Software Engineer (Quantum Control Systems)
Confirmed on the employer's own hiring board on Oct 27, 2026. First seen by Alion on Oct 26, 2026.
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Software Engineer (Quantum Control Systems)
Software Engineer (Quantum Control Systems)
Job Title: Software Engineer (Quantum Control Systems)
Job Summary:
Design, implement and benchmark software stack that powers our ion trap quantum computers. Develop layered software interfaces for hardware control systems, including FPGAs and RFSoC. You will work closely with researchers to develop prototypes and implement algorithms that support our quantum computing efforts. This is an ideal opportunity to apply technical skills to real-world impacts in the early stages of a deep tech start-up.
Full Time
Okinawa
Areas of expertise: Software Development, Control Software for Hardware Integration, Cloud Computing, FPGA and RFSoC
Job Description (Responsibilities)
Design, implement, and evaluate software systems for quantum computing - including ion shuttling control, pulse sequence management, quantum state tomography, and cavity stabilization
Develop layered software interfaces for FPGA and RFSoC hardware control systems
Collaborate with researchers to prototype and implement quantum algorithms
Build and operate cloud server infrastructure supporting experimental control, data management, and team collaboration
Maintain and evolve quantum control software with high reliability and performance standards
Contribute to documentation, code review, and open-source community engagement where applicable
Required Qualifications
Master's or PhD degree (or expected completion) in Physics or a relevant field
Required Skills
Development experience using Python, C++, or similar languages
Familiarity with development tools such as Git
Experience with Linux development environments
Familiarity with FPGA development or RFSoC systems
Git-based collaborative development experience
Docker and distributed computing/networking fundamentals
Business-level English - daily work communication is in English
Preferred Skills
Programming with control system APIs
Experience using quantum SDKs (e.g., Qiskit, Cirq)
Familiarity with cloud infrastructure (AWS, GCP)
Experience setting up CI/CD environments
Contributions to open-source software
Experience filing patents
Experience in team-based software development
Experience collaborating with researchers
Education
PhD (completed or expected) in a relevant field (Master's degree also acceptable)
Job Information
Job Type
Full Time
Location
Okinawa
Research Areas
Software Development, Control Software for Hardware Integration, Cloud Computing, FPGA and RFSoC
Location
Onna, Okinawa, Japan
Work Style
Domestic and international travel may be required
Benefits
Full social insurance coverage (health, pension, employment, and workers' compensation)
Annual health checkups
Ready to Apply?
Join our team and help shape the future of quantum computing
ApplyAbout Qubitcore
Founded in 2024, Qubitcore Inc. is a deep tech startup originating from the Okinawa Institute of Science and Technology (OIST). We are developing and delivering next-generation quantum computers designed to tackle problems that are computationally intensive for classical systems-such as drug discovery, climate modeling, financial simulations, and generative AI. Our mission is to bring quantum computing into real-world applications with greater speed and precision.
Our headquarters is located in Yokohama, while our R&D center operates within the OIST campus in Okinawa. Currently, our team consists of 3-5 members (including part-time collaborators), working closely with OIST to realize Japan's first distributed quantum computer.
Our distributed architecture connects multiple quantum processing units (QPUs) via photonic links to form a high-performance, networked quantum system. This approach enables large-scale quantum computation that was previously impractical, opening new frontiers in quantum technology.