Build quantumnetworks with us.

Design and develop optical instruments for quantum networks, including quantum switches, Bell-state analyzers, and quantum frequency converters. From optical design and assembly to alignment and performance evaluation, you will turn experimentally demonstrated technologies into instruments that operate reliably.

Responsibilities

• Design, build, and evaluate fiber and free-space optical systems for quantum networks.
• Conduct optical experiments, evaluate performance, and make improvements in areas such as single-photon measurement, interference, and wavelength conversion.
• Design, evaluate, and improve optical instruments for greater stability and reproducibility.
• Develop automated optical alignment and stabilization techniques and integrate them with control systems.
• Work with the team on instrument integration, lab and field demonstrations, and hardware debugging.

Requirements

• Hands-on experience building, aligning, and evaluating optical systems in optics, lasers, photonics, optical communications, optical metrology, or a related field
• Ability to analyze experimental results, considering measurement errors and noise, identify and troubleshoot problems, and improve optical systems
• Ability to collaborate with researchers and engineers from other fields on optical experiments and optical instrument development

Preferred experience and working arrangements

Experience with single-photon measurement, HOM interference, Bell-state measurement, nonlinear optics, quantum frequency conversion, automated stabilization, or optical packaging is welcome. We do not expect experience in every area, and a research background in quantum science is not a universal requirement. You can apply your existing optical design and experimental experience to this work. The role includes lab work and on-site bring-up.

Research new optical technologies for quantum networks, including quantum frequency conversion, Bell-state measurement, photon interference, and quantum switching. With a focus on physical processes, optical circuits, and measurement techniques, you will develop and validate new ideas through theoretical analysis, numerical modeling, and proof-of-principle experiments.

Responsibilities

• Explore and propose new optical technologies and quantum information processing schemes for quantum networks.
• Use theoretical models and numerical calculations to analyze quantum-state conversion and measurement processes and evaluate efficiency, noise, and required resources.
• Design proof-of-principle experiments for new schemes and carry them out, from building and integrating experimental setups to verifying the solution.
• Evaluate the feasibility and performance limits of proposed technologies and compare them with existing schemes.
• Collaborate with researchers and engineers from other fields to apply research findings to optical instruments and quantum network systems.
• Write papers, present at conferences, and submit invention disclosures.

Requirements

• Experience independently identifying research problems, testing hypotheses, and interpreting results in quantum optics, nonlinear optics, photonic quantum information, or a related field. Candidates should have a Ph.D. or equivalent research experience and achievements.
• Expertise in theory and numerical analysis, or in experimental research
• Ability to explain how your research differs from prior work, the scope of its verification, and the validity and limits of its results

Preferred experience and working arrangements

Research experience in quantum frequency conversion, single-photon generation and detection, HOM interference, Bell-state measurement, integrated photonics, or quantum measurement theory is welcome. If your focus is experimental research, you will build experimental setups yourself and collaborate with the team on implementation. The role includes laboratory work and participation in field demonstrations. Establishing operating conditions and limits is also valued as a research outcome.

Apply your expertise in FPGA design, embedded control, or electronic circuit design to develop hardware and firmware for quantum network instruments. You will implement signal acquisition from single-photon detectors, timing-data processing, and optical instrument control to meet requirements for precision, latency, and throughput. A research background in quantum science is not required.

Responsibilities

• Design and develop systems for precise timing measurements, signal processing, and real-time control using FPGAs and embedded systems.
• Design, prototype, and evaluate electronic circuits for optical instrument control and measurement.
• Implement precision time synchronization and low-latency control across multiple instruments, and measure and evaluate system latency, jitter, and throughput.
• Maintain schematics, code, timing specifications, and evaluation data, and carry out system integration in the lab.

Requirements

• Development experience in at least one of FPGA design, embedded software, or electronic circuit design
• Ability to use measurement equipment relevant to the applicant’s area of expertise to evaluate behavior and performance and diagnose faults
• Ability to implement solutions based on technical requirements and document system behavior under normal and abnormal conditions

Preferred experience and working arrangements

Experience with HDL-based FPGA development, real-time processing, ADCs and DACs, RF measurement, precision time synchronization, single-photon detection, low-latency feedback, or PCB prototyping is welcome. You do not need expertise in all three areas of FPGA design, embedded systems, and electronic circuits. Responsibilities center on your strengths as you build systems with colleagues, combining off-the-shelf products and outsourced development as needed. You will take the functions you are responsible for from design through integration, ensuring they can be controlled and monitored through software.

Research quantum network architectures, protocols, and control schemes for distributed quantum computers and the quantum internet. Working on entanglement generation and distribution, network resource management, and coordination between quantum systems, you will develop and evaluate new approaches through simulation, prototyping, and hardware testing.

Responsibilities

• Identify research problems based on the state of the art and quantum-device constraints, and propose new architectures, protocols, and control schemes.
• Explore topology, routing, placement and sharing of Bell-state analyzers, resource management, and scheduling.
• Develop performance models and simulators that account for loss, noise, and latency, and prototype algorithms and protocols.
• Compare proposed and existing schemes under the same conditions to evaluate communication and distributed-computing performance and required resources. Also conduct experiments using real hardware.
• Document research findings through reproducible code, datasets, and technical documentation., and develop them into papers and invention disclosures in line with the company’s IP policy.

Requirements

• Experience independently identifying research problems, proposing schemes, and conducting comparative evaluations in networking, distributed systems, quantum information, computer architecture, mathematical optimization, or a related field
• Experience implementing models, algorithms, or protocols in Python, C++, Rust, or a similar programming language
• Ability to explain how your research or development differs from prior work, its assumptions and evaluation conditions, and the limits of its results

Preferred experience and working arrangements

Experience with quantum networks, distributed quantum computing, discrete-event simulation, mathematical optimization, modeling based on experimental data, or hardware evaluation is welcome. Ph.D. is not a strict requirement; we also welcome candidates with strong research contributions in industry or demonstrated achievements through publicly available implementations. Responsibilities in theory, simulation, protocol implementation, and hardware evaluation are set according to your expertise.

Develop software to control quantum networks and integrate it with optical instruments, electronic control, and measurement systems. You will develop and build systems that enable research-stage quantum networks to operate in practice, from handling network communication requests and coordinating instruments to automating calibration, monitoring, and fault recovery.

Responsibilities

• Design and develop software for quantum network control and management.
• Design control schemes and system architectures that coordinate multiple quantum network instruments.
• Integrate with optical instruments and measurement and control equipment, and automate experiments and measurements.
• Design, evaluate, and improve systems to ensure stable and reliable operation.
• Plan and conduct laboratory and field demonstrations, including on-site system setup, operation, fault isolation and troubleshooting, and documentation and analysis of results.

Requirements

• Experience designing and developing software with multiple interacting components, or developing systems that combine hardware and software
• Development and evaluation experience using programming languages such as Python, C++, or Rust
• Ability to verify behavior and analyze faults on real hardware, and document procedures and results so that other team members can reproduce them

Preferred experience and working arrangements

Development or research experience in distributed systems, network control, embedded systems, measurement and control software, optical communications, or time synchronization is welcome. A research background in quantum science is not required. The role includes travel, installation work, and participation in experiments for on-site bring-up and demonstrations. Depending on your background and expertise, you may also contribute to research on new control, calibration, and operating methods.