practical application of optical quantum computers and the dramatic improvement of their computational performance, further enhancing the purity of \"squeezed light\"—our fundamental resource—is an urgent priority. To achieve breakthroughs in this highly challenging technical hurdle and unlock the ultimate limits of quantum performance, deep and broad academic expertise is essential.\nWe are seeking a researcher who can autonomously lead R\u0026D activities while maintaining a holistic view of the entire optical system, and who will co-create the foundation of our next-generation hardware.\n\n## Key Responsibilities\nAs a member of the Fundamental Unit, you will lead research focused on achieving high-purity free-space squeezed light and high-precision measurements, utilizing a PPLN waveguide as the light source.\nSqueezed light is the fundamental resource and key to realizing the optical quantum computers we are developing. This research will play a core role in dramatically improving the performance of our quantum computing systems.\n\nIn this position, you will be expected to go beyond simply executing experiments. We expect you to demonstrate highly original ideas, advanced experimental skills, and strong project management capabilities in quantum optics experiments.\n\nExample of Specific Responsibilities: \n- Define requirements for identifying and eliminating physical bottlenecks to improve the purity of squeezed light. Design, construct, and evaluate overall systems and experimental setups for proof-of-principle demonstrations.\n- Analyze various noise sources (optical, electrical, and environmental) in homodyne measurement systems, and formulate/execute approaches for achieving ultra-low noise and high-precision measurements.\n- Propose novel experimental methods based on the latest academic research and drive proof-of-concept experiments.\n- Actively participate in technical discussions to steer the direction of the experimental team, and provide technical guidance and mentoring to junior members.\n\n## The Role \u0026 Impact\n- Creation of Core Technology of quantum computer: \n - Shape the ultimate performance of \"squeezed light\"—the heart of our optical quantum computers—and directly drive system-wide breakthroughs with your own hands.\n- High Research Autonomy: \n - Tackle unprecedented challenges with significant autonomy, from selecting technical approaches to designing and constructing experimental setups.\n- Top-Tier Collaborative Environment: \n - As a startup spun out of the University of Tokyo, we provide an environment where you can engage in daily discussions with leading experts in hardware, software, and theory to mutually elevate your expertise.","selected":true},{"id":1096993,"type":"requisition_detail","name":"Required Qualifications","value":"- Degree: Master’s or Ph.D. in one of the following fields:\n - Optics: Lasers, nonlinear optics, squeezed light, gravitational-wave interferometers, etc.\n - Quantum: Quantum information physics, quantum optics, etc.\n- Research Experience: 3+ years of practical research experience in an experimental field (including research during a Ph.D. program).\n- Autonomous Execution: Ability to autonomously execute the entire cycle of quantum optics experiments—from design and construction to measurement, issue identification, and resolution.\n- Technical Skills \u0026 Experience:\n - Practical experience handling and aligning optical elements in both free-space and fiber-optic systems.\n - Foundational knowledge and experimental experience related to nonlinear optics (e.g., PPLN).\n - Experience operating and evaluating data with measurement instruments (oscilloscopes, spectrum analyzers, network analyzers, etc.).\n- Language Skills: English proficiency at a level sufficient for smooth technical discussions with other researchers and experts, as well as reading academic papers.","selected":true},{"id":1096994,"type":"requisition_detail","name":"Preferred Qualifications","value":"- Experience writing peer-reviewed scientific papers as a first author.\n- Knowledge or research experience utilizing squeezed light or continuous-variable (CV) quantum computing.\n- Practical or research experience in achieving low-noise and high-precision homodyne measurement systems.\n- Experience in research project management or in mentoring/guiding junior researchers.\n- Conversational proficiency in Japanese / Experience working at a quantum computing-related company.","selected":true},{"id":1096995,"type":"requisition_detail","name":"Ideal Candidate Profile","value":"- Individuals who understand hardware from first principles and can approach problems through both theory and experimentation.\n- Individuals who can autonomously formulate hypotheses for unknown technical challenges and persistently drive verification and problem resolution.\n- Individuals who enjoy mentoring junior members, actively participate in open team discussions, and can positively influence others with their technical expertise.","selected":true},{"id":1096996,"type":"requisition_detail","name":"Salary","value":"13 million JPY or more (Determined based on experience and skills)","selected":true},{"id":1096997,"type":"requisition_detail","name":"Location","value":["15th Floor, IT tower TOKYO, 3-28-13 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-0021, Japan"],"selected":true},{"id":1097072,"type":"requisition_detail","name":"Employment Type","value":"Full-time","selected":true},{"id":1098014,"type":"requisition_detail","name":"Hiring Process","value":"- Document Screening *Please submit a publication list\n- Interview (2–3 rounds) *Includes a research / work presentation\n- Offer Meeting\n\n[Additional Information]\n- Interviews are generally conducted online; however, candidates will be required to visit our office at least once.\n - Please consult with us if this is difficult for you.\n - Transportation expenses will be reimbursed for candidates traveling from distant locations (subject to company regulations).\n- Reference checks may be requested during the selection process.\n- The selection process and the number of interview rounds are subject to change.","selected":true}

Source: OptQC's careers page via Html. Read by TQI on 1 Nov 2026.