Researcher - Quantum Machine Learning & Quantum Information

Terra Quantum

The Role  The Senior Systems Software Engineer will be a member of the core team building the Quantum Key Distribution system. The focus is on high-performance Python services on Linux, algorithm optimization and acceleration (also via hardware offload), and the role spans defining software architecture, integrating with FPGA/embedded subsystems, and turning requirements into reliable, observable software.   The Senior Systems Software Engineer leads and co-owns the overall internal QKD software architecture and client-facing software API. By setting engineering standards, mentoring, and unblocking delivery, they ensure predictable releases and a strong execution cadence.  The Responsibilities  The Senior Systems Software Engineer should expect to work in the following activities.  * System architecture * Leading and co-owning the QKD software architecture: control plane services, key sifting/postprocessing integration, configuration management, monitoring, and external interfaces  * Defining module boundaries and service APIs; evolving the system toward clear data/control-plane separation  * Efficient implementation and hardware/software integration * Designing and implementing high-performance Python services on Linux (asyncio, WebSockets, NumPy); profiling and tuning for latency and throughput * Developing, profiling, and optimizing QKD sifting and postprocessing algorithms (signal handling/processing, error correction/information reconciliation, LDPC, privacy amplification) to maximize key rate and minimize end-to-end latency; applying algorithmic improvements and implementation techniques (vectorization, concurrency/async, memory/layout tuning, C/C++ extensions, SIMD/CUDA/GPU/FPGA offload where appropriate) * Defining and maintaining robust interfaces with embedded/FPGA system components over UART/USB/PCIe/Ethernet; respecting realtime constraints and failure modes  * Guiding downstream system integration (WebSockets/gRPC/REST) and ensuring clear contracts and backward compatibility * Designing for test – building mocks/simulators and automated test systems  * DevOps * Building and maintaining CI/CD with Docker and GitHub Actions; automated tests, static analysis, artifact management, and release pipelines * Establishing observability (structured logging, metrics, tracing) and operational runbooks; improving reliability and debuggability with SLOs/alerts * Embedding security and crypto hygiene by default: secure transport, secrets management, key handling, and coordination with cryptography stakeholders * Adding performance benchmarking and regression tracking for key rate and end-to-end latency; integrating profiling/flame graphs into CI and enforcing performance budgets  The Requirements  The Senior Systems Software Engineer is expected to have the following qualifications and experience.  * 5+ years of Python development; 3+ years leading or co‑owning service/system architecture for a hardware‑first product  * Strong Linux async Python (asyncio, WebSockets), concurrency (threads/processes), profiling/tuning  * Proven custom hardware integration (MCU, FPGA) over UART/USB/PCIe/Ethernet  * CI/CD with Docker and GitHub Actions; automated testing, static analysis, artifact management  * Experience with GPU & CUDA acceleration/optimization; SIMD familiarity  * Production observability (logging/metrics/tracing) and incident/debug practices  * Working knowledge of relational/key-value/time-series stores (PostgreSQL/Redis/Prometheus)   * Security by Default mindset: secrets, secure transport, key/crypto hygiene  * Proficiency in written and spoken English  * Ability to be on-site in Munich office several times per week  * Applicants must have the right to work in Germany at the time of application. We do not provide visa sponsorship.  * Must be eligible to obtain and maintain either (a) a U.S. Secret (or higher) security clearance or (b) an EU SECRET (or national equivalent) personnel security clearance. Employment is contingent on meeting applicable government security requirements; eligibility is determined by the competent authorities. Good to have:  * Experience with QKD systems, cryptography, or high‑rate data pipelines   * Exposure to C/C++ for low‑level interfacing and FPGA/embedded ecosystems   * Familiarity with gRPC/Protobuf, schema/versioning strategies, and Kubernetes  The Rewards  We are an international team of quantum technology experts and dedicated business creatives that are working to bring quantum-enabled solutions to the global market. Our brilliant team members enjoy a high degree of freedom working remotely or joining one of our office spaces. We have a vibrant, enthusiastic, passionate and creative culture driven by trust, excellence and continuous improvement. If you join the Terra Quantum team, you can expect:  * An opportunity to work with some of the brightest minds in the pioneering field of Quantum Technologies as well as an experienced and progressive Leadership team * Gain knowledge of some of the most cutting-edge technology developments in science & engineering  * A chance to be part of one of Europe’s leading technology firms of the upcoming decades * Welcoming, friendly, and professional colleagues * A personal development plan with clear goals for advancement * A competitive salary  * Flexible working arrangements  * A diverse and supportive atmosphere, where innovation and initiative are encouraged   If you are enthusiastic about positively impacting the world and helping to drive the second quantum revolution, let’s talk!    Company description  Quantum technologies have the potential to solve some of the world’s biggest challenges. There have been great advances in all areas of quantum technologies, and new fields of application are opened up every day. Hybrid computer systems that combine classic high-performance computing with quantum computers are already being used to develop solutions in sectors such as logistics, healthcare, finance, energy, automotive and aerospace. Quantum mechanical predictions are also used to obtain unprecedented precision in measurements, generate unbreakable codes, and form the basis of impenetrable communication networks. All these developments are happening right now, and they are happening at Terra Quantum.  At Terra Quantum we are building the world’s leading Quantum Technology company. We offer customers world-class quantum technology expertise organized as “quantum-as-a-service”: hybrid quantum algorithms, quantum compute and quantum enabled security solutions. Through the proprietary quantum cloud, customers have access to a unique technology platform which provides a toolset to solve real-world challenges in the realms of machine learning, optimization and simulation, today. In 2022, the company closed its Series A financing round with a $75m fundraise.  Quantum physics has, in some respects, parallels to the machine language of our computers-the zeros and ones into which our keyboard or touchscreen instructions are translated for execution in the computer-only on a larger scale: it is the machine language of the universe. The second quantum revolution is based on the control of individual quantum systems, such as individual atoms. We use quantum computers to solve currently unsolvable problems, simulate molecules and their interactions, find drugs for diseases that are not yet curable, find new materials, or make artificial intelligence stronger. Quantum is now.  Terra Quantum is a future-focused quantum services and technology company working on making the second quantum revolution a reality. Terra Quantum’s activities span all areas, markets, and industries globally.  * Our purpose is to pioneer quantum technologies to change the world for good, * Our vision is to lead the quantum revolution and be the trailblazer in technology solutions, shaping a better future for humankind to thrive in, and * Our mission is to unleash the power of quantum tech to deliver meaningful solutions today Terra Quantum is an equal opportunities employer, committed to diversity, inclusion and employee well-being.

Terra Quantum

The Role  The Electronics Design Engineer will be a member of the hardware team delivering low‑noise, high‑frequency mixed‑signal control and instrumentation for our QKD systems. The role spans end‑to‑end board design in Altium (schematics, layout, DFM/DFT), precision analog signal chains, prototype bring‑up/validation, and, where needed, STM32 (F4/H7) firmware in C for control, calibration, and integration. You will work with existing automated measurement software in Python and extend it where needed, collaborate closely with optics, FPGA, and software, and support manufacturing.  The Responsibilities  The Electronics Design Engineer should expect to work in the following activities.  * Hardware design, prototyping, and validation  * Owning hardware architecture and component selection for precision, lownoise, and highfrequency performance  * Designing lownoise analog and mixedsignal schematics and PCB layout in Altium  * Managing prototype builds and vendors; executing bringup; precision and highfrequency measurements (DC accuracy, noise spectral density, longterm drift, frequency response); lab debug and reworks  * Working with existing automated measurement software (Python) and extending it where needed  * Firmware development on STM32 and interfacing in Python (secondary scope) * Designing and modifying STM32 F4/H7 firmware in C (HAL) * Interfacing with Python drivers/scripts for control and data acquisition  * Test automation and CI * Building and extending automated board/firmware test setups (Python; instrument control via VISA/SCPI through the existing automated measurement software) to capture logs/metrics * Establishing repeatable build/test pipelines for firmware and board validation; archiving artifacts, measurements, and calibration data  * Manufacturing support and releases * Producing manufacturing packages; supporting vendors through fabrication and assembly; designing/maintaining simple test fixtures * Owning hardware/firmware versioning and release notes; maintaining traceable revisions  * Cross‑team collaboration and documentation * Collaborating with optics/FPGA/software on interfaces, calibration, timing/latency budgets, and integration * Authoring design docs, analyses and budgets, calibration/bringup procedures, and change logs * Maintaining detailed experimental documentation in Confluence  The Requirements  The Electronics Design Engineer is expected to have the following qualifications and experience.  * 5+ years analog/mixedsignal electronics design for R&D/instrumentation; strong Altium for schematics and PCB layout; DFM/DFT  * Deep analog fundamentals: lownoise signal chains (e.g., highfrequency TIAs/preamps, ADC drivers, antialiasing/reconstruction filters), precision references/measurements, grounding/guarding/shielding, lowleakage layout  * Ability to set/close noise and error budgets; tolerance/Monte Carlo and worstcase analysis; SPICEclass simulation (LTspice/PSPICE, etc.)  * Lab expertise: precision/HF measurements (DC accuracy, noise spectral density, longterm drift, frequency response, temperature dependency); oscilloscopes, spectrum analyzers; VNA as applicable  * Awareness of EMC/EMI and safety constraints; designforcompliance and precompliance testing  * Python for lab/test automation and instrument control; Git‑centric workflow  * Proficiency in written and spoken English  * Ability to be on‑site in Munich or Potsdam offices to work with hardware, when required  * Applicants must have the right to work in Germany at the time of application. We do not provide visa sponsorship.  * Must be eligible to obtain and maintain either (a) a U.S. Secret (or higher) security clearance or (b) an EU SECRET (or national equivalent) personnel security clearance. Employment is contingent on meeting applicable government security requirements; eligibility is determined by the competent authorities. Good to have:  * STM32 F4/H7 exposure; C with HAL  * Familiarity with STM32 bootloaders/updates (DFU/OTA)  * Experience with calibration flows and production test fixtures   The Rewards  We are an international team of quantum technology experts and dedicated business creatives that are working to bring quantum-enabled solutions to the global market. Our brilliant team members enjoy a high degree of freedom working remotely or joining one of our office spaces. We have a vibrant, enthusiastic, passionate and creative culture driven by trust, excellence and continuous improvement. If you join the Terra Quantum team, you can expect:  * An opportunity to work with some of the brightest minds in the pioneering field of Quantum Technologies as well as an experienced and progressive Leadership team * Gain knowledge of some of the most cutting-edge technology developments in science & engineering  * A chance to be part of one of Europe’s leading technology firms of the upcoming decades * Welcoming, friendly, and professional colleagues * A personal development plan with clear goals for advancement * A competitive salary  * Flexible working arrangements  * A diverse and supportive atmosphere, where innovation and initiative are encouraged   If you are enthusiastic about positively impacting the world and helping to drive the second quantum revolution, let’s talk!    Company description  Quantum technologies have the potential to solve some of the world’s biggest challenges. There have been great advances in all areas of quantum technologies, and new fields of application are opened up every day. Hybrid computer systems that combine classic high-performance computing with quantum computers are already being used to develop solutions in sectors such as logistics, healthcare, finance, energy, automotive and aerospace. Quantum mechanical predictions are also used to obtain unprecedented precision in measurements, generate unbreakable codes, and form the basis of impenetrable communication networks. All these developments are happening right now, and they are happening at Terra Quantum.  At Terra Quantum we are building the world’s leading Quantum Technology company. We offer customers world-class quantum technology expertise organized as “quantum-as-a-service”: hybrid quantum algorithms, quantum compute and quantum enabled security solutions. Through the proprietary quantum cloud, customers have access to a unique technology platform which provides a toolset to solve real-world challenges in the realms of machine learning, optimization and simulation, today. In 2022, the company closed its Series A financing round with a $75m fundraise.  Quantum physics has, in some respects, parallels to the machine language of our computers-the zeros and ones into which our keyboard or touchscreen instructions are translated for execution in the computer-only on a larger scale: it is the machine language of the universe. The second quantum revolution is based on the control of individual quantum systems, such as individual atoms. We use quantum computers to solve currently unsolvable problems, simulate molecules and their interactions, find drugs for diseases that are not yet curable, find new materials, or make artificial intelligence stronger. Quantum is now.  Terra Quantum is a future-focused quantum services and technology company working on making the second quantum revolution a reality. Terra Quantum’s activities span all areas, markets, and industries globally.  * Our purpose is to pioneer quantum technologies to change the world for good, * Our vision is to lead the quantum revolution and be the trailblazer in technology solutions, shaping a better future for humankind to thrive in, and * Our mission is to unleash the power of quantum tech to deliver meaningful solutions today Terra Quantum is an equal opportunities employer, committed to diversity, inclusion and employee well-being.

Quantum Motion

ABOUT THE ROLE AND TEAM The Intelligent Automation Team develops the software that controls, and optimises our Quantum Processing Units. Working in close partnership with the Quantum Hardware Team, this group works to enable our processors to perform at their limits. Their work transforms raw quantum hardware into a usable platform by leveraging traditional software engineering alongside machine learning and other optimisation techniques. Together, these teams form the engine room of Quantum Motion’s technology, bridging physics, engineering, and computation to unlock the next generation of quantum capability. As a member of our evolving scale-up, you’ll help shape the next stage of quantum computing. We’re still a small team, which means your expertise will directly influence our technology, our culture, and our trajectory, while giving you room to grow as we scale. OUR TEAM This role forms part of our investment in state-of-the art facilities in Maryland, US. It reflects our commitment to driving innovation and collaborating with some of the brightest minds in the quantum industry, and additionally taps into the strong semiconductor and cryogenic ecosystem. Our mission is global and this is a rare and exciting opportunity to join a team which is shaping the future of quantum computing.     As part of our lean, high-impact and rapidly growing team, you will be working closely with our scientists, engineers and experts in a dynamic environment to make the site run smoothly and compliantly from day one, dedicated to contributing to the development of scalable quantum computers based on silicon technology. FUNCTIONS OF THE ROLE * Work with experimental experts to benchmark and optimise quantum processors based on spins in silicon quantum dots * Develop automated calibration routines for long term maintenance of QPU performance * Devise measurement and analysis roadmaps to test and optimise quantum operations EXPERIENCE - ESSENTIALS * PhD degree in physics, chemistry, or engineering                     * Proven track record of leadership in dynamical characterisation and control of spin qubits  in solid-state systems  * Experience in defining research goals and leading teams toward successful technical outcomes                      * Familiar with the use of high-frequency electronics         * Knowledge of quantum information systems and operations * Ability to independently design and carry out complex experiments; perform data analysis and preparation of technical reports and presentations                 * Knowledge of data acquisition software (Python, Matlab)                     * Ability to lead and motivate a team * Exceptional ability to communicate complex technical strategies to stakeholders, write grant applications, and author technical reports EXPERIENCE - DESIRABLE * Strong experience with machine learning techniques and their application to complex physical systems. * Demonstrated capability in benchmarking quantum systems using methods such as randomised benchmarking and gate-set tomography. * Proven team leadership and people-management skills, including supervising technical staff and guiding cross-functional research efforts. * Experience mentoring junior researchers and effectively supervising research students to support their academic and professional development. * Skilled in the simulation of spin-based quantum systems and the dynamical characterisation of silicon-based nanoelectronic devices. * Hands-on experience operating and troubleshooting deep cryogenic measurement systems.             * Experience with the dynamical characterisation silicon-based nanoelectronic devices * Ability to supervise research students BENEFITS * Be part of a creative, world-leading team * Competitive salary and share options scheme * Region-specific benefits (e.g. Health Insurance) * Choose your own laptop/kit  * Flexible working * Located in Maryland College Park - a state-of-the-art quantum hub  EEO STATEMENT Quantum Motion is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, age, pregnancy, genetic information, or any other characteristic protected by applicable federal, state, or local laws.